From 32fcfd40715ed13f7a80cbde49d097ddae20c8e2 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 10 Mar 2013 20:14:08 -0400 Subject: [PATCH 001/204] make vfree() safe to call from interrupt contexts A bunch of RCU callbacks want to be able to do vfree() and end up with rather kludgy schemes. Just let vfree() do the right thing - put the victim on llist and schedule actual __vunmap() via schedule_work(), so that it runs from non-interrupt context. Signed-off-by: Al Viro --- mm/vmalloc.c | 45 ++++++++++++++++++++++++++++++++++++++++----- 1 file changed, 40 insertions(+), 5 deletions(-) diff --git a/mm/vmalloc.c b/mm/vmalloc.c index 0f751f2068c3..ef9bdf742273 100644 --- a/mm/vmalloc.c +++ b/mm/vmalloc.c @@ -27,10 +27,30 @@ #include #include #include +#include #include #include #include +struct vfree_deferred { + struct llist_head list; + struct work_struct wq; +}; +static DEFINE_PER_CPU(struct vfree_deferred, vfree_deferred); + +static void __vunmap(const void *, int); + +static void free_work(struct work_struct *w) +{ + struct vfree_deferred *p = container_of(w, struct vfree_deferred, wq); + struct llist_node *llnode = llist_del_all(&p->list); + while (llnode) { + void *p = llnode; + llnode = llist_next(llnode); + __vunmap(p, 1); + } +} + /*** Page table manipulation functions ***/ static void vunmap_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end) @@ -1184,10 +1204,14 @@ void __init vmalloc_init(void) for_each_possible_cpu(i) { struct vmap_block_queue *vbq; + struct vfree_deferred *p; vbq = &per_cpu(vmap_block_queue, i); spin_lock_init(&vbq->lock); INIT_LIST_HEAD(&vbq->free); + p = &per_cpu(vfree_deferred, i); + init_llist_head(&p->list); + INIT_WORK(&p->wq, free_work); } /* Import existing vmlist entries. */ @@ -1511,7 +1535,7 @@ static void __vunmap(const void *addr, int deallocate_pages) kfree(area); return; } - + /** * vfree - release memory allocated by vmalloc() * @addr: memory base address @@ -1520,15 +1544,25 @@ static void __vunmap(const void *addr, int deallocate_pages) * obtained from vmalloc(), vmalloc_32() or __vmalloc(). If @addr is * NULL, no operation is performed. * - * Must not be called in interrupt context. + * Must not be called in NMI context (strictly speaking, only if we don't + * have CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG, but making the calling + * conventions for vfree() arch-depenedent would be a really bad idea) + * */ void vfree(const void *addr) { - BUG_ON(in_interrupt()); + BUG_ON(in_nmi()); kmemleak_free(addr); - __vunmap(addr, 1); + if (!addr) + return; + if (unlikely(in_interrupt())) { + struct vfree_deferred *p = &__get_cpu_var(vfree_deferred); + llist_add((struct llist_node *)addr, &p->list); + schedule_work(&p->wq); + } else + __vunmap(addr, 1); } EXPORT_SYMBOL(vfree); @@ -1545,7 +1579,8 @@ void vunmap(const void *addr) { BUG_ON(in_interrupt()); might_sleep(); - __vunmap(addr, 0); + if (addr) + __vunmap(addr, 0); } EXPORT_SYMBOL(vunmap); From 84d17192d2afd52aeba88c71ae4959a015f56a38 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 15 Mar 2013 10:53:28 -0400 Subject: [PATCH 002/204] get rid of full-hash scan on detaching vfsmounts Signed-off-by: Al Viro --- fs/mount.h | 7 ++ fs/namespace.c | 229 +++++++++++++++++++++++++++++-------------------- fs/pnode.c | 6 +- fs/pnode.h | 4 +- 4 files changed, 149 insertions(+), 97 deletions(-) diff --git a/fs/mount.h b/fs/mount.h index cd5007980400..64a858143ff9 100644 --- a/fs/mount.h +++ b/fs/mount.h @@ -18,6 +18,12 @@ struct mnt_pcp { int mnt_writers; }; +struct mountpoint { + struct list_head m_hash; + struct dentry *m_dentry; + int m_count; +}; + struct mount { struct list_head mnt_hash; struct mount *mnt_parent; @@ -40,6 +46,7 @@ struct mount { struct list_head mnt_slave; /* slave list entry */ struct mount *mnt_master; /* slave is on master->mnt_slave_list */ struct mnt_namespace *mnt_ns; /* containing namespace */ + struct mountpoint *mnt_mp; /* where is it mounted */ #ifdef CONFIG_FSNOTIFY struct hlist_head mnt_fsnotify_marks; __u32 mnt_fsnotify_mask; diff --git a/fs/namespace.c b/fs/namespace.c index 6c7d31eebba4..d7bb5a55cf36 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -36,6 +36,7 @@ static int mnt_id_start = 0; static int mnt_group_start = 1; static struct list_head *mount_hashtable __read_mostly; +static struct list_head *mountpoint_hashtable __read_mostly; static struct kmem_cache *mnt_cache __read_mostly; static struct rw_semaphore namespace_sem; @@ -605,6 +606,51 @@ struct vfsmount *lookup_mnt(struct path *path) } } +static struct mountpoint *new_mountpoint(struct dentry *dentry) +{ + struct list_head *chain = mountpoint_hashtable + hash(NULL, dentry); + struct mountpoint *mp; + + list_for_each_entry(mp, chain, m_hash) { + if (mp->m_dentry == dentry) { + /* might be worth a WARN_ON() */ + if (d_unlinked(dentry)) + return ERR_PTR(-ENOENT); + mp->m_count++; + return mp; + } + } + + mp = kmalloc(sizeof(struct mountpoint), GFP_KERNEL); + if (!mp) + return ERR_PTR(-ENOMEM); + + spin_lock(&dentry->d_lock); + if (d_unlinked(dentry)) { + spin_unlock(&dentry->d_lock); + kfree(mp); + return ERR_PTR(-ENOENT); + } + dentry->d_flags |= DCACHE_MOUNTED; + spin_unlock(&dentry->d_lock); + mp->m_dentry = dentry; + mp->m_count = 1; + list_add(&mp->m_hash, chain); + return mp; +} + +static void put_mountpoint(struct mountpoint *mp) +{ + if (!--mp->m_count) { + struct dentry *dentry = mp->m_dentry; + spin_lock(&dentry->d_lock); + dentry->d_flags &= ~DCACHE_MOUNTED; + spin_unlock(&dentry->d_lock); + list_del(&mp->m_hash); + kfree(mp); + } +} + static inline int check_mnt(struct mount *mnt) { return mnt->mnt_ns == current->nsproxy->mnt_ns; @@ -632,27 +678,6 @@ static void __touch_mnt_namespace(struct mnt_namespace *ns) } } -/* - * Clear dentry's mounted state if it has no remaining mounts. - * vfsmount_lock must be held for write. - */ -static void dentry_reset_mounted(struct dentry *dentry) -{ - unsigned u; - - for (u = 0; u < HASH_SIZE; u++) { - struct mount *p; - - list_for_each_entry(p, &mount_hashtable[u], mnt_hash) { - if (p->mnt_mountpoint == dentry) - return; - } - } - spin_lock(&dentry->d_lock); - dentry->d_flags &= ~DCACHE_MOUNTED; - spin_unlock(&dentry->d_lock); -} - /* * vfsmount lock must be held for write */ @@ -664,32 +689,35 @@ static void detach_mnt(struct mount *mnt, struct path *old_path) mnt->mnt_mountpoint = mnt->mnt.mnt_root; list_del_init(&mnt->mnt_child); list_del_init(&mnt->mnt_hash); - dentry_reset_mounted(old_path->dentry); + put_mountpoint(mnt->mnt_mp); + mnt->mnt_mp = NULL; } /* * vfsmount lock must be held for write */ -void mnt_set_mountpoint(struct mount *mnt, struct dentry *dentry, +void mnt_set_mountpoint(struct mount *mnt, + struct mountpoint *mp, struct mount *child_mnt) { + mp->m_count++; mnt_add_count(mnt, 1); /* essentially, that's mntget */ - child_mnt->mnt_mountpoint = dget(dentry); + child_mnt->mnt_mountpoint = dget(mp->m_dentry); child_mnt->mnt_parent = mnt; - spin_lock(&dentry->d_lock); - dentry->d_flags |= DCACHE_MOUNTED; - spin_unlock(&dentry->d_lock); + child_mnt->mnt_mp = mp; } /* * vfsmount lock must be held for write */ -static void attach_mnt(struct mount *mnt, struct path *path) +static void attach_mnt(struct mount *mnt, + struct mount *parent, + struct mountpoint *mp) { - mnt_set_mountpoint(real_mount(path->mnt), path->dentry, mnt); + mnt_set_mountpoint(parent, mp, mnt); list_add_tail(&mnt->mnt_hash, mount_hashtable + - hash(path->mnt, path->dentry)); - list_add_tail(&mnt->mnt_child, &real_mount(path->mnt)->mnt_mounts); + hash(&parent->mnt, mp->m_dentry)); + list_add_tail(&mnt->mnt_child, &parent->mnt_mounts); } /* @@ -1138,7 +1166,8 @@ void umount_tree(struct mount *mnt, int propagate, struct list_head *kill) list_del_init(&p->mnt_child); if (mnt_has_parent(p)) { p->mnt_parent->mnt_ghosts++; - dentry_reset_mounted(p->mnt_mountpoint); + put_mountpoint(p->mnt_mp); + p->mnt_mp = NULL; } change_mnt_propagation(p, MS_PRIVATE); } @@ -1323,8 +1352,7 @@ static bool mnt_ns_loop(struct path *path) struct mount *copy_tree(struct mount *mnt, struct dentry *dentry, int flag) { - struct mount *res, *p, *q, *r; - struct path path; + struct mount *res, *p, *q, *r, *parent; if (!(flag & CL_COPY_ALL) && IS_MNT_UNBINDABLE(mnt)) return ERR_PTR(-EINVAL); @@ -1351,14 +1379,13 @@ struct mount *copy_tree(struct mount *mnt, struct dentry *dentry, q = q->mnt_parent; } p = s; - path.mnt = &q->mnt; - path.dentry = p->mnt_mountpoint; + parent = q; q = clone_mnt(p, p->mnt.mnt_root, flag); if (IS_ERR(q)) goto out; br_write_lock(&vfsmount_lock); list_add_tail(&q->mnt_list, &res->mnt_list); - attach_mnt(q, &path); + attach_mnt(q, parent, p->mnt_mp); br_write_unlock(&vfsmount_lock); } } @@ -1505,11 +1532,11 @@ static int invent_group_ids(struct mount *mnt, bool recurse) * in allocations. */ static int attach_recursive_mnt(struct mount *source_mnt, - struct path *path, struct path *parent_path) + struct mount *dest_mnt, + struct mountpoint *dest_mp, + struct path *parent_path) { LIST_HEAD(tree_list); - struct mount *dest_mnt = real_mount(path->mnt); - struct dentry *dest_dentry = path->dentry; struct mount *child, *p; int err; @@ -1518,7 +1545,7 @@ static int attach_recursive_mnt(struct mount *source_mnt, if (err) goto out; } - err = propagate_mnt(dest_mnt, dest_dentry, source_mnt, &tree_list); + err = propagate_mnt(dest_mnt, dest_mp, source_mnt, &tree_list); if (err) goto out_cleanup_ids; @@ -1530,10 +1557,10 @@ static int attach_recursive_mnt(struct mount *source_mnt, } if (parent_path) { detach_mnt(source_mnt, parent_path); - attach_mnt(source_mnt, path); + attach_mnt(source_mnt, dest_mnt, dest_mp); touch_mnt_namespace(source_mnt->mnt_ns); } else { - mnt_set_mountpoint(dest_mnt, dest_dentry, source_mnt); + mnt_set_mountpoint(dest_mnt, dest_mp, source_mnt); commit_tree(source_mnt); } @@ -1552,46 +1579,53 @@ static int attach_recursive_mnt(struct mount *source_mnt, return err; } -static int lock_mount(struct path *path) +static struct mountpoint *lock_mount(struct path *path) { struct vfsmount *mnt; + struct dentry *dentry = path->dentry; retry: - mutex_lock(&path->dentry->d_inode->i_mutex); - if (unlikely(cant_mount(path->dentry))) { - mutex_unlock(&path->dentry->d_inode->i_mutex); - return -ENOENT; + mutex_lock(&dentry->d_inode->i_mutex); + if (unlikely(cant_mount(dentry))) { + mutex_unlock(&dentry->d_inode->i_mutex); + return ERR_PTR(-ENOENT); } down_write(&namespace_sem); mnt = lookup_mnt(path); - if (likely(!mnt)) - return 0; + if (likely(!mnt)) { + struct mountpoint *mp = new_mountpoint(dentry); + if (IS_ERR(mp)) { + up_write(&namespace_sem); + mutex_unlock(&dentry->d_inode->i_mutex); + return mp; + } + return mp; + } up_write(&namespace_sem); mutex_unlock(&path->dentry->d_inode->i_mutex); path_put(path); path->mnt = mnt; - path->dentry = dget(mnt->mnt_root); + dentry = path->dentry = dget(mnt->mnt_root); goto retry; } -static void unlock_mount(struct path *path) +static void unlock_mount(struct mountpoint *where) { + struct dentry *dentry = where->m_dentry; + put_mountpoint(where); up_write(&namespace_sem); - mutex_unlock(&path->dentry->d_inode->i_mutex); + mutex_unlock(&dentry->d_inode->i_mutex); } -static int graft_tree(struct mount *mnt, struct path *path) +static int graft_tree(struct mount *mnt, struct mount *p, struct mountpoint *mp) { if (mnt->mnt.mnt_sb->s_flags & MS_NOUSER) return -EINVAL; - if (S_ISDIR(path->dentry->d_inode->i_mode) != + if (S_ISDIR(mp->m_dentry->d_inode->i_mode) != S_ISDIR(mnt->mnt.mnt_root->d_inode->i_mode)) return -ENOTDIR; - if (d_unlinked(path->dentry)) - return -ENOENT; - - return attach_recursive_mnt(mnt, path, NULL); + return attach_recursive_mnt(mnt, p, mp, NULL); } /* @@ -1654,7 +1688,8 @@ static int do_loopback(struct path *path, const char *old_name, { LIST_HEAD(umount_list); struct path old_path; - struct mount *mnt = NULL, *old; + struct mount *mnt = NULL, *old, *parent; + struct mountpoint *mp; int err; if (!old_name || !*old_name) return -EINVAL; @@ -1666,17 +1701,19 @@ static int do_loopback(struct path *path, const char *old_name, if (mnt_ns_loop(&old_path)) goto out; - err = lock_mount(path); - if (err) + mp = lock_mount(path); + err = PTR_ERR(mp); + if (IS_ERR(mp)) goto out; old = real_mount(old_path.mnt); + parent = real_mount(path->mnt); err = -EINVAL; if (IS_MNT_UNBINDABLE(old)) goto out2; - if (!check_mnt(real_mount(path->mnt)) || !check_mnt(old)) + if (!check_mnt(parent) || !check_mnt(old)) goto out2; if (recurse) @@ -1689,14 +1726,14 @@ static int do_loopback(struct path *path, const char *old_name, goto out2; } - err = graft_tree(mnt, path); + err = graft_tree(mnt, parent, mp); if (err) { br_write_lock(&vfsmount_lock); umount_tree(mnt, 0, &umount_list); br_write_unlock(&vfsmount_lock); } out2: - unlock_mount(path); + unlock_mount(mp); release_mounts(&umount_list); out: path_put(&old_path); @@ -1779,6 +1816,7 @@ static int do_move_mount(struct path *path, const char *old_name) struct path old_path, parent_path; struct mount *p; struct mount *old; + struct mountpoint *mp; int err; if (!old_name || !*old_name) return -EINVAL; @@ -1786,8 +1824,9 @@ static int do_move_mount(struct path *path, const char *old_name) if (err) return err; - err = lock_mount(path); - if (err < 0) + mp = lock_mount(path); + err = PTR_ERR(mp); + if (IS_ERR(mp)) goto out; old = real_mount(old_path.mnt); @@ -1797,9 +1836,6 @@ static int do_move_mount(struct path *path, const char *old_name) if (!check_mnt(p) || !check_mnt(old)) goto out1; - if (d_unlinked(path->dentry)) - goto out1; - err = -EINVAL; if (old_path.dentry != old_path.mnt->mnt_root) goto out1; @@ -1826,7 +1862,7 @@ static int do_move_mount(struct path *path, const char *old_name) if (p == old) goto out1; - err = attach_recursive_mnt(old, path, &parent_path); + err = attach_recursive_mnt(old, real_mount(path->mnt), mp, &parent_path); if (err) goto out1; @@ -1834,7 +1870,7 @@ static int do_move_mount(struct path *path, const char *old_name) * automatically */ list_del_init(&old->mnt_expire); out1: - unlock_mount(path); + unlock_mount(mp); out: if (!err) path_put(&parent_path); @@ -1870,21 +1906,24 @@ static struct vfsmount *fs_set_subtype(struct vfsmount *mnt, const char *fstype) */ static int do_add_mount(struct mount *newmnt, struct path *path, int mnt_flags) { + struct mountpoint *mp; + struct mount *parent; int err; mnt_flags &= ~(MNT_SHARED | MNT_WRITE_HOLD | MNT_INTERNAL); - err = lock_mount(path); - if (err) - return err; + mp = lock_mount(path); + if (IS_ERR(mp)) + return PTR_ERR(mp); + parent = real_mount(path->mnt); err = -EINVAL; - if (unlikely(!check_mnt(real_mount(path->mnt)))) { + if (unlikely(!check_mnt(parent))) { /* that's acceptable only for automounts done in private ns */ if (!(mnt_flags & MNT_SHRINKABLE)) goto unlock; /* ... and for those we'd better have mountpoint still alive */ - if (!real_mount(path->mnt)->mnt_ns) + if (!parent->mnt_ns) goto unlock; } @@ -1899,10 +1938,10 @@ static int do_add_mount(struct mount *newmnt, struct path *path, int mnt_flags) goto unlock; newmnt->mnt.mnt_flags = mnt_flags; - err = graft_tree(newmnt, path); + err = graft_tree(newmnt, parent, mp); unlock: - unlock_mount(path); + unlock_mount(mp); return err; } @@ -2543,7 +2582,8 @@ SYSCALL_DEFINE2(pivot_root, const char __user *, new_root, const char __user *, put_old) { struct path new, old, parent_path, root_parent, root; - struct mount *new_mnt, *root_mnt; + struct mount *new_mnt, *root_mnt, *old_mnt; + struct mountpoint *old_mp, *root_mp; int error; if (!may_mount()) @@ -2562,14 +2602,16 @@ SYSCALL_DEFINE2(pivot_root, const char __user *, new_root, goto out2; get_fs_root(current->fs, &root); - error = lock_mount(&old); - if (error) + old_mp = lock_mount(&old); + error = PTR_ERR(old_mp); + if (IS_ERR(old_mp)) goto out3; error = -EINVAL; new_mnt = real_mount(new.mnt); root_mnt = real_mount(root.mnt); - if (IS_MNT_SHARED(real_mount(old.mnt)) || + old_mnt = real_mount(old.mnt); + if (IS_MNT_SHARED(old_mnt) || IS_MNT_SHARED(new_mnt->mnt_parent) || IS_MNT_SHARED(root_mnt->mnt_parent)) goto out4; @@ -2578,37 +2620,37 @@ SYSCALL_DEFINE2(pivot_root, const char __user *, new_root, error = -ENOENT; if (d_unlinked(new.dentry)) goto out4; - if (d_unlinked(old.dentry)) - goto out4; error = -EBUSY; - if (new.mnt == root.mnt || - old.mnt == root.mnt) + if (new_mnt == root_mnt || old_mnt == root_mnt) goto out4; /* loop, on the same file system */ error = -EINVAL; if (root.mnt->mnt_root != root.dentry) goto out4; /* not a mountpoint */ if (!mnt_has_parent(root_mnt)) goto out4; /* not attached */ + root_mp = root_mnt->mnt_mp; if (new.mnt->mnt_root != new.dentry) goto out4; /* not a mountpoint */ if (!mnt_has_parent(new_mnt)) goto out4; /* not attached */ /* make sure we can reach put_old from new_root */ - if (!is_path_reachable(real_mount(old.mnt), old.dentry, &new)) + if (!is_path_reachable(old_mnt, old.dentry, &new)) goto out4; + root_mp->m_count++; /* pin it so it won't go away */ br_write_lock(&vfsmount_lock); detach_mnt(new_mnt, &parent_path); detach_mnt(root_mnt, &root_parent); /* mount old root on put_old */ - attach_mnt(root_mnt, &old); + attach_mnt(root_mnt, old_mnt, old_mp); /* mount new_root on / */ - attach_mnt(new_mnt, &root_parent); + attach_mnt(new_mnt, real_mount(root_parent.mnt), root_mp); touch_mnt_namespace(current->nsproxy->mnt_ns); br_write_unlock(&vfsmount_lock); chroot_fs_refs(&root, &new); + put_mountpoint(root_mp); error = 0; out4: - unlock_mount(&old); + unlock_mount(old_mp); if (!error) { path_put(&root_parent); path_put(&parent_path); @@ -2663,14 +2705,17 @@ void __init mnt_init(void) 0, SLAB_HWCACHE_ALIGN | SLAB_PANIC, NULL); mount_hashtable = (struct list_head *)__get_free_page(GFP_ATOMIC); + mountpoint_hashtable = (struct list_head *)__get_free_page(GFP_ATOMIC); - if (!mount_hashtable) + if (!mount_hashtable || !mountpoint_hashtable) panic("Failed to allocate mount hash table\n"); printk(KERN_INFO "Mount-cache hash table entries: %lu\n", HASH_SIZE); for (u = 0; u < HASH_SIZE; u++) INIT_LIST_HEAD(&mount_hashtable[u]); + for (u = 0; u < HASH_SIZE; u++) + INIT_LIST_HEAD(&mountpoint_hashtable[u]); br_lock_init(&vfsmount_lock); diff --git a/fs/pnode.c b/fs/pnode.c index 3e000a51ac0d..98e0d3a23fac 100644 --- a/fs/pnode.c +++ b/fs/pnode.c @@ -217,7 +217,7 @@ static struct mount *get_source(struct mount *dest, * @source_mnt: source mount. * @tree_list : list of heads of trees to be attached. */ -int propagate_mnt(struct mount *dest_mnt, struct dentry *dest_dentry, +int propagate_mnt(struct mount *dest_mnt, struct mountpoint *dest_mp, struct mount *source_mnt, struct list_head *tree_list) { struct mount *m, *child; @@ -244,8 +244,8 @@ int propagate_mnt(struct mount *dest_mnt, struct dentry *dest_dentry, goto out; } - if (is_subdir(dest_dentry, m->mnt.mnt_root)) { - mnt_set_mountpoint(m, dest_dentry, child); + if (is_subdir(dest_mp->m_dentry, m->mnt.mnt_root)) { + mnt_set_mountpoint(m, dest_mp, child); list_add_tail(&child->mnt_hash, tree_list); } else { /* diff --git a/fs/pnode.h b/fs/pnode.h index 19b853a3445c..f4357d3a0a44 100644 --- a/fs/pnode.h +++ b/fs/pnode.h @@ -31,14 +31,14 @@ static inline void set_mnt_shared(struct mount *mnt) } void change_mnt_propagation(struct mount *, int); -int propagate_mnt(struct mount *, struct dentry *, struct mount *, +int propagate_mnt(struct mount *, struct mountpoint *, struct mount *, struct list_head *); int propagate_umount(struct list_head *); int propagate_mount_busy(struct mount *, int); void mnt_release_group_id(struct mount *); int get_dominating_id(struct mount *mnt, const struct path *root); unsigned int mnt_get_count(struct mount *mnt); -void mnt_set_mountpoint(struct mount *, struct dentry *, +void mnt_set_mountpoint(struct mount *, struct mountpoint *, struct mount *); void release_mounts(struct list_head *); void umount_tree(struct mount *, int, struct list_head *); From e3197d83d6f5b9bd0e57a05592437ffa459ee106 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sat, 16 Mar 2013 14:35:16 -0400 Subject: [PATCH 003/204] saner umount_tree()/release_mounts(), part 1 global list of release_mounts() fodder, protected by namespace_sem; eventually, all umount_tree() callers will use it as kill list. Helper picking the contents of that list, releasing namespace_sem and doing release_mounts() on what it got. Signed-off-by: Al Viro --- fs/namespace.c | 17 +++++++++++++---- 1 file changed, 13 insertions(+), 4 deletions(-) diff --git a/fs/namespace.c b/fs/namespace.c index d7bb5a55cf36..0d91711a3160 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -1119,6 +1119,8 @@ int may_umount(struct vfsmount *mnt) EXPORT_SYMBOL(may_umount); +static LIST_HEAD(unmounted); /* protected by namespace_sem */ + void release_mounts(struct list_head *head) { struct mount *mnt; @@ -1143,6 +1145,14 @@ void release_mounts(struct list_head *head) } } +static void namespace_unlock(void) +{ + LIST_HEAD(head); + list_splice_init(&unmounted, &head); + up_write(&namespace_sem); + release_mounts(&head); +} + /* * vfsmount lock must be held for write * namespace_sem must be held for write @@ -1252,17 +1262,16 @@ static int do_umount(struct mount *mnt, int flags) event++; if (!(flags & MNT_DETACH)) - shrink_submounts(mnt, &umount_list); + shrink_submounts(mnt, &unmounted); retval = -EBUSY; if (flags & MNT_DETACH || !propagate_mount_busy(mnt, 2)) { if (!list_empty(&mnt->mnt_list)) - umount_tree(mnt, 1, &umount_list); + umount_tree(mnt, 1, &unmounted); retval = 0; } br_write_unlock(&vfsmount_lock); - up_write(&namespace_sem); - release_mounts(&umount_list); + namespace_unlock(); return retval; } From b54b9be7824d84158cd90305820e2c3914f74ad9 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sat, 16 Mar 2013 14:39:34 -0400 Subject: [PATCH 004/204] get rid of the second argument of shrink_submounts() ... it's always &unmounted. Signed-off-by: Al Viro --- fs/namespace.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/fs/namespace.c b/fs/namespace.c index 0d91711a3160..c04afaf0e3dc 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -1184,7 +1184,7 @@ void umount_tree(struct mount *mnt, int propagate, struct list_head *kill) list_splice(&tmp_list, kill); } -static void shrink_submounts(struct mount *mnt, struct list_head *umounts); +static void shrink_submounts(struct mount *mnt); static int do_umount(struct mount *mnt, int flags) { @@ -1262,7 +1262,7 @@ static int do_umount(struct mount *mnt, int flags) event++; if (!(flags & MNT_DETACH)) - shrink_submounts(mnt, &unmounted); + shrink_submounts(mnt); retval = -EBUSY; if (flags & MNT_DETACH || !propagate_mount_busy(mnt, 2)) { @@ -2145,7 +2145,7 @@ static int select_submounts(struct mount *parent, struct list_head *graveyard) * * vfsmount_lock must be held for write */ -static void shrink_submounts(struct mount *mnt, struct list_head *umounts) +static void shrink_submounts(struct mount *mnt) { LIST_HEAD(graveyard); struct mount *m; @@ -2156,7 +2156,7 @@ static void shrink_submounts(struct mount *mnt, struct list_head *umounts) m = list_first_entry(&graveyard, struct mount, mnt_expire); touch_mnt_namespace(m->mnt_ns); - umount_tree(m, 1, umounts); + umount_tree(m, 1, &unmounted); } } } From 3ab6abee59ac9ca84cc4a1e31224f1dccd44394c Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sat, 16 Mar 2013 14:42:19 -0400 Subject: [PATCH 005/204] more conversions to namespace_unlock() Signed-off-by: Al Viro --- fs/namespace.c | 20 ++++++-------------- 1 file changed, 6 insertions(+), 14 deletions(-) diff --git a/fs/namespace.c b/fs/namespace.c index c04afaf0e3dc..7563270a43ab 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -1426,13 +1426,11 @@ struct vfsmount *collect_mounts(struct path *path) void drop_collected_mounts(struct vfsmount *mnt) { - LIST_HEAD(umount_list); down_write(&namespace_sem); br_write_lock(&vfsmount_lock); - umount_tree(real_mount(mnt), 0, &umount_list); + umount_tree(real_mount(mnt), 0, &unmounted); br_write_unlock(&vfsmount_lock); - up_write(&namespace_sem); - release_mounts(&umount_list); + namespace_unlock(); } int iterate_mounts(int (*f)(struct vfsmount *, void *), void *arg, @@ -2060,7 +2058,6 @@ void mark_mounts_for_expiry(struct list_head *mounts) { struct mount *mnt, *next; LIST_HEAD(graveyard); - LIST_HEAD(umounts); if (list_empty(mounts)) return; @@ -2083,12 +2080,10 @@ void mark_mounts_for_expiry(struct list_head *mounts) while (!list_empty(&graveyard)) { mnt = list_first_entry(&graveyard, struct mount, mnt_expire); touch_mnt_namespace(mnt->mnt_ns); - umount_tree(mnt, 1, &umounts); + umount_tree(mnt, 1, &unmounted); } br_write_unlock(&vfsmount_lock); - up_write(&namespace_sem); - - release_mounts(&umounts); + namespace_unlock(); } EXPORT_SYMBOL_GPL(mark_mounts_for_expiry); @@ -2741,16 +2736,13 @@ void __init mnt_init(void) void put_mnt_ns(struct mnt_namespace *ns) { - LIST_HEAD(umount_list); - if (!atomic_dec_and_test(&ns->count)) return; down_write(&namespace_sem); br_write_lock(&vfsmount_lock); - umount_tree(ns->root, 0, &umount_list); + umount_tree(ns->root, 0, &unmounted); br_write_unlock(&vfsmount_lock); - up_write(&namespace_sem); - release_mounts(&umount_list); + namespace_unlock(); free_mnt_ns(ns); } From 328e6d9014636afc2b3c979403b36faadb412657 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sat, 16 Mar 2013 14:49:45 -0400 Subject: [PATCH 006/204] switch unlock_mount() to namespace_unlock(), convert all umount_tree() callers which allows to kill the last argument of umount_tree() and make release_mounts() static. Signed-off-by: Al Viro --- fs/namespace.c | 33 ++++++++++++++------------------- fs/pnode.c | 4 +--- fs/pnode.h | 3 +-- 3 files changed, 16 insertions(+), 24 deletions(-) diff --git a/fs/namespace.c b/fs/namespace.c index 7563270a43ab..fa93d54d21e8 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -1121,7 +1121,7 @@ EXPORT_SYMBOL(may_umount); static LIST_HEAD(unmounted); /* protected by namespace_sem */ -void release_mounts(struct list_head *head) +static void release_mounts(struct list_head *head) { struct mount *mnt; while (!list_empty(head)) { @@ -1157,7 +1157,7 @@ static void namespace_unlock(void) * vfsmount lock must be held for write * namespace_sem must be held for write */ -void umount_tree(struct mount *mnt, int propagate, struct list_head *kill) +void umount_tree(struct mount *mnt, int propagate) { LIST_HEAD(tmp_list); struct mount *p; @@ -1181,7 +1181,7 @@ void umount_tree(struct mount *mnt, int propagate, struct list_head *kill) } change_mnt_propagation(p, MS_PRIVATE); } - list_splice(&tmp_list, kill); + list_splice(&tmp_list, &unmounted); } static void shrink_submounts(struct mount *mnt); @@ -1190,7 +1190,6 @@ static int do_umount(struct mount *mnt, int flags) { struct super_block *sb = mnt->mnt.mnt_sb; int retval; - LIST_HEAD(umount_list); retval = security_sb_umount(&mnt->mnt, flags); if (retval) @@ -1267,7 +1266,7 @@ static int do_umount(struct mount *mnt, int flags) retval = -EBUSY; if (flags & MNT_DETACH || !propagate_mount_busy(mnt, 2)) { if (!list_empty(&mnt->mnt_list)) - umount_tree(mnt, 1, &unmounted); + umount_tree(mnt, 1); retval = 0; } br_write_unlock(&vfsmount_lock); @@ -1401,11 +1400,9 @@ struct mount *copy_tree(struct mount *mnt, struct dentry *dentry, return res; out: if (res) { - LIST_HEAD(umount_list); br_write_lock(&vfsmount_lock); - umount_tree(res, 0, &umount_list); + umount_tree(res, 0); br_write_unlock(&vfsmount_lock); - release_mounts(&umount_list); } return q; } @@ -1418,7 +1415,7 @@ struct vfsmount *collect_mounts(struct path *path) down_write(&namespace_sem); tree = copy_tree(real_mount(path->mnt), path->dentry, CL_COPY_ALL | CL_PRIVATE); - up_write(&namespace_sem); + namespace_unlock(); if (IS_ERR(tree)) return NULL; return &tree->mnt; @@ -1428,7 +1425,7 @@ void drop_collected_mounts(struct vfsmount *mnt) { down_write(&namespace_sem); br_write_lock(&vfsmount_lock); - umount_tree(real_mount(mnt), 0, &unmounted); + umount_tree(real_mount(mnt), 0); br_write_unlock(&vfsmount_lock); namespace_unlock(); } @@ -1619,7 +1616,7 @@ static void unlock_mount(struct mountpoint *where) { struct dentry *dentry = where->m_dentry; put_mountpoint(where); - up_write(&namespace_sem); + namespace_unlock(); mutex_unlock(&dentry->d_inode->i_mutex); } @@ -1693,7 +1690,6 @@ static int do_change_type(struct path *path, int flag) static int do_loopback(struct path *path, const char *old_name, int recurse) { - LIST_HEAD(umount_list); struct path old_path; struct mount *mnt = NULL, *old, *parent; struct mountpoint *mp; @@ -1736,12 +1732,11 @@ static int do_loopback(struct path *path, const char *old_name, err = graft_tree(mnt, parent, mp); if (err) { br_write_lock(&vfsmount_lock); - umount_tree(mnt, 0, &umount_list); + umount_tree(mnt, 0); br_write_unlock(&vfsmount_lock); } out2: unlock_mount(mp); - release_mounts(&umount_list); out: path_put(&old_path); return err; @@ -2080,7 +2075,7 @@ void mark_mounts_for_expiry(struct list_head *mounts) while (!list_empty(&graveyard)) { mnt = list_first_entry(&graveyard, struct mount, mnt_expire); touch_mnt_namespace(mnt->mnt_ns); - umount_tree(mnt, 1, &unmounted); + umount_tree(mnt, 1); } br_write_unlock(&vfsmount_lock); namespace_unlock(); @@ -2151,7 +2146,7 @@ static void shrink_submounts(struct mount *mnt) m = list_first_entry(&graveyard, struct mount, mnt_expire); touch_mnt_namespace(m->mnt_ns); - umount_tree(m, 1, &unmounted); + umount_tree(m, 1); } } } @@ -2385,7 +2380,7 @@ static struct mnt_namespace *dup_mnt_ns(struct mnt_namespace *mnt_ns, copy_flags |= CL_SHARED_TO_SLAVE; new = copy_tree(old, old->mnt.mnt_root, copy_flags); if (IS_ERR(new)) { - up_write(&namespace_sem); + namespace_unlock(); free_mnt_ns(new_ns); return ERR_CAST(new); } @@ -2416,7 +2411,7 @@ static struct mnt_namespace *dup_mnt_ns(struct mnt_namespace *mnt_ns, p = next_mnt(p, old); q = next_mnt(q, new); } - up_write(&namespace_sem); + namespace_unlock(); if (rootmnt) mntput(rootmnt); @@ -2740,7 +2735,7 @@ void put_mnt_ns(struct mnt_namespace *ns) return; down_write(&namespace_sem); br_write_lock(&vfsmount_lock); - umount_tree(ns->root, 0, &unmounted); + umount_tree(ns->root, 0); br_write_unlock(&vfsmount_lock); namespace_unlock(); free_mnt_ns(ns); diff --git a/fs/pnode.c b/fs/pnode.c index 98e0d3a23fac..43617258fa6a 100644 --- a/fs/pnode.c +++ b/fs/pnode.c @@ -225,7 +225,6 @@ int propagate_mnt(struct mount *dest_mnt, struct mountpoint *dest_mp, struct mount *prev_dest_mnt = dest_mnt; struct mount *prev_src_mnt = source_mnt; LIST_HEAD(tmp_list); - LIST_HEAD(umount_list); for (m = propagation_next(dest_mnt, dest_mnt); m; m = propagation_next(m, dest_mnt)) { @@ -261,10 +260,9 @@ int propagate_mnt(struct mount *dest_mnt, struct mountpoint *dest_mp, br_write_lock(&vfsmount_lock); while (!list_empty(&tmp_list)) { child = list_first_entry(&tmp_list, struct mount, mnt_hash); - umount_tree(child, 0, &umount_list); + umount_tree(child, 0); } br_write_unlock(&vfsmount_lock); - release_mounts(&umount_list); return ret; } diff --git a/fs/pnode.h b/fs/pnode.h index f4357d3a0a44..9eb00ee65bbe 100644 --- a/fs/pnode.h +++ b/fs/pnode.h @@ -40,8 +40,7 @@ int get_dominating_id(struct mount *mnt, const struct path *root); unsigned int mnt_get_count(struct mount *mnt); void mnt_set_mountpoint(struct mount *, struct mountpoint *, struct mount *); -void release_mounts(struct list_head *); -void umount_tree(struct mount *, int, struct list_head *); +void umount_tree(struct mount *, int); struct mount *copy_tree(struct mount *, struct dentry *, int); bool is_path_reachable(struct mount *, struct dentry *, const struct path *root); From 97216be09efd41414725068212e3af0f05cde11a Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sat, 16 Mar 2013 15:12:40 -0400 Subject: [PATCH 007/204] fold release_mounts() into namespace_unlock() ... and provide namespace_lock() as a trivial wrapper; switch to those two consistently. Result is patterned after rtnl_lock/rtnl_unlock pair. Signed-off-by: Al Viro --- fs/namespace.c | 53 ++++++++++++++++++++++++++++---------------------- 1 file changed, 30 insertions(+), 23 deletions(-) diff --git a/fs/namespace.c b/fs/namespace.c index fa93d54d21e8..ed0708f2415f 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -1121,11 +1121,21 @@ EXPORT_SYMBOL(may_umount); static LIST_HEAD(unmounted); /* protected by namespace_sem */ -static void release_mounts(struct list_head *head) +static void namespace_unlock(void) { struct mount *mnt; - while (!list_empty(head)) { - mnt = list_first_entry(head, struct mount, mnt_hash); + LIST_HEAD(head); + + if (likely(list_empty(&unmounted))) { + up_write(&namespace_sem); + return; + } + + list_splice_init(&unmounted, &head); + up_write(&namespace_sem); + + while (!list_empty(&head)) { + mnt = list_first_entry(&head, struct mount, mnt_hash); list_del_init(&mnt->mnt_hash); if (mnt_has_parent(mnt)) { struct dentry *dentry; @@ -1145,12 +1155,9 @@ static void release_mounts(struct list_head *head) } } -static void namespace_unlock(void) +static inline void namespace_lock(void) { - LIST_HEAD(head); - list_splice_init(&unmounted, &head); - up_write(&namespace_sem); - release_mounts(&head); + down_write(&namespace_sem); } /* @@ -1256,7 +1263,7 @@ static int do_umount(struct mount *mnt, int flags) return retval; } - down_write(&namespace_sem); + namespace_lock(); br_write_lock(&vfsmount_lock); event++; @@ -1412,7 +1419,7 @@ struct mount *copy_tree(struct mount *mnt, struct dentry *dentry, struct vfsmount *collect_mounts(struct path *path) { struct mount *tree; - down_write(&namespace_sem); + namespace_lock(); tree = copy_tree(real_mount(path->mnt), path->dentry, CL_COPY_ALL | CL_PRIVATE); namespace_unlock(); @@ -1423,7 +1430,7 @@ struct vfsmount *collect_mounts(struct path *path) void drop_collected_mounts(struct vfsmount *mnt) { - down_write(&namespace_sem); + namespace_lock(); br_write_lock(&vfsmount_lock); umount_tree(real_mount(mnt), 0); br_write_unlock(&vfsmount_lock); @@ -1593,18 +1600,18 @@ static struct mountpoint *lock_mount(struct path *path) mutex_unlock(&dentry->d_inode->i_mutex); return ERR_PTR(-ENOENT); } - down_write(&namespace_sem); + namespace_lock(); mnt = lookup_mnt(path); if (likely(!mnt)) { struct mountpoint *mp = new_mountpoint(dentry); if (IS_ERR(mp)) { - up_write(&namespace_sem); + namespace_unlock(); mutex_unlock(&dentry->d_inode->i_mutex); return mp; } return mp; } - up_write(&namespace_sem); + namespace_unlock(); mutex_unlock(&path->dentry->d_inode->i_mutex); path_put(path); path->mnt = mnt; @@ -1667,7 +1674,7 @@ static int do_change_type(struct path *path, int flag) if (!type) return -EINVAL; - down_write(&namespace_sem); + namespace_lock(); if (type == MS_SHARED) { err = invent_group_ids(mnt, recurse); if (err) @@ -1680,7 +1687,7 @@ static int do_change_type(struct path *path, int flag) br_write_unlock(&vfsmount_lock); out_unlock: - up_write(&namespace_sem); + namespace_unlock(); return err; } @@ -2016,11 +2023,11 @@ int finish_automount(struct vfsmount *m, struct path *path) fail: /* remove m from any expiration list it may be on */ if (!list_empty(&mnt->mnt_expire)) { - down_write(&namespace_sem); + namespace_lock(); br_write_lock(&vfsmount_lock); list_del_init(&mnt->mnt_expire); br_write_unlock(&vfsmount_lock); - up_write(&namespace_sem); + namespace_unlock(); } mntput(m); mntput(m); @@ -2034,13 +2041,13 @@ int finish_automount(struct vfsmount *m, struct path *path) */ void mnt_set_expiry(struct vfsmount *mnt, struct list_head *expiry_list) { - down_write(&namespace_sem); + namespace_lock(); br_write_lock(&vfsmount_lock); list_add_tail(&real_mount(mnt)->mnt_expire, expiry_list); br_write_unlock(&vfsmount_lock); - up_write(&namespace_sem); + namespace_unlock(); } EXPORT_SYMBOL(mnt_set_expiry); @@ -2057,7 +2064,7 @@ void mark_mounts_for_expiry(struct list_head *mounts) if (list_empty(mounts)) return; - down_write(&namespace_sem); + namespace_lock(); br_write_lock(&vfsmount_lock); /* extract from the expiration list every vfsmount that matches the @@ -2373,7 +2380,7 @@ static struct mnt_namespace *dup_mnt_ns(struct mnt_namespace *mnt_ns, if (IS_ERR(new_ns)) return new_ns; - down_write(&namespace_sem); + namespace_lock(); /* First pass: copy the tree topology */ copy_flags = CL_COPY_ALL | CL_EXPIRE; if (user_ns != mnt_ns->user_ns) @@ -2733,7 +2740,7 @@ void put_mnt_ns(struct mnt_namespace *ns) { if (!atomic_dec_and_test(&ns->count)) return; - down_write(&namespace_sem); + namespace_lock(); br_write_lock(&vfsmount_lock); umount_tree(ns->root, 0); br_write_unlock(&vfsmount_lock); From d5daaaff24026d59130e97a406f2999118bafdc3 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Tue, 19 Mar 2013 19:46:45 -0400 Subject: [PATCH 008/204] reiserfs: don't wank with EFBIG before calling do_sync_write() look for file_capable() in there... Signed-off-by: Al Viro --- fs/reiserfs/file.c | 61 +--------------------------------------------- 1 file changed, 1 insertion(+), 60 deletions(-) diff --git a/fs/reiserfs/file.c b/fs/reiserfs/file.c index 6165bd4784f6..dcaafcfc23b0 100644 --- a/fs/reiserfs/file.c +++ b/fs/reiserfs/file.c @@ -234,68 +234,9 @@ int reiserfs_commit_page(struct inode *inode, struct page *page, return ret; } -/* Write @count bytes at position @ppos in a file indicated by @file - from the buffer @buf. - - generic_file_write() is only appropriate for filesystems that are not seeking to optimize performance and want - something simple that works. It is not for serious use by general purpose filesystems, excepting the one that it was - written for (ext2/3). This is for several reasons: - - * It has no understanding of any filesystem specific optimizations. - - * It enters the filesystem repeatedly for each page that is written. - - * It depends on reiserfs_get_block() function which if implemented by reiserfs performs costly search_by_key - * operation for each page it is supplied with. By contrast reiserfs_file_write() feeds as much as possible at a time - * to reiserfs which allows for fewer tree traversals. - - * Each indirect pointer insertion takes a lot of cpu, because it involves memory moves inside of blocks. - - * Asking the block allocation code for blocks one at a time is slightly less efficient. - - All of these reasons for not using only generic file write were understood back when reiserfs was first miscoded to - use it, but we were in a hurry to make code freeze, and so it couldn't be revised then. This new code should make - things right finally. - - Future Features: providing search_by_key with hints. - -*/ -static ssize_t reiserfs_file_write(struct file *file, /* the file we are going to write into */ - const char __user * buf, /* pointer to user supplied data - (in userspace) */ - size_t count, /* amount of bytes to write */ - loff_t * ppos /* pointer to position in file that we start writing at. Should be updated to - * new current position before returning. */ - ) -{ - struct inode *inode = file_inode(file); // Inode of the file that we are writing to. - /* To simplify coding at this time, we store - locked pages in array for now */ - struct reiserfs_transaction_handle th; - th.t_trans_id = 0; - - /* If a filesystem is converted from 3.5 to 3.6, we'll have v3.5 items - * lying around (most of the disk, in fact). Despite the filesystem - * now being a v3.6 format, the old items still can't support large - * file sizes. Catch this case here, as the rest of the VFS layer is - * oblivious to the different limitations between old and new items. - * reiserfs_setattr catches this for truncates. This chunk is lifted - * from generic_write_checks. */ - if (get_inode_item_key_version (inode) == KEY_FORMAT_3_5 && - *ppos + count > MAX_NON_LFS) { - if (*ppos >= MAX_NON_LFS) { - return -EFBIG; - } - if (count > MAX_NON_LFS - (unsigned long)*ppos) - count = MAX_NON_LFS - (unsigned long)*ppos; - } - - return do_sync_write(file, buf, count, ppos); -} - const struct file_operations reiserfs_file_operations = { .read = do_sync_read, - .write = reiserfs_file_write, + .write = do_sync_write, .unlocked_ioctl = reiserfs_ioctl, #ifdef CONFIG_COMPAT .compat_ioctl = reiserfs_compat_ioctl, From 5f2e354f5212a49fc639c25de2581cc8ae90d11b Mon Sep 17 00:00:00 2001 From: Al Viro Date: Tue, 19 Mar 2013 20:35:00 -0400 Subject: [PATCH 009/204] hpfs: move setting hpfs-private i_dirty to ->write_end() ... so that writev(2) doesn't miss it. Get rid of hpfs_file_write(). Signed-off-by: Al Viro --- fs/hpfs/file.c | 36 ++++++++++++++++++++---------------- 1 file changed, 20 insertions(+), 16 deletions(-) diff --git a/fs/hpfs/file.c b/fs/hpfs/file.c index 9f9dbeceeee7..3027f4dbbab5 100644 --- a/fs/hpfs/file.c +++ b/fs/hpfs/file.c @@ -131,6 +131,24 @@ static int hpfs_write_begin(struct file *file, struct address_space *mapping, return ret; } +static int hpfs_write_end(struct file *file, struct address_space *mapping, + loff_t pos, unsigned len, unsigned copied, + struct page *pagep, void *fsdata) +{ + struct inode *inode = mapping->host; + int err; + err = generic_write_end(file, mapping, pos, len, copied, pagep, fsdata); + if (err < len) + hpfs_write_failed(mapping, pos + len); + if (!(err < 0)) { + /* make sure we write it on close, if not earlier */ + hpfs_lock(inode->i_sb); + hpfs_i(inode)->i_dirty = 1; + hpfs_unlock(inode->i_sb); + } + return err; +} + static sector_t _hpfs_bmap(struct address_space *mapping, sector_t block) { return generic_block_bmap(mapping,block,hpfs_get_block); @@ -140,30 +158,16 @@ const struct address_space_operations hpfs_aops = { .readpage = hpfs_readpage, .writepage = hpfs_writepage, .write_begin = hpfs_write_begin, - .write_end = generic_write_end, + .write_end = hpfs_write_end, .bmap = _hpfs_bmap }; -static ssize_t hpfs_file_write(struct file *file, const char __user *buf, - size_t count, loff_t *ppos) -{ - ssize_t retval; - - retval = do_sync_write(file, buf, count, ppos); - if (retval > 0) { - hpfs_lock(file->f_path.dentry->d_sb); - hpfs_i(file_inode(file))->i_dirty = 1; - hpfs_unlock(file->f_path.dentry->d_sb); - } - return retval; -} - const struct file_operations hpfs_file_ops = { .llseek = generic_file_llseek, .read = do_sync_read, .aio_read = generic_file_aio_read, - .write = hpfs_file_write, + .write = do_sync_write, .aio_write = generic_file_aio_write, .mmap = generic_file_mmap, .release = hpfs_file_release, From 8d71db4f0890605d44815a2b2da4ca003f1bb142 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Tue, 19 Mar 2013 21:01:03 -0400 Subject: [PATCH 010/204] lift sb_start_write/sb_end_write out of ->aio_write() Signed-off-by: Al Viro --- fs/aio.c | 4 ++++ fs/btrfs/file.c | 3 --- fs/cifs/file.c | 3 --- fs/compat.c | 6 ++++-- fs/fuse/file.c | 2 -- fs/ntfs/file.c | 2 -- fs/ocfs2/file.c | 3 --- fs/read_write.c | 8 ++++++-- fs/xfs/xfs_file.c | 3 --- include/linux/fs.h | 14 ++++++++++++++ mm/filemap.c | 2 -- 11 files changed, 28 insertions(+), 22 deletions(-) diff --git a/fs/aio.c b/fs/aio.c index 3f941f2a3059..4ec28f13a92e 100644 --- a/fs/aio.c +++ b/fs/aio.c @@ -1324,6 +1324,8 @@ static ssize_t aio_rw_vect_retry(struct kiocb *iocb) if (iocb->ki_pos < 0) return -EINVAL; + if (opcode == IOCB_CMD_PWRITEV) + file_start_write(file); do { ret = rw_op(iocb, &iocb->ki_iovec[iocb->ki_cur_seg], iocb->ki_nr_segs - iocb->ki_cur_seg, @@ -1336,6 +1338,8 @@ static ssize_t aio_rw_vect_retry(struct kiocb *iocb) } while (ret > 0 && iocb->ki_left > 0 && (opcode == IOCB_CMD_PWRITEV || (!S_ISFIFO(inode->i_mode) && !S_ISSOCK(inode->i_mode)))); + if (opcode == IOCB_CMD_PWRITEV) + file_end_write(file); /* This means we must have transferred all that we could */ /* No need to retry anymore */ diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c index 5b4ea5f55b8f..254aeb72915f 100644 --- a/fs/btrfs/file.c +++ b/fs/btrfs/file.c @@ -1514,8 +1514,6 @@ static ssize_t btrfs_file_aio_write(struct kiocb *iocb, size_t count, ocount; bool sync = (file->f_flags & O_DSYNC) || IS_SYNC(file->f_mapping->host); - sb_start_write(inode->i_sb); - mutex_lock(&inode->i_mutex); err = generic_segment_checks(iov, &nr_segs, &ocount, VERIFY_READ); @@ -1617,7 +1615,6 @@ static ssize_t btrfs_file_aio_write(struct kiocb *iocb, if (sync) atomic_dec(&BTRFS_I(inode)->sync_writers); out: - sb_end_write(inode->i_sb); current->backing_dev_info = NULL; return num_written ? num_written : err; } diff --git a/fs/cifs/file.c b/fs/cifs/file.c index 7a0dd99e4507..2d4a231dd70b 100644 --- a/fs/cifs/file.c +++ b/fs/cifs/file.c @@ -2520,8 +2520,6 @@ cifs_writev(struct kiocb *iocb, const struct iovec *iov, BUG_ON(iocb->ki_pos != pos); - sb_start_write(inode->i_sb); - /* * We need to hold the sem to be sure nobody modifies lock list * with a brlock that prevents writing. @@ -2545,7 +2543,6 @@ cifs_writev(struct kiocb *iocb, const struct iovec *iov, } up_read(&cinode->lock_sem); - sb_end_write(inode->i_sb); return rc; } diff --git a/fs/compat.c b/fs/compat.c index d487985dd0ea..daa3b771d64d 100644 --- a/fs/compat.c +++ b/fs/compat.c @@ -1103,10 +1103,12 @@ static ssize_t compat_do_readv_writev(int type, struct file *file, fnv = file->f_op->aio_write; } - if (fnv) + if (fnv) { + file_start_write(file); ret = do_sync_readv_writev(file, iov, nr_segs, tot_len, pos, fnv); - else + file_end_write(file); + } else ret = do_loop_readv_writev(file, iov, nr_segs, pos, fn); out: diff --git a/fs/fuse/file.c b/fs/fuse/file.c index 34b80ba95bad..d15c6f21c17f 100644 --- a/fs/fuse/file.c +++ b/fs/fuse/file.c @@ -971,7 +971,6 @@ static ssize_t fuse_file_aio_write(struct kiocb *iocb, const struct iovec *iov, return err; count = ocount; - sb_start_write(inode->i_sb); mutex_lock(&inode->i_mutex); /* We can write back this queue in page reclaim */ @@ -1030,7 +1029,6 @@ static ssize_t fuse_file_aio_write(struct kiocb *iocb, const struct iovec *iov, out: current->backing_dev_info = NULL; mutex_unlock(&inode->i_mutex); - sb_end_write(inode->i_sb); return written ? written : err; } diff --git a/fs/ntfs/file.c b/fs/ntfs/file.c index 5b2d4f0853ac..1da4b81e6f76 100644 --- a/fs/ntfs/file.c +++ b/fs/ntfs/file.c @@ -2129,7 +2129,6 @@ static ssize_t ntfs_file_aio_write(struct kiocb *iocb, const struct iovec *iov, BUG_ON(iocb->ki_pos != pos); - sb_start_write(inode->i_sb); mutex_lock(&inode->i_mutex); ret = ntfs_file_aio_write_nolock(iocb, iov, nr_segs, &iocb->ki_pos); mutex_unlock(&inode->i_mutex); @@ -2138,7 +2137,6 @@ static ssize_t ntfs_file_aio_write(struct kiocb *iocb, const struct iovec *iov, if (err < 0) ret = err; } - sb_end_write(inode->i_sb); return ret; } diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c index 6474cb44004d..1c93e771e950 100644 --- a/fs/ocfs2/file.c +++ b/fs/ocfs2/file.c @@ -2248,8 +2248,6 @@ static ssize_t ocfs2_file_aio_write(struct kiocb *iocb, if (iocb->ki_left == 0) return 0; - sb_start_write(inode->i_sb); - appending = file->f_flags & O_APPEND ? 1 : 0; direct_io = file->f_flags & O_DIRECT ? 1 : 0; @@ -2423,7 +2421,6 @@ static ssize_t ocfs2_file_aio_write(struct kiocb *iocb, ocfs2_iocb_clear_sem_locked(iocb); mutex_unlock(&inode->i_mutex); - sb_end_write(inode->i_sb); if (written) ret = written; diff --git a/fs/read_write.c b/fs/read_write.c index f7b5a23b804b..3e1791a2cfd6 100644 --- a/fs/read_write.c +++ b/fs/read_write.c @@ -398,6 +398,7 @@ ssize_t do_sync_write(struct file *filp, const char __user *buf, size_t len, lof struct kiocb kiocb; ssize_t ret; + file_start_write(filp); init_sync_kiocb(&kiocb, filp); kiocb.ki_pos = *ppos; kiocb.ki_left = len; @@ -413,6 +414,7 @@ ssize_t do_sync_write(struct file *filp, const char __user *buf, size_t len, lof if (-EIOCBQUEUED == ret) ret = wait_on_sync_kiocb(&kiocb); *ppos = kiocb.ki_pos; + file_end_write(filp); return ret; } @@ -758,10 +760,12 @@ static ssize_t do_readv_writev(int type, struct file *file, fnv = file->f_op->aio_write; } - if (fnv) + if (fnv) { + file_start_write(file); ret = do_sync_readv_writev(file, iov, nr_segs, tot_len, pos, fnv); - else + file_end_write(file); + } else ret = do_loop_readv_writev(file, iov, nr_segs, pos, fn); out: diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c index f03bf1a456fb..3800128d2171 100644 --- a/fs/xfs/xfs_file.c +++ b/fs/xfs/xfs_file.c @@ -775,8 +775,6 @@ xfs_file_aio_write( if (ocount == 0) return 0; - sb_start_write(inode->i_sb); - if (XFS_FORCED_SHUTDOWN(ip->i_mount)) { ret = -EIO; goto out; @@ -800,7 +798,6 @@ xfs_file_aio_write( } out: - sb_end_write(inode->i_sb); return ret; } diff --git a/include/linux/fs.h b/include/linux/fs.h index 2c28271ab9d4..578a66e6ee72 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -2223,6 +2223,20 @@ static inline struct inode *file_inode(struct file *f) return f->f_inode; } +static inline void file_start_write(struct file *file) +{ + if (!S_ISREG(file_inode(file)->i_mode)) + return; + __sb_start_write(file_inode(file)->i_sb, SB_FREEZE_WRITE, true); +} + +static inline void file_end_write(struct file *file) +{ + if (!S_ISREG(file_inode(file)->i_mode)) + return; + __sb_end_write(file_inode(file)->i_sb, SB_FREEZE_WRITE); +} + /* * get_write_access() gets write permission for a file. * put_write_access() releases this write permission. diff --git a/mm/filemap.c b/mm/filemap.c index e1979fdca805..cbde8842a374 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -2528,7 +2528,6 @@ ssize_t generic_file_aio_write(struct kiocb *iocb, const struct iovec *iov, BUG_ON(iocb->ki_pos != pos); - sb_start_write(inode->i_sb); mutex_lock(&inode->i_mutex); ret = __generic_file_aio_write(iocb, iov, nr_segs, &iocb->ki_pos); mutex_unlock(&inode->i_mutex); @@ -2540,7 +2539,6 @@ ssize_t generic_file_aio_write(struct kiocb *iocb, const struct iovec *iov, if (err < 0 && ret > 0) ret = err; } - sb_end_write(inode->i_sb); return ret; } EXPORT_SYMBOL(generic_file_aio_write); From bdaec334bbe7d234ca6ddd81aa74b2938d40e6b4 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Wed, 20 Mar 2013 09:33:23 -0400 Subject: [PATCH 011/204] f2fs: use mnt_want_write_file() in ioctl Signed-off-by: Al Viro --- fs/f2fs/file.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index 958a46da19ae..db626282d424 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -590,7 +590,7 @@ long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) { unsigned int oldflags; - ret = mnt_want_write(filp->f_path.mnt); + ret = mnt_want_write_file(filp); if (ret) return ret; @@ -627,7 +627,7 @@ long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) inode->i_ctime = CURRENT_TIME; mark_inode_dirty(inode); out: - mnt_drop_write(filp->f_path.mnt); + mnt_drop_write_file(filp); return ret; } default: From 72ec35163f9f728ba1579fd80682e51e933dfa8a Mon Sep 17 00:00:00 2001 From: Al Viro Date: Wed, 20 Mar 2013 10:42:10 -0400 Subject: [PATCH 012/204] switch compat readv/writev variants to COMPAT_SYSCALL_DEFINE ... and take to fs/read_write.c Signed-off-by: Al Viro --- arch/s390/kernel/compat_wrapper.S | 16 --- arch/s390/kernel/syscalls.S | 4 +- fs/compat.c | 186 ---------------------------- fs/read_write.c | 197 +++++++++++++++++++++++++++++- fs/read_write.h | 4 - 5 files changed, 197 insertions(+), 210 deletions(-) diff --git a/arch/s390/kernel/compat_wrapper.S b/arch/s390/kernel/compat_wrapper.S index 3c98c4dc5aca..4d720a6a6b25 100644 --- a/arch/s390/kernel/compat_wrapper.S +++ b/arch/s390/kernel/compat_wrapper.S @@ -1387,22 +1387,6 @@ ENTRY(compat_sys_keyctl_wrapper) llgfr %r6,%r6 # u32 jg compat_sys_keyctl # branch to system call -ENTRY(compat_sys_preadv_wrapper) - llgfr %r2,%r2 # unsigned long - llgtr %r3,%r3 # compat_iovec * - llgfr %r4,%r4 # unsigned long - llgfr %r5,%r5 # u32 - llgfr %r6,%r6 # u32 - jg compat_sys_preadv # branch to system call - -ENTRY(compat_sys_pwritev_wrapper) - llgfr %r2,%r2 # unsigned long - llgtr %r3,%r3 # compat_iovec * - llgfr %r4,%r4 # unsigned long - llgfr %r5,%r5 # u32 - llgfr %r6,%r6 # u32 - jg compat_sys_pwritev # branch to system call - ENTRY(sys_perf_event_open_wrapper) llgtr %r2,%r2 # const struct perf_event_attr * lgfr %r3,%r3 # pid_t diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S index 630b935d1284..84e8b1a6bfcb 100644 --- a/arch/s390/kernel/syscalls.S +++ b/arch/s390/kernel/syscalls.S @@ -336,8 +336,8 @@ SYSCALL(sys_inotify_init1,sys_inotify_init1,sys_inotify_init1_wrapper) SYSCALL(sys_pipe2,sys_pipe2,sys_pipe2_wrapper) /* 325 */ SYSCALL(sys_dup3,sys_dup3,sys_dup3_wrapper) SYSCALL(sys_epoll_create1,sys_epoll_create1,sys_epoll_create1_wrapper) -SYSCALL(sys_preadv,sys_preadv,compat_sys_preadv_wrapper) -SYSCALL(sys_pwritev,sys_pwritev,compat_sys_pwritev_wrapper) +SYSCALL(sys_preadv,sys_preadv,compat_sys_preadv) +SYSCALL(sys_pwritev,sys_pwritev,compat_sys_pwritev) SYSCALL(sys_rt_tgsigqueueinfo,sys_rt_tgsigqueueinfo,compat_sys_rt_tgsigqueueinfo) /* 330 */ SYSCALL(sys_perf_event_open,sys_perf_event_open,sys_perf_event_open_wrapper) SYSCALL(sys_fanotify_init,sys_fanotify_init,sys_fanotify_init_wrapper) diff --git a/fs/compat.c b/fs/compat.c index daa3b771d64d..5058345dc279 100644 --- a/fs/compat.c +++ b/fs/compat.c @@ -1069,192 +1069,6 @@ asmlinkage long compat_sys_getdents64(unsigned int fd, } #endif /* ! __ARCH_OMIT_COMPAT_SYS_GETDENTS64 */ -static ssize_t compat_do_readv_writev(int type, struct file *file, - const struct compat_iovec __user *uvector, - unsigned long nr_segs, loff_t *pos) -{ - compat_ssize_t tot_len; - struct iovec iovstack[UIO_FASTIOV]; - struct iovec *iov = iovstack; - ssize_t ret; - io_fn_t fn; - iov_fn_t fnv; - - ret = -EINVAL; - if (!file->f_op) - goto out; - - ret = compat_rw_copy_check_uvector(type, uvector, nr_segs, - UIO_FASTIOV, iovstack, &iov); - if (ret <= 0) - goto out; - - tot_len = ret; - ret = rw_verify_area(type, file, pos, tot_len); - if (ret < 0) - goto out; - - fnv = NULL; - if (type == READ) { - fn = file->f_op->read; - fnv = file->f_op->aio_read; - } else { - fn = (io_fn_t)file->f_op->write; - fnv = file->f_op->aio_write; - } - - if (fnv) { - file_start_write(file); - ret = do_sync_readv_writev(file, iov, nr_segs, tot_len, - pos, fnv); - file_end_write(file); - } else - ret = do_loop_readv_writev(file, iov, nr_segs, pos, fn); - -out: - if (iov != iovstack) - kfree(iov); - if ((ret + (type == READ)) > 0) { - if (type == READ) - fsnotify_access(file); - else - fsnotify_modify(file); - } - return ret; -} - -static size_t compat_readv(struct file *file, - const struct compat_iovec __user *vec, - unsigned long vlen, loff_t *pos) -{ - ssize_t ret = -EBADF; - - if (!(file->f_mode & FMODE_READ)) - goto out; - - ret = -EINVAL; - if (!file->f_op || (!file->f_op->aio_read && !file->f_op->read)) - goto out; - - ret = compat_do_readv_writev(READ, file, vec, vlen, pos); - -out: - if (ret > 0) - add_rchar(current, ret); - inc_syscr(current); - return ret; -} - -asmlinkage ssize_t -compat_sys_readv(unsigned long fd, const struct compat_iovec __user *vec, - unsigned long vlen) -{ - struct fd f = fdget(fd); - ssize_t ret; - loff_t pos; - - if (!f.file) - return -EBADF; - pos = f.file->f_pos; - ret = compat_readv(f.file, vec, vlen, &pos); - f.file->f_pos = pos; - fdput(f); - return ret; -} - -asmlinkage ssize_t -compat_sys_preadv64(unsigned long fd, const struct compat_iovec __user *vec, - unsigned long vlen, loff_t pos) -{ - struct fd f; - ssize_t ret; - - if (pos < 0) - return -EINVAL; - f = fdget(fd); - if (!f.file) - return -EBADF; - ret = -ESPIPE; - if (f.file->f_mode & FMODE_PREAD) - ret = compat_readv(f.file, vec, vlen, &pos); - fdput(f); - return ret; -} - -asmlinkage ssize_t -compat_sys_preadv(unsigned long fd, const struct compat_iovec __user *vec, - unsigned long vlen, u32 pos_low, u32 pos_high) -{ - loff_t pos = ((loff_t)pos_high << 32) | pos_low; - return compat_sys_preadv64(fd, vec, vlen, pos); -} - -static size_t compat_writev(struct file *file, - const struct compat_iovec __user *vec, - unsigned long vlen, loff_t *pos) -{ - ssize_t ret = -EBADF; - - if (!(file->f_mode & FMODE_WRITE)) - goto out; - - ret = -EINVAL; - if (!file->f_op || (!file->f_op->aio_write && !file->f_op->write)) - goto out; - - ret = compat_do_readv_writev(WRITE, file, vec, vlen, pos); - -out: - if (ret > 0) - add_wchar(current, ret); - inc_syscw(current); - return ret; -} - -asmlinkage ssize_t -compat_sys_writev(unsigned long fd, const struct compat_iovec __user *vec, - unsigned long vlen) -{ - struct fd f = fdget(fd); - ssize_t ret; - loff_t pos; - - if (!f.file) - return -EBADF; - pos = f.file->f_pos; - ret = compat_writev(f.file, vec, vlen, &pos); - f.file->f_pos = pos; - fdput(f); - return ret; -} - -asmlinkage ssize_t -compat_sys_pwritev64(unsigned long fd, const struct compat_iovec __user *vec, - unsigned long vlen, loff_t pos) -{ - struct fd f; - ssize_t ret; - - if (pos < 0) - return -EINVAL; - f = fdget(fd); - if (!f.file) - return -EBADF; - ret = -ESPIPE; - if (f.file->f_mode & FMODE_PWRITE) - ret = compat_writev(f.file, vec, vlen, &pos); - fdput(f); - return ret; -} - -asmlinkage ssize_t -compat_sys_pwritev(unsigned long fd, const struct compat_iovec __user *vec, - unsigned long vlen, u32 pos_low, u32 pos_high) -{ - loff_t pos = ((loff_t)pos_high << 32) | pos_low; - return compat_sys_pwritev64(fd, vec, vlen, pos); -} - asmlinkage long compat_sys_vmsplice(int fd, const struct compat_iovec __user *iov32, unsigned int nr_segs, unsigned int flags) diff --git a/fs/read_write.c b/fs/read_write.c index 3e1791a2cfd6..e6dd1c2d0592 100644 --- a/fs/read_write.c +++ b/fs/read_write.c @@ -591,7 +591,7 @@ unsigned long iov_shorten(struct iovec *iov, unsigned long nr_segs, size_t to) } EXPORT_SYMBOL(iov_shorten); -ssize_t do_sync_readv_writev(struct file *filp, const struct iovec *iov, +static ssize_t do_sync_readv_writev(struct file *filp, const struct iovec *iov, unsigned long nr_segs, size_t len, loff_t *ppos, iov_fn_t fn) { struct kiocb kiocb; @@ -616,7 +616,7 @@ ssize_t do_sync_readv_writev(struct file *filp, const struct iovec *iov, } /* Do it by hand, with file-ops */ -ssize_t do_loop_readv_writev(struct file *filp, struct iovec *iov, +static ssize_t do_loop_readv_writev(struct file *filp, struct iovec *iov, unsigned long nr_segs, loff_t *ppos, io_fn_t fn) { struct iovec *vector = iov; @@ -898,6 +898,199 @@ SYSCALL_DEFINE5(pwritev, unsigned long, fd, const struct iovec __user *, vec, return ret; } +#ifdef CONFIG_COMPAT + +static ssize_t compat_do_readv_writev(int type, struct file *file, + const struct compat_iovec __user *uvector, + unsigned long nr_segs, loff_t *pos) +{ + compat_ssize_t tot_len; + struct iovec iovstack[UIO_FASTIOV]; + struct iovec *iov = iovstack; + ssize_t ret; + io_fn_t fn; + iov_fn_t fnv; + + ret = -EINVAL; + if (!file->f_op) + goto out; + + ret = -EFAULT; + if (!access_ok(VERIFY_READ, uvector, nr_segs*sizeof(*uvector))) + goto out; + + ret = compat_rw_copy_check_uvector(type, uvector, nr_segs, + UIO_FASTIOV, iovstack, &iov); + if (ret <= 0) + goto out; + + tot_len = ret; + ret = rw_verify_area(type, file, pos, tot_len); + if (ret < 0) + goto out; + + fnv = NULL; + if (type == READ) { + fn = file->f_op->read; + fnv = file->f_op->aio_read; + } else { + fn = (io_fn_t)file->f_op->write; + fnv = file->f_op->aio_write; + } + + if (fnv) { + file_start_write(file); + ret = do_sync_readv_writev(file, iov, nr_segs, tot_len, + pos, fnv); + file_end_write(file); + } else + ret = do_loop_readv_writev(file, iov, nr_segs, pos, fn); + +out: + if (iov != iovstack) + kfree(iov); + if ((ret + (type == READ)) > 0) { + if (type == READ) + fsnotify_access(file); + else + fsnotify_modify(file); + } + return ret; +} + +static size_t compat_readv(struct file *file, + const struct compat_iovec __user *vec, + unsigned long vlen, loff_t *pos) +{ + ssize_t ret = -EBADF; + + if (!(file->f_mode & FMODE_READ)) + goto out; + + ret = -EINVAL; + if (!file->f_op || (!file->f_op->aio_read && !file->f_op->read)) + goto out; + + ret = compat_do_readv_writev(READ, file, vec, vlen, pos); + +out: + if (ret > 0) + add_rchar(current, ret); + inc_syscr(current); + return ret; +} + +COMPAT_SYSCALL_DEFINE3(readv, unsigned long, fd, + const struct compat_iovec __user *,vec, + unsigned long, vlen) +{ + struct fd f = fdget(fd); + ssize_t ret; + loff_t pos; + + if (!f.file) + return -EBADF; + pos = f.file->f_pos; + ret = compat_readv(f.file, vec, vlen, &pos); + f.file->f_pos = pos; + fdput(f); + return ret; +} + +COMPAT_SYSCALL_DEFINE4(preadv64, unsigned long, fd, + const struct compat_iovec __user *,vec, + unsigned long, vlen, loff_t, pos) +{ + struct fd f; + ssize_t ret; + + if (pos < 0) + return -EINVAL; + f = fdget(fd); + if (!f.file) + return -EBADF; + ret = -ESPIPE; + if (f.file->f_mode & FMODE_PREAD) + ret = compat_readv(f.file, vec, vlen, &pos); + fdput(f); + return ret; +} + +COMPAT_SYSCALL_DEFINE5(preadv, unsigned long, fd, + const struct compat_iovec __user *,vec, + unsigned long, vlen, u32, pos_low, u32, pos_high) +{ + loff_t pos = ((loff_t)pos_high << 32) | pos_low; + return compat_sys_preadv64(fd, vec, vlen, pos); +} + +static size_t compat_writev(struct file *file, + const struct compat_iovec __user *vec, + unsigned long vlen, loff_t *pos) +{ + ssize_t ret = -EBADF; + + if (!(file->f_mode & FMODE_WRITE)) + goto out; + + ret = -EINVAL; + if (!file->f_op || (!file->f_op->aio_write && !file->f_op->write)) + goto out; + + ret = compat_do_readv_writev(WRITE, file, vec, vlen, pos); + +out: + if (ret > 0) + add_wchar(current, ret); + inc_syscw(current); + return ret; +} + +COMPAT_SYSCALL_DEFINE3(writev, unsigned long, fd, + const struct compat_iovec __user *, vec, + unsigned long, vlen) +{ + struct fd f = fdget(fd); + ssize_t ret; + loff_t pos; + + if (!f.file) + return -EBADF; + pos = f.file->f_pos; + ret = compat_writev(f.file, vec, vlen, &pos); + f.file->f_pos = pos; + fdput(f); + return ret; +} + +COMPAT_SYSCALL_DEFINE4(pwritev64, unsigned long, fd, + const struct compat_iovec __user *,vec, + unsigned long, vlen, loff_t, pos) +{ + struct fd f; + ssize_t ret; + + if (pos < 0) + return -EINVAL; + f = fdget(fd); + if (!f.file) + return -EBADF; + ret = -ESPIPE; + if (f.file->f_mode & FMODE_PWRITE) + ret = compat_writev(f.file, vec, vlen, &pos); + fdput(f); + return ret; +} + +COMPAT_SYSCALL_DEFINE5(pwritev, unsigned long, fd, + const struct compat_iovec __user *,vec, + unsigned long, vlen, u32, pos_low, u32, pos_high) +{ + loff_t pos = ((loff_t)pos_high << 32) | pos_low; + return compat_sys_pwritev64(fd, vec, vlen, pos); +} +#endif + ssize_t do_sendfile(int out_fd, int in_fd, loff_t *ppos, size_t count, loff_t max) { diff --git a/fs/read_write.h b/fs/read_write.h index d3e00ef67420..b98780664ffa 100644 --- a/fs/read_write.h +++ b/fs/read_write.h @@ -8,9 +8,5 @@ typedef ssize_t (*io_fn_t)(struct file *, char __user *, size_t, loff_t *); typedef ssize_t (*iov_fn_t)(struct kiocb *, const struct iovec *, unsigned long, loff_t); -ssize_t do_sync_readv_writev(struct file *filp, const struct iovec *iov, - unsigned long nr_segs, size_t len, loff_t *ppos, iov_fn_t fn); -ssize_t do_loop_readv_writev(struct file *filp, struct iovec *iov, - unsigned long nr_segs, loff_t *ppos, io_fn_t fn); ssize_t do_sendfile(int out_fd, int in_fd, loff_t *ppos, size_t count, loff_t max); From 03d95eb2f2578083a3f6286262e1cb5d88a00c02 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Wed, 20 Mar 2013 13:04:20 -0400 Subject: [PATCH 013/204] lift sb_start_write() out of ->write() Signed-off-by: Al Viro --- drivers/block/loop.c | 2 ++ fs/cachefiles/rdwr.c | 2 ++ fs/coda/file.c | 2 ++ fs/coredump.c | 2 ++ fs/read_write.c | 24 ++++++++++++++---------- fs/splice.c | 2 ++ kernel/acct.c | 2 ++ mm/filemap_xip.c | 3 --- 8 files changed, 26 insertions(+), 13 deletions(-) diff --git a/drivers/block/loop.c b/drivers/block/loop.c index 747bb2af69dc..cd1e17460f03 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -230,9 +230,11 @@ static int __do_lo_send_write(struct file *file, ssize_t bw; mm_segment_t old_fs = get_fs(); + file_start_write(file); set_fs(get_ds()); bw = file->f_op->write(file, buf, len, &pos); set_fs(old_fs); + file_end_write(file); if (likely(bw == len)) return 0; printk(KERN_ERR "loop: Write error at byte offset %llu, length %i.\n", diff --git a/fs/cachefiles/rdwr.c b/fs/cachefiles/rdwr.c index 480992259707..317f9ee9c991 100644 --- a/fs/cachefiles/rdwr.c +++ b/fs/cachefiles/rdwr.c @@ -962,12 +962,14 @@ int cachefiles_write_page(struct fscache_storage *op, struct page *page) } data = kmap(page); + file_start_write(file); old_fs = get_fs(); set_fs(KERNEL_DS); ret = file->f_op->write( file, (const void __user *) data, len, &pos); set_fs(old_fs); kunmap(page); + file_end_write(file); if (ret != len) ret = -EIO; } diff --git a/fs/coda/file.c b/fs/coda/file.c index fa4c100bdc7d..380b798f8443 100644 --- a/fs/coda/file.c +++ b/fs/coda/file.c @@ -79,6 +79,7 @@ coda_file_write(struct file *coda_file, const char __user *buf, size_t count, lo return -EINVAL; host_inode = file_inode(host_file); + file_start_write(host_file); mutex_lock(&coda_inode->i_mutex); ret = host_file->f_op->write(host_file, buf, count, ppos); @@ -87,6 +88,7 @@ coda_file_write(struct file *coda_file, const char __user *buf, size_t count, lo coda_inode->i_blocks = (coda_inode->i_size + 511) >> 9; coda_inode->i_mtime = coda_inode->i_ctime = CURRENT_TIME_SEC; mutex_unlock(&coda_inode->i_mutex); + file_end_write(host_file); return ret; } diff --git a/fs/coredump.c b/fs/coredump.c index c6479658d487..288e5c9f9bbe 100644 --- a/fs/coredump.c +++ b/fs/coredump.c @@ -629,9 +629,11 @@ void do_coredump(siginfo_t *siginfo) goto close_fail; if (displaced) put_files_struct(displaced); + file_start_write(cprm.file); retval = binfmt->core_dump(&cprm); if (retval) current->signal->group_exit_code |= 0x80; + file_end_write(cprm.file); if (ispipe && core_pipe_limit) wait_for_dump_helpers(cprm.file); diff --git a/fs/read_write.c b/fs/read_write.c index e6dd1c2d0592..a1f4d44cbc03 100644 --- a/fs/read_write.c +++ b/fs/read_write.c @@ -398,7 +398,6 @@ ssize_t do_sync_write(struct file *filp, const char __user *buf, size_t len, lof struct kiocb kiocb; ssize_t ret; - file_start_write(filp); init_sync_kiocb(&kiocb, filp); kiocb.ki_pos = *ppos; kiocb.ki_left = len; @@ -414,7 +413,6 @@ ssize_t do_sync_write(struct file *filp, const char __user *buf, size_t len, lof if (-EIOCBQUEUED == ret) ret = wait_on_sync_kiocb(&kiocb); *ppos = kiocb.ki_pos; - file_end_write(filp); return ret; } @@ -458,6 +456,7 @@ ssize_t vfs_write(struct file *file, const char __user *buf, size_t count, loff_ ret = rw_verify_area(WRITE, file, pos, count); if (ret >= 0) { count = ret; + file_start_write(file); if (file->f_op->write) ret = file->f_op->write(file, buf, count, pos); else @@ -467,6 +466,7 @@ ssize_t vfs_write(struct file *file, const char __user *buf, size_t count, loff_ add_wchar(current, ret); } inc_syscw(current); + file_end_write(file); } return ret; @@ -758,16 +758,18 @@ static ssize_t do_readv_writev(int type, struct file *file, } else { fn = (io_fn_t)file->f_op->write; fnv = file->f_op->aio_write; + file_start_write(file); } - if (fnv) { - file_start_write(file); + if (fnv) ret = do_sync_readv_writev(file, iov, nr_segs, tot_len, pos, fnv); - file_end_write(file); - } else + else ret = do_loop_readv_writev(file, iov, nr_segs, pos, fn); + if (type != READ) + file_end_write(file); + out: if (iov != iovstack) kfree(iov); @@ -936,16 +938,18 @@ static ssize_t compat_do_readv_writev(int type, struct file *file, } else { fn = (io_fn_t)file->f_op->write; fnv = file->f_op->aio_write; + file_start_write(file); } - if (fnv) { - file_start_write(file); + if (fnv) ret = do_sync_readv_writev(file, iov, nr_segs, tot_len, pos, fnv); - file_end_write(file); - } else + else ret = do_loop_readv_writev(file, iov, nr_segs, pos, fn); + if (type != READ) + file_end_write(file); + out: if (iov != iovstack) kfree(iov); diff --git a/fs/splice.c b/fs/splice.c index 29e394e49ddd..e78a749064db 100644 --- a/fs/splice.c +++ b/fs/splice.c @@ -1052,7 +1052,9 @@ static int write_pipe_buf(struct pipe_inode_info *pipe, struct pipe_buffer *buf, loff_t tmp = sd->pos; data = buf->ops->map(pipe, buf, 0); + file_start_write(sd->u.file); ret = __kernel_write(sd->u.file, data + buf->offset, sd->len, &tmp); + file_end_write(sd->u.file); buf->ops->unmap(pipe, buf, data); return ret; diff --git a/kernel/acct.c b/kernel/acct.c index b9bd7f098ee5..85389fe2abd0 100644 --- a/kernel/acct.c +++ b/kernel/acct.c @@ -543,6 +543,7 @@ static void do_acct_process(struct bsd_acct_struct *acct, * Kernel segment override to datasegment and write it * to the accounting file. */ + file_start_write(file); fs = get_fs(); set_fs(KERNEL_DS); /* @@ -554,6 +555,7 @@ static void do_acct_process(struct bsd_acct_struct *acct, sizeof(acct_t), &file->f_pos); current->signal->rlim[RLIMIT_FSIZE].rlim_cur = flim; set_fs(fs); + file_end_write(file); out: revert_creds(orig_cred); } diff --git a/mm/filemap_xip.c b/mm/filemap_xip.c index a912da6ddfd4..28fe26b64f8a 100644 --- a/mm/filemap_xip.c +++ b/mm/filemap_xip.c @@ -404,8 +404,6 @@ xip_file_write(struct file *filp, const char __user *buf, size_t len, loff_t pos; ssize_t ret; - sb_start_write(inode->i_sb); - mutex_lock(&inode->i_mutex); if (!access_ok(VERIFY_READ, buf, len)) { @@ -439,7 +437,6 @@ xip_file_write(struct file *filp, const char __user *buf, size_t len, current->backing_dev_info = NULL; out_up: mutex_unlock(&inode->i_mutex); - sb_end_write(inode->i_sb); return ret; } EXPORT_SYMBOL_GPL(xip_file_write); From 17338fccb28ec38097041074dcdc2016df538290 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Wed, 20 Mar 2013 13:19:30 -0400 Subject: [PATCH 014/204] lift sb_start_write into default_file_splice_write() Signed-off-by: Al Viro --- fs/splice.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/splice.c b/fs/splice.c index e78a749064db..17d7323bc2c5 100644 --- a/fs/splice.c +++ b/fs/splice.c @@ -1052,9 +1052,7 @@ static int write_pipe_buf(struct pipe_inode_info *pipe, struct pipe_buffer *buf, loff_t tmp = sd->pos; data = buf->ops->map(pipe, buf, 0); - file_start_write(sd->u.file); ret = __kernel_write(sd->u.file, data + buf->offset, sd->len, &tmp); - file_end_write(sd->u.file); buf->ops->unmap(pipe, buf, data); return ret; @@ -1066,7 +1064,9 @@ static ssize_t default_file_splice_write(struct pipe_inode_info *pipe, { ssize_t ret; + file_start_write(out); ret = splice_from_pipe(pipe, out, ppos, len, flags, write_pipe_buf); + file_end_write(out); if (ret > 0) *ppos += ret; From 2dd8c9ad376ccc5d2980b38e96372a8e252ae8d0 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Wed, 20 Mar 2013 13:21:32 -0400 Subject: [PATCH 015/204] lift sb_start_write out of ->splice_write() Signed-off-by: Al Viro --- fs/splice.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/fs/splice.c b/fs/splice.c index 17d7323bc2c5..7efc2f5057fb 100644 --- a/fs/splice.c +++ b/fs/splice.c @@ -1000,8 +1000,6 @@ generic_file_splice_write(struct pipe_inode_info *pipe, struct file *out, }; ssize_t ret; - sb_start_write(inode->i_sb); - pipe_lock(pipe); splice_from_pipe_begin(&sd); @@ -1037,7 +1035,6 @@ generic_file_splice_write(struct pipe_inode_info *pipe, struct file *out, *ppos += ret; balance_dirty_pages_ratelimited(mapping); } - sb_end_write(inode->i_sb); return ret; } @@ -1064,9 +1061,7 @@ static ssize_t default_file_splice_write(struct pipe_inode_info *pipe, { ssize_t ret; - file_start_write(out); ret = splice_from_pipe(pipe, out, ppos, len, flags, write_pipe_buf); - file_end_write(out); if (ret > 0) *ppos += ret; @@ -1119,7 +1114,10 @@ static long do_splice_from(struct pipe_inode_info *pipe, struct file *out, else splice_write = default_file_splice_write; - return splice_write(pipe, out, ppos, len, flags); + file_start_write(out); + ret = splice_write(pipe, out, ppos, len, flags); + file_end_write(out); + return ret; } /* From f776c738883bc949e654568a565aee5a7d3fe133 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Tue, 12 Mar 2013 09:46:27 -0400 Subject: [PATCH 016/204] fold fifo.c into pipe.c Signed-off-by: Al Viro --- fs/Makefile | 2 +- fs/fifo.c | 153 ---------------------------------------------------- fs/pipe.c | 138 +++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 139 insertions(+), 154 deletions(-) delete mode 100644 fs/fifo.c diff --git a/fs/Makefile b/fs/Makefile index 9d53192236fc..b691a965dc1a 100644 --- a/fs/Makefile +++ b/fs/Makefile @@ -7,7 +7,7 @@ obj-y := open.o read_write.o file_table.o super.o \ char_dev.o stat.o exec.o pipe.o namei.o fcntl.o \ - ioctl.o readdir.o select.o fifo.o dcache.o inode.o \ + ioctl.o readdir.o select.o dcache.o inode.o \ attr.o bad_inode.o file.o filesystems.o namespace.o \ seq_file.o xattr.o libfs.o fs-writeback.o \ pnode.o drop_caches.o splice.o sync.o utimes.o \ diff --git a/fs/fifo.c b/fs/fifo.c deleted file mode 100644 index cf6f4345ceb0..000000000000 --- a/fs/fifo.c +++ /dev/null @@ -1,153 +0,0 @@ -/* - * linux/fs/fifo.c - * - * written by Paul H. Hargrove - * - * Fixes: - * 10-06-1999, AV: fixed OOM handling in fifo_open(), moved - * initialization there, switched to external - * allocation of pipe_inode_info. - */ - -#include -#include -#include -#include - -static int wait_for_partner(struct inode* inode, unsigned int *cnt) -{ - int cur = *cnt; - - while (cur == *cnt) { - pipe_wait(inode->i_pipe); - if (signal_pending(current)) - break; - } - return cur == *cnt ? -ERESTARTSYS : 0; -} - -static void wake_up_partner(struct inode* inode) -{ - wake_up_interruptible(&inode->i_pipe->wait); -} - -static int fifo_open(struct inode *inode, struct file *filp) -{ - struct pipe_inode_info *pipe; - int ret; - - mutex_lock(&inode->i_mutex); - pipe = inode->i_pipe; - if (!pipe) { - ret = -ENOMEM; - pipe = alloc_pipe_info(inode); - if (!pipe) - goto err_nocleanup; - inode->i_pipe = pipe; - } - filp->f_version = 0; - - /* We can only do regular read/write on fifos */ - filp->f_mode &= (FMODE_READ | FMODE_WRITE); - - switch (filp->f_mode) { - case FMODE_READ: - /* - * O_RDONLY - * POSIX.1 says that O_NONBLOCK means return with the FIFO - * opened, even when there is no process writing the FIFO. - */ - filp->f_op = &read_pipefifo_fops; - pipe->r_counter++; - if (pipe->readers++ == 0) - wake_up_partner(inode); - - if (!pipe->writers) { - if ((filp->f_flags & O_NONBLOCK)) { - /* suppress POLLHUP until we have - * seen a writer */ - filp->f_version = pipe->w_counter; - } else { - if (wait_for_partner(inode, &pipe->w_counter)) - goto err_rd; - } - } - break; - - case FMODE_WRITE: - /* - * O_WRONLY - * POSIX.1 says that O_NONBLOCK means return -1 with - * errno=ENXIO when there is no process reading the FIFO. - */ - ret = -ENXIO; - if ((filp->f_flags & O_NONBLOCK) && !pipe->readers) - goto err; - - filp->f_op = &write_pipefifo_fops; - pipe->w_counter++; - if (!pipe->writers++) - wake_up_partner(inode); - - if (!pipe->readers) { - if (wait_for_partner(inode, &pipe->r_counter)) - goto err_wr; - } - break; - - case FMODE_READ | FMODE_WRITE: - /* - * O_RDWR - * POSIX.1 leaves this case "undefined" when O_NONBLOCK is set. - * This implementation will NEVER block on a O_RDWR open, since - * the process can at least talk to itself. - */ - filp->f_op = &rdwr_pipefifo_fops; - - pipe->readers++; - pipe->writers++; - pipe->r_counter++; - pipe->w_counter++; - if (pipe->readers == 1 || pipe->writers == 1) - wake_up_partner(inode); - break; - - default: - ret = -EINVAL; - goto err; - } - - /* Ok! */ - mutex_unlock(&inode->i_mutex); - return 0; - -err_rd: - if (!--pipe->readers) - wake_up_interruptible(&pipe->wait); - ret = -ERESTARTSYS; - goto err; - -err_wr: - if (!--pipe->writers) - wake_up_interruptible(&pipe->wait); - ret = -ERESTARTSYS; - goto err; - -err: - if (!pipe->readers && !pipe->writers) - free_pipe_info(inode); - -err_nocleanup: - mutex_unlock(&inode->i_mutex); - return ret; -} - -/* - * Dummy default file-operations: the only thing this does - * is contain the open that then fills in the correct operations - * depending on the access mode of the file... - */ -const struct file_operations def_fifo_fops = { - .open = fifo_open, /* will set read_ or write_pipefifo_fops */ - .llseek = noop_llseek, -}; diff --git a/fs/pipe.c b/fs/pipe.c index 2234f3f61f8d..aed80c25cd40 100644 --- a/fs/pipe.c +++ b/fs/pipe.c @@ -1144,6 +1144,144 @@ SYSCALL_DEFINE1(pipe, int __user *, fildes) return sys_pipe2(fildes, 0); } +static int wait_for_partner(struct inode* inode, unsigned int *cnt) +{ + int cur = *cnt; + + while (cur == *cnt) { + pipe_wait(inode->i_pipe); + if (signal_pending(current)) + break; + } + return cur == *cnt ? -ERESTARTSYS : 0; +} + +static void wake_up_partner(struct inode* inode) +{ + wake_up_interruptible(&inode->i_pipe->wait); +} + +static int fifo_open(struct inode *inode, struct file *filp) +{ + struct pipe_inode_info *pipe; + int ret; + + mutex_lock(&inode->i_mutex); + pipe = inode->i_pipe; + if (!pipe) { + ret = -ENOMEM; + pipe = alloc_pipe_info(inode); + if (!pipe) + goto err_nocleanup; + inode->i_pipe = pipe; + } + filp->f_version = 0; + + /* We can only do regular read/write on fifos */ + filp->f_mode &= (FMODE_READ | FMODE_WRITE); + + switch (filp->f_mode) { + case FMODE_READ: + /* + * O_RDONLY + * POSIX.1 says that O_NONBLOCK means return with the FIFO + * opened, even when there is no process writing the FIFO. + */ + filp->f_op = &read_pipefifo_fops; + pipe->r_counter++; + if (pipe->readers++ == 0) + wake_up_partner(inode); + + if (!pipe->writers) { + if ((filp->f_flags & O_NONBLOCK)) { + /* suppress POLLHUP until we have + * seen a writer */ + filp->f_version = pipe->w_counter; + } else { + if (wait_for_partner(inode, &pipe->w_counter)) + goto err_rd; + } + } + break; + + case FMODE_WRITE: + /* + * O_WRONLY + * POSIX.1 says that O_NONBLOCK means return -1 with + * errno=ENXIO when there is no process reading the FIFO. + */ + ret = -ENXIO; + if ((filp->f_flags & O_NONBLOCK) && !pipe->readers) + goto err; + + filp->f_op = &write_pipefifo_fops; + pipe->w_counter++; + if (!pipe->writers++) + wake_up_partner(inode); + + if (!pipe->readers) { + if (wait_for_partner(inode, &pipe->r_counter)) + goto err_wr; + } + break; + + case FMODE_READ | FMODE_WRITE: + /* + * O_RDWR + * POSIX.1 leaves this case "undefined" when O_NONBLOCK is set. + * This implementation will NEVER block on a O_RDWR open, since + * the process can at least talk to itself. + */ + filp->f_op = &rdwr_pipefifo_fops; + + pipe->readers++; + pipe->writers++; + pipe->r_counter++; + pipe->w_counter++; + if (pipe->readers == 1 || pipe->writers == 1) + wake_up_partner(inode); + break; + + default: + ret = -EINVAL; + goto err; + } + + /* Ok! */ + mutex_unlock(&inode->i_mutex); + return 0; + +err_rd: + if (!--pipe->readers) + wake_up_interruptible(&pipe->wait); + ret = -ERESTARTSYS; + goto err; + +err_wr: + if (!--pipe->writers) + wake_up_interruptible(&pipe->wait); + ret = -ERESTARTSYS; + goto err; + +err: + if (!pipe->readers && !pipe->writers) + free_pipe_info(inode); + +err_nocleanup: + mutex_unlock(&inode->i_mutex); + return ret; +} + +/* + * Dummy default file-operations: the only thing this does + * is contain the open that then fills in the correct operations + * depending on the access mode of the file... + */ +const struct file_operations def_fifo_fops = { + .open = fifo_open, /* will set read_ or write_pipefifo_fops */ + .llseek = noop_llseek, +}; + /* * Allocate a new array of pipe buffers and copy the info over. Returns the * pipe size if successful, or return -ERROR on error. From 599a0ac14e065b7c08471ef2e75a504b7dec9267 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Tue, 12 Mar 2013 09:58:10 -0400 Subject: [PATCH 017/204] pipe: fold file_operations instances in one Signed-off-by: Al Viro --- fs/inode.c | 2 +- fs/internal.h | 5 + fs/pipe.c | 221 +++++++-------------------------------------- include/linux/fs.h | 5 - 4 files changed, 38 insertions(+), 195 deletions(-) diff --git a/fs/inode.c b/fs/inode.c index f5f7c06c36fb..5b76d9b1a884 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -1803,7 +1803,7 @@ void init_special_inode(struct inode *inode, umode_t mode, dev_t rdev) inode->i_fop = &def_blk_fops; inode->i_rdev = rdev; } else if (S_ISFIFO(mode)) - inode->i_fop = &def_fifo_fops; + inode->i_fop = &pipefifo_fops; else if (S_ISSOCK(mode)) inode->i_fop = &bad_sock_fops; else diff --git a/fs/internal.h b/fs/internal.h index 4be78237d896..eaa75f75b625 100644 --- a/fs/internal.h +++ b/fs/internal.h @@ -130,3 +130,8 @@ extern struct dentry *__d_alloc(struct super_block *, const struct qstr *); * read_write.c */ extern ssize_t __kernel_write(struct file *, const char *, size_t, loff_t *); + +/* + * pipe.c + */ +extern const struct file_operations pipefifo_fops; diff --git a/fs/pipe.c b/fs/pipe.c index aed80c25cd40..099ac3bf89f9 100644 --- a/fs/pipe.c +++ b/fs/pipe.c @@ -25,6 +25,8 @@ #include #include +#include "internal.h" + /* * The max size that a non-root user is allowed to grow the pipe. Can * be set by root in /proc/sys/fs/pipe-max-size @@ -662,19 +664,6 @@ pipe_write(struct kiocb *iocb, const struct iovec *_iov, return ret; } -static ssize_t -bad_pipe_r(struct file *filp, char __user *buf, size_t count, loff_t *ppos) -{ - return -EBADF; -} - -static ssize_t -bad_pipe_w(struct file *filp, const char __user *buf, size_t count, - loff_t *ppos) -{ - return -EBADF; -} - static long pipe_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) { struct inode *inode = file_inode(filp); @@ -734,14 +723,16 @@ pipe_poll(struct file *filp, poll_table *wait) } static int -pipe_release(struct inode *inode, int decr, int decw) +pipe_release(struct inode *inode, struct file *file) { struct pipe_inode_info *pipe; mutex_lock(&inode->i_mutex); pipe = inode->i_pipe; - pipe->readers -= decr; - pipe->writers -= decw; + if (file->f_mode & FMODE_READ) + pipe->readers--; + if (file->f_mode & FMODE_WRITE) + pipe->writers--; if (!pipe->readers && !pipe->writers) { free_pipe_info(inode); @@ -756,174 +747,25 @@ pipe_release(struct inode *inode, int decr, int decw) } static int -pipe_read_fasync(int fd, struct file *filp, int on) -{ - struct inode *inode = file_inode(filp); - int retval; - - mutex_lock(&inode->i_mutex); - retval = fasync_helper(fd, filp, on, &inode->i_pipe->fasync_readers); - mutex_unlock(&inode->i_mutex); - - return retval; -} - - -static int -pipe_write_fasync(int fd, struct file *filp, int on) -{ - struct inode *inode = file_inode(filp); - int retval; - - mutex_lock(&inode->i_mutex); - retval = fasync_helper(fd, filp, on, &inode->i_pipe->fasync_writers); - mutex_unlock(&inode->i_mutex); - - return retval; -} - - -static int -pipe_rdwr_fasync(int fd, struct file *filp, int on) +pipe_fasync(int fd, struct file *filp, int on) { struct inode *inode = file_inode(filp); struct pipe_inode_info *pipe = inode->i_pipe; - int retval; + int retval = 0; mutex_lock(&inode->i_mutex); - retval = fasync_helper(fd, filp, on, &pipe->fasync_readers); - if (retval >= 0) { + if (filp->f_mode & FMODE_READ) + retval = fasync_helper(fd, filp, on, &pipe->fasync_readers); + if ((filp->f_mode & FMODE_WRITE) && retval >= 0) { retval = fasync_helper(fd, filp, on, &pipe->fasync_writers); - if (retval < 0) /* this can happen only if on == T */ + if (retval < 0 && (filp->f_mode & FMODE_READ)) + /* this can happen only if on == T */ fasync_helper(-1, filp, 0, &pipe->fasync_readers); } mutex_unlock(&inode->i_mutex); return retval; } - -static int -pipe_read_release(struct inode *inode, struct file *filp) -{ - return pipe_release(inode, 1, 0); -} - -static int -pipe_write_release(struct inode *inode, struct file *filp) -{ - return pipe_release(inode, 0, 1); -} - -static int -pipe_rdwr_release(struct inode *inode, struct file *filp) -{ - int decr, decw; - - decr = (filp->f_mode & FMODE_READ) != 0; - decw = (filp->f_mode & FMODE_WRITE) != 0; - return pipe_release(inode, decr, decw); -} - -static int -pipe_read_open(struct inode *inode, struct file *filp) -{ - int ret = -ENOENT; - - mutex_lock(&inode->i_mutex); - - if (inode->i_pipe) { - ret = 0; - inode->i_pipe->readers++; - } - - mutex_unlock(&inode->i_mutex); - - return ret; -} - -static int -pipe_write_open(struct inode *inode, struct file *filp) -{ - int ret = -ENOENT; - - mutex_lock(&inode->i_mutex); - - if (inode->i_pipe) { - ret = 0; - inode->i_pipe->writers++; - } - - mutex_unlock(&inode->i_mutex); - - return ret; -} - -static int -pipe_rdwr_open(struct inode *inode, struct file *filp) -{ - int ret = -ENOENT; - - if (!(filp->f_mode & (FMODE_READ|FMODE_WRITE))) - return -EINVAL; - - mutex_lock(&inode->i_mutex); - - if (inode->i_pipe) { - ret = 0; - if (filp->f_mode & FMODE_READ) - inode->i_pipe->readers++; - if (filp->f_mode & FMODE_WRITE) - inode->i_pipe->writers++; - } - - mutex_unlock(&inode->i_mutex); - - return ret; -} - -/* - * The file_operations structs are not static because they - * are also used in linux/fs/fifo.c to do operations on FIFOs. - * - * Pipes reuse fifos' file_operations structs. - */ -const struct file_operations read_pipefifo_fops = { - .llseek = no_llseek, - .read = do_sync_read, - .aio_read = pipe_read, - .write = bad_pipe_w, - .poll = pipe_poll, - .unlocked_ioctl = pipe_ioctl, - .open = pipe_read_open, - .release = pipe_read_release, - .fasync = pipe_read_fasync, -}; - -const struct file_operations write_pipefifo_fops = { - .llseek = no_llseek, - .read = bad_pipe_r, - .write = do_sync_write, - .aio_write = pipe_write, - .poll = pipe_poll, - .unlocked_ioctl = pipe_ioctl, - .open = pipe_write_open, - .release = pipe_write_release, - .fasync = pipe_write_fasync, -}; - -const struct file_operations rdwr_pipefifo_fops = { - .llseek = no_llseek, - .read = do_sync_read, - .aio_read = pipe_read, - .write = do_sync_write, - .aio_write = pipe_write, - .poll = pipe_poll, - .unlocked_ioctl = pipe_ioctl, - .open = pipe_rdwr_open, - .release = pipe_rdwr_release, - .fasync = pipe_rdwr_fasync, -}; - struct pipe_inode_info * alloc_pipe_info(struct inode *inode) { struct pipe_inode_info *pipe; @@ -996,7 +838,7 @@ static struct inode * get_pipe_inode(void) inode->i_pipe = pipe; pipe->readers = pipe->writers = 1; - inode->i_fop = &rdwr_pipefifo_fops; + inode->i_fop = &pipefifo_fops; /* * Mark the inode dirty from the very beginning, @@ -1039,13 +881,13 @@ int create_pipe_files(struct file **res, int flags) d_instantiate(path.dentry, inode); err = -ENFILE; - f = alloc_file(&path, FMODE_WRITE, &write_pipefifo_fops); + f = alloc_file(&path, FMODE_WRITE, &pipefifo_fops); if (IS_ERR(f)) goto err_dentry; f->f_flags = O_WRONLY | (flags & (O_NONBLOCK | O_DIRECT)); - res[0] = alloc_file(&path, FMODE_READ, &read_pipefifo_fops); + res[0] = alloc_file(&path, FMODE_READ, &pipefifo_fops); if (IS_ERR(res[0])) goto err_file; @@ -1164,6 +1006,7 @@ static void wake_up_partner(struct inode* inode) static int fifo_open(struct inode *inode, struct file *filp) { struct pipe_inode_info *pipe; + bool is_pipe = inode->i_sb->s_magic == PIPEFS_MAGIC; int ret; mutex_lock(&inode->i_mutex); @@ -1187,12 +1030,11 @@ static int fifo_open(struct inode *inode, struct file *filp) * POSIX.1 says that O_NONBLOCK means return with the FIFO * opened, even when there is no process writing the FIFO. */ - filp->f_op = &read_pipefifo_fops; pipe->r_counter++; if (pipe->readers++ == 0) wake_up_partner(inode); - if (!pipe->writers) { + if (!is_pipe && !pipe->writers) { if ((filp->f_flags & O_NONBLOCK)) { /* suppress POLLHUP until we have * seen a writer */ @@ -1211,15 +1053,14 @@ static int fifo_open(struct inode *inode, struct file *filp) * errno=ENXIO when there is no process reading the FIFO. */ ret = -ENXIO; - if ((filp->f_flags & O_NONBLOCK) && !pipe->readers) + if (!is_pipe && (filp->f_flags & O_NONBLOCK) && !pipe->readers) goto err; - filp->f_op = &write_pipefifo_fops; pipe->w_counter++; if (!pipe->writers++) wake_up_partner(inode); - if (!pipe->readers) { + if (!is_pipe && !pipe->readers) { if (wait_for_partner(inode, &pipe->r_counter)) goto err_wr; } @@ -1232,7 +1073,6 @@ static int fifo_open(struct inode *inode, struct file *filp) * This implementation will NEVER block on a O_RDWR open, since * the process can at least talk to itself. */ - filp->f_op = &rdwr_pipefifo_fops; pipe->readers++; pipe->writers++; @@ -1272,14 +1112,17 @@ static int fifo_open(struct inode *inode, struct file *filp) return ret; } -/* - * Dummy default file-operations: the only thing this does - * is contain the open that then fills in the correct operations - * depending on the access mode of the file... - */ -const struct file_operations def_fifo_fops = { - .open = fifo_open, /* will set read_ or write_pipefifo_fops */ - .llseek = noop_llseek, +const struct file_operations pipefifo_fops = { + .open = fifo_open, + .llseek = no_llseek, + .read = do_sync_read, + .aio_read = pipe_read, + .write = do_sync_write, + .aio_write = pipe_write, + .poll = pipe_poll, + .unlocked_ioctl = pipe_ioctl, + .release = pipe_release, + .fasync = pipe_fasync, }; /* diff --git a/include/linux/fs.h b/include/linux/fs.h index 578a66e6ee72..b1f28b02ede6 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -2080,7 +2080,6 @@ extern int sync_filesystem(struct super_block *); extern const struct file_operations def_blk_fops; extern const struct file_operations def_chr_fops; extern const struct file_operations bad_sock_fops; -extern const struct file_operations def_fifo_fops; #ifdef CONFIG_BLOCK extern int ioctl_by_bdev(struct block_device *, unsigned, unsigned long); extern int blkdev_ioctl(struct block_device *, fmode_t, unsigned, unsigned long); @@ -2152,10 +2151,6 @@ extern void init_special_inode(struct inode *, umode_t, dev_t); extern void make_bad_inode(struct inode *); extern int is_bad_inode(struct inode *); -extern const struct file_operations read_pipefifo_fops; -extern const struct file_operations write_pipefifo_fops; -extern const struct file_operations rdwr_pipefifo_fops; - #ifdef CONFIG_BLOCK /* * return READ, READA, or WRITE From fc7478a2bfa9abd19657d2bbc9ae24185a41e21b Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 21 Mar 2013 02:07:59 -0400 Subject: [PATCH 018/204] pipe: switch wait_for_partner() and wake_up_partner() to pipe_inode_info Signed-off-by: Al Viro --- fs/pipe.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/fs/pipe.c b/fs/pipe.c index 099ac3bf89f9..105b0021b075 100644 --- a/fs/pipe.c +++ b/fs/pipe.c @@ -986,21 +986,21 @@ SYSCALL_DEFINE1(pipe, int __user *, fildes) return sys_pipe2(fildes, 0); } -static int wait_for_partner(struct inode* inode, unsigned int *cnt) +static int wait_for_partner(struct pipe_inode_info *pipe, unsigned int *cnt) { int cur = *cnt; while (cur == *cnt) { - pipe_wait(inode->i_pipe); + pipe_wait(pipe); if (signal_pending(current)) break; } return cur == *cnt ? -ERESTARTSYS : 0; } -static void wake_up_partner(struct inode* inode) +static void wake_up_partner(struct pipe_inode_info *pipe) { - wake_up_interruptible(&inode->i_pipe->wait); + wake_up_interruptible(&pipe->wait); } static int fifo_open(struct inode *inode, struct file *filp) @@ -1032,7 +1032,7 @@ static int fifo_open(struct inode *inode, struct file *filp) */ pipe->r_counter++; if (pipe->readers++ == 0) - wake_up_partner(inode); + wake_up_partner(pipe); if (!is_pipe && !pipe->writers) { if ((filp->f_flags & O_NONBLOCK)) { @@ -1040,7 +1040,7 @@ static int fifo_open(struct inode *inode, struct file *filp) * seen a writer */ filp->f_version = pipe->w_counter; } else { - if (wait_for_partner(inode, &pipe->w_counter)) + if (wait_for_partner(pipe, &pipe->w_counter)) goto err_rd; } } @@ -1058,10 +1058,10 @@ static int fifo_open(struct inode *inode, struct file *filp) pipe->w_counter++; if (!pipe->writers++) - wake_up_partner(inode); + wake_up_partner(pipe); if (!is_pipe && !pipe->readers) { - if (wait_for_partner(inode, &pipe->r_counter)) + if (wait_for_partner(pipe, &pipe->r_counter)) goto err_wr; } break; @@ -1079,7 +1079,7 @@ static int fifo_open(struct inode *inode, struct file *filp) pipe->r_counter++; pipe->w_counter++; if (pipe->readers == 1 || pipe->writers == 1) - wake_up_partner(inode); + wake_up_partner(pipe); break; default: From 18c03cfd403b88852f75f200206983ee6df28423 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 21 Mar 2013 02:16:30 -0400 Subject: [PATCH 019/204] pipe: preparation to new locking rules * use the fact that file_inode(file)->i_pipe doesn't change while the file is opened - no locks needed to access that. * switch to pipe_lock/pipe_unlock where it's easy to do Signed-off-by: Al Viro --- fs/pipe.c | 38 +++++++++++++++----------------------- 1 file changed, 15 insertions(+), 23 deletions(-) diff --git a/fs/pipe.c b/fs/pipe.c index 105b0021b075..357471db890d 100644 --- a/fs/pipe.c +++ b/fs/pipe.c @@ -363,8 +363,7 @@ pipe_read(struct kiocb *iocb, const struct iovec *_iov, unsigned long nr_segs, loff_t pos) { struct file *filp = iocb->ki_filp; - struct inode *inode = file_inode(filp); - struct pipe_inode_info *pipe; + struct pipe_inode_info *pipe = file_inode(filp)->i_pipe; int do_wakeup; ssize_t ret; struct iovec *iov = (struct iovec *)_iov; @@ -377,8 +376,7 @@ pipe_read(struct kiocb *iocb, const struct iovec *_iov, do_wakeup = 0; ret = 0; - mutex_lock(&inode->i_mutex); - pipe = inode->i_pipe; + pipe_lock(pipe); for (;;) { int bufs = pipe->nrbufs; if (bufs) { @@ -466,7 +464,7 @@ pipe_read(struct kiocb *iocb, const struct iovec *_iov, } pipe_wait(pipe); } - mutex_unlock(&inode->i_mutex); + pipe_unlock(pipe); /* Signal writers asynchronously that there is more room. */ if (do_wakeup) { @@ -488,8 +486,7 @@ pipe_write(struct kiocb *iocb, const struct iovec *_iov, unsigned long nr_segs, loff_t ppos) { struct file *filp = iocb->ki_filp; - struct inode *inode = file_inode(filp); - struct pipe_inode_info *pipe; + struct pipe_inode_info *pipe = file_inode(filp)->i_pipe; ssize_t ret; int do_wakeup; struct iovec *iov = (struct iovec *)_iov; @@ -503,8 +500,7 @@ pipe_write(struct kiocb *iocb, const struct iovec *_iov, do_wakeup = 0; ret = 0; - mutex_lock(&inode->i_mutex); - pipe = inode->i_pipe; + pipe_lock(pipe); if (!pipe->readers) { send_sig(SIGPIPE, current, 0); @@ -651,7 +647,7 @@ pipe_write(struct kiocb *iocb, const struct iovec *_iov, pipe->waiting_writers--; } out: - mutex_unlock(&inode->i_mutex); + pipe_unlock(pipe); if (do_wakeup) { wake_up_interruptible_sync_poll(&pipe->wait, POLLIN | POLLRDNORM); kill_fasync(&pipe->fasync_readers, SIGIO, POLL_IN); @@ -666,14 +662,12 @@ pipe_write(struct kiocb *iocb, const struct iovec *_iov, static long pipe_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) { - struct inode *inode = file_inode(filp); - struct pipe_inode_info *pipe; + struct pipe_inode_info *pipe = file_inode(filp)->i_pipe; int count, buf, nrbufs; switch (cmd) { case FIONREAD: - mutex_lock(&inode->i_mutex); - pipe = inode->i_pipe; + pipe_lock(pipe); count = 0; buf = pipe->curbuf; nrbufs = pipe->nrbufs; @@ -681,7 +675,7 @@ static long pipe_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) count += pipe->bufs[buf].len; buf = (buf+1) & (pipe->buffers - 1); } - mutex_unlock(&inode->i_mutex); + pipe_unlock(pipe); return put_user(count, (int __user *)arg); default: @@ -694,8 +688,7 @@ static unsigned int pipe_poll(struct file *filp, poll_table *wait) { unsigned int mask; - struct inode *inode = file_inode(filp); - struct pipe_inode_info *pipe = inode->i_pipe; + struct pipe_inode_info *pipe = file_inode(filp)->i_pipe; int nrbufs; poll_wait(filp, &pipe->wait, wait); @@ -749,11 +742,10 @@ pipe_release(struct inode *inode, struct file *file) static int pipe_fasync(int fd, struct file *filp, int on) { - struct inode *inode = file_inode(filp); - struct pipe_inode_info *pipe = inode->i_pipe; + struct pipe_inode_info *pipe = file_inode(filp)->i_pipe; int retval = 0; - mutex_lock(&inode->i_mutex); + pipe_lock(pipe); if (filp->f_mode & FMODE_READ) retval = fasync_helper(fd, filp, on, &pipe->fasync_readers); if ((filp->f_mode & FMODE_WRITE) && retval >= 0) { @@ -762,7 +754,7 @@ pipe_fasync(int fd, struct file *filp, int on) /* this can happen only if on == T */ fasync_helper(-1, filp, 0, &pipe->fasync_readers); } - mutex_unlock(&inode->i_mutex); + pipe_unlock(pipe); return retval; } @@ -1224,7 +1216,7 @@ long pipe_fcntl(struct file *file, unsigned int cmd, unsigned long arg) if (!pipe) return -EBADF; - mutex_lock(&pipe->inode->i_mutex); + pipe_lock(pipe); switch (cmd) { case F_SETPIPE_SZ: { @@ -1253,7 +1245,7 @@ long pipe_fcntl(struct file *file, unsigned int cmd, unsigned long arg) } out: - mutex_unlock(&pipe->inode->i_mutex); + pipe_unlock(pipe); return ret; } From ba5bb147330a8737b6b5a812cc774c79c070704b Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 21 Mar 2013 02:21:19 -0400 Subject: [PATCH 020/204] pipe: take allocation and freeing of pipe_inode_info out of ->i_mutex * new field - pipe->files; number of struct file over that pipe (all sharing the same inode, of course); protected by inode->i_lock. * pipe_release() decrements pipe->files, clears inode->i_pipe when if the counter has reached 0 (all under ->i_lock) and, in that case, frees pipe after having done pipe_unlock() * fifo_open() starts with grabbing ->i_lock, and either bumps pipe->files if ->i_pipe was non-NULL or allocates a new pipe (dropping and regaining ->i_lock) and rechecks ->i_pipe; if it's still NULL, inserts new pipe there, otherwise bumps ->i_pipe->files and frees the one we'd allocated. At that point we know that ->i_pipe is non-NULL and won't go away, so we can do pipe_lock() on it and proceed as we used to. If we end up failing, decrement pipe->files and if it reaches 0 clear ->i_pipe and free the sucker after pipe_unlock(). Signed-off-by: Al Viro --- fs/pipe.c | 72 +++++++++++++++++++++++++++------------ include/linux/pipe_fs_i.h | 2 ++ 2 files changed, 53 insertions(+), 21 deletions(-) diff --git a/fs/pipe.c b/fs/pipe.c index 357471db890d..abaa9234d27b 100644 --- a/fs/pipe.c +++ b/fs/pipe.c @@ -718,23 +718,30 @@ pipe_poll(struct file *filp, poll_table *wait) static int pipe_release(struct inode *inode, struct file *file) { - struct pipe_inode_info *pipe; + struct pipe_inode_info *pipe = inode->i_pipe; + int kill = 0; - mutex_lock(&inode->i_mutex); - pipe = inode->i_pipe; + pipe_lock(pipe); if (file->f_mode & FMODE_READ) pipe->readers--; if (file->f_mode & FMODE_WRITE) pipe->writers--; - if (!pipe->readers && !pipe->writers) { - free_pipe_info(inode); - } else { + if (pipe->readers || pipe->writers) { wake_up_interruptible_sync_poll(&pipe->wait, POLLIN | POLLOUT | POLLRDNORM | POLLWRNORM | POLLERR | POLLHUP); kill_fasync(&pipe->fasync_readers, SIGIO, POLL_IN); kill_fasync(&pipe->fasync_writers, SIGIO, POLL_OUT); } - mutex_unlock(&inode->i_mutex); + spin_lock(&inode->i_lock); + if (!--pipe->files) { + inode->i_pipe = NULL; + kill = 1; + } + spin_unlock(&inode->i_lock); + pipe_unlock(pipe); + + if (kill) + __free_pipe_info(pipe); return 0; } @@ -827,8 +834,9 @@ static struct inode * get_pipe_inode(void) pipe = alloc_pipe_info(inode); if (!pipe) goto fail_iput; - inode->i_pipe = pipe; + inode->i_pipe = pipe; + pipe->files = 2; pipe->readers = pipe->writers = 1; inode->i_fop = &pipefifo_fops; @@ -999,18 +1007,36 @@ static int fifo_open(struct inode *inode, struct file *filp) { struct pipe_inode_info *pipe; bool is_pipe = inode->i_sb->s_magic == PIPEFS_MAGIC; + int kill = 0; int ret; - mutex_lock(&inode->i_mutex); - pipe = inode->i_pipe; - if (!pipe) { - ret = -ENOMEM; + filp->f_version = 0; + + spin_lock(&inode->i_lock); + if (inode->i_pipe) { + pipe = inode->i_pipe; + pipe->files++; + spin_unlock(&inode->i_lock); + } else { + spin_unlock(&inode->i_lock); pipe = alloc_pipe_info(inode); if (!pipe) - goto err_nocleanup; - inode->i_pipe = pipe; + return -ENOMEM; + pipe->files = 1; + spin_lock(&inode->i_lock); + if (unlikely(inode->i_pipe)) { + inode->i_pipe->files++; + spin_unlock(&inode->i_lock); + __free_pipe_info(pipe); + pipe = inode->i_pipe; + } else { + inode->i_pipe = pipe; + spin_unlock(&inode->i_lock); + } } - filp->f_version = 0; + /* OK, we have a pipe and it's pinned down */ + + pipe_lock(pipe); /* We can only do regular read/write on fifos */ filp->f_mode &= (FMODE_READ | FMODE_WRITE); @@ -1080,7 +1106,7 @@ static int fifo_open(struct inode *inode, struct file *filp) } /* Ok! */ - mutex_unlock(&inode->i_mutex); + pipe_unlock(pipe); return 0; err_rd: @@ -1096,11 +1122,15 @@ static int fifo_open(struct inode *inode, struct file *filp) goto err; err: - if (!pipe->readers && !pipe->writers) - free_pipe_info(inode); - -err_nocleanup: - mutex_unlock(&inode->i_mutex); + spin_lock(&inode->i_lock); + if (!--pipe->files) { + inode->i_pipe = NULL; + kill = 1; + } + spin_unlock(&inode->i_lock); + pipe_unlock(pipe); + if (kill) + __free_pipe_info(pipe); return ret; } diff --git a/include/linux/pipe_fs_i.h b/include/linux/pipe_fs_i.h index ad1a427b5267..59778e1c9c08 100644 --- a/include/linux/pipe_fs_i.h +++ b/include/linux/pipe_fs_i.h @@ -34,6 +34,7 @@ struct pipe_buffer { * @tmp_page: cached released page * @readers: number of current readers of this pipe * @writers: number of current writers of this pipe + * @files: number of struct file refering this pipe (protected by ->i_lock) * @waiting_writers: number of writers blocked waiting for room * @r_counter: reader counter * @w_counter: writer counter @@ -47,6 +48,7 @@ struct pipe_inode_info { unsigned int nrbufs, curbuf, buffers; unsigned int readers; unsigned int writers; + unsigned int files; unsigned int waiting_writers; unsigned int r_counter; unsigned int w_counter; From 72b0d9aacb89f3759931ec440e1b535671145bb4 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 21 Mar 2013 02:32:24 -0400 Subject: [PATCH 021/204] pipe: don't use ->i_mutex now it can be done - put mutex into pipe_inode_info, use it instead of ->i_mutex Signed-off-by: Al Viro --- fs/ocfs2/file.c | 6 ++---- fs/pipe.c | 5 +++-- include/linux/pipe_fs_i.h | 2 ++ 3 files changed, 7 insertions(+), 6 deletions(-) diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c index 1c93e771e950..8a7509f9e6f5 100644 --- a/fs/ocfs2/file.c +++ b/fs/ocfs2/file.c @@ -2465,8 +2465,7 @@ static ssize_t ocfs2_file_splice_write(struct pipe_inode_info *pipe, out->f_path.dentry->d_name.len, out->f_path.dentry->d_name.name, len); - if (pipe->inode) - mutex_lock_nested(&pipe->inode->i_mutex, I_MUTEX_PARENT); + pipe_lock(pipe); splice_from_pipe_begin(&sd); do { @@ -2486,8 +2485,7 @@ static ssize_t ocfs2_file_splice_write(struct pipe_inode_info *pipe, } while (ret > 0); splice_from_pipe_end(pipe, &sd); - if (pipe->inode) - mutex_unlock(&pipe->inode->i_mutex); + pipe_unlock(pipe); if (sd.num_spliced) ret = sd.num_spliced; diff --git a/fs/pipe.c b/fs/pipe.c index abaa9234d27b..d4b97e4e37c5 100644 --- a/fs/pipe.c +++ b/fs/pipe.c @@ -56,7 +56,7 @@ unsigned int pipe_min_size = PAGE_SIZE; static void pipe_lock_nested(struct pipe_inode_info *pipe, int subclass) { if (pipe->inode) - mutex_lock_nested(&pipe->inode->i_mutex, subclass); + mutex_lock_nested(&pipe->mutex, subclass); } void pipe_lock(struct pipe_inode_info *pipe) @@ -71,7 +71,7 @@ EXPORT_SYMBOL(pipe_lock); void pipe_unlock(struct pipe_inode_info *pipe) { if (pipe->inode) - mutex_unlock(&pipe->inode->i_mutex); + mutex_unlock(&pipe->mutex); } EXPORT_SYMBOL(pipe_unlock); @@ -777,6 +777,7 @@ struct pipe_inode_info * alloc_pipe_info(struct inode *inode) pipe->r_counter = pipe->w_counter = 1; pipe->inode = inode; pipe->buffers = PIPE_DEF_BUFFERS; + mutex_init(&pipe->mutex); return pipe; } kfree(pipe); diff --git a/include/linux/pipe_fs_i.h b/include/linux/pipe_fs_i.h index 59778e1c9c08..d803a85a64b6 100644 --- a/include/linux/pipe_fs_i.h +++ b/include/linux/pipe_fs_i.h @@ -27,6 +27,7 @@ struct pipe_buffer { /** * struct pipe_inode_info - a linux kernel pipe + * @mutex: mutex protecting the whole thing * @wait: reader/writer wait point in case of empty/full pipe * @nrbufs: the number of non-empty pipe buffers in this pipe * @buffers: total number of buffers (should be a power of 2) @@ -44,6 +45,7 @@ struct pipe_buffer { * @bufs: the circular array of pipe buffers **/ struct pipe_inode_info { + struct mutex mutex; wait_queue_head_t wait; unsigned int nrbufs, curbuf, buffers; unsigned int readers; From de32ec4cfeb3b3afd2abf5116068deace10e420f Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 21 Mar 2013 11:16:56 -0400 Subject: [PATCH 022/204] pipe: set file->private_data to ->i_pipe simplify get_pipe_info(), while we are at it Signed-off-by: Al Viro --- fs/coredump.c | 4 +--- fs/pipe.c | 17 +++++++++-------- 2 files changed, 10 insertions(+), 11 deletions(-) diff --git a/fs/coredump.c b/fs/coredump.c index 288e5c9f9bbe..a987f3d39d93 100644 --- a/fs/coredump.c +++ b/fs/coredump.c @@ -409,9 +409,7 @@ static void coredump_finish(struct mm_struct *mm) static void wait_for_dump_helpers(struct file *file) { - struct pipe_inode_info *pipe; - - pipe = file_inode(file)->i_pipe; + struct pipe_inode_info *pipe = file->private_data; pipe_lock(pipe); pipe->readers++; diff --git a/fs/pipe.c b/fs/pipe.c index d4b97e4e37c5..161b2099a7af 100644 --- a/fs/pipe.c +++ b/fs/pipe.c @@ -363,7 +363,7 @@ pipe_read(struct kiocb *iocb, const struct iovec *_iov, unsigned long nr_segs, loff_t pos) { struct file *filp = iocb->ki_filp; - struct pipe_inode_info *pipe = file_inode(filp)->i_pipe; + struct pipe_inode_info *pipe = filp->private_data; int do_wakeup; ssize_t ret; struct iovec *iov = (struct iovec *)_iov; @@ -486,7 +486,7 @@ pipe_write(struct kiocb *iocb, const struct iovec *_iov, unsigned long nr_segs, loff_t ppos) { struct file *filp = iocb->ki_filp; - struct pipe_inode_info *pipe = file_inode(filp)->i_pipe; + struct pipe_inode_info *pipe = filp->private_data; ssize_t ret; int do_wakeup; struct iovec *iov = (struct iovec *)_iov; @@ -662,7 +662,7 @@ pipe_write(struct kiocb *iocb, const struct iovec *_iov, static long pipe_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) { - struct pipe_inode_info *pipe = file_inode(filp)->i_pipe; + struct pipe_inode_info *pipe = filp->private_data; int count, buf, nrbufs; switch (cmd) { @@ -688,7 +688,7 @@ static unsigned int pipe_poll(struct file *filp, poll_table *wait) { unsigned int mask; - struct pipe_inode_info *pipe = file_inode(filp)->i_pipe; + struct pipe_inode_info *pipe = filp->private_data; int nrbufs; poll_wait(filp, &pipe->wait, wait); @@ -749,7 +749,7 @@ pipe_release(struct inode *inode, struct file *file) static int pipe_fasync(int fd, struct file *filp, int on) { - struct pipe_inode_info *pipe = file_inode(filp)->i_pipe; + struct pipe_inode_info *pipe = filp->private_data; int retval = 0; pipe_lock(pipe); @@ -887,12 +887,14 @@ int create_pipe_files(struct file **res, int flags) goto err_dentry; f->f_flags = O_WRONLY | (flags & (O_NONBLOCK | O_DIRECT)); + f->private_data = inode->i_pipe; res[0] = alloc_file(&path, FMODE_READ, &pipefifo_fops); if (IS_ERR(res[0])) goto err_file; path_get(&path); + res[0]->private_data = inode->i_pipe; res[0]->f_flags = O_RDONLY | (flags & O_NONBLOCK); res[1] = f; return 0; @@ -1035,6 +1037,7 @@ static int fifo_open(struct inode *inode, struct file *filp) spin_unlock(&inode->i_lock); } } + filp->private_data = pipe; /* OK, we have a pipe and it's pinned down */ pipe_lock(pipe); @@ -1233,9 +1236,7 @@ int pipe_proc_fn(struct ctl_table *table, int write, void __user *buf, */ struct pipe_inode_info *get_pipe_info(struct file *file) { - struct inode *i = file_inode(file); - - return S_ISFIFO(i->i_mode) ? i->i_pipe : NULL; + return file->f_op == &pipefifo_fops ? file->private_data : NULL; } long pipe_fcntl(struct file *file, unsigned int cmd, unsigned long arg) From ebec73f4752b777b79b384bd52e5240203cb9b00 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 21 Mar 2013 12:24:01 -0400 Subject: [PATCH 023/204] introduce variants of pipe_lock/pipe_unlock for real pipes/FIFOs fs/pipe.c file_operations methods *know* that pipe is not an internal one; no need to check pipe->inode for those callers. Signed-off-by: Al Viro --- fs/pipe.c | 40 +++++++++++++++++++++++++--------------- 1 file changed, 25 insertions(+), 15 deletions(-) diff --git a/fs/pipe.c b/fs/pipe.c index 161b2099a7af..e2fc5ccb0d49 100644 --- a/fs/pipe.c +++ b/fs/pipe.c @@ -75,6 +75,16 @@ void pipe_unlock(struct pipe_inode_info *pipe) } EXPORT_SYMBOL(pipe_unlock); +static inline void __pipe_lock(struct pipe_inode_info *pipe) +{ + mutex_lock_nested(&pipe->mutex, I_MUTEX_PARENT); +} + +static inline void __pipe_unlock(struct pipe_inode_info *pipe) +{ + mutex_unlock(&pipe->mutex); +} + void pipe_double_lock(struct pipe_inode_info *pipe1, struct pipe_inode_info *pipe2) { @@ -376,7 +386,7 @@ pipe_read(struct kiocb *iocb, const struct iovec *_iov, do_wakeup = 0; ret = 0; - pipe_lock(pipe); + __pipe_lock(pipe); for (;;) { int bufs = pipe->nrbufs; if (bufs) { @@ -464,7 +474,7 @@ pipe_read(struct kiocb *iocb, const struct iovec *_iov, } pipe_wait(pipe); } - pipe_unlock(pipe); + __pipe_unlock(pipe); /* Signal writers asynchronously that there is more room. */ if (do_wakeup) { @@ -500,7 +510,7 @@ pipe_write(struct kiocb *iocb, const struct iovec *_iov, do_wakeup = 0; ret = 0; - pipe_lock(pipe); + __pipe_lock(pipe); if (!pipe->readers) { send_sig(SIGPIPE, current, 0); @@ -647,7 +657,7 @@ pipe_write(struct kiocb *iocb, const struct iovec *_iov, pipe->waiting_writers--; } out: - pipe_unlock(pipe); + __pipe_unlock(pipe); if (do_wakeup) { wake_up_interruptible_sync_poll(&pipe->wait, POLLIN | POLLRDNORM); kill_fasync(&pipe->fasync_readers, SIGIO, POLL_IN); @@ -667,7 +677,7 @@ static long pipe_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) switch (cmd) { case FIONREAD: - pipe_lock(pipe); + __pipe_lock(pipe); count = 0; buf = pipe->curbuf; nrbufs = pipe->nrbufs; @@ -675,7 +685,7 @@ static long pipe_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) count += pipe->bufs[buf].len; buf = (buf+1) & (pipe->buffers - 1); } - pipe_unlock(pipe); + __pipe_unlock(pipe); return put_user(count, (int __user *)arg); default: @@ -721,7 +731,7 @@ pipe_release(struct inode *inode, struct file *file) struct pipe_inode_info *pipe = inode->i_pipe; int kill = 0; - pipe_lock(pipe); + __pipe_lock(pipe); if (file->f_mode & FMODE_READ) pipe->readers--; if (file->f_mode & FMODE_WRITE) @@ -738,7 +748,7 @@ pipe_release(struct inode *inode, struct file *file) kill = 1; } spin_unlock(&inode->i_lock); - pipe_unlock(pipe); + __pipe_unlock(pipe); if (kill) __free_pipe_info(pipe); @@ -752,7 +762,7 @@ pipe_fasync(int fd, struct file *filp, int on) struct pipe_inode_info *pipe = filp->private_data; int retval = 0; - pipe_lock(pipe); + __pipe_lock(pipe); if (filp->f_mode & FMODE_READ) retval = fasync_helper(fd, filp, on, &pipe->fasync_readers); if ((filp->f_mode & FMODE_WRITE) && retval >= 0) { @@ -761,7 +771,7 @@ pipe_fasync(int fd, struct file *filp, int on) /* this can happen only if on == T */ fasync_helper(-1, filp, 0, &pipe->fasync_readers); } - pipe_unlock(pipe); + __pipe_unlock(pipe); return retval; } @@ -1040,7 +1050,7 @@ static int fifo_open(struct inode *inode, struct file *filp) filp->private_data = pipe; /* OK, we have a pipe and it's pinned down */ - pipe_lock(pipe); + __pipe_lock(pipe); /* We can only do regular read/write on fifos */ filp->f_mode &= (FMODE_READ | FMODE_WRITE); @@ -1110,7 +1120,7 @@ static int fifo_open(struct inode *inode, struct file *filp) } /* Ok! */ - pipe_unlock(pipe); + __pipe_unlock(pipe); return 0; err_rd: @@ -1132,7 +1142,7 @@ static int fifo_open(struct inode *inode, struct file *filp) kill = 1; } spin_unlock(&inode->i_lock); - pipe_unlock(pipe); + __pipe_unlock(pipe); if (kill) __free_pipe_info(pipe); return ret; @@ -1248,7 +1258,7 @@ long pipe_fcntl(struct file *file, unsigned int cmd, unsigned long arg) if (!pipe) return -EBADF; - pipe_lock(pipe); + __pipe_lock(pipe); switch (cmd) { case F_SETPIPE_SZ: { @@ -1277,7 +1287,7 @@ long pipe_fcntl(struct file *file, unsigned int cmd, unsigned long arg) } out: - pipe_unlock(pipe); + __pipe_unlock(pipe); return ret; } From 6447a3cf19da8c4653283d1c491e2e775633f348 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 21 Mar 2013 11:01:38 -0400 Subject: [PATCH 024/204] get rid of pipe->inode it's used only as a flag to distinguish normal pipes/FIFOs from the internal per-task one used by file-to-file splice. And pipe->files would work just as well for that purpose... Signed-off-by: Al Viro --- fs/fuse/dev.c | 2 +- fs/pipe.c | 5 ++--- fs/splice.c | 4 ++-- include/linux/pipe_fs_i.h | 2 -- 4 files changed, 5 insertions(+), 8 deletions(-) diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c index 11dfa0c3fb46..9bfd1a3214e6 100644 --- a/fs/fuse/dev.c +++ b/fs/fuse/dev.c @@ -1319,7 +1319,7 @@ static ssize_t fuse_dev_splice_read(struct file *in, loff_t *ppos, page_nr++; ret += buf->len; - if (pipe->inode) + if (pipe->files) do_wakeup = 1; } diff --git a/fs/pipe.c b/fs/pipe.c index e2fc5ccb0d49..39bdec06fe2b 100644 --- a/fs/pipe.c +++ b/fs/pipe.c @@ -55,7 +55,7 @@ unsigned int pipe_min_size = PAGE_SIZE; static void pipe_lock_nested(struct pipe_inode_info *pipe, int subclass) { - if (pipe->inode) + if (pipe->files) mutex_lock_nested(&pipe->mutex, subclass); } @@ -70,7 +70,7 @@ EXPORT_SYMBOL(pipe_lock); void pipe_unlock(struct pipe_inode_info *pipe) { - if (pipe->inode) + if (pipe->files) mutex_unlock(&pipe->mutex); } EXPORT_SYMBOL(pipe_unlock); @@ -785,7 +785,6 @@ struct pipe_inode_info * alloc_pipe_info(struct inode *inode) if (pipe->bufs) { init_waitqueue_head(&pipe->wait); pipe->r_counter = pipe->w_counter = 1; - pipe->inode = inode; pipe->buffers = PIPE_DEF_BUFFERS; mutex_init(&pipe->mutex); return pipe; diff --git a/fs/splice.c b/fs/splice.c index 7efc2f5057fb..9f2a4447da50 100644 --- a/fs/splice.c +++ b/fs/splice.c @@ -218,7 +218,7 @@ ssize_t splice_to_pipe(struct pipe_inode_info *pipe, page_nr++; ret += buf->len; - if (pipe->inode) + if (pipe->files) do_wakeup = 1; if (!--spd->nr_pages) @@ -828,7 +828,7 @@ int splice_from_pipe_feed(struct pipe_inode_info *pipe, struct splice_desc *sd, ops->release(pipe, buf); pipe->curbuf = (pipe->curbuf + 1) & (pipe->buffers - 1); pipe->nrbufs--; - if (pipe->inode) + if (pipe->files) sd->need_wakeup = true; } diff --git a/include/linux/pipe_fs_i.h b/include/linux/pipe_fs_i.h index d803a85a64b6..ed8eeeb10811 100644 --- a/include/linux/pipe_fs_i.h +++ b/include/linux/pipe_fs_i.h @@ -41,7 +41,6 @@ struct pipe_buffer { * @w_counter: writer counter * @fasync_readers: reader side fasync * @fasync_writers: writer side fasync - * @inode: inode this pipe is attached to * @bufs: the circular array of pipe buffers **/ struct pipe_inode_info { @@ -57,7 +56,6 @@ struct pipe_inode_info { struct page *tmp_page; struct fasync_struct *fasync_readers; struct fasync_struct *fasync_writers; - struct inode *inode; struct pipe_buffer *bufs; }; From 7bee130e222dfb3a7a70c0404dc09f104cddd7d6 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 21 Mar 2013 11:04:15 -0400 Subject: [PATCH 025/204] get rid of alloc_pipe_info() argument not used anymore Signed-off-by: Al Viro --- fs/pipe.c | 6 +++--- fs/splice.c | 2 +- include/linux/pipe_fs_i.h | 2 +- 3 files changed, 5 insertions(+), 5 deletions(-) diff --git a/fs/pipe.c b/fs/pipe.c index 39bdec06fe2b..6cac5ceeded0 100644 --- a/fs/pipe.c +++ b/fs/pipe.c @@ -775,7 +775,7 @@ pipe_fasync(int fd, struct file *filp, int on) return retval; } -struct pipe_inode_info * alloc_pipe_info(struct inode *inode) +struct pipe_inode_info *alloc_pipe_info(void) { struct pipe_inode_info *pipe; @@ -841,7 +841,7 @@ static struct inode * get_pipe_inode(void) inode->i_ino = get_next_ino(); - pipe = alloc_pipe_info(inode); + pipe = alloc_pipe_info(); if (!pipe) goto fail_iput; @@ -1031,7 +1031,7 @@ static int fifo_open(struct inode *inode, struct file *filp) spin_unlock(&inode->i_lock); } else { spin_unlock(&inode->i_lock); - pipe = alloc_pipe_info(inode); + pipe = alloc_pipe_info(); if (!pipe) return -ENOMEM; pipe->files = 1; diff --git a/fs/splice.c b/fs/splice.c index 9f2a4447da50..45e645b15d92 100644 --- a/fs/splice.c +++ b/fs/splice.c @@ -1183,7 +1183,7 @@ ssize_t splice_direct_to_actor(struct file *in, struct splice_desc *sd, */ pipe = current->splice_pipe; if (unlikely(!pipe)) { - pipe = alloc_pipe_info(NULL); + pipe = alloc_pipe_info(); if (!pipe) return -ENOMEM; diff --git a/include/linux/pipe_fs_i.h b/include/linux/pipe_fs_i.h index ed8eeeb10811..765114f16243 100644 --- a/include/linux/pipe_fs_i.h +++ b/include/linux/pipe_fs_i.h @@ -146,7 +146,7 @@ int pipe_proc_fn(struct ctl_table *, int, void __user *, size_t *, loff_t *); /* Drop the inode semaphore and wait for a pipe event, atomically */ void pipe_wait(struct pipe_inode_info *pipe); -struct pipe_inode_info * alloc_pipe_info(struct inode * inode); +struct pipe_inode_info *alloc_pipe_info(void); void free_pipe_info(struct inode * inode); void __free_pipe_info(struct pipe_inode_info *); From 4b8a8f1e4f94fd87747e6e3acef74cf0b4dc0dae Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 21 Mar 2013 11:06:46 -0400 Subject: [PATCH 026/204] get rid of the last free_pipe_info() callers and rename __free_pipe_info() to free_pipe_info() Signed-off-by: Al Viro --- fs/pipe.c | 18 ++++++------------ include/linux/pipe_fs_i.h | 3 +-- kernel/exit.c | 2 +- 3 files changed, 8 insertions(+), 15 deletions(-) diff --git a/fs/pipe.c b/fs/pipe.c index 6cac5ceeded0..a029a14bacf1 100644 --- a/fs/pipe.c +++ b/fs/pipe.c @@ -751,7 +751,7 @@ pipe_release(struct inode *inode, struct file *file) __pipe_unlock(pipe); if (kill) - __free_pipe_info(pipe); + free_pipe_info(pipe); return 0; } @@ -795,7 +795,7 @@ struct pipe_inode_info *alloc_pipe_info(void) return NULL; } -void __free_pipe_info(struct pipe_inode_info *pipe) +void free_pipe_info(struct pipe_inode_info *pipe) { int i; @@ -810,12 +810,6 @@ void __free_pipe_info(struct pipe_inode_info *pipe) kfree(pipe); } -void free_pipe_info(struct inode *inode) -{ - __free_pipe_info(inode->i_pipe); - inode->i_pipe = NULL; -} - static struct vfsmount *pipe_mnt __read_mostly; /* @@ -911,12 +905,12 @@ int create_pipe_files(struct file **res, int flags) err_file: put_filp(f); err_dentry: - free_pipe_info(inode); + free_pipe_info(inode->i_pipe); path_put(&path); return err; err_inode: - free_pipe_info(inode); + free_pipe_info(inode->i_pipe); iput(inode); return err; } @@ -1039,7 +1033,7 @@ static int fifo_open(struct inode *inode, struct file *filp) if (unlikely(inode->i_pipe)) { inode->i_pipe->files++; spin_unlock(&inode->i_lock); - __free_pipe_info(pipe); + free_pipe_info(pipe); pipe = inode->i_pipe; } else { inode->i_pipe = pipe; @@ -1143,7 +1137,7 @@ static int fifo_open(struct inode *inode, struct file *filp) spin_unlock(&inode->i_lock); __pipe_unlock(pipe); if (kill) - __free_pipe_info(pipe); + free_pipe_info(pipe); return ret; } diff --git a/include/linux/pipe_fs_i.h b/include/linux/pipe_fs_i.h index 765114f16243..b8809fef61f5 100644 --- a/include/linux/pipe_fs_i.h +++ b/include/linux/pipe_fs_i.h @@ -147,8 +147,7 @@ int pipe_proc_fn(struct ctl_table *, int, void __user *, size_t *, loff_t *); void pipe_wait(struct pipe_inode_info *pipe); struct pipe_inode_info *alloc_pipe_info(void); -void free_pipe_info(struct inode * inode); -void __free_pipe_info(struct pipe_inode_info *); +void free_pipe_info(struct pipe_inode_info *); /* Generic pipe buffer ops functions */ void *generic_pipe_buf_map(struct pipe_inode_info *, struct pipe_buffer *, int); diff --git a/kernel/exit.c b/kernel/exit.c index 51e485ca9935..cd9e9e799bd2 100644 --- a/kernel/exit.c +++ b/kernel/exit.c @@ -847,7 +847,7 @@ void do_exit(long code) exit_io_context(tsk); if (tsk->splice_pipe) - __free_pipe_info(tsk->splice_pipe); + free_pipe_info(tsk->splice_pipe); if (tsk->task_frag.page) put_page(tsk->task_frag.page); From 0b57b880e61cd764479d9e7818d0d1e45062d08b Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 28 Mar 2013 12:45:40 -0400 Subject: [PATCH 027/204] spufs: don't bother with fops->owner filesystem module as whole is pinned down by its superblock, no need to have opened files on it to add anything to that. Signed-off-by: Al Viro --- arch/powerpc/platforms/cell/spufs/file.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/arch/powerpc/platforms/cell/spufs/file.c b/arch/powerpc/platforms/cell/spufs/file.c index 68c57d38745a..d43d2d0b90e3 100644 --- a/arch/powerpc/platforms/cell/spufs/file.c +++ b/arch/powerpc/platforms/cell/spufs/file.c @@ -149,7 +149,6 @@ static int __fops ## _open(struct inode *inode, struct file *file) \ return spufs_attr_open(inode, file, __get, __set, __fmt); \ } \ static const struct file_operations __fops = { \ - .owner = THIS_MODULE, \ .open = __fops ## _open, \ .release = spufs_attr_release, \ .read = spufs_attr_read, \ @@ -2591,7 +2590,6 @@ static unsigned int spufs_switch_log_poll(struct file *file, poll_table *wait) } static const struct file_operations spufs_switch_log_fops = { - .owner = THIS_MODULE, .open = spufs_switch_log_open, .read = spufs_switch_log_read, .poll = spufs_switch_log_poll, From c62c5a887766de7dc51f7722ff461aef8f388b71 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 28 Mar 2013 13:00:31 -0400 Subject: [PATCH 028/204] ccg: don't bother with fops->owner filesystem module as whole is pinned down by its superblock, no need to have opened files on it to add anything to that. Signed-off-by: Al Viro --- drivers/staging/ccg/f_fs.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/staging/ccg/f_fs.c b/drivers/staging/ccg/f_fs.c index f6373dade7fb..e82b1cdfd189 100644 --- a/drivers/staging/ccg/f_fs.c +++ b/drivers/staging/ccg/f_fs.c @@ -723,7 +723,6 @@ static long ffs_ep0_ioctl(struct file *file, unsigned code, unsigned long value) } static const struct file_operations ffs_ep0_operations = { - .owner = THIS_MODULE, .llseek = no_llseek, .open = ffs_ep0_open, @@ -943,7 +942,6 @@ static long ffs_epfile_ioctl(struct file *file, unsigned code, } static const struct file_operations ffs_epfile_operations = { - .owner = THIS_MODULE, .llseek = no_llseek, .open = ffs_epfile_open, From 3273097ee9c077512bcb017535b0781f1e1f7a6d Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 28 Mar 2013 13:12:32 -0400 Subject: [PATCH 029/204] gadgetfs: don't bother with fops->owner filesystem module as whole is pinned down by its superblock, no need to have opened files on it to add anything to that. Signed-off-by: Al Viro --- drivers/usb/gadget/f_fs.c | 2 -- drivers/usb/gadget/inode.c | 2 -- 2 files changed, 4 deletions(-) diff --git a/drivers/usb/gadget/f_fs.c b/drivers/usb/gadget/f_fs.c index c377ff84bf2c..f394f295d63d 100644 --- a/drivers/usb/gadget/f_fs.c +++ b/drivers/usb/gadget/f_fs.c @@ -727,7 +727,6 @@ static long ffs_ep0_ioctl(struct file *file, unsigned code, unsigned long value) } static const struct file_operations ffs_ep0_operations = { - .owner = THIS_MODULE, .llseek = no_llseek, .open = ffs_ep0_open, @@ -947,7 +946,6 @@ static long ffs_epfile_ioctl(struct file *file, unsigned code, } static const struct file_operations ffs_epfile_operations = { - .owner = THIS_MODULE, .llseek = no_llseek, .open = ffs_epfile_open, diff --git a/drivers/usb/gadget/inode.c b/drivers/usb/gadget/inode.c index e2b2e9cf254a..dda0dc4a5567 100644 --- a/drivers/usb/gadget/inode.c +++ b/drivers/usb/gadget/inode.c @@ -887,7 +887,6 @@ ep_open (struct inode *inode, struct file *fd) /* used before endpoint configuration */ static const struct file_operations ep_config_operations = { - .owner = THIS_MODULE, .llseek = no_llseek, .open = ep_open, @@ -1940,7 +1939,6 @@ dev_open (struct inode *inode, struct file *fd) } static const struct file_operations dev_init_operations = { - .owner = THIS_MODULE, .llseek = no_llseek, .open = dev_open, From 03b642a7019a8ec28a450fd4c55f3048ce320f6b Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 28 Mar 2013 18:11:13 -0400 Subject: [PATCH 030/204] atags_proc: switch to proc_create_data() Signed-off-by: Al Viro --- arch/arm/kernel/atags_proc.c | 28 ++++++++++------------------ 1 file changed, 10 insertions(+), 18 deletions(-) diff --git a/arch/arm/kernel/atags_proc.c b/arch/arm/kernel/atags_proc.c index 42a1a1415fa6..8c00f75bf1ab 100644 --- a/arch/arm/kernel/atags_proc.c +++ b/arch/arm/kernel/atags_proc.c @@ -9,24 +9,18 @@ struct buffer { char data[]; }; -static int -read_buffer(char* page, char** start, off_t off, int count, - int* eof, void* data) +static ssize_t atags_read(struct file *file, char __user *buf, + size_t count, loff_t *ppos) { - struct buffer *buffer = (struct buffer *)data; - - if (off >= buffer->size) { - *eof = 1; - return 0; - } - - count = min((int) (buffer->size - off), count); - - memcpy(page, &buffer->data[off], count); - - return count; + struct buffer *b = PDE(file_inode(file))->data; + return simple_read_from_buffer(buf, count, ppos, b->data, b->size); } +static const struct file_operations atags_fops = { + .read = atags_read, + .llseek = default_llseek, +}; + #define BOOT_PARAMS_SIZE 1536 static char __initdata atags_copy[BOOT_PARAMS_SIZE]; @@ -66,9 +60,7 @@ static int __init init_atags_procfs(void) b->size = size; memcpy(b->data, atags_copy, size); - tags_entry = create_proc_read_entry("atags", 0400, - NULL, read_buffer, b); - + tags_entry = proc_create_data("atags", 0400, NULL, &atags_fops, b); if (!tags_entry) goto nomem; From 4d8e8d21de89ff9d86b83182f723129533aacaa9 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 28 Mar 2013 18:56:21 -0400 Subject: [PATCH 031/204] hysdn: stash pointer to card into proc_dir_entry->data no need to search later - we know the card when we are creating procfs entries Signed-off-by: Al Viro --- drivers/isdn/hysdn/hysdn_procconf.c | 32 ++----------- drivers/isdn/hysdn/hysdn_proclog.c | 71 ++++++----------------------- 2 files changed, 18 insertions(+), 85 deletions(-) diff --git a/drivers/isdn/hysdn/hysdn_procconf.c b/drivers/isdn/hysdn/hysdn_procconf.c index 8023d2510fba..dc88bcb25029 100644 --- a/drivers/isdn/hysdn/hysdn_procconf.c +++ b/drivers/isdn/hysdn/hysdn_procconf.c @@ -229,23 +229,12 @@ static int hysdn_conf_open(struct inode *ino, struct file *filep) { hysdn_card *card; - struct proc_dir_entry *pd; struct conf_writedata *cnf; char *cp, *tmp; /* now search the addressed card */ mutex_lock(&hysdn_conf_mutex); - card = card_root; - while (card) { - pd = card->procconf; - if (pd == PDE(ino)) - break; - card = card->next; /* search next entry */ - } - if (!card) { - mutex_unlock(&hysdn_conf_mutex); - return (-ENODEV); /* device is unknown/invalid */ - } + card = PDE(ino)->data; if (card->debug_flags & (LOG_PROC_OPEN | LOG_PROC_ALL)) hysdn_addlog(card, "config open for uid=%d gid=%d mode=0x%x", filep->f_cred->fsuid, filep->f_cred->fsgid, @@ -317,21 +306,9 @@ hysdn_conf_close(struct inode *ino, struct file *filep) hysdn_card *card; struct conf_writedata *cnf; int retval = 0; - struct proc_dir_entry *pd; mutex_lock(&hysdn_conf_mutex); - /* search the addressed card */ - card = card_root; - while (card) { - pd = card->procconf; - if (pd == PDE(ino)) - break; - card = card->next; /* search next entry */ - } - if (!card) { - mutex_unlock(&hysdn_conf_mutex); - return (-ENODEV); /* device is unknown/invalid */ - } + card = PDE(ino)->data; if (card->debug_flags & (LOG_PROC_OPEN | LOG_PROC_ALL)) hysdn_addlog(card, "config close for uid=%d gid=%d mode=0x%x", filep->f_cred->fsuid, filep->f_cred->fsgid, @@ -394,10 +371,11 @@ hysdn_procconf_init(void) while (card) { sprintf(conf_name, "%s%d", PROC_CONF_BASENAME, card->myid); - if ((card->procconf = (void *) proc_create(conf_name, + if ((card->procconf = (void *) proc_create_data(conf_name, S_IFREG | S_IRUGO | S_IWUSR, hysdn_proc_entry, - &conf_fops)) != NULL) { + &conf_fops, + card)) != NULL) { hysdn_proclog_init(card); /* init the log file entry */ } card = card->next; /* next entry */ diff --git a/drivers/isdn/hysdn/hysdn_proclog.c b/drivers/isdn/hysdn/hysdn_proclog.c index 9a3ce93665c5..22f0e4ef1fb1 100644 --- a/drivers/isdn/hysdn/hysdn_proclog.c +++ b/drivers/isdn/hysdn/hysdn_proclog.c @@ -173,27 +173,14 @@ hysdn_log_read(struct file *file, char __user *buf, size_t count, loff_t *off) { struct log_data *inf; int len; - struct proc_dir_entry *pde = PDE(file_inode(file)); - struct procdata *pd = NULL; - hysdn_card *card; + hysdn_card *card = PDE(file_inode(file))->data; if (!*((struct log_data **) file->private_data)) { + struct procdata *pd = card->proclog; if (file->f_flags & O_NONBLOCK) return (-EAGAIN); - /* sorry, but we need to search the card */ - card = card_root; - while (card) { - pd = card->proclog; - if (pd->log == pde) - break; - card = card->next; /* search next entry */ - } - if (card) - interruptible_sleep_on(&(pd->rd_queue)); - else - return (-EAGAIN); - + interruptible_sleep_on(&(pd->rd_queue)); } if (!(inf = *((struct log_data **) file->private_data))) return (0); @@ -215,27 +202,15 @@ hysdn_log_read(struct file *file, char __user *buf, size_t count, loff_t *off) static int hysdn_log_open(struct inode *ino, struct file *filep) { - hysdn_card *card; - struct procdata *pd = NULL; - unsigned long flags; + hysdn_card *card = PDE(ino)->data; mutex_lock(&hysdn_log_mutex); - card = card_root; - while (card) { - pd = card->proclog; - if (pd->log == PDE(ino)) - break; - card = card->next; /* search next entry */ - } - if (!card) { - mutex_unlock(&hysdn_log_mutex); - return (-ENODEV); /* device is unknown/invalid */ - } - filep->private_data = card; /* remember our own card */ - if ((filep->f_mode & (FMODE_READ | FMODE_WRITE)) == FMODE_WRITE) { /* write only access -> write log level only */ + filep->private_data = card; /* remember our own card */ } else if ((filep->f_mode & (FMODE_READ | FMODE_WRITE)) == FMODE_READ) { + struct procdata *pd = card->proclog; + unsigned long flags; /* read access -> log/debug read */ spin_lock_irqsave(&card->hysdn_lock, flags); @@ -275,21 +250,13 @@ hysdn_log_close(struct inode *ino, struct file *filep) } else { /* read access -> log/debug read, mark one further file as closed */ - pd = NULL; inf = *((struct log_data **) filep->private_data); /* get first log entry */ if (inf) pd = (struct procdata *) inf->proc_ctrl; /* still entries there */ else { /* no info available -> search card */ - card = card_root; - while (card) { - pd = card->proclog; - if (pd->log == PDE(ino)) - break; - card = card->next; /* search next entry */ - } - if (card) - pd = card->proclog; /* pointer to procfs log */ + card = PDE(file_inode(filep))->data; + pd = card->proclog; /* pointer to procfs log */ } if (pd) pd->if_used--; /* decrement interface usage count by one */ @@ -319,24 +286,12 @@ static unsigned int hysdn_log_poll(struct file *file, poll_table *wait) { unsigned int mask = 0; - struct proc_dir_entry *pde = PDE(file_inode(file)); - hysdn_card *card; - struct procdata *pd = NULL; + hysdn_card *card = PDE(file_inode(file))->data; + struct procdata *pd = card->proclog; if ((file->f_mode & (FMODE_READ | FMODE_WRITE)) == FMODE_WRITE) return (mask); /* no polling for write supported */ - /* we need to search the card */ - card = card_root; - while (card) { - pd = card->proclog; - if (pd->log == pde) - break; - card = card->next; /* search next entry */ - } - if (!card) - return (mask); /* card not found */ - poll_wait(file, &(pd->rd_queue), wait); if (*((struct log_data **) file->private_data)) @@ -373,9 +328,9 @@ hysdn_proclog_init(hysdn_card *card) if ((pd = kzalloc(sizeof(struct procdata), GFP_KERNEL)) != NULL) { sprintf(pd->log_name, "%s%d", PROC_LOG_BASENAME, card->myid); - pd->log = proc_create(pd->log_name, + pd->log = proc_create_data(pd->log_name, S_IFREG | S_IRUGO | S_IWUSR, hysdn_proc_entry, - &log_fops); + &log_fops, card); init_waitqueue_head(&(pd->rd_queue)); From aee0c612b12f57f4923f6649fa6fcba618182261 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 28 Mar 2013 23:01:34 -0400 Subject: [PATCH 032/204] snd_info_register: switch to proc_create_data/proc_mkdir_mode Signed-off-by: Al Viro --- sound/core/info.c | 22 ++++++++++++++-------- 1 file changed, 14 insertions(+), 8 deletions(-) diff --git a/sound/core/info.c b/sound/core/info.c index 5bb97e7d325a..a4e2de6874df 100644 --- a/sound/core/info.c +++ b/sound/core/info.c @@ -959,15 +959,21 @@ int snd_info_register(struct snd_info_entry * entry) return -ENXIO; root = entry->parent == NULL ? snd_proc_root : entry->parent->p; mutex_lock(&info_mutex); - p = create_proc_entry(entry->name, entry->mode, root); - if (!p) { - mutex_unlock(&info_mutex); - return -ENOMEM; + if (S_ISDIR(entry->mode)) { + p = proc_mkdir_mode(entry->name, entry->mode, root); + if (!p) { + mutex_unlock(&info_mutex); + return -ENOMEM; + } + } else { + p = proc_create_data(entry->name, entry->mode, root, + &snd_info_entry_operations, entry); + if (!p) { + mutex_unlock(&info_mutex); + return -ENOMEM; + } + p->size = entry->size; } - if (!S_ISDIR(entry->mode)) - p->proc_fops = &snd_info_entry_operations; - p->size = entry->size; - p->data = entry; entry->p = p; if (entry->parent) list_add_tail(&entry->list, &entry->parent->children); From 0ecc833bac594099505a090cbca6ccd5b83d5975 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 29 Mar 2013 12:23:28 -0400 Subject: [PATCH 033/204] mode_t, whack-a-mole at 11... Signed-off-by: Al Viro --- drivers/net/wireless/ath/wil6210/debugfs.c | 4 ++-- drivers/staging/dgrp/dgrp_common.h | 2 +- drivers/staging/dgrp/dgrp_specproc.c | 2 +- fs/f2fs/acl.c | 2 +- fs/f2fs/dir.c | 2 +- fs/proc/self.c | 2 +- lib/notifier-error-inject.c | 4 ++-- 7 files changed, 9 insertions(+), 9 deletions(-) diff --git a/drivers/net/wireless/ath/wil6210/debugfs.c b/drivers/net/wireless/ath/wil6210/debugfs.c index 65fc9683bfd8..76c7694518d9 100644 --- a/drivers/net/wireless/ath/wil6210/debugfs.c +++ b/drivers/net/wireless/ath/wil6210/debugfs.c @@ -216,7 +216,7 @@ DEFINE_SIMPLE_ATTRIBUTE(fops_iomem_x32, wil_debugfs_iomem_x32_get, wil_debugfs_iomem_x32_set, "0x%08llx\n"); static struct dentry *wil_debugfs_create_iomem_x32(const char *name, - mode_t mode, + umode_t mode, struct dentry *parent, void __iomem *value) { @@ -367,7 +367,7 @@ static const struct file_operations fops_ioblob = { static struct dentry *wil_debugfs_create_ioblob(const char *name, - mode_t mode, + umode_t mode, struct dentry *parent, struct debugfs_blob_wrapper *blob) { diff --git a/drivers/staging/dgrp/dgrp_common.h b/drivers/staging/dgrp/dgrp_common.h index 0583fe9c7b03..fde116236e98 100644 --- a/drivers/staging/dgrp/dgrp_common.h +++ b/drivers/staging/dgrp/dgrp_common.h @@ -120,7 +120,7 @@ enum { struct dgrp_proc_entry { int id; /* Integer identifier */ const char *name; /* ASCII identifier */ - mode_t mode; /* File access permissions */ + umode_t mode; /* File access permissions */ struct dgrp_proc_entry *child; /* Child pointer */ /* file ops to use, pass NULL to use default */ diff --git a/drivers/staging/dgrp/dgrp_specproc.c b/drivers/staging/dgrp/dgrp_specproc.c index 73f287f96604..dddf8a2e396b 100644 --- a/drivers/staging/dgrp/dgrp_specproc.c +++ b/drivers/staging/dgrp/dgrp_specproc.c @@ -228,7 +228,7 @@ static void register_proc_table(struct dgrp_proc_entry *table, { struct proc_dir_entry *de; int len; - mode_t mode; + umode_t mode; if (table == NULL) return; diff --git a/fs/f2fs/acl.c b/fs/f2fs/acl.c index 137af4255da6..44abc2f286e0 100644 --- a/fs/f2fs/acl.c +++ b/fs/f2fs/acl.c @@ -299,7 +299,7 @@ int f2fs_acl_chmod(struct inode *inode) struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb); struct posix_acl *acl; int error; - mode_t mode = get_inode_mode(inode); + umode_t mode = get_inode_mode(inode); if (!test_opt(sbi, POSIX_ACL)) return 0; diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c index a1f38443ecee..1be948768e2f 100644 --- a/fs/f2fs/dir.c +++ b/fs/f2fs/dir.c @@ -60,7 +60,7 @@ static unsigned char f2fs_type_by_mode[S_IFMT >> S_SHIFT] = { static void set_de_type(struct f2fs_dir_entry *de, struct inode *inode) { - mode_t mode = inode->i_mode; + umode_t mode = inode->i_mode; de->file_type = f2fs_type_by_mode[(mode & S_IFMT) >> S_SHIFT]; } diff --git a/fs/proc/self.c b/fs/proc/self.c index aa5cc3bff140..d8a025296613 100644 --- a/fs/proc/self.c +++ b/fs/proc/self.c @@ -51,7 +51,7 @@ static const struct inode_operations proc_self_inode_operations = { void __init proc_self_init(void) { struct proc_dir_entry *proc_self_symlink; - mode_t mode; + umode_t mode; mode = S_IFLNK | S_IRWXUGO; proc_self_symlink = proc_create("self", mode, NULL, NULL ); diff --git a/lib/notifier-error-inject.c b/lib/notifier-error-inject.c index 44b92cb6224f..eb4a04afea80 100644 --- a/lib/notifier-error-inject.c +++ b/lib/notifier-error-inject.c @@ -17,7 +17,7 @@ static int debugfs_errno_get(void *data, u64 *val) DEFINE_SIMPLE_ATTRIBUTE(fops_errno, debugfs_errno_get, debugfs_errno_set, "%lld\n"); -static struct dentry *debugfs_create_errno(const char *name, mode_t mode, +static struct dentry *debugfs_create_errno(const char *name, umode_t mode, struct dentry *parent, int *value) { return debugfs_create_file(name, mode, parent, value, &fops_errno); @@ -50,7 +50,7 @@ struct dentry *notifier_err_inject_init(const char *name, struct dentry *parent, struct notifier_err_inject *err_inject, int priority) { struct notifier_err_inject_action *action; - mode_t mode = S_IFREG | S_IRUSR | S_IWUSR; + umode_t mode = S_IFREG | S_IRUSR | S_IWUSR; struct dentry *dir; struct dentry *actions_dir; From 021ada7dff22d0d9540ff596cb0f8bb866755ee1 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 29 Mar 2013 19:27:05 -0400 Subject: [PATCH 034/204] procfs: switch /proc/self away from proc_dir_entry Just have it pinned in dcache all along and let procfs ->kill_sb() drop it before kill_anon_super(). Signed-off-by: Al Viro --- fs/proc/base.c | 16 +++++++++--- fs/proc/inode.c | 2 +- fs/proc/internal.h | 1 + fs/proc/root.c | 2 ++ fs/proc/self.c | 46 +++++++++++++++++++++++++++++------ include/linux/pid_namespace.h | 1 + 6 files changed, 56 insertions(+), 12 deletions(-) diff --git a/fs/proc/base.c b/fs/proc/base.c index 69078c7cef1f..593e7c5ddb49 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -2794,7 +2794,7 @@ static struct tgid_iter next_tgid(struct pid_namespace *ns, struct tgid_iter ite return iter; } -#define TGID_OFFSET (FIRST_PROCESS_ENTRY) +#define TGID_OFFSET (FIRST_PROCESS_ENTRY + 1) static int proc_pid_fill_cache(struct file *filp, void *dirent, filldir_t filldir, struct tgid_iter iter) @@ -2817,13 +2817,21 @@ int proc_pid_readdir(struct file * filp, void * dirent, filldir_t filldir) struct tgid_iter iter; struct pid_namespace *ns; filldir_t __filldir; + loff_t pos = filp->f_pos; - if (filp->f_pos >= PID_MAX_LIMIT + TGID_OFFSET) + if (pos >= PID_MAX_LIMIT + TGID_OFFSET) goto out; - ns = filp->f_dentry->d_sb->s_fs_info; + if (pos == TGID_OFFSET - 1) { + if (proc_fill_cache(filp, dirent, filldir, "self", 4, + NULL, NULL, NULL) < 0) + goto out; + iter.tgid = 0; + } else { + iter.tgid = pos - TGID_OFFSET; + } iter.task = NULL; - iter.tgid = filp->f_pos - TGID_OFFSET; + ns = filp->f_dentry->d_sb->s_fs_info; for (iter = next_tgid(ns, iter); iter.task; iter.tgid += 1, iter = next_tgid(ns, iter)) { diff --git a/fs/proc/inode.c b/fs/proc/inode.c index 869116c2afbe..908e97457319 100644 --- a/fs/proc/inode.c +++ b/fs/proc/inode.c @@ -506,5 +506,5 @@ int proc_fill_super(struct super_block *s) return -ENOMEM; } - return 0; + return proc_setup_self(s); } diff --git a/fs/proc/internal.h b/fs/proc/internal.h index 85ff3a4598b3..9c93a53f371d 100644 --- a/fs/proc/internal.h +++ b/fs/proc/internal.h @@ -205,3 +205,4 @@ int proc_setattr(struct dentry *dentry, struct iattr *attr); extern const struct inode_operations proc_ns_dir_inode_operations; extern const struct file_operations proc_ns_dir_operations; +extern int proc_setup_self(struct super_block *); diff --git a/fs/proc/root.c b/fs/proc/root.c index c6e9fac26bac..20834b3c8ea3 100644 --- a/fs/proc/root.c +++ b/fs/proc/root.c @@ -137,6 +137,8 @@ static void proc_kill_sb(struct super_block *sb) struct pid_namespace *ns; ns = (struct pid_namespace *)sb->s_fs_info; + if (ns->proc_self) + dput(ns->proc_self); kill_anon_super(sb); put_pid_ns(ns); } diff --git a/fs/proc/self.c b/fs/proc/self.c index d8a025296613..21940d89977e 100644 --- a/fs/proc/self.c +++ b/fs/proc/self.c @@ -1,6 +1,7 @@ -#include #include #include +#include +#include "internal.h" /* * /proc/self: @@ -48,12 +49,43 @@ static const struct inode_operations proc_self_inode_operations = { .put_link = proc_self_put_link, }; +static unsigned self_inum; + +int proc_setup_self(struct super_block *s) +{ + struct inode *root_inode = s->s_root->d_inode; + struct pid_namespace *ns = s->s_fs_info; + struct dentry *self; + + mutex_lock(&root_inode->i_mutex); + self = d_alloc_name(s->s_root, "self"); + if (self) { + struct inode *inode = new_inode_pseudo(s); + if (inode) { + inode->i_ino = self_inum; + inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME; + inode->i_mode = S_IFLNK | S_IRWXUGO; + inode->i_uid = GLOBAL_ROOT_UID; + inode->i_gid = GLOBAL_ROOT_GID; + inode->i_op = &proc_self_inode_operations; + d_add(self, inode); + } else { + dput(self); + self = ERR_PTR(-ENOMEM); + } + } else { + self = ERR_PTR(-ENOMEM); + } + mutex_unlock(&root_inode->i_mutex); + if (IS_ERR(self)) { + pr_err("proc_fill_super: can't allocate /proc/self\n"); + return PTR_ERR(self); + } + ns->proc_self = self; + return 0; +} + void __init proc_self_init(void) { - struct proc_dir_entry *proc_self_symlink; - umode_t mode; - - mode = S_IFLNK | S_IRWXUGO; - proc_self_symlink = proc_create("self", mode, NULL, NULL ); - proc_self_symlink->proc_iops = &proc_self_inode_operations; + proc_alloc_inum(&self_inum); } diff --git a/include/linux/pid_namespace.h b/include/linux/pid_namespace.h index 215e5e3dda10..5524f8cfa950 100644 --- a/include/linux/pid_namespace.h +++ b/include/linux/pid_namespace.h @@ -28,6 +28,7 @@ struct pid_namespace { struct pid_namespace *parent; #ifdef CONFIG_PROC_FS struct vfsmount *proc_mnt; + struct dentry *proc_self; #endif #ifdef CONFIG_BSD_PROCESS_ACCT struct bsd_acct_struct *bacct; From e3e7b40c192b4e31eb7043867ea87f834076b1e2 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 29 Mar 2013 19:30:06 -0400 Subject: [PATCH 035/204] rtl8192e: don't use create_proc_entry() for directories proc_mkdir() is there for purpose... Signed-off-by: Al Viro --- drivers/staging/rtl8192e/rtllib_module.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/rtl8192e/rtllib_module.c b/drivers/staging/rtl8192e/rtllib_module.c index f9dae958a5d4..40b6d809e01e 100644 --- a/drivers/staging/rtl8192e/rtllib_module.c +++ b/drivers/staging/rtl8192e/rtllib_module.c @@ -246,7 +246,7 @@ int __init rtllib_init(void) struct proc_dir_entry *e; rtllib_debug_level = debug; - rtllib_proc = create_proc_entry(DRV_NAME, S_IFDIR, init_net.proc_net); + rtllib_proc = proc_mkdir(DRV_NAME, init_net.proc_net); if (rtllib_proc == NULL) { RTLLIB_ERROR("Unable to create " DRV_NAME " proc directory\n"); From c037773cc7f8d3fb72dabc3dc0a53f5376d1383c Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 31 Mar 2013 15:02:51 -0400 Subject: [PATCH 036/204] rtl8192e: switch to proc_create() Signed-off-by: Al Viro --- drivers/staging/rtl8192e/rtllib_module.c | 54 ++++++++++-------------- 1 file changed, 22 insertions(+), 32 deletions(-) diff --git a/drivers/staging/rtl8192e/rtllib_module.c b/drivers/staging/rtl8192e/rtllib_module.c index 40b6d809e01e..84ea721d5d8e 100644 --- a/drivers/staging/rtl8192e/rtllib_module.c +++ b/drivers/staging/rtl8192e/rtllib_module.c @@ -208,39 +208,34 @@ static int debug = \ ; static struct proc_dir_entry *rtllib_proc; -static int show_debug_level(char *page, char **start, off_t offset, - int count, int *eof, void *data) +static int show_debug_level(struct seq_file *m, void *v) { - return snprintf(page, count, "0x%08X\n", rtllib_debug_level); + return seq_printf(m, "0x%08X\n", rtllib_debug_level); } -static int store_debug_level(struct file *file, const char __user *buffer, - unsigned long count, void *data) +static ssize_t write_debug_level(struct file *file, const char __user *buffer, + size_t count, loff_t *ppos) { - char buf[] = "0x00000000"; - unsigned long len = min((unsigned long)sizeof(buf) - 1, count); - char *p = (char *)buf; unsigned long val; - - if (copy_from_user(buf, buffer, len)) - return count; - buf[len] = 0; - if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') { - p++; - if (p[0] == 'x' || p[0] == 'X') - p++; - val = simple_strtoul(p, &p, 16); - } else - val = simple_strtoul(p, &p, 10); - if (p == buf) - printk(KERN_INFO DRV_NAME - ": %s is not in hex or decimal form.\n", buf); - else - rtllib_debug_level = val; - - return strnlen(buf, count); + int err = kstrtoul_from_user(buffer, count, 0, &val); + if (err) + return err; + rtllib_debug_level = val; + return count; } +static int open_debug_level(struct inode *inode, struct file *file) +{ + return single_open(file, show_debug_level, NULL); +} + +static const struct file_operations fops = { + .open = open_debug_level, + .read = seq_read, + .llseek = seq_lseek, + .write = write_debug_level +}; + int __init rtllib_init(void) { struct proc_dir_entry *e; @@ -252,17 +247,12 @@ int __init rtllib_init(void) " proc directory\n"); return -EIO; } - e = create_proc_entry("debug_level", S_IFREG | S_IRUGO | S_IWUSR, - rtllib_proc); + e = proc_create("debug_level", S_IRUGO | S_IWUSR, rtllib_proc, &fops); if (!e) { remove_proc_entry(DRV_NAME, init_net.proc_net); rtllib_proc = NULL; return -EIO; } - e->read_proc = show_debug_level; - e->write_proc = store_debug_level; - e->data = NULL; - return 0; } From f56e2947be4585fd35627b4b778c582ca7fb5b03 Mon Sep 17 00:00:00 2001 From: Sean MacLennan Date: Mon, 8 Apr 2013 21:18:06 -0400 Subject: [PATCH 037/204] The rtl8192e procfs-based debug interface seems very broken The procfs debug code in rtl_debug.c is, ironically, very buggy: it lacks proper locking. Since the most useful part of the code (the stats) are available through more standard APIs, I think it is best to just delete the whole mess. Signed-off-by: Sean MacLennan Signed-off-by: Al Viro --- drivers/staging/rtl8192e/rtl8192e/Makefile | 1 - drivers/staging/rtl8192e/rtl8192e/rtl_core.c | 5 - drivers/staging/rtl8192e/rtl8192e/rtl_core.h | 6 - drivers/staging/rtl8192e/rtl8192e/rtl_debug.c | 1029 ----------------- 4 files changed, 1041 deletions(-) delete mode 100644 drivers/staging/rtl8192e/rtl8192e/rtl_debug.c diff --git a/drivers/staging/rtl8192e/rtl8192e/Makefile b/drivers/staging/rtl8192e/rtl8192e/Makefile index 313a92ec6833..a2c4fb4ba1af 100644 --- a/drivers/staging/rtl8192e/rtl8192e/Makefile +++ b/drivers/staging/rtl8192e/rtl8192e/Makefile @@ -7,7 +7,6 @@ r8192e_pci-objs := \ r8190P_rtl8256.o \ rtl_cam.o \ rtl_core.o \ - rtl_debug.o \ rtl_dm.o \ rtl_eeprom.o \ rtl_ethtool.o \ diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_core.c b/drivers/staging/rtl8192e/rtl8192e/rtl_core.c index 4ebf99b30975..2b6c61c5d3d8 100644 --- a/drivers/staging/rtl8192e/rtl8192e/rtl_core.c +++ b/drivers/staging/rtl8192e/rtl8192e/rtl_core.c @@ -2966,8 +2966,6 @@ static int rtl8192_pci_probe(struct pci_dev *pdev, goto err_free_irq; RT_TRACE(COMP_INIT, "dev name: %s\n", dev->name); - rtl8192_proc_init_one(dev); - if (priv->polling_timer_on == 0) check_rfctrl_gpio_timer((unsigned long)dev); @@ -3003,7 +3001,6 @@ static void rtl8192_pci_disconnect(struct pci_dev *pdev) del_timer_sync(&priv->gpio_polling_timer); cancel_delayed_work(&priv->gpio_change_rf_wq); priv->polling_timer_on = 0; - rtl8192_proc_remove_one(dev); rtl8192_down(dev, true); deinit_hal_dm(dev); if (priv->pFirmware) { @@ -3093,7 +3090,6 @@ static int __init rtl8192_pci_module_init(void) printk(KERN_INFO "\nLinux kernel driver for RTL8192E WLAN cards\n"); printk(KERN_INFO "Copyright (c) 2007-2008, Realsil Wlan Driver\n"); - rtl8192_proc_module_init(); if (0 != pci_register_driver(&rtl8192_pci_driver)) { DMESG("No device found"); /*pci_unregister_driver (&rtl8192_pci_driver);*/ @@ -3107,7 +3103,6 @@ static void __exit rtl8192_pci_module_exit(void) pci_unregister_driver(&rtl8192_pci_driver); RT_TRACE(COMP_DOWN, "Exiting"); - rtl8192_proc_module_remove(); } void check_rfctrl_gpio_timer(unsigned long data) diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_core.h b/drivers/staging/rtl8192e/rtl8192e/rtl_core.h index 320d5fc026b4..87d4d349c890 100644 --- a/drivers/staging/rtl8192e/rtl8192e/rtl_core.h +++ b/drivers/staging/rtl8192e/rtl8192e/rtl_core.h @@ -1085,10 +1085,4 @@ void ActUpdateChannelAccessSetting(struct net_device *dev, enum wireless_mode WirelessMode, struct channel_access_setting *ChnlAccessSetting); -/* proc stuff from rtl_debug.c */ -void rtl8192_proc_init_one(struct net_device *dev); -void rtl8192_proc_remove_one(struct net_device *dev); -void rtl8192_proc_module_init(void); -void rtl8192_proc_module_remove(void); - #endif diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_debug.c b/drivers/staging/rtl8192e/rtl8192e/rtl_debug.c deleted file mode 100644 index c19b14cd6f77..000000000000 --- a/drivers/staging/rtl8192e/rtl8192e/rtl_debug.c +++ /dev/null @@ -1,1029 +0,0 @@ -/****************************************************************************** - * Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved. - * - * Based on the r8180 driver, which is: - * Copyright 2004-2005 Andrea Merello , et al. - * This program is free software; you can redistribute it and/or modify it - * under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * The full GNU General Public License is included in this distribution in the - * file called LICENSE. - * - * Contact Information: - * wlanfae -******************************************************************************/ -#include "rtl_core.h" -#include "r8192E_phy.h" -#include "r8192E_phyreg.h" -#include "r8190P_rtl8256.h" /* RTL8225 Radio frontend */ -#include "r8192E_cmdpkt.h" - -/**************************************************************************** - -----------------------------PROCFS STUFF------------------------- -*****************************************************************************/ -/*This part is related to PROC, which will record some statistics. */ -static struct proc_dir_entry *rtl8192_proc; - -static int proc_get_stats_ap(char *page, char **start, - off_t offset, int count, - int *eof, void *data) -{ - struct net_device *dev = data; - struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev); - struct rtllib_device *ieee = priv->rtllib; - struct rtllib_network *target; - int len = 0; - - list_for_each_entry(target, &ieee->network_list, list) { - - len += snprintf(page + len, count - len, - "%s ", target->ssid); - - if (target->wpa_ie_len > 0 || target->rsn_ie_len > 0) - len += snprintf(page + len, count - len, - "WPA\n"); - else - len += snprintf(page + len, count - len, - "non_WPA\n"); - - } - - *eof = 1; - return len; -} - -static int proc_get_registers_0(char *page, char **start, - off_t offset, int count, - int *eof, void *data) -{ - struct net_device *dev = data; - - int len = 0; - int i, n, page0; - - int max = 0xff; - page0 = 0x000; - - len += snprintf(page + len, count - len, - "\n####################page %x##################\n ", - (page0>>8)); - len += snprintf(page + len, count - len, - "\nD: OF > 00 01 02 03 04 05 06 07 08 09 0A 0B " - "0C 0D 0E 0F"); - for (n = 0; n <= max;) { - len += snprintf(page + len, count - len, "\nD: %2x > ", n); - for (i = 0; i < 16 && n <= max; n++, i++) - len += snprintf(page + len, count - len, - "%2.2x ", read_nic_byte(dev, - (page0 | n))); - } - len += snprintf(page + len, count - len, "\n"); - *eof = 1; - return len; - -} -static int proc_get_registers_1(char *page, char **start, - off_t offset, int count, - int *eof, void *data) -{ - struct net_device *dev = data; - - int len = 0; - int i, n, page0; - - int max = 0xff; - page0 = 0x100; - - /* This dump the current register page */ - len += snprintf(page + len, count - len, - "\n####################page %x##################\n ", - (page0>>8)); - len += snprintf(page + len, count - len, - "\nD: OF > 00 01 02 03 04 05 06 07 08 09 0A 0B " - "0C 0D 0E 0F"); - for (n = 0; n <= max;) { - len += snprintf(page + len, count - len, - "\nD: %2x > ", n); - for (i = 0; i < 16 && n <= max; i++, n++) - len += snprintf(page + len, count - len, - "%2.2x ", read_nic_byte(dev, - (page0 | n))); - } - len += snprintf(page + len, count - len, "\n"); - *eof = 1; - return len; - -} -static int proc_get_registers_2(char *page, char **start, - off_t offset, int count, - int *eof, void *data) -{ - struct net_device *dev = data; - - int len = 0; - int i, n, page0; - - int max = 0xff; - page0 = 0x200; - - /* This dump the current register page */ - len += snprintf(page + len, count - len, - "\n####################page %x##################\n ", - (page0 >> 8)); - len += snprintf(page + len, count - len, - "\nD: OF > 00 01 02 03 04 05 06 07 08 09 0A 0B 0C " - "0D 0E 0F"); - for (n = 0; n <= max;) { - len += snprintf(page + len, count - len, - "\nD: %2x > ", n); - for (i = 0; i < 16 && n <= max; i++, n++) - len += snprintf(page + len, count - len, - "%2.2x ", read_nic_byte(dev, - (page0 | n))); - } - len += snprintf(page + len, count - len, "\n"); - *eof = 1; - return len; - -} -static int proc_get_registers_3(char *page, char **start, - off_t offset, int count, - int *eof, void *data) -{ - struct net_device *dev = data; - - int len = 0; - int i, n, page0; - - int max = 0xff; - page0 = 0x300; - - /* This dump the current register page */ - len += snprintf(page + len, count - len, - "\n####################page %x##################\n ", - (page0>>8)); - len += snprintf(page + len, count - len, - "\nD: OF > 00 01 02 03 04 05 06 07 08 09 0A 0B " - "0C 0D 0E 0F"); - for (n = 0; n <= max;) { - len += snprintf(page + len, count - len, - "\nD: %2x > ", n); - for (i = 0; i < 16 && n <= max; i++, n++) - len += snprintf(page + len, count - len, - "%2.2x ", read_nic_byte(dev, - (page0 | n))); - } - len += snprintf(page + len, count - len, "\n"); - *eof = 1; - return len; - -} -static int proc_get_registers_4(char *page, char **start, - off_t offset, int count, - int *eof, void *data) -{ - struct net_device *dev = data; - - int len = 0; - int i, n, page0; - - int max = 0xff; - page0 = 0x400; - - /* This dump the current register page */ - len += snprintf(page + len, count - len, - "\n####################page %x##################\n ", - (page0>>8)); - len += snprintf(page + len, count - len, - "\nD: OF > 00 01 02 03 04 05 06 07 08 09 0A 0B " - "0C 0D 0E 0F"); - for (n = 0; n <= max;) { - len += snprintf(page + len, count - len, - "\nD: %2x > ", n); - for (i = 0; i < 16 && n <= max; i++, n++) - len += snprintf(page + len, count - len, - "%2.2x ", read_nic_byte(dev, - (page0 | n))); - } - len += snprintf(page + len, count - len, "\n"); - *eof = 1; - return len; - -} -static int proc_get_registers_5(char *page, char **start, - off_t offset, int count, - int *eof, void *data) -{ - struct net_device *dev = data; - - int len = 0; - int i, n, page0; - - int max = 0xff; - page0 = 0x500; - - /* This dump the current register page */ - len += snprintf(page + len, count - len, - "\n####################page %x##################\n ", - (page0 >> 8)); - len += snprintf(page + len, count - len, - "\nD: OF > 00 01 02 03 04 05 06 07 08 09 0A 0B " - "0C 0D 0E 0F"); - for (n = 0; n <= max;) { - len += snprintf(page + len, count - len, - "\nD: %2x > ", n); - for (i = 0; i < 16 && n <= max; i++, n++) - len += snprintf(page + len, count - len, - "%2.2x ", read_nic_byte(dev, - (page0 | n))); - } - len += snprintf(page + len, count - len, "\n"); - *eof = 1; - return len; - -} -static int proc_get_registers_6(char *page, char **start, - off_t offset, int count, - int *eof, void *data) -{ - struct net_device *dev = data; - - int len = 0; - int i, n, page0; - - int max = 0xff; - page0 = 0x600; - - /* This dump the current register page */ - len += snprintf(page + len, count - len, - "\n####################page %x##################\n ", - (page0>>8)); - len += snprintf(page + len, count - len, - "\nD: OF > 00 01 02 03 04 05 06 07 08 09 0A 0B " - "0C 0D 0E 0F"); - for (n = 0; n <= max;) { - len += snprintf(page + len, count - len, - "\nD: %2x > ", n); - for (i = 0; i < 16 && n <= max; i++, n++) - len += snprintf(page + len, count - len, - "%2.2x ", read_nic_byte(dev, - (page0 | n))); - } - len += snprintf(page + len, count - len, "\n"); - *eof = 1; - return len; - -} -static int proc_get_registers_7(char *page, char **start, - off_t offset, int count, - int *eof, void *data) -{ - struct net_device *dev = data; - - int len = 0; - int i, n, page0; - - int max = 0xff; - page0 = 0x700; - - /* This dump the current register page */ - len += snprintf(page + len, count - len, - "\n####################page %x##################\n ", - (page0 >> 8)); - len += snprintf(page + len, count - len, - "\nD: OF > 00 01 02 03 04 05 06 07 08 09 0A 0B 0C " - "0D 0E 0F"); - for (n = 0; n <= max;) { - len += snprintf(page + len, count - len, - "\nD: %2x > ", n); - for (i = 0; i < 16 && n <= max; i++, n++) - len += snprintf(page + len, count - len, - "%2.2x ", read_nic_byte(dev, - (page0 | n))); - } - len += snprintf(page + len, count - len, "\n"); - *eof = 1; - return len; - -} -static int proc_get_registers_8(char *page, char **start, - off_t offset, int count, - int *eof, void *data) -{ - struct net_device *dev = data; - - int len = 0; - int i, n, page0; - - int max = 0xff; - page0 = 0x800; - - /* This dump the current register page */ - len += snprintf(page + len, count - len, - "\n####################page %x##################\n", - (page0 >> 8)); - for (n = 0; n <= max;) { - len += snprintf(page + len, count - len, "\nD: %2x > ", n); - for (i = 0; i < 4 && n <= max; n += 4, i++) - len += snprintf(page + len, count - len, - "%8.8x ", rtl8192_QueryBBReg(dev, - (page0 | n), bMaskDWord)); - } - len += snprintf(page + len, count - len, "\n"); - *eof = 1; - return len; - -} -static int proc_get_registers_9(char *page, char **start, - off_t offset, int count, - int *eof, void *data) -{ - struct net_device *dev = data; - - int len = 0; - int i, n, page0; - - int max = 0xff; - page0 = 0x900; - - /* This dump the current register page */ - len += snprintf(page + len, count - len, - "\n####################page %x##################\n", - (page0>>8)); - for (n = 0; n <= max;) { - len += snprintf(page + len, count - len, "\nD: %2x > ", n); - for (i = 0; i < 4 && n <= max; n += 4, i++) - len += snprintf(page + len, count - len, - "%8.8x ", rtl8192_QueryBBReg(dev, - (page0 | n), bMaskDWord)); - } - len += snprintf(page + len, count - len, "\n"); - *eof = 1; - return len; -} -static int proc_get_registers_a(char *page, char **start, - off_t offset, int count, - int *eof, void *data) -{ - struct net_device *dev = data; - - int len = 0; - int i, n, page0; - - int max = 0xff; - page0 = 0xa00; - - /* This dump the current register page */ - len += snprintf(page + len, count - len, - "\n####################page %x##################\n", - (page0>>8)); - for (n = 0; n <= max;) { - len += snprintf(page + len, count - len, "\nD: %2x > ", n); - for (i = 0; i < 4 && n <= max; n += 4, i++) - len += snprintf(page + len, count - len, - "%8.8x ", rtl8192_QueryBBReg(dev, - (page0 | n), bMaskDWord)); - } - len += snprintf(page + len, count - len, "\n"); - *eof = 1; - return len; -} -static int proc_get_registers_b(char *page, char **start, - off_t offset, int count, - int *eof, void *data) -{ - struct net_device *dev = data; - - int len = 0; - int i, n, page0; - - int max = 0xff; - page0 = 0xb00; - - /* This dump the current register page */ - len += snprintf(page + len, count - len, - "\n####################page %x##################\n", - (page0 >> 8)); - for (n = 0; n <= max;) { - len += snprintf(page + len, count - len, "\nD: %2x > ", n); - for (i = 0; i < 4 && n <= max; n += 4, i++) - len += snprintf(page + len, count - len, - "%8.8x ", rtl8192_QueryBBReg(dev, - (page0 | n), bMaskDWord)); - } - len += snprintf(page + len, count - len, "\n"); - *eof = 1; - return len; -} -static int proc_get_registers_c(char *page, char **start, - off_t offset, int count, - int *eof, void *data) -{ - struct net_device *dev = data; - - int len = 0; - int i, n, page0; - - int max = 0xff; - page0 = 0xc00; - - /* This dump the current register page */ - len += snprintf(page + len, count - len, - "\n####################page %x##################\n", - (page0>>8)); - for (n = 0; n <= max;) { - len += snprintf(page + len, count - len, "\nD: %2x > ", n); - for (i = 0; i < 4 && n <= max; n += 4, i++) - len += snprintf(page + len, count - len, - "%8.8x ", rtl8192_QueryBBReg(dev, - (page0 | n), bMaskDWord)); - } - len += snprintf(page + len, count - len, "\n"); - *eof = 1; - return len; -} -static int proc_get_registers_d(char *page, char **start, - off_t offset, int count, - int *eof, void *data) -{ - struct net_device *dev = data; - - int len = 0; - int i, n, page0; - - int max = 0xff; - page0 = 0xd00; - - /* This dump the current register page */ - len += snprintf(page + len, count - len, - "\n####################page %x##################\n", - (page0>>8)); - for (n = 0; n <= max;) { - len += snprintf(page + len, count - len, "\nD: %2x > ", n); - for (i = 0; i < 4 && n <= max; n += 4, i++) - len += snprintf(page + len, count - len, - "%8.8x ", rtl8192_QueryBBReg(dev, - (page0 | n), bMaskDWord)); - } - len += snprintf(page + len, count - len, "\n"); - *eof = 1; - return len; -} -static int proc_get_registers_e(char *page, char **start, - off_t offset, int count, - int *eof, void *data) -{ - struct net_device *dev = data; - - int len = 0; - int i, n, page0; - - int max = 0xff; - page0 = 0xe00; - - /* This dump the current register page */ - len += snprintf(page + len, count - len, - "\n####################page %x##################\n", - (page0>>8)); - for (n = 0; n <= max;) { - len += snprintf(page + len, count - len, "\nD: %2x > ", n); - for (i = 0; i < 4 && n <= max; n += 4, i++) - len += snprintf(page + len, count - len, - "%8.8x ", rtl8192_QueryBBReg(dev, - (page0 | n), bMaskDWord)); - } - len += snprintf(page + len, count - len, "\n"); - *eof = 1; - return len; -} - -static int proc_get_reg_rf_a(char *page, char **start, - off_t offset, int count, - int *eof, void *data) -{ - struct net_device *dev = data; - - int len = 0; - int i, n; - - int max = 0xff; - - /* This dump the current register page */ - len += snprintf(page + len, count - len, - "\n#################### RF-A ##################\n "); - for (n = 0; n <= max;) { - len += snprintf(page + len, count - len, "\nD: %2x > ", n); - for (i = 0; i < 4 && n <= max; n += 4, i++) - len += snprintf(page + len, count - len, - "%8.8x ", rtl8192_phy_QueryRFReg(dev, - (enum rf90_radio_path)RF90_PATH_A, n, - bMaskDWord)); - } - len += snprintf(page + len, count - len, "\n"); - *eof = 1; - return len; -} - -static int proc_get_reg_rf_b(char *page, char **start, - off_t offset, int count, - int *eof, void *data) -{ - struct net_device *dev = data; - - int len = 0; - int i, n; - - int max = 0xff; - - /* This dump the current register page */ - len += snprintf(page + len, count - len, - "\n#################### RF-B ##################\n "); - for (n = 0; n <= max;) { - len += snprintf(page + len, count - len, "\nD: %2x > ", n); - for (i = 0; i < 4 && n <= max; n += 4, i++) - len += snprintf(page + len, count - len, - "%8.8x ", rtl8192_phy_QueryRFReg(dev, - (enum rf90_radio_path)RF90_PATH_B, n, - bMaskDWord)); - } - len += snprintf(page + len, count - len, "\n"); - *eof = 1; - return len; -} - -static int proc_get_reg_rf_c(char *page, char **start, - off_t offset, int count, - int *eof, void *data) -{ - struct net_device *dev = data; - - int len = 0; - int i, n; - - int max = 0xff; - - /* This dump the current register page */ - len += snprintf(page + len, count - len, - "\n#################### RF-C ##################\n"); - for (n = 0; n <= max;) { - len += snprintf(page + len, count - len, "\nD: %2x > ", n); - for (i = 0; i < 4 && n <= max; n += 4, i++) - len += snprintf(page + len, count - len, - "%8.8x ", rtl8192_phy_QueryRFReg(dev, - (enum rf90_radio_path)RF90_PATH_C, n, - bMaskDWord)); - } - len += snprintf(page + len, count - len, "\n"); - *eof = 1; - return len; -} - -static int proc_get_reg_rf_d(char *page, char **start, - off_t offset, int count, - int *eof, void *data) -{ - struct net_device *dev = data; - - int len = 0; - int i, n; - - int max = 0xff; - - /* This dump the current register page */ - len += snprintf(page + len, count - len, - "\n#################### RF-D ##################\n "); - for (n = 0; n <= max;) { - len += snprintf(page + len, count - len, "\nD: %2x > ", n); - for (i = 0; i < 4 && n <= max; n += 4, i++) - len += snprintf(page + len, count - len, - "%8.8x ", rtl8192_phy_QueryRFReg(dev, - (enum rf90_radio_path)RF90_PATH_D, n, - bMaskDWord)); - } - len += snprintf(page + len, count - len, "\n"); - *eof = 1; - return len; -} - -static int proc_get_cam_register_1(char *page, char **start, - off_t offset, int count, - int *eof, void *data) -{ - struct net_device *dev = data; - u32 target_command = 0; - u32 target_content = 0; - u8 entry_i = 0; - u32 ulStatus; - int len = 0; - int i = 100, j = 0; - - /* This dump the current register page */ - len += snprintf(page + len, count - len, - "\n#################### SECURITY CAM (0-10) ######" - "############\n "); - for (j = 0; j < 11; j++) { - len += snprintf(page + len, count - len, "\nD: %2x > ", j); - for (entry_i = 0; entry_i < CAM_CONTENT_COUNT; entry_i++) { - target_command = entry_i+CAM_CONTENT_COUNT*j; - target_command = target_command | BIT31; - - while ((i--) >= 0) { - ulStatus = read_nic_dword(dev, RWCAM); - if (ulStatus & BIT31) - continue; - else - break; - } - write_nic_dword(dev, RWCAM, target_command); - target_content = read_nic_dword(dev, RCAMO); - len += snprintf(page + len, count - len, "%8.8x ", - target_content); - } - } - - len += snprintf(page + len, count - len, "\n"); - *eof = 1; - return len; -} - -static int proc_get_cam_register_2(char *page, char **start, - off_t offset, int count, - int *eof, void *data) -{ - struct net_device *dev = data; - u32 target_command = 0; - u32 target_content = 0; - u8 entry_i = 0; - u32 ulStatus; - int len = 0; - int i = 100, j = 0; - - /* This dump the current register page */ - len += snprintf(page + len, count - len, - "\n#################### SECURITY CAM (11-21) " - "##################\n "); - for (j = 11; j < 22; j++) { - len += snprintf(page + len, count - len, "\nD: %2x > ", j); - for (entry_i = 0; entry_i < CAM_CONTENT_COUNT; entry_i++) { - target_command = entry_i + CAM_CONTENT_COUNT * j; - target_command = target_command | BIT31; - - while ((i--) >= 0) { - ulStatus = read_nic_dword(dev, RWCAM); - if (ulStatus & BIT31) - continue; - else - break; - } - write_nic_dword(dev, RWCAM, target_command); - target_content = read_nic_dword(dev, RCAMO); - len += snprintf(page + len, count - len, "%8.8x ", - target_content); - } - } - - len += snprintf(page + len, count - len, "\n"); - *eof = 1; - return len; -} - -static int proc_get_cam_register_3(char *page, char **start, - off_t offset, int count, - int *eof, void *data) -{ - struct net_device *dev = data; - u32 target_command = 0; - u32 target_content = 0; - u8 entry_i = 0; - u32 ulStatus; - int len = 0; - int i = 100, j = 0; - - /* This dump the current register page */ - len += snprintf(page + len, count - len, - "\n#################### SECURITY CAM (22-31) ######" - "############\n "); - for (j = 22; j < TOTAL_CAM_ENTRY; j++) { - len += snprintf(page + len, count - len, "\nD: %2x > ", j); - for (entry_i = 0; entry_i < CAM_CONTENT_COUNT; entry_i++) { - target_command = entry_i + CAM_CONTENT_COUNT * j; - target_command = target_command | BIT31; - - while ((i--) >= 0) { - ulStatus = read_nic_dword(dev, RWCAM); - if (ulStatus & BIT31) - continue; - else - break; - } - write_nic_dword(dev, RWCAM, target_command); - target_content = read_nic_dword(dev, RCAMO); - len += snprintf(page + len, count - len, "%8.8x ", - target_content); - } - } - - len += snprintf(page + len, count - len, "\n"); - *eof = 1; - return len; -} -static int proc_get_stats_tx(char *page, char **start, - off_t offset, int count, - int *eof, void *data) -{ - struct net_device *dev = data; - struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev); - - int len = 0; - - len += snprintf(page + len, count - len, - "TX VI priority ok int: %lu\n" - "TX VO priority ok int: %lu\n" - "TX BE priority ok int: %lu\n" - "TX BK priority ok int: %lu\n" - "TX MANAGE priority ok int: %lu\n" - "TX BEACON priority ok int: %lu\n" - "TX BEACON priority error int: %lu\n" - "TX CMDPKT priority ok int: %lu\n" - "TX queue stopped?: %d\n" - "TX fifo overflow: %lu\n" - "TX total data packets %lu\n" - "TX total data bytes :%lu\n", - priv->stats.txviokint, - priv->stats.txvookint, - priv->stats.txbeokint, - priv->stats.txbkokint, - priv->stats.txmanageokint, - priv->stats.txbeaconokint, - priv->stats.txbeaconerr, - priv->stats.txcmdpktokint, - netif_queue_stopped(dev), - priv->stats.txoverflow, - priv->rtllib->stats.tx_packets, - priv->rtllib->stats.tx_bytes - - - ); - - *eof = 1; - return len; -} - - - -static int proc_get_stats_rx(char *page, char **start, - off_t offset, int count, - int *eof, void *data) -{ - struct net_device *dev = data; - struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev); - - int len = 0; - - len += snprintf(page + len, count - len, - "RX packets: %lu\n" - "RX data crc err: %lu\n" - "RX mgmt crc err: %lu\n" - "RX desc err: %lu\n" - "RX rx overflow error: %lu\n", - priv->stats.rxint, - priv->stats.rxdatacrcerr, - priv->stats.rxmgmtcrcerr, - priv->stats.rxrdu, - priv->stats.rxoverflow); - - *eof = 1; - return len; -} - -void rtl8192_proc_module_init(void) -{ - RT_TRACE(COMP_INIT, "Initializing proc filesystem"); - rtl8192_proc = create_proc_entry(DRV_NAME, S_IFDIR, init_net.proc_net); -} - - -void rtl8192_proc_module_remove(void) -{ - remove_proc_entry(DRV_NAME, init_net.proc_net); -} - - -void rtl8192_proc_remove_one(struct net_device *dev) -{ - struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev); - - printk(KERN_INFO "dev name %s\n", dev->name); - - if (priv->dir_dev) { - remove_proc_entry("stats-tx", priv->dir_dev); - remove_proc_entry("stats-rx", priv->dir_dev); - remove_proc_entry("stats-ap", priv->dir_dev); - remove_proc_entry("registers-0", priv->dir_dev); - remove_proc_entry("registers-1", priv->dir_dev); - remove_proc_entry("registers-2", priv->dir_dev); - remove_proc_entry("registers-3", priv->dir_dev); - remove_proc_entry("registers-4", priv->dir_dev); - remove_proc_entry("registers-5", priv->dir_dev); - remove_proc_entry("registers-6", priv->dir_dev); - remove_proc_entry("registers-7", priv->dir_dev); - remove_proc_entry("registers-8", priv->dir_dev); - remove_proc_entry("registers-9", priv->dir_dev); - remove_proc_entry("registers-a", priv->dir_dev); - remove_proc_entry("registers-b", priv->dir_dev); - remove_proc_entry("registers-c", priv->dir_dev); - remove_proc_entry("registers-d", priv->dir_dev); - remove_proc_entry("registers-e", priv->dir_dev); - remove_proc_entry("RF-A", priv->dir_dev); - remove_proc_entry("RF-B", priv->dir_dev); - remove_proc_entry("RF-C", priv->dir_dev); - remove_proc_entry("RF-D", priv->dir_dev); - remove_proc_entry("SEC-CAM-1", priv->dir_dev); - remove_proc_entry("SEC-CAM-2", priv->dir_dev); - remove_proc_entry("SEC-CAM-3", priv->dir_dev); - remove_proc_entry("wlan0", rtl8192_proc); - priv->dir_dev = NULL; - } -} - - -void rtl8192_proc_init_one(struct net_device *dev) -{ - struct proc_dir_entry *e; - struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev); - - priv->dir_dev = create_proc_entry(dev->name, - S_IFDIR | S_IRUGO | S_IXUGO, - rtl8192_proc); - if (!priv->dir_dev) { - RT_TRACE(COMP_ERR, "Unable to initialize /proc/net/rtl8192" - "/%s\n", dev->name); - return; - } - e = create_proc_read_entry("stats-rx", S_IFREG | S_IRUGO, - priv->dir_dev, proc_get_stats_rx, dev); - - if (!e) - RT_TRACE(COMP_ERR, "Unable to initialize " - "/proc/net/rtl8192/%s/stats-rx\n", - dev->name); - - e = create_proc_read_entry("stats-tx", S_IFREG | S_IRUGO, - priv->dir_dev, proc_get_stats_tx, dev); - - if (!e) - RT_TRACE(COMP_ERR, "Unable to initialize " - "/proc/net/rtl8192/%s/stats-tx\n", - dev->name); - - e = create_proc_read_entry("stats-ap", S_IFREG | S_IRUGO, - priv->dir_dev, proc_get_stats_ap, dev); - - if (!e) - RT_TRACE(COMP_ERR, "Unable to initialize " - "/proc/net/rtl8192/%s/stats-ap\n", - dev->name); - - e = create_proc_read_entry("registers-0", S_IFREG | S_IRUGO, - priv->dir_dev, proc_get_registers_0, dev); - if (!e) - RT_TRACE(COMP_ERR, "Unable to initialize " - "/proc/net/rtl8192/%s/registers-0\n", - dev->name); - e = create_proc_read_entry("registers-1", S_IFREG | S_IRUGO, - priv->dir_dev, proc_get_registers_1, dev); - if (!e) - RT_TRACE(COMP_ERR, "Unable to initialize " - "/proc/net/rtl8192/%s/registers-1\n", - dev->name); - e = create_proc_read_entry("registers-2", S_IFREG | S_IRUGO, - priv->dir_dev, proc_get_registers_2, dev); - if (!e) - RT_TRACE(COMP_ERR, "Unable to initialize " - "/proc/net/rtl8192/%s/registers-2\n", - dev->name); - e = create_proc_read_entry("registers-3", S_IFREG | S_IRUGO, - priv->dir_dev, proc_get_registers_3, dev); - if (!e) - RT_TRACE(COMP_ERR, "Unable to initialize " - "/proc/net/rtl8192/%s/registers-3\n", - dev->name); - e = create_proc_read_entry("registers-4", S_IFREG | S_IRUGO, - priv->dir_dev, proc_get_registers_4, dev); - if (!e) - RT_TRACE(COMP_ERR, "Unable to initialize " - "/proc/net/rtl8192/%s/registers-4\n", - dev->name); - e = create_proc_read_entry("registers-5", S_IFREG | S_IRUGO, - priv->dir_dev, proc_get_registers_5, dev); - if (!e) - RT_TRACE(COMP_ERR, "Unable to initialize " - "/proc/net/rtl8192/%s/registers-5\n", - dev->name); - e = create_proc_read_entry("registers-6", S_IFREG | S_IRUGO, - priv->dir_dev, proc_get_registers_6, dev); - if (!e) - RT_TRACE(COMP_ERR, "Unable to initialize " - "/proc/net/rtl8192/%s/registers-6\n", - dev->name); - e = create_proc_read_entry("registers-7", S_IFREG | S_IRUGO, - priv->dir_dev, proc_get_registers_7, dev); - if (!e) - RT_TRACE(COMP_ERR, "Unable to initialize " - "/proc/net/rtl8192/%s/registers-7\n", - dev->name); - e = create_proc_read_entry("registers-8", S_IFREG | S_IRUGO, - priv->dir_dev, proc_get_registers_8, dev); - if (!e) - RT_TRACE(COMP_ERR, "Unable to initialize " - "/proc/net/rtl8192/%s/registers-8\n", - dev->name); - e = create_proc_read_entry("registers-9", S_IFREG | S_IRUGO, - priv->dir_dev, proc_get_registers_9, dev); - if (!e) - RT_TRACE(COMP_ERR, "Unable to initialize " - "/proc/net/rtl8192/%s/registers-9\n", - dev->name); - e = create_proc_read_entry("registers-a", S_IFREG | S_IRUGO, - priv->dir_dev, proc_get_registers_a, dev); - if (!e) - RT_TRACE(COMP_ERR, "Unable to initialize " - "/proc/net/rtl8192/%s/registers-a\n", - dev->name); - e = create_proc_read_entry("registers-b", S_IFREG | S_IRUGO, - priv->dir_dev, proc_get_registers_b, dev); - if (!e) - RT_TRACE(COMP_ERR, "Unable to initialize " - "/proc/net/rtl8192/%s/registers-b\n", - dev->name); - e = create_proc_read_entry("registers-c", S_IFREG | S_IRUGO, - priv->dir_dev, proc_get_registers_c, dev); - if (!e) - RT_TRACE(COMP_ERR, "Unable to initialize " - "/proc/net/rtl8192/%s/registers-c\n", - dev->name); - e = create_proc_read_entry("registers-d", S_IFREG | S_IRUGO, - priv->dir_dev, proc_get_registers_d, dev); - if (!e) - RT_TRACE(COMP_ERR, "Unable to initialize " - "/proc/net/rtl8192/%s/registers-d\n", - dev->name); - e = create_proc_read_entry("registers-e", S_IFREG | S_IRUGO, - priv->dir_dev, proc_get_registers_e, dev); - if (!e) - RT_TRACE(COMP_ERR, "Unable to initialize " - "/proc/net/rtl8192/%s/registers-e\n", - dev->name); - e = create_proc_read_entry("RF-A", S_IFREG | S_IRUGO, - priv->dir_dev, proc_get_reg_rf_a, dev); - if (!e) - RT_TRACE(COMP_ERR, "Unable to initialize " - "/proc/net/rtl8192/%s/RF-A\n", - dev->name); - e = create_proc_read_entry("RF-B", S_IFREG | S_IRUGO, - priv->dir_dev, proc_get_reg_rf_b, dev); - if (!e) - RT_TRACE(COMP_ERR, "Unable to initialize " - "/proc/net/rtl8192/%s/RF-B\n", - dev->name); - e = create_proc_read_entry("RF-C", S_IFREG | S_IRUGO, - priv->dir_dev, proc_get_reg_rf_c, dev); - if (!e) - RT_TRACE(COMP_ERR, "Unable to initialize " - "/proc/net/rtl8192/%s/RF-C\n", - dev->name); - e = create_proc_read_entry("RF-D", S_IFREG | S_IRUGO, - priv->dir_dev, proc_get_reg_rf_d, dev); - if (!e) - RT_TRACE(COMP_ERR, "Unable to initialize " - "/proc/net/rtl8192/%s/RF-D\n", - dev->name); - e = create_proc_read_entry("SEC-CAM-1", S_IFREG | S_IRUGO, - priv->dir_dev, proc_get_cam_register_1, dev); - if (!e) - RT_TRACE(COMP_ERR, "Unable to initialize " - "/proc/net/rtl8192/%s/SEC-CAM-1\n", - dev->name); - e = create_proc_read_entry("SEC-CAM-2", S_IFREG | S_IRUGO, - priv->dir_dev, proc_get_cam_register_2, dev); - if (!e) - RT_TRACE(COMP_ERR, "Unable to initialize " - "/proc/net/rtl8192/%s/SEC-CAM-2\n", - dev->name); - e = create_proc_read_entry("SEC-CAM-3", S_IFREG | S_IRUGO, - priv->dir_dev, proc_get_cam_register_3, dev); - if (!e) - RT_TRACE(COMP_ERR, "Unable to initialize " - "/proc/net/rtl8192/%s/SEC-CAM-3\n", - dev->name); -} From aa66d7bba7c25ab2aefad9dad01c485b04dc4cbe Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 29 Mar 2013 20:39:17 -0400 Subject: [PATCH 038/204] dgrp procfs fixes, part 1 proc_create() has shat upon fops argument when mode is S_IFDIR. Good thing, too, since fops passed to it is completely useless for any directory. Just use proc_mkdir(), damnit. Signed-off-by: Al Viro --- drivers/staging/dgrp/dgrp_specproc.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/staging/dgrp/dgrp_specproc.c b/drivers/staging/dgrp/dgrp_specproc.c index dddf8a2e396b..556cb3124da6 100644 --- a/drivers/staging/dgrp/dgrp_specproc.c +++ b/drivers/staging/dgrp/dgrp_specproc.c @@ -201,8 +201,7 @@ void dgrp_register_proc(void) /* * Register /proc/dgrp */ - dgrp_proc_dir_entry = proc_create("dgrp", S_IFDIR, NULL, - &dgrp_proc_file_ops); + dgrp_proc_dir_entry = proc_mkdir("dgrp", NULL); register_proc_table(dgrp_table, dgrp_proc_dir_entry); } From 878c68c6c2a28e3c3a62f723e0eaa2fd02297594 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 29 Mar 2013 20:45:38 -0400 Subject: [PATCH 039/204] dgrp procfs fixes, part 2 All table entries either have non-NULL ->proc_file_fops or non-NULL child. Signed-off-by: Al Viro --- drivers/staging/dgrp/dgrp_specproc.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/drivers/staging/dgrp/dgrp_specproc.c b/drivers/staging/dgrp/dgrp_specproc.c index 556cb3124da6..23b10f365bc3 100644 --- a/drivers/staging/dgrp/dgrp_specproc.c +++ b/drivers/staging/dgrp/dgrp_specproc.c @@ -269,10 +269,7 @@ static void register_proc_table(struct dgrp_proc_entry *table, de->data = (void *) table; if (!table->child) { de->proc_iops = &proc_inode_ops; - if (table->proc_file_ops) - de->proc_fops = table->proc_file_ops; - else - de->proc_fops = &dgrp_proc_file_ops; + de->proc_fops = table->proc_file_ops; } } table->de = de; From 772317b53b51e5895e953828c8ff4f06fecfad1c Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 29 Mar 2013 20:49:43 -0400 Subject: [PATCH 040/204] dgrp procfs fixes, part 3: kill dead code Signed-off-by: Al Viro --- drivers/staging/dgrp/dgrp_specproc.c | 63 ---------------------------- 1 file changed, 63 deletions(-) diff --git a/drivers/staging/dgrp/dgrp_specproc.c b/drivers/staging/dgrp/dgrp_specproc.c index 23b10f365bc3..1ccf10ce85cd 100644 --- a/drivers/staging/dgrp/dgrp_specproc.c +++ b/drivers/staging/dgrp/dgrp_specproc.c @@ -55,17 +55,9 @@ static void register_dgrp_device(struct nd_struct *node, void (*register_hook)(struct proc_dir_entry *de)); /* File operation declarations */ -static int dgrp_gen_proc_open(struct inode *, struct file *); -static int dgrp_gen_proc_close(struct inode *, struct file *); static int parse_write_config(char *); -static const struct file_operations dgrp_proc_file_ops = { - .owner = THIS_MODULE, - .open = dgrp_gen_proc_open, - .release = dgrp_gen_proc_close, -}; - static struct inode_operations proc_inode_ops = { .permission = dgrp_inode_permission }; @@ -347,61 +339,6 @@ static void unregister_proc_table(struct dgrp_proc_entry *table, } } -static int dgrp_gen_proc_open(struct inode *inode, struct file *file) -{ - struct proc_dir_entry *de; - struct dgrp_proc_entry *entry; - int ret = 0; - - de = (struct proc_dir_entry *) PDE(file_inode(file)); - if (!de || !de->data) { - ret = -ENXIO; - goto done; - } - - entry = (struct dgrp_proc_entry *) de->data; - if (!entry) { - ret = -ENXIO; - goto done; - } - - down(&entry->excl_sem); - - if (entry->excl_cnt) - ret = -EBUSY; - else - entry->excl_cnt++; - - up(&entry->excl_sem); - -done: - return ret; -} - -static int dgrp_gen_proc_close(struct inode *inode, struct file *file) -{ - struct proc_dir_entry *de; - struct dgrp_proc_entry *entry; - - de = (struct proc_dir_entry *) PDE(file_inode(file)); - if (!de || !de->data) - goto done; - - entry = (struct dgrp_proc_entry *) de->data; - if (!entry) - goto done; - - down(&entry->excl_sem); - - if (entry->excl_cnt) - entry->excl_cnt = 0; - - up(&entry->excl_sem); - -done: - return 0; -} - static void *dgrp_config_proc_start(struct seq_file *m, loff_t *pos) { return seq_list_start_head(&nd_struct_list, *pos); From 08f3d07ddd53ca3bf322ddebc0f8992e3112520f Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sat, 30 Mar 2013 00:36:23 -0400 Subject: [PATCH 041/204] dgrp procfs fixes, part 4: get rid of sysctl-like machinery racy and very overblown... Signed-off-by: Al Viro --- drivers/staging/dgrp/dgrp_common.h | 55 ------ drivers/staging/dgrp/dgrp_specproc.c | 257 +++++---------------------- 2 files changed, 42 insertions(+), 270 deletions(-) diff --git a/drivers/staging/dgrp/dgrp_common.h b/drivers/staging/dgrp/dgrp_common.h index fde116236e98..99e231c3c602 100644 --- a/drivers/staging/dgrp/dgrp_common.h +++ b/drivers/staging/dgrp/dgrp_common.h @@ -76,61 +76,6 @@ extern void dgrp_create_tty_sysfs(struct un_struct *un, struct device *c); extern void dgrp_remove_tty_sysfs(struct device *c); /* from dgrp_specproc.c */ -/* - * The list of DGRP entries with r/w capabilities. These - * magic numbers are used for identification purposes. - */ -enum { - DGRP_CONFIG = 1, /* Configure portservers */ - DGRP_NETDIR = 2, /* Directory for "net" devices */ - DGRP_MONDIR = 3, /* Directory for "mon" devices */ - DGRP_PORTSDIR = 4, /* Directory for "ports" devices */ - DGRP_INFO = 5, /* Get info. about the running module */ - DGRP_NODEINFO = 6, /* Get info. about the configured nodes */ - DGRP_DPADIR = 7, /* Directory for the "dpa" devices */ -}; - -/* - * Directions for proc handlers - */ -enum { - INBOUND = 1, /* Data being written to kernel */ - OUTBOUND = 2, /* Data being read from the kernel */ -}; - -/** - * dgrp_proc_entry: structure for dgrp proc dirs - * @id: ID number associated with this particular entry. Should be - * unique across all of DGRP. - * @name: text name associated with the /proc entry - * @mode: file access permisssions for the /proc entry - * @child: pointer to table describing a subdirectory for this entry - * @de: pointer to directory entry for this object once registered. Used - * to grab the handle of the object for unregistration - * @excl_sem: semaphore to provide exclusive to struct - * @excl_cnt: counter of current accesses - * - * Each entry in a DGRP proc directory is described with a - * dgrp_proc_entry structure. A collection of these - * entries (in an array) represents the members associated - * with a particular /proc directory, and is referred to - * as a table. All tables are terminated by an entry with - * zeros for every member. - */ -struct dgrp_proc_entry { - int id; /* Integer identifier */ - const char *name; /* ASCII identifier */ - umode_t mode; /* File access permissions */ - struct dgrp_proc_entry *child; /* Child pointer */ - - /* file ops to use, pass NULL to use default */ - struct file_operations *proc_file_ops; - - struct proc_dir_entry *de; /* proc entry pointer */ - struct semaphore excl_sem; /* Protects exclusive access var */ - int excl_cnt; /* Counts number of curr accesses */ -}; - extern void dgrp_unregister_proc(void); extern void dgrp_register_proc(void); diff --git a/drivers/staging/dgrp/dgrp_specproc.c b/drivers/staging/dgrp/dgrp_specproc.c index 1ccf10ce85cd..caf4faccf42d 100644 --- a/drivers/staging/dgrp/dgrp_specproc.c +++ b/drivers/staging/dgrp/dgrp_specproc.c @@ -44,7 +44,6 @@ #include "dgrp_common.h" -static struct dgrp_proc_entry dgrp_table[]; static struct proc_dir_entry *dgrp_proc_dir_entry; static int dgrp_add_id(long id); @@ -63,16 +62,6 @@ static struct inode_operations proc_inode_ops = { }; -static void register_proc_table(struct dgrp_proc_entry *, - struct proc_dir_entry *); -static void unregister_proc_table(struct dgrp_proc_entry *, - struct proc_dir_entry *); - -static struct dgrp_proc_entry dgrp_net_table[]; -static struct dgrp_proc_entry dgrp_mon_table[]; -static struct dgrp_proc_entry dgrp_ports_table[]; -static struct dgrp_proc_entry dgrp_dpa_table[]; - static ssize_t dgrp_config_proc_write(struct file *file, const char __user *buffer, size_t count, loff_t *pos); @@ -106,72 +95,11 @@ static struct file_operations nodeinfo_proc_file_ops = { .release = seq_release, }; -static struct dgrp_proc_entry dgrp_table[] = { - { - .id = DGRP_CONFIG, - .name = "config", - .mode = 0644, - .proc_file_ops = &config_proc_file_ops, - }, - { - .id = DGRP_INFO, - .name = "info", - .mode = 0644, - .proc_file_ops = &info_proc_file_ops, - }, - { - .id = DGRP_NODEINFO, - .name = "nodeinfo", - .mode = 0644, - .proc_file_ops = &nodeinfo_proc_file_ops, - }, - { - .id = DGRP_NETDIR, - .name = "net", - .mode = 0500, - .child = dgrp_net_table - }, - { - .id = DGRP_MONDIR, - .name = "mon", - .mode = 0500, - .child = dgrp_mon_table - }, - { - .id = DGRP_PORTSDIR, - .name = "ports", - .mode = 0500, - .child = dgrp_ports_table - }, - { - .id = DGRP_DPADIR, - .name = "dpa", - .mode = 0500, - .child = dgrp_dpa_table - } -}; - static struct proc_dir_entry *net_entry_pointer; static struct proc_dir_entry *mon_entry_pointer; static struct proc_dir_entry *dpa_entry_pointer; static struct proc_dir_entry *ports_entry_pointer; -static struct dgrp_proc_entry dgrp_net_table[] = { - {0} -}; - -static struct dgrp_proc_entry dgrp_mon_table[] = { - {0} -}; - -static struct dgrp_proc_entry dgrp_ports_table[] = { - {0} -}; - -static struct dgrp_proc_entry dgrp_dpa_table[] = { - {0} -}; - void dgrp_unregister_proc(void) { net_entry_pointer = NULL; @@ -180,163 +108,62 @@ void dgrp_unregister_proc(void) ports_entry_pointer = NULL; if (dgrp_proc_dir_entry) { - unregister_proc_table(dgrp_table, dgrp_proc_dir_entry); - remove_proc_entry(dgrp_proc_dir_entry->name, - dgrp_proc_dir_entry->parent); + struct nd_struct *nd; + list_for_each_entry(nd, &nd_struct_list, list) { + if (nd->nd_net_de) { + unregister_dgrp_device(nd->nd_net_de); + dgrp_remove_node_class_sysfs_files(nd); + } + + if (nd->nd_mon_de) + unregister_dgrp_device(nd->nd_mon_de); + + if (nd->nd_dpa_de) + unregister_dgrp_device(nd->nd_dpa_de); + + if (nd->nd_ports_de) + unregister_dgrp_device(nd->nd_ports_de); + } + remove_proc_entry("dgrp/config", NULL); + remove_proc_entry("dgrp/info", NULL); + remove_proc_entry("dgrp/nodeinfo", NULL); + remove_proc_entry("dgrp/net", NULL); + remove_proc_entry("dgrp/mon", NULL); + remove_proc_entry("dgrp/dpa", NULL); + remove_proc_entry("dgrp/ports", NULL); + remove_proc_entry("dgrp", NULL); dgrp_proc_dir_entry = NULL; } - } void dgrp_register_proc(void) { + struct proc_dir_entry *de; /* * Register /proc/dgrp */ dgrp_proc_dir_entry = proc_mkdir("dgrp", NULL); - register_proc_table(dgrp_table, dgrp_proc_dir_entry); -} - -/* - * /proc/sys support - */ -static int dgrp_proc_match(int len, const char *name, struct proc_dir_entry *de) -{ - if (!de || !de->low_ino) - return 0; - if (de->namelen != len) - return 0; - return !memcmp(name, de->name, len); -} - - -/* - * Scan the entries in table and add them all to /proc at the position - * referred to by "root" - */ -static void register_proc_table(struct dgrp_proc_entry *table, - struct proc_dir_entry *root) -{ - struct proc_dir_entry *de; - int len; - umode_t mode; - - if (table == NULL) + if (!dgrp_proc_dir_entry) return; - if (root == NULL) - return; - - for (; table->id; table++) { - /* Can't do anything without a proc name. */ - if (!table->name) - continue; - - /* Maybe we can't do anything with it... */ - if (!table->proc_file_ops && - !table->child) { - pr_warn("dgrp: Can't register %s\n", - table->name); - continue; - } - - len = strlen(table->name); - mode = table->mode; - - de = NULL; - if (!table->child) - mode |= S_IFREG; - else { - mode |= S_IFDIR; - for (de = root->subdir; de; de = de->next) { - if (dgrp_proc_match(len, table->name, de)) - break; - } - /* If the subdir exists already, de is non-NULL */ - } - - if (!de) { - de = create_proc_entry(table->name, mode, root); - if (!de) - continue; - de->data = (void *) table; - if (!table->child) { - de->proc_iops = &proc_inode_ops; - de->proc_fops = table->proc_file_ops; - } - } - table->de = de; - if (de->mode & S_IFDIR) - register_proc_table(table->child, de); - - if (table->id == DGRP_NETDIR) - net_entry_pointer = de; - - if (table->id == DGRP_MONDIR) - mon_entry_pointer = de; - - if (table->id == DGRP_DPADIR) - dpa_entry_pointer = de; - - if (table->id == DGRP_PORTSDIR) - ports_entry_pointer = de; + de = create_proc_entry("dgrp/config", 0644, NULL); + if (de) { + de->proc_fops = &config_proc_file_ops; + de->proc_iops = &proc_inode_ops; } -} - -/* - * Unregister a /proc sysctl table and any subdirectories. - */ -static void unregister_proc_table(struct dgrp_proc_entry *table, - struct proc_dir_entry *root) -{ - struct proc_dir_entry *de; - struct nd_struct *tmp; - - if (table == NULL) - return; - - list_for_each_entry(tmp, &nd_struct_list, list) { - if ((table == dgrp_net_table) && (tmp->nd_net_de)) { - unregister_dgrp_device(tmp->nd_net_de); - dgrp_remove_node_class_sysfs_files(tmp); - } - - if ((table == dgrp_mon_table) && (tmp->nd_mon_de)) - unregister_dgrp_device(tmp->nd_mon_de); - - if ((table == dgrp_dpa_table) && (tmp->nd_dpa_de)) - unregister_dgrp_device(tmp->nd_dpa_de); - - if ((table == dgrp_ports_table) && (tmp->nd_ports_de)) - unregister_dgrp_device(tmp->nd_ports_de); + de = create_proc_entry("dgrp/info", 0644, NULL); + if (de) { + de->proc_fops = &info_proc_file_ops; + de->proc_iops = &proc_inode_ops; } - - for (; table->id; table++) { - de = table->de; - - if (!de) - continue; - if (de->mode & S_IFDIR) { - if (!table->child) { - pr_alert("dgrp: malformed sysctl tree on free\n"); - continue; - } - unregister_proc_table(table->child, de); - - /* Don't unregister directories which still have entries */ - if (de->subdir) - continue; - } - - /* Don't unregister proc entries that are still being used.. */ - if ((atomic_read(&de->count)) != 1) { - pr_alert("proc entry %s in use, not removing\n", - de->name); - continue; - } - - remove_proc_entry(de->name, de->parent); - table->de = NULL; + de = create_proc_entry("dgrp/nodeinfo", 0644, NULL); + if (de) { + de->proc_fops = &nodeinfo_proc_file_ops; + de->proc_iops = &proc_inode_ops; } + net_entry_pointer = proc_mkdir_mode("dgrp/net", 0500, NULL); + mon_entry_pointer = proc_mkdir_mode("dgrp/mon", 0500, NULL); + dpa_entry_pointer = proc_mkdir_mode("dgrp/dpa", 0500, NULL); + ports_entry_pointer = proc_mkdir_mode("dgrp/ports", 0500, NULL); } static void *dgrp_config_proc_start(struct seq_file *m, loff_t *pos) From af064cdde64d58feb315dba268e1f8439fb935be Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sat, 30 Mar 2013 01:03:53 -0400 Subject: [PATCH 042/204] dgrp procfs fixes, part 5: per-node files this "hooks" scheme is pointless - just make file_operations non-static and consolidate initialiazation bits. Signed-off-by: Al Viro --- drivers/staging/dgrp/dgrp_common.h | 8 +-- drivers/staging/dgrp/dgrp_dpa_ops.c | 19 +----- drivers/staging/dgrp/dgrp_mon_ops.c | 16 +---- drivers/staging/dgrp/dgrp_net_ops.c | 19 +----- drivers/staging/dgrp/dgrp_ports_ops.c | 16 +---- drivers/staging/dgrp/dgrp_specproc.c | 96 +++++++++++---------------- 6 files changed, 45 insertions(+), 129 deletions(-) diff --git a/drivers/staging/dgrp/dgrp_common.h b/drivers/staging/dgrp/dgrp_common.h index 99e231c3c602..81fc9ae155a0 100644 --- a/drivers/staging/dgrp/dgrp_common.h +++ b/drivers/staging/dgrp/dgrp_common.h @@ -49,20 +49,20 @@ extern struct dgrp_poll_data dgrp_poll_data; extern void dgrp_poll_handler(unsigned long arg); /* from dgrp_mon_ops.c */ -extern void dgrp_register_mon_hook(struct proc_dir_entry *de); +extern const struct file_operations dgrp_mon_ops; /* from dgrp_tty.c */ extern int dgrp_tty_init(struct nd_struct *nd); extern void dgrp_tty_uninit(struct nd_struct *nd); /* from dgrp_ports_ops.c */ -extern void dgrp_register_ports_hook(struct proc_dir_entry *de); +extern const struct file_operations dgrp_ports_ops; /* from dgrp_net_ops.c */ -extern void dgrp_register_net_hook(struct proc_dir_entry *de); +extern const struct file_operations dgrp_net_ops; /* from dgrp_dpa_ops.c */ -extern void dgrp_register_dpa_hook(struct proc_dir_entry *de); +extern const struct file_operations dgrp_dpa_ops; extern void dgrp_dpa_data(struct nd_struct *, int, u8 *, int); /* from dgrp_sysfs.c */ diff --git a/drivers/staging/dgrp/dgrp_dpa_ops.c b/drivers/staging/dgrp/dgrp_dpa_ops.c index 021cca498f2c..cfa8e82404f9 100644 --- a/drivers/staging/dgrp/dgrp_dpa_ops.c +++ b/drivers/staging/dgrp/dgrp_dpa_ops.c @@ -52,7 +52,7 @@ static long dgrp_dpa_ioctl(struct file *file, unsigned int cmd, unsigned long arg); static unsigned int dgrp_dpa_select(struct file *, struct poll_table_struct *); -static const struct file_operations dpa_ops = { +const struct file_operations dgrp_dpa_ops = { .owner = THIS_MODULE, .read = dgrp_dpa_read, .poll = dgrp_dpa_select, @@ -61,12 +61,6 @@ static const struct file_operations dpa_ops = { .release = dgrp_dpa_release, }; -static struct inode_operations dpa_inode_ops = { - .permission = dgrp_inode_permission -}; - - - struct digi_node { uint nd_state; /* Node state: 1 = up, 0 = down. */ uint nd_chan_count; /* Number of channels found */ @@ -111,17 +105,6 @@ struct digi_debug { #define DIGI_SETDEBUG (('d'<<8) | 247) /* set debug info */ -void dgrp_register_dpa_hook(struct proc_dir_entry *de) -{ - struct nd_struct *node = de->data; - - de->proc_iops = &dpa_inode_ops; - de->proc_fops = &dpa_ops; - - node->nd_dpa_de = de; - spin_lock_init(&node->nd_dpa_lock); -} - /* * dgrp_dpa_open -- open the DPA device for a particular PortServer */ diff --git a/drivers/staging/dgrp/dgrp_mon_ops.c b/drivers/staging/dgrp/dgrp_mon_ops.c index 4792d056a365..52493b5c1673 100644 --- a/drivers/staging/dgrp/dgrp_mon_ops.c +++ b/drivers/staging/dgrp/dgrp_mon_ops.c @@ -49,7 +49,7 @@ static ssize_t dgrp_mon_read(struct file *, char __user *, size_t, loff_t *); static long dgrp_mon_ioctl(struct file *file, unsigned int cmd, unsigned long arg); -static const struct file_operations mon_ops = { +const struct file_operations dgrp_mon_ops = { .owner = THIS_MODULE, .read = dgrp_mon_read, .unlocked_ioctl = dgrp_mon_ioctl, @@ -57,20 +57,6 @@ static const struct file_operations mon_ops = { .release = dgrp_mon_release, }; -static struct inode_operations mon_inode_ops = { - .permission = dgrp_inode_permission -}; - -void dgrp_register_mon_hook(struct proc_dir_entry *de) -{ - struct nd_struct *node = de->data; - - de->proc_iops = &mon_inode_ops; - de->proc_fops = &mon_ops; - node->nd_mon_de = de; - sema_init(&node->nd_mon_semaphore, 1); -} - /** * dgrp_mon_open() -- open /proc/dgrp/ports device for a PortServer * @inode: struct inode * diff --git a/drivers/staging/dgrp/dgrp_net_ops.c b/drivers/staging/dgrp/dgrp_net_ops.c index e6018823b9de..dc826b2cf907 100644 --- a/drivers/staging/dgrp/dgrp_net_ops.c +++ b/drivers/staging/dgrp/dgrp_net_ops.c @@ -72,7 +72,7 @@ static long dgrp_net_ioctl(struct file *file, unsigned int cmd, static unsigned int dgrp_net_select(struct file *file, struct poll_table_struct *table); -static const struct file_operations net_ops = { +const struct file_operations dgrp_net_ops = { .owner = THIS_MODULE, .read = dgrp_net_read, .write = dgrp_net_write, @@ -82,23 +82,6 @@ static const struct file_operations net_ops = { .release = dgrp_net_release, }; -static struct inode_operations net_inode_ops = { - .permission = dgrp_inode_permission -}; - -void dgrp_register_net_hook(struct proc_dir_entry *de) -{ - struct nd_struct *node = de->data; - - de->proc_iops = &net_inode_ops; - de->proc_fops = &net_ops; - node->nd_net_de = de; - sema_init(&node->nd_net_semaphore, 1); - node->nd_state = NS_CLOSED; - dgrp_create_node_class_sysfs_files(node); -} - - /** * dgrp_dump() -- prints memory for debugging purposes. * @mem: Memory location which should be printed to the console diff --git a/drivers/staging/dgrp/dgrp_ports_ops.c b/drivers/staging/dgrp/dgrp_ports_ops.c index cd1fc2088624..48e9079c6355 100644 --- a/drivers/staging/dgrp/dgrp_ports_ops.c +++ b/drivers/staging/dgrp/dgrp_ports_ops.c @@ -47,7 +47,7 @@ /* File operation declarations */ static int dgrp_ports_open(struct inode *, struct file *); -static const struct file_operations ports_ops = { +const struct file_operations dgrp_ports_ops = { .owner = THIS_MODULE, .open = dgrp_ports_open, .read = seq_read, @@ -55,20 +55,6 @@ static const struct file_operations ports_ops = { .release = seq_release }; -static struct inode_operations ports_inode_ops = { - .permission = dgrp_inode_permission -}; - - -void dgrp_register_ports_hook(struct proc_dir_entry *de) -{ - struct nd_struct *node = de->data; - - de->proc_iops = &ports_inode_ops; - de->proc_fops = &ports_ops; - node->nd_ports_de = de; -} - static void *dgrp_ports_seq_start(struct seq_file *seq, loff_t *pos) { if (*pos == 0) diff --git a/drivers/staging/dgrp/dgrp_specproc.c b/drivers/staging/dgrp/dgrp_specproc.c index caf4faccf42d..22c5d0bfe104 100644 --- a/drivers/staging/dgrp/dgrp_specproc.c +++ b/drivers/staging/dgrp/dgrp_specproc.c @@ -48,10 +48,9 @@ static struct proc_dir_entry *dgrp_proc_dir_entry; static int dgrp_add_id(long id); static int dgrp_remove_nd(struct nd_struct *nd); -static void unregister_dgrp_device(struct proc_dir_entry *de); -static void register_dgrp_device(struct nd_struct *node, +static struct proc_dir_entry *add_proc_file(struct nd_struct *node, struct proc_dir_entry *root, - void (*register_hook)(struct proc_dir_entry *de)); + const struct file_operations *fops); /* File operation declarations */ static int parse_write_config(char *); @@ -100,6 +99,21 @@ static struct proc_dir_entry *mon_entry_pointer; static struct proc_dir_entry *dpa_entry_pointer; static struct proc_dir_entry *ports_entry_pointer; +static void remove_files(struct nd_struct *nd) +{ + char buf[3]; + ID_TO_CHAR(nd->nd_ID, buf); + dgrp_remove_node_class_sysfs_files(nd); + if (nd->nd_net_de) + remove_proc_entry(buf, net_entry_pointer); + if (nd->nd_mon_de) + remove_proc_entry(buf, mon_entry_pointer); + if (nd->nd_dpa_de) + remove_proc_entry(buf, dpa_entry_pointer); + if (nd->nd_ports_de) + remove_proc_entry(buf, ports_entry_pointer); +} + void dgrp_unregister_proc(void) { net_entry_pointer = NULL; @@ -109,21 +123,8 @@ void dgrp_unregister_proc(void) if (dgrp_proc_dir_entry) { struct nd_struct *nd; - list_for_each_entry(nd, &nd_struct_list, list) { - if (nd->nd_net_de) { - unregister_dgrp_device(nd->nd_net_de); - dgrp_remove_node_class_sysfs_files(nd); - } - - if (nd->nd_mon_de) - unregister_dgrp_device(nd->nd_mon_de); - - if (nd->nd_dpa_de) - unregister_dgrp_device(nd->nd_dpa_de); - - if (nd->nd_ports_de) - unregister_dgrp_device(nd->nd_ports_de); - } + list_for_each_entry(nd, &nd_struct_list, list) + remove_files(nd); remove_proc_entry("dgrp/config", NULL); remove_proc_entry("dgrp/info", NULL); remove_proc_entry("dgrp/nodeinfo", NULL); @@ -494,6 +495,10 @@ static int dgrp_add_id(long id) init_waitqueue_head(&nd->nd_tx_waitq); init_waitqueue_head(&nd->nd_mon_wqueue); init_waitqueue_head(&nd->nd_dpa_wqueue); + sema_init(&nd->nd_mon_semaphore, 1); + sema_init(&nd->nd_net_semaphore, 1); + spin_lock_init(&nd->nd_dpa_lock); + nd->nd_state = NS_CLOSED; for (i = 0; i < SEQ_MAX; i++) init_waitqueue_head(&nd->nd_seq_wque[i]); @@ -508,12 +513,12 @@ static int dgrp_add_id(long id) if (ret) goto error_out; - register_dgrp_device(nd, net_entry_pointer, dgrp_register_net_hook); - register_dgrp_device(nd, mon_entry_pointer, dgrp_register_mon_hook); - register_dgrp_device(nd, dpa_entry_pointer, dgrp_register_dpa_hook); - register_dgrp_device(nd, ports_entry_pointer, - dgrp_register_ports_hook); - + dgrp_create_node_class_sysfs_files(nd); + nd->nd_net_de = add_proc_file(nd, net_entry_pointer, &dgrp_net_ops); + nd->nd_mon_de = add_proc_file(nd, mon_entry_pointer, &dgrp_mon_ops); + nd->nd_dpa_de = add_proc_file(nd, dpa_entry_pointer, &dgrp_dpa_ops); + nd->nd_ports_de = add_proc_file(nd, ports_entry_pointer, + &dgrp_ports_ops); return 0; /* FIXME this guy should free the tty driver stored in nd and destroy @@ -532,16 +537,7 @@ static int dgrp_remove_nd(struct nd_struct *nd) if (nd->nd_tty_ref_cnt) return -EBUSY; - if (nd->nd_net_de) { - unregister_dgrp_device(nd->nd_net_de); - dgrp_remove_node_class_sysfs_files(nd); - } - - unregister_dgrp_device(nd->nd_mon_de); - - unregister_dgrp_device(nd->nd_ports_de); - - unregister_dgrp_device(nd->nd_dpa_de); + remove_files(nd); dgrp_tty_uninit(nd); @@ -553,9 +549,9 @@ static int dgrp_remove_nd(struct nd_struct *nd) return 0; } -static void register_dgrp_device(struct nd_struct *node, +static struct proc_dir_entry *add_proc_file(struct nd_struct *node, struct proc_dir_entry *root, - void (*register_hook)(struct proc_dir_entry *de)) + const struct file_operations *fops) { char buf[3]; struct proc_dir_entry *de; @@ -563,28 +559,10 @@ static void register_dgrp_device(struct nd_struct *node, ID_TO_CHAR(node->nd_ID, buf); de = create_proc_entry(buf, 0600 | S_IFREG, root); - if (!de) - return; - - de->data = (void *) node; - - if (register_hook) - register_hook(de); - -} - -static void unregister_dgrp_device(struct proc_dir_entry *de) -{ - if (!de) - return; - - /* Don't unregister proc entries that are still being used.. */ - if ((atomic_read(&de->count)) != 1) { - pr_alert("%s - proc entry %s in use. Not removing.\n", - __func__, de->name); - return; + if (de) { + de->data = (void *) node; + de->proc_fops = fops; + de->proc_iops = &proc_inode_ops; } - - remove_proc_entry(de->name, de->parent); - de = NULL; + return de; } From 895b5599ba20cb663af9281050dc83cd7ae91843 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sat, 30 Mar 2013 01:07:56 -0400 Subject: [PATCH 043/204] dgrp procfs fixes, part 6: just use proc_create{,_data} ->permission() of its own is a rudiment of sysctl imitation; normal procfs logics will do just fine here, no need to mess with ->proc_iops at all. Signed-off-by: Al Viro --- drivers/staging/dgrp/dgrp_common.c | 31 ------------------------ drivers/staging/dgrp/dgrp_common.h | 2 -- drivers/staging/dgrp/dgrp_specproc.c | 36 ++++------------------------ 3 files changed, 4 insertions(+), 65 deletions(-) diff --git a/drivers/staging/dgrp/dgrp_common.c b/drivers/staging/dgrp/dgrp_common.c index 3553998b72bc..9a9b45624ba9 100644 --- a/drivers/staging/dgrp/dgrp_common.c +++ b/drivers/staging/dgrp/dgrp_common.c @@ -167,34 +167,3 @@ void dgrp_carrier(struct ch_struct *ch) ch->ch_flag &= ~CH_PHYS_CD; } - -/** - * dgrp_chk_perm() -- check permissions for net device - * @inode: pointer to inode structure for the net communication device - * @op: operation to be tested - * - * The file permissions and ownerships are tested to determine whether - * the operation "op" is permitted on the file pointed to by the inode. - * Returns 0 if the operation is permitted, -EACCESS otherwise - */ -int dgrp_chk_perm(int mode, int op) -{ - if (!uid_eq(GLOBAL_ROOT_UID, current_euid())) - mode >>= 6; - else if (in_egroup_p(GLOBAL_ROOT_GID)) - mode >>= 3; - - if ((mode & op & 0007) == op) - return 0; - - if (capable(CAP_SYS_ADMIN)) - return 0; - - return -EACCES; -} - -/* dgrp_chk_perm wrapper for permission call in struct inode_operations */ -int dgrp_inode_permission(struct inode *inode, int op) -{ - return dgrp_chk_perm(inode->i_mode, op); -} diff --git a/drivers/staging/dgrp/dgrp_common.h b/drivers/staging/dgrp/dgrp_common.h index 81fc9ae155a0..076dd6bc5ac4 100644 --- a/drivers/staging/dgrp/dgrp_common.h +++ b/drivers/staging/dgrp/dgrp_common.h @@ -89,8 +89,6 @@ extern void dgrp_register_proc(void); *-----------------------------------------------------------------------*/ void dgrp_carrier(struct ch_struct *ch); -extern int dgrp_inode_permission(struct inode *inode, int op); -extern int dgrp_chk_perm(int mode, int op); /* diff --git a/drivers/staging/dgrp/dgrp_specproc.c b/drivers/staging/dgrp/dgrp_specproc.c index 22c5d0bfe104..99c993b13378 100644 --- a/drivers/staging/dgrp/dgrp_specproc.c +++ b/drivers/staging/dgrp/dgrp_specproc.c @@ -55,12 +55,6 @@ static struct proc_dir_entry *add_proc_file(struct nd_struct *node, /* File operation declarations */ static int parse_write_config(char *); - -static struct inode_operations proc_inode_ops = { - .permission = dgrp_inode_permission -}; - - static ssize_t dgrp_config_proc_write(struct file *file, const char __user *buffer, size_t count, loff_t *pos); @@ -139,28 +133,15 @@ void dgrp_unregister_proc(void) void dgrp_register_proc(void) { - struct proc_dir_entry *de; /* * Register /proc/dgrp */ dgrp_proc_dir_entry = proc_mkdir("dgrp", NULL); if (!dgrp_proc_dir_entry) return; - de = create_proc_entry("dgrp/config", 0644, NULL); - if (de) { - de->proc_fops = &config_proc_file_ops; - de->proc_iops = &proc_inode_ops; - } - de = create_proc_entry("dgrp/info", 0644, NULL); - if (de) { - de->proc_fops = &info_proc_file_ops; - de->proc_iops = &proc_inode_ops; - } - de = create_proc_entry("dgrp/nodeinfo", 0644, NULL); - if (de) { - de->proc_fops = &nodeinfo_proc_file_ops; - de->proc_iops = &proc_inode_ops; - } + proc_create("dgrp/config", 0644, NULL, &config_proc_file_ops); + proc_create("dgrp/info", 0644, NULL, &info_proc_file_ops); + proc_create("dgrp/nodeinfo", 0644, NULL, &nodeinfo_proc_file_ops); net_entry_pointer = proc_mkdir_mode("dgrp/net", 0500, NULL); mon_entry_pointer = proc_mkdir_mode("dgrp/mon", 0500, NULL); dpa_entry_pointer = proc_mkdir_mode("dgrp/dpa", 0500, NULL); @@ -554,15 +535,6 @@ static struct proc_dir_entry *add_proc_file(struct nd_struct *node, const struct file_operations *fops) { char buf[3]; - struct proc_dir_entry *de; - ID_TO_CHAR(node->nd_ID, buf); - - de = create_proc_entry(buf, 0600 | S_IFREG, root); - if (de) { - de->data = (void *) node; - de->proc_fops = fops; - de->proc_iops = &proc_inode_ops; - } - return de; + return proc_create_data(buf, 0600, root, fops, node); } From 5a787a682047fbf5d250b0c2aed572fb6b7104d6 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sat, 30 Mar 2013 13:13:39 -0400 Subject: [PATCH 044/204] rtl8192u: don't play with reassigning ->proc_fops, just use proc_create() Signed-off-by: Al Viro --- drivers/staging/rtl8192u/ieee80211/proc.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) diff --git a/drivers/staging/rtl8192u/ieee80211/proc.c b/drivers/staging/rtl8192u/ieee80211/proc.c index 6eda928e4090..54026a412ca4 100644 --- a/drivers/staging/rtl8192u/ieee80211/proc.c +++ b/drivers/staging/rtl8192u/ieee80211/proc.c @@ -108,9 +108,5 @@ static struct file_operations proc_crypto_ops = { void __init crypto_init_proc(void) { - struct proc_dir_entry *proc; - - proc = create_proc_entry("crypto", 0, NULL); - if (proc) - proc->proc_fops = &proc_crypto_ops; + proc_create("crypto", 0, NULL, &proc_crypto_ops); } From 96e7d9158f5ae91accb9c81cca14bcd0c996c0cc Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sat, 30 Mar 2013 13:15:27 -0400 Subject: [PATCH 045/204] isp1362-hcd: don't reimplement proc_create_data() ... especially in a racy way Signed-off-by: Al Viro --- drivers/usb/host/isp1362-hcd.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/drivers/usb/host/isp1362-hcd.c b/drivers/usb/host/isp1362-hcd.c index 974480c516fa..9137caadb1c8 100644 --- a/drivers/usb/host/isp1362-hcd.c +++ b/drivers/usb/host/isp1362-hcd.c @@ -2192,14 +2192,11 @@ static void create_debug_file(struct isp1362_hcd *isp1362_hcd) { struct proc_dir_entry *pde; - pde = create_proc_entry(proc_filename, 0, NULL); + pde = proc_create_data(proc_filename, 0, NULL, &proc_ops, isp1362_hcd); if (pde == NULL) { pr_warning("%s: Failed to create debug file '%s'\n", __func__, proc_filename); return; } - - pde->proc_fops = &proc_ops; - pde->data = isp1362_hcd; isp1362_hcd->pde = pde; } From e784788ddb7000dbea8bd2986a3f83c4d77f96ff Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sat, 30 Mar 2013 13:26:37 -0400 Subject: [PATCH 046/204] get rid of a bunch of open-coded create_proc_read_entry() Signed-off-by: Al Viro --- arch/arm/kernel/swp_emulate.c | 5 ++--- arch/cris/arch-v10/kernel/fasttimer.c | 4 +--- arch/cris/arch-v32/kernel/fasttimer.c | 5 +---- arch/h8300/kernel/gpio.c | 5 ++--- drivers/char/ds1620.c | 7 +++---- drivers/staging/comedi/proc.c | 7 ++----- 6 files changed, 11 insertions(+), 22 deletions(-) diff --git a/arch/arm/kernel/swp_emulate.c b/arch/arm/kernel/swp_emulate.c index ab1017bd1667..0bba47ada5bd 100644 --- a/arch/arm/kernel/swp_emulate.c +++ b/arch/arm/kernel/swp_emulate.c @@ -268,12 +268,11 @@ static int __init swp_emulation_init(void) #ifdef CONFIG_PROC_FS struct proc_dir_entry *res; - res = create_proc_entry("cpu/swp_emulation", S_IRUGO, NULL); + res = create_proc_read_entry("cpu/swp_emulation", S_IRUGO, NULL, + proc_read_status, NULL); if (!res) return -ENOMEM; - - res->read_proc = proc_read_status; #endif /* CONFIG_PROC_FS */ printk(KERN_NOTICE "Registering SWP/SWPB emulation handler\n"); diff --git a/arch/cris/arch-v10/kernel/fasttimer.c b/arch/cris/arch-v10/kernel/fasttimer.c index 082f1890bacb..52bb9b5531e1 100644 --- a/arch/cris/arch-v10/kernel/fasttimer.c +++ b/arch/cris/arch-v10/kernel/fasttimer.c @@ -491,7 +491,6 @@ void schedule_usleep(unsigned long us) #ifdef CONFIG_PROC_FS static int proc_fasttimer_read(char *buf, char **start, off_t offset, int len ,int *eof, void *data_unused); -static struct proc_dir_entry *fasttimer_proc_entry; #endif /* CONFIG_PROC_FS */ #ifdef CONFIG_PROC_FS @@ -857,8 +856,7 @@ int fast_timer_init(void) } #endif #ifdef CONFIG_PROC_FS - if ((fasttimer_proc_entry = create_proc_entry( "fasttimer", 0, 0 ))) - fasttimer_proc_entry->read_proc = proc_fasttimer_read; + create_proc_read_entry("fasttimer", 0, NULL, proc_fasttimer_read, NULL); #endif /* PROC_FS */ if(request_irq(TIMER1_IRQ_NBR, timer1_handler, 0, "fast timer int", NULL)) diff --git a/arch/cris/arch-v32/kernel/fasttimer.c b/arch/cris/arch-v32/kernel/fasttimer.c index ab1551ee43c5..dd1c998070e9 100644 --- a/arch/cris/arch-v32/kernel/fasttimer.c +++ b/arch/cris/arch-v32/kernel/fasttimer.c @@ -465,7 +465,6 @@ void schedule_usleep(unsigned long us) #ifdef CONFIG_PROC_FS static int proc_fasttimer_read(char *buf, char **start, off_t offset, int len ,int *eof, void *data_unused); -static struct proc_dir_entry *fasttimer_proc_entry; #endif /* CONFIG_PROC_FS */ #ifdef CONFIG_PROC_FS @@ -816,9 +815,7 @@ int fast_timer_init(void) printk("fast_timer_init()\n"); #ifdef CONFIG_PROC_FS - fasttimer_proc_entry = create_proc_entry("fasttimer", 0, 0); - if (fasttimer_proc_entry) - fasttimer_proc_entry->read_proc = proc_fasttimer_read; + create_proc_read_entry("fasttimer", 0, NULL, proc_fasttimer_read, NULL); #endif /* PROC_FS */ if (request_irq(TIMER0_INTR_VECT, timer_trig_interrupt, IRQF_SHARED | IRQF_DISABLED, diff --git a/arch/h8300/kernel/gpio.c b/arch/h8300/kernel/gpio.c index 6a25dd5530e7..f8a4f5b52697 100644 --- a/arch/h8300/kernel/gpio.c +++ b/arch/h8300/kernel/gpio.c @@ -158,9 +158,8 @@ static __init int register_proc(void) { struct proc_dir_entry *proc_gpio; - proc_gpio = create_proc_entry("gpio", S_IRUGO, NULL); - if (proc_gpio) - proc_gpio->read_proc = gpio_proc_read; + proc_gpio = create_proc_read_entry("gpio", S_IRUGO, NULL, + gpio_proc_read, NULL); return proc_gpio != NULL; } diff --git a/drivers/char/ds1620.c b/drivers/char/ds1620.c index 24ffd8cec51e..b599fae698df 100644 --- a/drivers/char/ds1620.c +++ b/drivers/char/ds1620.c @@ -397,10 +397,9 @@ static int __init ds1620_init(void) return ret; #ifdef THERM_USE_PROC - proc_therm_ds1620 = create_proc_entry("therm", 0, NULL); - if (proc_therm_ds1620) - proc_therm_ds1620->read_proc = proc_therm_ds1620_read; - else + proc_therm_ds1620 = create_proc_read_entry("therm", 0, NULL, + proc_therm_ds1620_read, NULL); + if (!proc_therm_ds1620) printk(KERN_ERR "therm: unable to register /proc/therm\n"); #endif diff --git a/drivers/staging/comedi/proc.c b/drivers/staging/comedi/proc.c index 362c214bcc0b..f01e0cccac3b 100644 --- a/drivers/staging/comedi/proc.c +++ b/drivers/staging/comedi/proc.c @@ -80,11 +80,8 @@ static int comedi_read(char *buf, char **start, off_t offset, int len, void comedi_proc_init(void) { - struct proc_dir_entry *comedi_proc; - - comedi_proc = create_proc_entry("comedi", S_IFREG | S_IRUGO, NULL); - if (comedi_proc) - comedi_proc->read_proc = comedi_read; + create_proc_read_entry("comedi", S_IFREG | S_IRUGO, NULL, + comedi_read, NULL); } void comedi_proc_cleanup(void) From 7e1be8a5011d6be1d16e44b2f7ff8c610263f4b3 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sat, 30 Mar 2013 15:41:56 -0400 Subject: [PATCH 047/204] silicom: helper functions are often useful... Signed-off-by: Al Viro --- drivers/staging/silicom/bp_mod.c | 323 ++++--------------------------- 1 file changed, 43 insertions(+), 280 deletions(-) diff --git a/drivers/staging/silicom/bp_mod.c b/drivers/staging/silicom/bp_mod.c index 58c5f5cf4cec..cae901858b38 100644 --- a/drivers/staging/silicom/bp_mod.c +++ b/drivers/staging/silicom/bp_mod.c @@ -7541,22 +7541,17 @@ get_wd_set_caps_pfs(char *page, char **start, off_t off, int count, return len; } -int -set_bypass_pfs(struct file *file, const char *buffer, - unsigned long count, void *data) +static int user_on_off(const void __user *buffer, size_t count) { char kbuf[256]; - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int bypass_param = 0, length = 0; + int length = 0; if (count > (sizeof(kbuf) - 1)) return -1; - if (copy_from_user(&kbuf, buffer, count)) { + if (copy_from_user(&kbuf, buffer, count)) return -1; - } kbuf[count] = '\0'; length = strlen(kbuf); @@ -7564,12 +7559,22 @@ set_bypass_pfs(struct file *file, const char *buffer, kbuf[--length] = '\0'; if (strcmp(kbuf, "on") == 0) - bypass_param = 1; - else if (strcmp(kbuf, "off") == 0) - bypass_param = 0; + return 1; + if (strcmp(kbuf, "off") == 0) + return 0; + return 0; +} + +int +set_bypass_pfs(struct file *file, const char *buffer, + unsigned long count, void *data) +{ + bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; + int bypass_param = user_on_off(buffer, count); + if (bypass_param < 0) + return -1; set_bypass_fn(pbp_device_block, bypass_param); - return count; } @@ -7578,30 +7583,12 @@ set_tap_pfs(struct file *file, const char *buffer, unsigned long count, void *data) { - char kbuf[256]; bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int tap_param = 0, length = 0; - - if (count > (sizeof(kbuf) - 1)) + int tap_param = user_on_off(buffer, count); + if (tap_param < 0) return -1; - if (copy_from_user(&kbuf, buffer, count)) { - return -1; - } - - kbuf[count] = '\0'; - length = strlen(kbuf); - if (kbuf[length - 1] == '\n') - kbuf[--length] = '\0'; - - if (strcmp(kbuf, "on") == 0) - tap_param = 1; - else if (strcmp(kbuf, "off") == 0) - tap_param = 0; - set_tap_fn(pbp_device_block, tap_param); - return count; } @@ -7610,30 +7597,12 @@ set_disc_pfs(struct file *file, const char *buffer, unsigned long count, void *data) { - char kbuf[256]; bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int tap_param = 0, length = 0; - - if (count > (sizeof(kbuf) - 1)) + int tap_param = user_on_off(buffer, count); + if (tap_param < 0) return -1; - if (copy_from_user(&kbuf, buffer, count)) { - return -1; - } - - kbuf[count] = '\0'; - length = strlen(kbuf); - if (kbuf[length - 1] == '\n') - kbuf[--length] = '\0'; - - if (strcmp(kbuf, "on") == 0) - tap_param = 1; - else if (strcmp(kbuf, "off") == 0) - tap_param = 0; - set_disc_fn(pbp_device_block, tap_param); - return count; } @@ -7914,30 +7883,12 @@ set_dis_bypass_pfs(struct file *file, const char *buffer, unsigned long count, void *data) { - char kbuf[256]; bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int bypass_param = 0, length = 0; - - if (count >= sizeof(kbuf)) + int bypass_param = user_on_off(buffer, count); + if (bypass_param < 0) return -EINVAL; - if (copy_from_user(&kbuf, buffer, count)) { - return -1; - } - - kbuf[count] = '\0'; - length = strlen(kbuf); - if (kbuf[length - 1] == '\n') - kbuf[--length] = '\0'; - - if (strcmp(kbuf, "on") == 0) - bypass_param = 1; - else if (strcmp(kbuf, "off") == 0) - bypass_param = 0; - set_dis_bypass_fn(pbp_device_block, bypass_param); - return count; } @@ -7946,30 +7897,12 @@ set_dis_tap_pfs(struct file *file, const char *buffer, unsigned long count, void *data) { - char kbuf[256]; bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int tap_param = 0, length = 0; - - if (count >= sizeof(kbuf)) + int tap_param = user_on_off(buffer, count); + if (tap_param < 0) return -EINVAL; - if (copy_from_user(&kbuf, buffer, count)) { - return -1; - } - - kbuf[count] = '\0'; - length = strlen(kbuf); - if (kbuf[length - 1] == '\n') - kbuf[--length] = '\0'; - - if (strcmp(kbuf, "on") == 0) - tap_param = 1; - else if (strcmp(kbuf, "off") == 0) - tap_param = 0; - set_dis_tap_fn(pbp_device_block, tap_param); - return count; } @@ -7978,30 +7911,12 @@ set_dis_disc_pfs(struct file *file, const char *buffer, unsigned long count, void *data) { - char kbuf[256]; bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int tap_param = 0, length = 0; - - if (count >= sizeof(kbuf)) + int tap_param = user_on_off(buffer, count); + if (tap_param < 0) return -EINVAL; - if (copy_from_user(&kbuf, buffer, count)) { - return -1; - } - - kbuf[count] = '\0'; - length = strlen(kbuf); - if (kbuf[length - 1] == '\n') - kbuf[--length] = '\0'; - - if (strcmp(kbuf, "on") == 0) - tap_param = 1; - else if (strcmp(kbuf, "off") == 0) - tap_param = 0; - set_dis_disc_fn(pbp_device_block, tap_param); - return count; } @@ -8069,31 +7984,12 @@ int set_bypass_pwup_pfs(struct file *file, const char *buffer, unsigned long count, void *data) { - - char kbuf[256]; bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int bypass_param = 0, length = 0; - - if (count >= sizeof(kbuf)) + int bypass_param = user_on_off(buffer, count); + if (bypass_param < 0) return -EINVAL; - if (copy_from_user(&kbuf, buffer, count)) { - return -1; - } - - kbuf[count] = '\0'; - length = strlen(kbuf); - if (kbuf[length - 1] == '\n') - kbuf[--length] = '\0'; - - if (strcmp(kbuf, "on") == 0) - bypass_param = 1; - else if (strcmp(kbuf, "off") == 0) - bypass_param = 0; - set_bypass_pwup_fn(pbp_device_block, bypass_param); - return count; } @@ -8101,31 +7997,12 @@ int set_bypass_pwoff_pfs(struct file *file, const char *buffer, unsigned long count, void *data) { - - char kbuf[256]; bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int bypass_param = 0, length = 0; - - if (count >= sizeof(kbuf)) + int bypass_param = user_on_off(buffer, count); + if (bypass_param < 0) return -EINVAL; - if (copy_from_user(&kbuf, buffer, count)) { - return -1; - } - - kbuf[count] = '\0'; - length = strlen(kbuf); - if (kbuf[length - 1] == '\n') - kbuf[--length] = '\0'; - - if (strcmp(kbuf, "on") == 0) - bypass_param = 1; - else if (strcmp(kbuf, "off") == 0) - bypass_param = 0; - set_bypass_pwoff_fn(pbp_device_block, bypass_param); - return count; } @@ -8133,31 +8010,12 @@ int set_tap_pwup_pfs(struct file *file, const char *buffer, unsigned long count, void *data) { - - char kbuf[256]; bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int tap_param = 0, length = 0; - - if (count >= sizeof(kbuf)) + int tap_param = user_on_off(buffer, count); + if (tap_param < 0) return -EINVAL; - if (copy_from_user(&kbuf, buffer, count)) { - return -1; - } - - kbuf[count] = '\0'; - length = strlen(kbuf); - if (kbuf[length - 1] == '\n') - kbuf[--length] = '\0'; - - if (strcmp(kbuf, "on") == 0) - tap_param = 1; - else if (strcmp(kbuf, "off") == 0) - tap_param = 0; - set_tap_pwup_fn(pbp_device_block, tap_param); - return count; } @@ -8165,31 +8023,12 @@ int set_disc_pwup_pfs(struct file *file, const char *buffer, unsigned long count, void *data) { - - char kbuf[256]; bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int tap_param = 0, length = 0; - - if (count >= sizeof(kbuf)) + int tap_param = user_on_off(buffer, count); + if (tap_param < 0) return -EINVAL; - if (copy_from_user(&kbuf, buffer, count)) { - return -1; - } - - kbuf[count] = '\0'; - length = strlen(kbuf); - if (kbuf[length - 1] == '\n') - kbuf[--length] = '\0'; - - if (strcmp(kbuf, "on") == 0) - tap_param = 1; - else if (strcmp(kbuf, "off") == 0) - tap_param = 0; - set_disc_pwup_fn(pbp_device_block, tap_param); - return count; } @@ -8277,31 +8116,12 @@ int set_std_nic_pfs(struct file *file, const char *buffer, unsigned long count, void *data) { - - char kbuf[256]; bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int bypass_param = 0, length = 0; - - if (count >= sizeof(kbuf)) + int bypass_param = user_on_off(buffer, count); + if (bypass_param < 0) return -EINVAL; - if (copy_from_user(&kbuf, buffer, count)) { - return -1; - } - - kbuf[count] = '\0'; - length = strlen(kbuf); - if (kbuf[length - 1] == '\n') - kbuf[--length] = '\0'; - - if (strcmp(kbuf, "on") == 0) - bypass_param = 1; - else if (strcmp(kbuf, "off") == 0) - bypass_param = 0; - set_std_nic_fn(pbp_device_block, bypass_param); - return count; } @@ -8420,31 +8240,12 @@ int set_tpl_pfs(struct file *file, const char *buffer, unsigned long count, void *data) { - - char kbuf[256]; bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int tpl_param = 0, length = 0; - - if (count > (sizeof(kbuf) - 1)) + int tpl_param = user_on_off(buffer, count); + if (tpl_param < 0) return -1; - if (copy_from_user(&kbuf, buffer, count)) { - return -1; - } - - kbuf[count] = '\0'; - length = strlen(kbuf); - if (kbuf[length - 1] == '\n') - kbuf[--length] = '\0'; - - if (strcmp(kbuf, "on") == 0) - tpl_param = 1; - else if (strcmp(kbuf, "off") == 0) - tpl_param = 0; - set_tpl_fn(pbp_device_block, tpl_param); - return count; } @@ -8453,31 +8254,12 @@ int set_wait_at_pwup_pfs(struct file *file, const char *buffer, unsigned long count, void *data) { - - char kbuf[256]; bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int tpl_param = 0, length = 0; - - if (count > (sizeof(kbuf) - 1)) + int tpl_param = user_on_off(buffer, count); + if (tpl_param < 0) return -1; - if (copy_from_user(&kbuf, buffer, count)) { - return -1; - } - - kbuf[count] = '\0'; - length = strlen(kbuf); - if (kbuf[length - 1] == '\n') - kbuf[--length] = '\0'; - - if (strcmp(kbuf, "on") == 0) - tpl_param = 1; - else if (strcmp(kbuf, "off") == 0) - tpl_param = 0; - set_bp_wait_at_pwup_fn(pbp_device_block, tpl_param); - return count; } @@ -8485,31 +8267,12 @@ int set_hw_reset_pfs(struct file *file, const char *buffer, unsigned long count, void *data) { - - char kbuf[256]; bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int tpl_param = 0, length = 0; - - if (count > (sizeof(kbuf) - 1)) + int tpl_param = user_on_off(buffer, count); + if (tpl_param < 0) return -1; - if (copy_from_user(&kbuf, buffer, count)) { - return -1; - } - - kbuf[count] = '\0'; - length = strlen(kbuf); - if (kbuf[length - 1] == '\n') - kbuf[--length] = '\0'; - - if (strcmp(kbuf, "on") == 0) - tpl_param = 1; - else if (strcmp(kbuf, "off") == 0) - tpl_param = 0; - set_bp_hw_reset_fn(pbp_device_block, tpl_param); - return count; } From fb8004d39bebfcc8b6b0a4263c712cee5b0f2a54 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sat, 30 Mar 2013 16:07:02 -0400 Subject: [PATCH 048/204] silicom: unobfuscate get_{status,master}_port_fn() Signed-off-by: Al Viro --- drivers/staging/silicom/bp_mod.c | 67 +++++++++----------------------- 1 file changed, 19 insertions(+), 48 deletions(-) diff --git a/drivers/staging/silicom/bp_mod.c b/drivers/staging/silicom/bp_mod.c index cae901858b38..5392df316fb9 100644 --- a/drivers/staging/silicom/bp_mod.c +++ b/drivers/staging/silicom/bp_mod.c @@ -1728,62 +1728,33 @@ int gpio6_clear_fn(bpctl_dev_t *pbpctl_dev) } #endif /*BYPASS_DEBUG */ +static bpctl_dev_t *lookup_port(bpctl_dev_t *dev) +{ + bpctl_dev_t *p; + int n; + for (n = 0, p = bpctl_dev_arr; n < device_num && p->pdev; n++) { + if (p->bus == dev->bus + && p->slot == dev->slot + && p->func == (dev->func ^ 1)) + return p; + } + return NULL; +} + static bpctl_dev_t *get_status_port_fn(bpctl_dev_t *pbpctl_dev) { - int idx_dev = 0; - - if (pbpctl_dev == NULL) - return NULL; - - if ((pbpctl_dev->func == 0) || (pbpctl_dev->func == 2)) { - for (idx_dev = 0; - ((bpctl_dev_arr[idx_dev].pdev != NULL) - && (idx_dev < device_num)); idx_dev++) { - if ((bpctl_dev_arr[idx_dev].bus == pbpctl_dev->bus) - && (bpctl_dev_arr[idx_dev].slot == pbpctl_dev->slot) - && ((bpctl_dev_arr[idx_dev].func == 1) - && (pbpctl_dev->func == 0))) { - - return &(bpctl_dev_arr[idx_dev]); - } - if ((bpctl_dev_arr[idx_dev].bus == pbpctl_dev->bus) && - (bpctl_dev_arr[idx_dev].slot == pbpctl_dev->slot) && - ((bpctl_dev_arr[idx_dev].func == 3) - && (pbpctl_dev->func == 2))) { - - return &(bpctl_dev_arr[idx_dev]); - } - } + if (pbpctl_dev) { + if (pbpctl_dev->func == 0 || pbpctl_dev->func == 2) + return lookup_port(pbpctl_dev); } return NULL; } static bpctl_dev_t *get_master_port_fn(bpctl_dev_t *pbpctl_dev) { - int idx_dev = 0; - - if (pbpctl_dev == NULL) - return NULL; - - if ((pbpctl_dev->func == 1) || (pbpctl_dev->func == 3)) { - for (idx_dev = 0; - ((bpctl_dev_arr[idx_dev].pdev != NULL) - && (idx_dev < device_num)); idx_dev++) { - if ((bpctl_dev_arr[idx_dev].bus == pbpctl_dev->bus) - && (bpctl_dev_arr[idx_dev].slot == pbpctl_dev->slot) - && ((bpctl_dev_arr[idx_dev].func == 0) - && (pbpctl_dev->func == 1))) { - - return &(bpctl_dev_arr[idx_dev]); - } - if ((bpctl_dev_arr[idx_dev].bus == pbpctl_dev->bus) && - (bpctl_dev_arr[idx_dev].slot == pbpctl_dev->slot) && - ((bpctl_dev_arr[idx_dev].func == 2) - && (pbpctl_dev->func == 3))) { - - return &(bpctl_dev_arr[idx_dev]); - } - } + if (pbpctl_dev) { + if (pbpctl_dev->func == 1 || pbpctl_dev->func == 3) + return lookup_port(pbpctl_dev); } return NULL; } From f1b68d4ba40ab327a2aeec1e1fd667d9b9f5d777 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sat, 30 Mar 2013 16:44:11 -0400 Subject: [PATCH 049/204] silicom: get_bypass_slave_pfs() open-codes lookup_port() Signed-off-by: Al Viro --- drivers/staging/silicom/bp_mod.c | 27 ++------------------------- 1 file changed, 2 insertions(+), 25 deletions(-) diff --git a/drivers/staging/silicom/bp_mod.c b/drivers/staging/silicom/bp_mod.c index 5392df316fb9..2c7334162c46 100644 --- a/drivers/staging/silicom/bp_mod.c +++ b/drivers/staging/silicom/bp_mod.c @@ -7436,33 +7436,10 @@ get_bypass_slave_pfs(char *page, char **start, off_t off, int count, bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; int len = 0; - bpctl_dev_t *pbp_device_block_slave = NULL; - int idx_dev = 0; + bpctl_dev_t *pbp_device_block_slave = get_status_port_fn(pbp_device_block); struct net_device *net_slave_dev = NULL; - if ((pbp_device_block->func == 0) || (pbp_device_block->func == 2)) { - for (idx_dev = 0; - ((bpctl_dev_arr[idx_dev].pdev != NULL) - && (idx_dev < device_num)); idx_dev++) { - if ((bpctl_dev_arr[idx_dev].bus == - pbp_device_block->bus) - && (bpctl_dev_arr[idx_dev].slot == - pbp_device_block->slot)) { - if ((pbp_device_block->func == 0) - && (bpctl_dev_arr[idx_dev].func == 1)) { - pbp_device_block_slave = - &bpctl_dev_arr[idx_dev]; - break; - } - if ((pbp_device_block->func == 2) && - (bpctl_dev_arr[idx_dev].func == 3)) { - pbp_device_block_slave = - &bpctl_dev_arr[idx_dev]; - break; - } - } - } - } else + if (!pbp_device_block_slave) pbp_device_block_slave = pbp_device_block; if (!pbp_device_block_slave) { len = sprintf(page, "fail\n"); From bdcecec3242368688c44eebb6c7f5fd460990c40 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sat, 30 Mar 2013 17:20:54 -0400 Subject: [PATCH 050/204] silicom: untangle module_init Helper functions are often useful. So are local variables... Signed-off-by: Al Viro --- drivers/staging/silicom/bp_mod.c | 325 +++++++++++++------------------ 1 file changed, 133 insertions(+), 192 deletions(-) diff --git a/drivers/staging/silicom/bp_mod.c b/drivers/staging/silicom/bp_mod.c index 2c7334162c46..e737939e4c46 100644 --- a/drivers/staging/silicom/bp_mod.c +++ b/drivers/staging/silicom/bp_mod.c @@ -6657,6 +6657,118 @@ static bpmod_info_t tx_ctl_pci_tbl[] = { {0,} }; +static void find_fw(bpctl_dev_t *dev) +{ + unsigned long mmio_start, mmio_len; + struct pci_dev *pdev1 = dev->pdev; + + if ((OLD_IF_SERIES(dev->subdevice)) || + (INTEL_IF_SERIES(dev->subdevice))) + dev->bp_fw_ver = 0xff; + else + dev->bp_fw_ver = bypass_fw_ver(dev); + + if (dev->bp_10gb == 1 && dev->bp_fw_ver == 0xff) { + int cnt = 100; + while (cnt--) { + iounmap((void *)dev->mem_map); + mmio_start = pci_resource_start(pdev1, 0); + mmio_len = pci_resource_len(pdev1, 0); + + dev->mem_map = (unsigned long) + ioremap(mmio_start, mmio_len); + + dev->bp_fw_ver = bypass_fw_ver(dev); + if (dev-> bp_fw_ver == 0xa8) + break; + } + } + /* dev->bp_fw_ver=0xa8; */ + printk("firmware version: 0x%x\n", dev->bp_fw_ver); +} + +static int init_one(bpctl_dev_t *dev, bpmod_info_t *info, struct pci_dev *pdev1) +{ + unsigned long mmio_start, mmio_len; + + dev->pdev = pdev1; + mmio_start = pci_resource_start(pdev1, 0); + mmio_len = pci_resource_len(pdev1, 0); + + dev->desc = dev_desc[info->index].name; + dev->name = info->bp_name; + dev->device = info->device; + dev->vendor = info->vendor; + dev->subdevice = info->subdevice; + dev->subvendor = info->subvendor; + dev->func = PCI_FUNC(pdev1->devfn); + dev->slot = PCI_SLOT(pdev1->devfn); + dev->bus = pdev1->bus->number; + dev->mem_map = (unsigned long)ioremap(mmio_start, mmio_len); +#ifdef BP_SYNC_FLAG + spin_lock_init(&dev->bypass_wr_lock); +#endif + if (BP10G9_IF_SERIES(dev->subdevice)) + dev->bp_10g9 = 1; + if (BP10G_IF_SERIES(dev->subdevice)) + dev->bp_10g = 1; + if (PEG540_IF_SERIES(dev->subdevice)) + dev->bp_540 = 1; + if (PEGF5_IF_SERIES(dev->subdevice)) + dev->bp_fiber5 = 1; + if (PEG80_IF_SERIES(dev->subdevice)) + dev->bp_i80 = 1; + if (PEGF80_IF_SERIES(dev->subdevice)) + dev->bp_i80 = 1; + if ((dev->subdevice & 0xa00) == 0xa00) + dev->bp_i80 = 1; + if (BP10GB_IF_SERIES(dev->subdevice)) { + if (dev->ifindex == 0) { + unregister_chrdev(major_num, DEVICE_NAME); + printk("Please load network driver for %s adapter!\n", + dev->name); + return -1; + } + + if (dev->ndev && !(dev->ndev->flags & IFF_UP)) { + unregister_chrdev(major_num, DEVICE_NAME); + printk("Please bring up network interfaces for %s adapter!\n", + dev->name); + return -1; + } + dev->bp_10gb = 1; + } + + if (!dev->bp_10g9) { + if (is_bypass_fn(dev)) { + printk(KERN_INFO "%s found, ", + dev->name); + find_fw(dev); + } + dev->wdt_status = WDT_STATUS_UNKNOWN; + dev->reset_time = 0; + atomic_set(&dev->wdt_busy, 0); + dev->bp_status_un = 1; + + bypass_caps_init(dev); + + init_bypass_wd_auto(dev); + init_bypass_tpl_auto(dev); + if (NOKIA_SERIES(dev->subdevice)) + reset_cont(dev); + } +#ifdef BP_SELF_TEST + if ((dev->bp_tx_data = kzalloc(BPTEST_DATA_LEN, GFP_KERNEL))) { + memset(dev->bp_tx_data, 0xff, 6); + memset(dev->bp_tx_data + 6, 0x0, 1); + memset(dev->bp_tx_data + 7, 0xaa, 5); + *(__be16 *)(dev->bp_tx_data + 12) = htons(ETH_P_BPTEST); + } else + printk("bp_ctl: Memory allocation error!\n"); +#endif + return 0; +} + /* * Initialize the module - Register the character device */ @@ -6665,7 +6777,7 @@ static int __init bypass_init_module(void) { int ret_val, idx, idx_dev = 0; struct pci_dev *pdev1 = NULL; - unsigned long mmio_start, mmio_len; + bpctl_dev_t *dev; printk(BP_MOD_DESCR " v" BP_MOD_VER "\n"); ret_val = register_chrdev(major_num, DEVICE_NAME, &Fops); @@ -6700,181 +6812,16 @@ static int __init bypass_init_module(void) memset(bpctl_dev_arr, 0, ((device_num) * sizeof(bpctl_dev_t))); pdev1 = NULL; + dev = bpctl_dev_arr; for (idx = 0; tx_ctl_pci_tbl[idx].vendor; idx++) { while ((pdev1 = pci_get_subsys(tx_ctl_pci_tbl[idx].vendor, tx_ctl_pci_tbl[idx].device, tx_ctl_pci_tbl[idx].subvendor, tx_ctl_pci_tbl[idx].subdevice, pdev1))) { - bpctl_dev_arr[idx_dev].pdev = pdev1; - - mmio_start = pci_resource_start(pdev1, 0); - mmio_len = pci_resource_len(pdev1, 0); - - bpctl_dev_arr[idx_dev].desc = - dev_desc[tx_ctl_pci_tbl[idx].index].name; - bpctl_dev_arr[idx_dev].name = - tx_ctl_pci_tbl[idx].bp_name; - bpctl_dev_arr[idx_dev].device = - tx_ctl_pci_tbl[idx].device; - bpctl_dev_arr[idx_dev].vendor = - tx_ctl_pci_tbl[idx].vendor; - bpctl_dev_arr[idx_dev].subdevice = - tx_ctl_pci_tbl[idx].subdevice; - bpctl_dev_arr[idx_dev].subvendor = - tx_ctl_pci_tbl[idx].subvendor; - /* bpctl_dev_arr[idx_dev].pdev=pdev1; */ - bpctl_dev_arr[idx_dev].func = PCI_FUNC(pdev1->devfn); - bpctl_dev_arr[idx_dev].slot = PCI_SLOT(pdev1->devfn); - bpctl_dev_arr[idx_dev].bus = pdev1->bus->number; - bpctl_dev_arr[idx_dev].mem_map = - (unsigned long)ioremap(mmio_start, mmio_len); -#ifdef BP_SYNC_FLAG - spin_lock_init(&bpctl_dev_arr[idx_dev].bypass_wr_lock); -#endif - if (BP10G9_IF_SERIES(bpctl_dev_arr[idx_dev].subdevice)) - bpctl_dev_arr[idx_dev].bp_10g9 = 1; - if (BP10G_IF_SERIES(bpctl_dev_arr[idx_dev].subdevice)) - bpctl_dev_arr[idx_dev].bp_10g = 1; - if (PEG540_IF_SERIES(bpctl_dev_arr[idx_dev].subdevice)) { - - bpctl_dev_arr[idx_dev].bp_540 = 1; - } - if (PEGF5_IF_SERIES(bpctl_dev_arr[idx_dev].subdevice)) - bpctl_dev_arr[idx_dev].bp_fiber5 = 1; - if (PEG80_IF_SERIES(bpctl_dev_arr[idx_dev].subdevice)) - bpctl_dev_arr[idx_dev].bp_i80 = 1; - if (PEGF80_IF_SERIES(bpctl_dev_arr[idx_dev].subdevice)) - bpctl_dev_arr[idx_dev].bp_i80 = 1; - if ((bpctl_dev_arr[idx_dev].subdevice & 0xa00) == 0xa00) - bpctl_dev_arr[idx_dev].bp_i80 = 1; - if (BP10GB_IF_SERIES(bpctl_dev_arr[idx_dev].subdevice)) { - if (bpctl_dev_arr[idx_dev].ifindex == 0) { - unregister_chrdev(major_num, - DEVICE_NAME); - printk - ("Please load network driver for %s adapter!\n", - bpctl_dev_arr[idx_dev].name); - return -1; - } - - if (bpctl_dev_arr[idx_dev].ndev) { - if (! - (bpctl_dev_arr[idx_dev].ndev-> - flags & IFF_UP)) { - if (! - (bpctl_dev_arr[idx_dev]. - ndev->flags & IFF_UP)) { - unregister_chrdev - (major_num, - DEVICE_NAME); - printk - ("Please bring up network interfaces for %s adapter!\n", - bpctl_dev_arr - [idx_dev].name); - return -1; - } - - } - } - bpctl_dev_arr[idx_dev].bp_10gb = 1; - } - - if (!bpctl_dev_arr[idx_dev].bp_10g9) { - - if (is_bypass_fn(&bpctl_dev_arr[idx_dev])) { - printk(KERN_INFO "%s found, ", - bpctl_dev_arr[idx_dev].name); - if ((OLD_IF_SERIES - (bpctl_dev_arr[idx_dev].subdevice)) - || - (INTEL_IF_SERIES - (bpctl_dev_arr[idx_dev]. - subdevice))) - bpctl_dev_arr[idx_dev]. - bp_fw_ver = 0xff; - else - bpctl_dev_arr[idx_dev]. - bp_fw_ver = - bypass_fw_ver(&bpctl_dev_arr - [idx_dev]); - if ((bpctl_dev_arr[idx_dev].bp_10gb == - 1) - && (bpctl_dev_arr[idx_dev]. - bp_fw_ver == 0xff)) { - int cnt = 100; - while (cnt--) { - iounmap((void - *) - (bpctl_dev_arr - [idx_dev]. - mem_map)); - mmio_start = - pci_resource_start - (pdev1, 0); - mmio_len = - pci_resource_len - (pdev1, 0); - - bpctl_dev_arr[idx_dev]. - mem_map = - (unsigned long) - ioremap(mmio_start, - mmio_len); - - bpctl_dev_arr[idx_dev]. - bp_fw_ver = - bypass_fw_ver - (&bpctl_dev_arr - [idx_dev]); - if (bpctl_dev_arr - [idx_dev]. - bp_fw_ver == 0xa8) - break; - - } - } - /* bpctl_dev_arr[idx_dev].bp_fw_ver=0xa8; */ - printk("firmware version: 0x%x\n", - bpctl_dev_arr[idx_dev]. - bp_fw_ver); - } - bpctl_dev_arr[idx_dev].wdt_status = - WDT_STATUS_UNKNOWN; - bpctl_dev_arr[idx_dev].reset_time = 0; - atomic_set(&bpctl_dev_arr[idx_dev].wdt_busy, 0); - bpctl_dev_arr[idx_dev].bp_status_un = 1; - - bypass_caps_init(&bpctl_dev_arr[idx_dev]); - - init_bypass_wd_auto(&bpctl_dev_arr[idx_dev]); - init_bypass_tpl_auto(&bpctl_dev_arr[idx_dev]); - if (NOKIA_SERIES - (bpctl_dev_arr[idx_dev].subdevice)) - reset_cont(&bpctl_dev_arr[idx_dev]); - } -#ifdef BP_SELF_TEST - if ((bpctl_dev_arr[idx_dev].bp_tx_data = - kmalloc(BPTEST_DATA_LEN, GFP_KERNEL))) { - - memset(bpctl_dev_arr[idx_dev].bp_tx_data, 0x0, - BPTEST_DATA_LEN); - - memset(bpctl_dev_arr[idx_dev].bp_tx_data, 0xff, - 6); - memset(bpctl_dev_arr[idx_dev].bp_tx_data + 6, - 0x0, 1); - memset(bpctl_dev_arr[idx_dev].bp_tx_data + 7, - 0xaa, 5); - - *(__be16 *) (bpctl_dev_arr[idx_dev].bp_tx_data + - 12) = htons(ETH_P_BPTEST); - - } else - printk("bp_ctl: Memory allocation error!\n"); -#endif - idx_dev++; - + if (init_one(dev, &tx_ctl_pci_tbl[idx], pdev1) < 0) + return -1; + dev++; } } if_scan_init(); @@ -6884,33 +6831,27 @@ static int __init bypass_init_module(void) { bpctl_dev_t *pbpctl_dev_c = NULL; - for (idx_dev = 0; - ((bpctl_dev_arr[idx_dev].pdev != NULL) - && (idx_dev < device_num)); idx_dev++) { - if (bpctl_dev_arr[idx_dev].bp_10g9) { - pbpctl_dev_c = - get_status_port_fn(&bpctl_dev_arr[idx_dev]); - if (is_bypass_fn(&bpctl_dev_arr[idx_dev])) { + for (idx_dev = 0, dev = bpctl_dev_arr; + idx_dev < device_num && dev->pdev; + idx_dev++, dev++) { + if (dev->bp_10g9) { + pbpctl_dev_c = get_status_port_fn(dev); + if (is_bypass_fn(dev)) { printk(KERN_INFO "%s found, ", - bpctl_dev_arr[idx_dev].name); - bpctl_dev_arr[idx_dev].bp_fw_ver = - bypass_fw_ver(&bpctl_dev_arr - [idx_dev]); + dev->name); + dev->bp_fw_ver = bypass_fw_ver(dev); printk("firmware version: 0x%x\n", - bpctl_dev_arr[idx_dev]. - bp_fw_ver); - + dev->bp_fw_ver); } - bpctl_dev_arr[idx_dev].wdt_status = - WDT_STATUS_UNKNOWN; - bpctl_dev_arr[idx_dev].reset_time = 0; - atomic_set(&bpctl_dev_arr[idx_dev].wdt_busy, 0); - bpctl_dev_arr[idx_dev].bp_status_un = 1; + dev->wdt_status = WDT_STATUS_UNKNOWN; + dev->reset_time = 0; + atomic_set(&dev->wdt_busy, 0); + dev->bp_status_un = 1; - bypass_caps_init(&bpctl_dev_arr[idx_dev]); + bypass_caps_init(dev); - init_bypass_wd_auto(&bpctl_dev_arr[idx_dev]); - init_bypass_tpl_auto(&bpctl_dev_arr[idx_dev]); + init_bypass_wd_auto(dev); + init_bypass_tpl_auto(dev); } From 121daf5f8b4a60158e26f357eb286acf83eb33b4 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sat, 30 Mar 2013 20:16:20 -0400 Subject: [PATCH 051/204] reiserfs: use proc_remove_subtree() Signed-off-by: Al Viro --- fs/reiserfs/procfs.c | 32 ++++++++++---------------------- 1 file changed, 10 insertions(+), 22 deletions(-) diff --git a/fs/reiserfs/procfs.c b/fs/reiserfs/procfs.c index 9cc0740adffa..274adea363ff 100644 --- a/fs/reiserfs/procfs.c +++ b/fs/reiserfs/procfs.c @@ -499,29 +499,17 @@ int reiserfs_proc_info_init(struct super_block *sb) int reiserfs_proc_info_done(struct super_block *sb) { struct proc_dir_entry *de = REISERFS_SB(sb)->procdir; - char b[BDEVNAME_SIZE]; - char *s; - - /* Some block devices use /'s */ - strlcpy(b, reiserfs_bdevname(sb), BDEVNAME_SIZE); - s = strchr(b, '/'); - if (s) - *s = '!'; - if (de) { - remove_proc_entry("journal", de); - remove_proc_entry("oidmap", de); - remove_proc_entry("on-disk-super", de); - remove_proc_entry("bitmap", de); - remove_proc_entry("per-level", de); - remove_proc_entry("super", de); - remove_proc_entry("version", de); - } - spin_lock(&__PINFO(sb).lock); - __PINFO(sb).exiting = 1; - spin_unlock(&__PINFO(sb).lock); - if (proc_info_root) { - remove_proc_entry(b, proc_info_root); + char b[BDEVNAME_SIZE]; + char *s; + + /* Some block devices use /'s */ + strlcpy(b, reiserfs_bdevname(sb), BDEVNAME_SIZE); + s = strchr(b, '/'); + if (s) + *s = '!'; + + remove_proc_subtree(b, proc_info_root); REISERFS_SB(sb)->procdir = NULL; } return 0; From a01b0c576db9129f4a21c5e0a8815fc95468d169 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sat, 30 Mar 2013 19:11:39 -0400 Subject: [PATCH 052/204] silicom: switch to create_proc_data(), clean procfs side of things up Signed-off-by: Al Viro --- drivers/staging/silicom/bp_mod.c | 1233 ++++++++++-------------------- 1 file changed, 396 insertions(+), 837 deletions(-) diff --git a/drivers/staging/silicom/bp_mod.c b/drivers/staging/silicom/bp_mod.c index e737939e4c46..f64ee07c15ac 100644 --- a/drivers/staging/silicom/bp_mod.c +++ b/drivers/staging/silicom/bp_mod.c @@ -60,35 +60,9 @@ typedef enum { bp_none, } bp_media_type; -struct pfs_unit_sd { - struct proc_dir_entry *proc_entry; - char proc_name[32]; -}; - struct bypass_pfs_sd { char dir_name[32]; struct proc_dir_entry *bypass_entry; - struct pfs_unit_sd bypass_info; - struct pfs_unit_sd bypass_slave; - struct pfs_unit_sd bypass_caps; - struct pfs_unit_sd wd_set_caps; - struct pfs_unit_sd bypass; - struct pfs_unit_sd bypass_change; - struct pfs_unit_sd bypass_wd; - struct pfs_unit_sd wd_expire_time; - struct pfs_unit_sd reset_bypass_wd; - struct pfs_unit_sd dis_bypass; - struct pfs_unit_sd bypass_pwup; - struct pfs_unit_sd bypass_pwoff; - struct pfs_unit_sd std_nic; - struct pfs_unit_sd tap; - struct pfs_unit_sd dis_tap; - struct pfs_unit_sd tap_pwup; - struct pfs_unit_sd tap_change; - struct pfs_unit_sd wd_exp_mode; - struct pfs_unit_sd wd_autoreset; - struct pfs_unit_sd tpl; - }; typedef struct _bpctl_dev { @@ -7250,78 +7224,11 @@ EXPORT_SYMBOL_NOVERS(bp_if_scan_sd); #define BP_PROC_DIR "bypass" -#define GPIO6_SET_ENTRY_SD "gpio6_set" -#define GPIO6_CLEAR_ENTRY_SD "gpio6_clear" - -#define GPIO7_SET_ENTRY_SD "gpio7_set" -#define GPIO7_CLEAR_ENTRY_SD "gpio7_clear" - -#define PULSE_SET_ENTRY_SD "pulse_set" -#define ZERO_SET_ENTRY_SD "zero_set" -#define PULSE_GET1_ENTRY_SD "pulse_get1" -#define PULSE_GET2_ENTRY_SD "pulse_get2" - -#define CMND_ON_ENTRY_SD "cmnd_on" -#define CMND_OFF_ENTRY_SD "cmnd_off" -#define RESET_CONT_ENTRY_SD "reset_cont" - - /*COMMANDS*/ -#define BYPASS_INFO_ENTRY_SD "bypass_info" -#define BYPASS_SLAVE_ENTRY_SD "bypass_slave" -#define BYPASS_CAPS_ENTRY_SD "bypass_caps" -#define WD_SET_CAPS_ENTRY_SD "wd_set_caps" -#define BYPASS_ENTRY_SD "bypass" -#define BYPASS_CHANGE_ENTRY_SD "bypass_change" -#define BYPASS_WD_ENTRY_SD "bypass_wd" -#define WD_EXPIRE_TIME_ENTRY_SD "wd_expire_time" -#define RESET_BYPASS_WD_ENTRY_SD "reset_bypass_wd" -#define DIS_BYPASS_ENTRY_SD "dis_bypass" -#define BYPASS_PWUP_ENTRY_SD "bypass_pwup" -#define BYPASS_PWOFF_ENTRY_SD "bypass_pwoff" -#define STD_NIC_ENTRY_SD "std_nic" -#define STD_NIC_ENTRY_SD "std_nic" -#define TAP_ENTRY_SD "tap" -#define TAP_CHANGE_ENTRY_SD "tap_change" -#define DIS_TAP_ENTRY_SD "dis_tap" -#define TAP_PWUP_ENTRY_SD "tap_pwup" -#define TWO_PORT_LINK_ENTRY_SD "two_port_link" -#define WD_EXP_MODE_ENTRY_SD "wd_exp_mode" -#define WD_AUTORESET_ENTRY_SD "wd_autoreset" -#define TPL_ENTRY_SD "tpl" -#define WAIT_AT_PWUP_ENTRY_SD "wait_at_pwup" -#define HW_RESET_ENTRY_SD "hw_reset" -#define DISC_ENTRY_SD "disc" -#define DISC_CHANGE_ENTRY_SD "disc_change" -#define DIS_DISC_ENTRY_SD "dis_disc" -#define DISC_PWUP_ENTRY_SD "disc_pwup" static struct proc_dir_entry *bp_procfs_dir; -static struct proc_dir_entry *proc_getdir(char *name, - struct proc_dir_entry *proc_dir) -{ - struct proc_dir_entry *pde = proc_dir; - - for (pde = pde->subdir; pde; pde = pde->next) { - if (pde->namelen && (strcmp(name, pde->name) == 0)) { - /* directory exists */ - break; - } - } - if (pde == (struct proc_dir_entry *)0) { - /* create the directory */ - pde = proc_mkdir(name, proc_dir); - if (pde == (struct proc_dir_entry *)0) { - - return pde; - } - } - - return pde; -} - int bp_proc_create(void) { - bp_procfs_dir = proc_getdir(BP_PROC_DIR, init_net.proc_net); + bp_procfs_dir = proc_mkdir(BP_PROC_DIR, init_net.proc_net); if (bp_procfs_dir == (struct proc_dir_entry *)0) { printk(KERN_DEBUG "Could not create procfs nicinfo directory %s\n", @@ -7331,104 +7238,87 @@ int bp_proc_create(void) return 0; } -int -bypass_proc_create_entry_sd(struct pfs_unit_sd *pfs_unit_curr, - char *proc_name, - write_proc_t *write_proc, - read_proc_t *read_proc, - struct proc_dir_entry *parent_pfs, void *data) +static int procfs_add(char *proc_name, const struct file_operations *fops, + bpctl_dev_t *dev) { - strcpy(pfs_unit_curr->proc_name, proc_name); - pfs_unit_curr->proc_entry = create_proc_entry(pfs_unit_curr->proc_name, - S_IFREG | S_IRUSR | - S_IWUSR | S_IRGRP | - S_IROTH, parent_pfs); - if (pfs_unit_curr->proc_entry == NULL) + struct bypass_pfs_sd *pfs = &dev->bypass_pfs_set; + if (!proc_create_data(proc_name, 0644, pfs->bypass_entry, fops, dev)) return -1; - - pfs_unit_curr->proc_entry->read_proc = read_proc; - pfs_unit_curr->proc_entry->write_proc = write_proc; - pfs_unit_curr->proc_entry->data = data; - return 0; - } -int -get_bypass_info_pfs(char *page, char **start, off_t off, int count, - int *eof, void *data) +#define RO_FOPS(name) \ +static int name##_open(struct inode *inode, struct file *file) \ +{ \ + return single_open(file, show_##name, PDE(inode)->data);\ +} \ +static const struct file_operations name##_ops = { \ + .open = name##_open, \ + .read = seq_read, \ + .llseek = seq_lseek, \ + .release = single_release, \ +}; + +#define RW_FOPS(name) \ +static int name##_open(struct inode *inode, struct file *file) \ +{ \ + return single_open(file, show_##name, PDE(inode)->data);\ +} \ +static const struct file_operations name##_ops = { \ + .open = name##_open, \ + .read = seq_read, \ + .write = name##_write, \ + .llseek = seq_lseek, \ + .release = single_release, \ +}; + +static int show_bypass_info(struct seq_file *m, void *v) { - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - int len = 0; + bpctl_dev_t *dev = m->private; - len += sprintf(page, "Name\t\t\t%s\n", pbp_device_block->name); - len += - sprintf(page + len, "Firmware version\t0x%x\n", - pbp_device_block->bp_fw_ver); - - *eof = 1; - return len; + seq_printf(m, "Name\t\t\t%s\n", dev->name); + seq_printf(m, "Firmware version\t0x%x\n", dev->bp_fw_ver); + return 0; } +RO_FOPS(bypass_info) -int -get_bypass_slave_pfs(char *page, char **start, off_t off, int count, - int *eof, void *data) +static int show_bypass_slave(struct seq_file *m, void *v) { - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int len = 0; - bpctl_dev_t *pbp_device_block_slave = get_status_port_fn(pbp_device_block); - struct net_device *net_slave_dev = NULL; - - if (!pbp_device_block_slave) - pbp_device_block_slave = pbp_device_block; - if (!pbp_device_block_slave) { - len = sprintf(page, "fail\n"); - *eof = 1; - return len; - } - net_slave_dev = pbp_device_block_slave->ndev; - if (net_slave_dev) - len = sprintf(page, "%s\n", net_slave_dev->name); - - *eof = 1; - return len; + bpctl_dev_t *dev = m->private; + bpctl_dev_t *slave = get_status_port_fn(dev); + if (!slave) + slave = dev; + if (!slave) + seq_printf(m, "fail\n"); + else if (slave->ndev) + seq_printf(m, "%s\n", slave->ndev->name); + return 0; } +RO_FOPS(bypass_slave) -int -get_bypass_caps_pfs(char *page, char **start, off_t off, int count, - int *eof, void *data) +static int show_bypass_caps(struct seq_file *m, void *v) { - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int len = 0, ret = 0; - - ret = get_bypass_caps_fn(pbp_device_block); + bpctl_dev_t *dev = m->private; + int ret = get_bypass_caps_fn(dev); if (ret == BP_NOT_CAP) - len = sprintf(page, "-1\n"); + seq_printf(m, "-1\n"); else - len = sprintf(page, "0x%x\n", ret); - *eof = 1; - return len; - + seq_printf(m, "0x%x\n", ret); + return 0; } +RO_FOPS(bypass_caps) -int -get_wd_set_caps_pfs(char *page, char **start, off_t off, int count, - int *eof, void *data) +static int show_wd_set_caps(struct seq_file *m, void *v) { - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int len = 0, ret = 0; - - ret = get_wd_set_caps_fn(pbp_device_block); + bpctl_dev_t *dev = m->private; + int ret = get_wd_set_caps_fn(dev); if (ret == BP_NOT_CAP) - len = sprintf(page, "-1\n"); + seq_printf(m, "-1\n"); else - len = sprintf(page, "0x%x\n", ret); - *eof = 1; - return len; + seq_printf(m, "0x%x\n", ret); + return 0; } +RO_FOPS(wd_set_caps) static int user_on_off(const void __user *buffer, size_t count) { @@ -7454,625 +7344,461 @@ static int user_on_off(const void __user *buffer, size_t count) return 0; } -int -set_bypass_pfs(struct file *file, const char *buffer, - unsigned long count, void *data) +static ssize_t bypass_write(struct file *file, const char __user *buffer, + size_t count, loff_t *pos) { - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; int bypass_param = user_on_off(buffer, count); if (bypass_param < 0) return -1; - set_bypass_fn(pbp_device_block, bypass_param); + set_bypass_fn(PDE(file_inode(file))->data, bypass_param); return count; } - -int -set_tap_pfs(struct file *file, const char *buffer, - unsigned long count, void *data) +static int show_bypass(struct seq_file *m, void *v) { + bpctl_dev_t *dev = m->private; + int ret = get_bypass_fn(dev); + if (ret == BP_NOT_CAP) + seq_printf(m, "fail\n"); + else if (ret == 1) + seq_printf(m, "on\n"); + else if (ret == 0) + seq_printf(m, "off\n"); + return 0; +} +RW_FOPS(bypass) - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; +static ssize_t tap_write(struct file *file, const char __user *buffer, + size_t count, loff_t *pos) +{ int tap_param = user_on_off(buffer, count); if (tap_param < 0) return -1; - set_tap_fn(pbp_device_block, tap_param); + set_tap_fn(PDE(file_inode(file))->data, tap_param); return count; } - -int -set_disc_pfs(struct file *file, const char *buffer, - unsigned long count, void *data) +static int show_tap(struct seq_file *m, void *v) { + bpctl_dev_t *dev = m->private; + int ret = get_tap_fn(dev); + if (ret == BP_NOT_CAP) + seq_printf(m, "fail\n"); + else if (ret == 1) + seq_printf(m, "on\n"); + else if (ret == 0) + seq_printf(m, "off\n"); + return 0; +} +RW_FOPS(tap) - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; +static ssize_t disc_write(struct file *file, const char __user *buffer, + size_t count, loff_t *pos) +{ int tap_param = user_on_off(buffer, count); if (tap_param < 0) return -1; - set_disc_fn(pbp_device_block, tap_param); + set_disc_fn(PDE(file_inode(file))->data, tap_param); return count; } - -int -get_bypass_pfs(char *page, char **start, off_t off, int count, - int *eof, void *data) +static int show_disc(struct seq_file *m, void *v) { - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int len = 0, ret = 0; - - ret = get_bypass_fn(pbp_device_block); + bpctl_dev_t *dev = m->private; + int ret = get_disc_fn(dev); if (ret == BP_NOT_CAP) - len = sprintf(page, "fail\n"); + seq_printf(m, "fail\n"); else if (ret == 1) - len = sprintf(page, "on\n"); + seq_printf(m, "on\n"); else if (ret == 0) - len = sprintf(page, "off\n"); - - *eof = 1; - return len; + seq_printf(m, "off\n"); + return 0; } +RW_FOPS(disc) -int -get_tap_pfs(char *page, char **start, off_t off, int count, - int *eof, void *data) +static int show_bypass_change(struct seq_file *m, void *v) { - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int len = 0, ret = 0; - - ret = get_tap_fn(pbp_device_block); - if (ret == BP_NOT_CAP) - len = sprintf(page, "fail\n"); - else if (ret == 1) - len = sprintf(page, "on\n"); - else if (ret == 0) - len = sprintf(page, "off\n"); - - *eof = 1; - return len; -} - -int -get_disc_pfs(char *page, char **start, off_t off, int count, - int *eof, void *data) -{ - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int len = 0, ret = 0; - - ret = get_disc_fn(pbp_device_block); - if (ret == BP_NOT_CAP) - len = sprintf(page, "fail\n"); - else if (ret == 1) - len = sprintf(page, "on\n"); - else if (ret == 0) - len = sprintf(page, "off\n"); - - *eof = 1; - return len; -} - -int -get_bypass_change_pfs(char *page, char **start, off_t off, int count, - int *eof, void *data) -{ - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int len = 0, ret = 0; - - ret = get_bypass_change_fn(pbp_device_block); + bpctl_dev_t *dev = m->private; + int ret = get_bypass_change_fn(dev); if (ret == 1) - len = sprintf(page, "on\n"); + seq_printf(m, "on\n"); else if (ret == 0) - len = sprintf(page, "off\n"); + seq_printf(m, "off\n"); else - len = sprintf(page, "fail\n"); - - *eof = 1; - return len; + seq_printf(m, "fail\n"); + return 0; } +RO_FOPS(bypass_change) -int -get_tap_change_pfs(char *page, char **start, off_t off, int count, - int *eof, void *data) +static int show_tap_change(struct seq_file *m, void *v) { - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int len = 0, ret = 0; - - ret = get_tap_change_fn(pbp_device_block); + bpctl_dev_t *dev = m->private; + int ret = get_tap_change_fn(dev); if (ret == 1) - len = sprintf(page, "on\n"); + seq_printf(m, "on\n"); else if (ret == 0) - len = sprintf(page, "off\n"); + seq_printf(m, "off\n"); else - len = sprintf(page, "fail\n"); - - *eof = 1; - return len; + seq_printf(m, "fail\n"); + return 0; } +RO_FOPS(tap_change) -int -get_disc_change_pfs(char *page, char **start, off_t off, int count, - int *eof, void *data) +static int show_disc_change(struct seq_file *m, void *v) { - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int len = 0, ret = 0; - - ret = get_disc_change_fn(pbp_device_block); + bpctl_dev_t *dev = m->private; + int ret = get_disc_change_fn(dev); if (ret == 1) - len = sprintf(page, "on\n"); + seq_printf(m, "on\n"); else if (ret == 0) - len = sprintf(page, "off\n"); + seq_printf(m, "off\n"); else - len = sprintf(page, "fail\n"); - - *eof = 1; - return len; + seq_printf(m, "fail\n"); + return 0; } +RO_FOPS(disc_change) -#define isdigit(c) (c >= '0' && c <= '9') -__inline static int atoi(char **s) +static ssize_t bypass_wd_write(struct file *file, const char __user *buffer, + size_t count, loff_t *pos) { - int i = 0; - while (isdigit(**s)) - i = i * 10 + *((*s)++) - '0'; - return i; -} - -int -set_bypass_wd_pfs(struct file *file, const char *buffer, - unsigned long count, void *data) -{ - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; + bpctl_dev_t *dev = PDE(file_inode(file))->data; int timeout; - int ret; - - ret = kstrtoint_from_user(buffer, count, 10, &timeout); + int ret = kstrtoint_from_user(buffer, count, 10, &timeout); if (ret) return ret; - set_bypass_wd_fn(pbp_device_block, timeout); - + set_bypass_wd_fn(dev, timeout); return count; } - -int -get_bypass_wd_pfs(char *page, char **start, off_t off, int count, - int *eof, void *data) +static int show_bypass_wd(struct seq_file *m, void *v) { - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; + bpctl_dev_t *dev = m->private; + int ret = 0, timeout = 0; - int len = 0, ret = 0, timeout = 0; - - ret = get_bypass_wd_fn(pbp_device_block, &timeout); + ret = get_bypass_wd_fn(dev, &timeout); if (ret == BP_NOT_CAP) - len = sprintf(page, "fail\n"); + seq_printf(m, "fail\n"); else if (timeout == -1) - len = sprintf(page, "unknown\n"); + seq_printf(m, "unknown\n"); else if (timeout == 0) - len = sprintf(page, "disable\n"); + seq_printf(m, "disable\n"); else - len = sprintf(page, "%d\n", timeout); - - *eof = 1; - return len; + seq_printf(m, "%d\n", timeout); + return 0; } +RW_FOPS(bypass_wd) -int -get_wd_expire_time_pfs(char *page, char **start, off_t off, int count, - int *eof, void *data) +static int show_wd_expire_time(struct seq_file *m, void *v) { - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int len = 0, ret = 0, timeout = 0; - - ret = get_wd_expire_time_fn(pbp_device_block, &timeout); + bpctl_dev_t *dev = m->private; + int ret = 0, timeout = 0; + ret = get_wd_expire_time_fn(dev, &timeout); if (ret == BP_NOT_CAP) - len = sprintf(page, "fail\n"); + seq_printf(m, "fail\n"); else if (timeout == -1) - len = sprintf(page, "expire\n"); + seq_printf(m, "expire\n"); else if (timeout == 0) - len = sprintf(page, "disable\n"); - + seq_printf(m, "disable\n"); else - len = sprintf(page, "%d\n", timeout); - *eof = 1; - return len; + seq_printf(m, "%d\n", timeout); + return 0; } +RO_FOPS(wd_expire_time) -int -get_tpl_pfs(char *page, char **start, off_t off, int count, - int *eof, void *data) +static ssize_t tpl_write(struct file *file, const char __user *buffer, + size_t count, loff_t *pos) { - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; + bpctl_dev_t *dev = PDE(file_inode(file))->data; + int tpl_param = user_on_off(buffer, count); + if (tpl_param < 0) + return -1; - int len = 0, ret = 0; - - ret = get_tpl_fn(pbp_device_block); + set_tpl_fn(dev, tpl_param); + return count; +} +static int show_tpl(struct seq_file *m, void *v) +{ + bpctl_dev_t *dev = m->private; + int ret = get_tpl_fn(dev); if (ret == BP_NOT_CAP) - len = sprintf(page, "fail\n"); + seq_printf(m, "fail\n"); else if (ret == 1) - len = sprintf(page, "on\n"); + seq_printf(m, "on\n"); else if (ret == 0) - len = sprintf(page, "off\n"); - - *eof = 1; - return len; + seq_printf(m, "off\n"); + return 0; } +RW_FOPS(tpl) #ifdef PMC_FIX_FLAG -int -get_wait_at_pwup_pfs(char *page, char **start, off_t off, int count, - int *eof, void *data) +static ssize_t wait_at_pwup_write(struct file *file, const char __user *buffer, + size_t count, loff_t *pos) { - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; + bpctl_dev_t *dev = PDE(file_inode(file))->data; + int tpl_param = user_on_off(buffer, count); + if (tpl_param < 0) + return -1; - int len = 0, ret = 0; - - ret = get_bp_wait_at_pwup_fn(pbp_device_block); - if (ret == BP_NOT_CAP) - len = sprintf(page, "fail\n"); - else if (ret == 1) - len = sprintf(page, "on\n"); - else if (ret == 0) - len = sprintf(page, "off\n"); - - *eof = 1; - return len; + set_bp_wait_at_pwup_fn(dev, tpl_param); + return count; } - -int -get_hw_reset_pfs(char *page, char **start, off_t off, int count, - int *eof, void *data) +static int show_wait_at_pwup(struct seq_file *m, void *v) { - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int len = 0, ret = 0; - - ret = get_bp_hw_reset_fn(pbp_device_block); + bpctl_dev_t *dev = m->private; + int ret = get_bp_wait_at_pwup_fn(dev); if (ret == BP_NOT_CAP) - len = sprintf(page, "fail\n"); + seq_printf(m, "fail\n"); else if (ret == 1) - len = sprintf(page, "on\n"); + seq_printf(m, "on\n"); else if (ret == 0) - len = sprintf(page, "off\n"); - - *eof = 1; - return len; + seq_printf(m, "off\n"); + return 0; } +RW_FOPS(wait_at_pwup) + +static ssize_t hw_reset_write(struct file *file, const char __user *buffer, + size_t count, loff_t *pos) +{ + bpctl_dev_t *dev = PDE(file_inode(file))->data; + int tpl_param = user_on_off(buffer, count); + if (tpl_param < 0) + return -1; + + set_bp_hw_reset_fn(dev, tpl_param); + return count; +} +static int show_hw_reset(struct seq_file *m, void *v) +{ + bpctl_dev_t *dev = m->private; + int ret = get_bp_hw_reset_fn(dev); + if (ret == BP_NOT_CAP) + seq_printf(m, "fail\n"); + else if (ret == 1) + seq_printf(m, "on\n"); + else if (ret == 0) + seq_printf(m, "off\n"); + return 0; +} +RW_FOPS(hw_reset) #endif /*PMC_WAIT_FLAG */ -int -reset_bypass_wd_pfs(char *page, char **start, off_t off, int count, - int *eof, void *data) +static int show_reset_bypass_wd(struct seq_file *m, void *v) { - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int len = 0, ret = 0; - - ret = reset_bypass_wd_timer_fn(pbp_device_block); + bpctl_dev_t *dev = m->private; + int ret = reset_bypass_wd_timer_fn(dev); if (ret == BP_NOT_CAP) - len = sprintf(page, "fail\n"); + seq_printf(m, "fail\n"); else if (ret == 0) - len = sprintf(page, "disable\n"); + seq_printf(m, "disable\n"); else if (ret == 1) - len = sprintf(page, "success\n"); - - *eof = 1; - return len; + seq_printf(m, "success\n"); + return 0; } +RO_FOPS(reset_bypass_wd) -int -set_dis_bypass_pfs(struct file *file, const char *buffer, - unsigned long count, void *data) +static ssize_t dis_bypass_write(struct file *file, const char __user *buffer, + size_t count, loff_t *pos) { - - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; int bypass_param = user_on_off(buffer, count); if (bypass_param < 0) return -EINVAL; - set_dis_bypass_fn(pbp_device_block, bypass_param); + set_dis_bypass_fn(PDE(file_inode(file))->data, bypass_param); return count; } - -int -set_dis_tap_pfs(struct file *file, const char *buffer, - unsigned long count, void *data) +static int show_dis_bypass(struct seq_file *m, void *v) { + bpctl_dev_t *dev = m->private; + int ret = get_dis_bypass_fn(dev); + if (ret == BP_NOT_CAP) + seq_printf(m, "fail\n"); + else if (ret == 0) + seq_printf(m, "off\n"); + else + seq_printf(m, "on\n"); + return 0; +} +RW_FOPS(dis_bypass) - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; +static ssize_t dis_tap_write(struct file *file, const char __user *buffer, + size_t count, loff_t *pos) +{ int tap_param = user_on_off(buffer, count); if (tap_param < 0) return -EINVAL; - set_dis_tap_fn(pbp_device_block, tap_param); + set_dis_tap_fn(PDE(file_inode(file))->data, tap_param); return count; } - -int -set_dis_disc_pfs(struct file *file, const char *buffer, - unsigned long count, void *data) +static int show_dis_tap(struct seq_file *m, void *v) { + bpctl_dev_t *dev = m->private; + int ret = get_dis_tap_fn(dev); + if (ret == BP_NOT_CAP) + seq_printf(m, "fail\n"); + else if (ret == 0) + seq_printf(m, "off\n"); + else + seq_printf(m, "on\n"); + return 0; +} +RW_FOPS(dis_tap) - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; +static ssize_t dis_disc_write(struct file *file, const char __user *buffer, + size_t count, loff_t *pos) +{ int tap_param = user_on_off(buffer, count); if (tap_param < 0) return -EINVAL; - set_dis_disc_fn(pbp_device_block, tap_param); + set_dis_disc_fn(PDE(file_inode(file))->data, tap_param); return count; } - -int -get_dis_bypass_pfs(char *page, char **start, off_t off, int count, - int *eof, void *data) +static int show_dis_disc(struct seq_file *m, void *v) { - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int len = 0, ret = 0; - - ret = get_dis_bypass_fn(pbp_device_block); + bpctl_dev_t *dev = m->private; + int ret = get_dis_disc_fn(dev); if (ret == BP_NOT_CAP) - len = sprintf(page, "fail\n"); + seq_printf(m, "fail\n"); else if (ret == 0) - len = sprintf(page, "off\n"); + seq_printf(m, "off\n"); else - len = sprintf(page, "on\n"); - - *eof = 1; - return len; + seq_printf(m, "on\n"); + return 0; } +RW_FOPS(dis_disc) -int -get_dis_tap_pfs(char *page, char **start, off_t off, int count, - int *eof, void *data) +static ssize_t bypass_pwup_write(struct file *file, const char __user *buffer, + size_t count, loff_t *pos) { - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int len = 0, ret = 0; - - ret = get_dis_tap_fn(pbp_device_block); - if (ret == BP_NOT_CAP) - len = sprintf(page, "fail\n"); - else if (ret == 0) - len = sprintf(page, "off\n"); - else - len = sprintf(page, "on\n"); - - *eof = 1; - return len; -} - -int -get_dis_disc_pfs(char *page, char **start, off_t off, int count, - int *eof, void *data) -{ - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int len = 0, ret = 0; - - ret = get_dis_disc_fn(pbp_device_block); - if (ret == BP_NOT_CAP) - len = sprintf(page, "fail\n"); - else if (ret == 0) - len = sprintf(page, "off\n"); - else - len = sprintf(page, "on\n"); - - *eof = 1; - return len; -} - -int -set_bypass_pwup_pfs(struct file *file, const char *buffer, - unsigned long count, void *data) -{ - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; int bypass_param = user_on_off(buffer, count); if (bypass_param < 0) return -EINVAL; - set_bypass_pwup_fn(pbp_device_block, bypass_param); + set_bypass_pwup_fn(PDE(file_inode(file))->data, bypass_param); return count; } - -int -set_bypass_pwoff_pfs(struct file *file, const char *buffer, - unsigned long count, void *data) +static int show_bypass_pwup(struct seq_file *m, void *v) +{ + bpctl_dev_t *dev = m->private; + int ret = get_bypass_pwup_fn(dev); + if (ret == BP_NOT_CAP) + seq_printf(m, "fail\n"); + else if (ret == 0) + seq_printf(m, "off\n"); + else + seq_printf(m, "on\n"); + return 0; +} +RW_FOPS(bypass_pwup) + +static ssize_t bypass_pwoff_write(struct file *file, const char __user *buffer, + size_t count, loff_t *pos) { - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; int bypass_param = user_on_off(buffer, count); if (bypass_param < 0) return -EINVAL; - set_bypass_pwoff_fn(pbp_device_block, bypass_param); + set_bypass_pwoff_fn(PDE(file_inode(file))->data, bypass_param); return count; } - -int -set_tap_pwup_pfs(struct file *file, const char *buffer, - unsigned long count, void *data) +static int show_bypass_pwoff(struct seq_file *m, void *v) +{ + bpctl_dev_t *dev = m->private; + int ret = get_bypass_pwoff_fn(dev); + if (ret == BP_NOT_CAP) + seq_printf(m, "fail\n"); + else if (ret == 0) + seq_printf(m, "off\n"); + else + seq_printf(m, "on\n"); + return 0; +} +RW_FOPS(bypass_pwoff) + +static ssize_t tap_pwup_write(struct file *file, const char __user *buffer, + size_t count, loff_t *pos) { - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; int tap_param = user_on_off(buffer, count); if (tap_param < 0) return -EINVAL; - set_tap_pwup_fn(pbp_device_block, tap_param); + set_tap_pwup_fn(PDE(file_inode(file))->data, tap_param); return count; } - -int -set_disc_pwup_pfs(struct file *file, const char *buffer, - unsigned long count, void *data) +static int show_tap_pwup(struct seq_file *m, void *v) +{ + bpctl_dev_t *dev = m->private; + int ret = get_tap_pwup_fn(dev); + if (ret == BP_NOT_CAP) + seq_printf(m, "fail\n"); + else if (ret == 0) + seq_printf(m, "off\n"); + else + seq_printf(m, "on\n"); + return 0; +} +RW_FOPS(tap_pwup) + +static ssize_t disc_pwup_write(struct file *file, const char __user *buffer, + size_t count, loff_t *pos) { - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; int tap_param = user_on_off(buffer, count); if (tap_param < 0) return -EINVAL; - set_disc_pwup_fn(pbp_device_block, tap_param); + set_disc_pwup_fn(PDE(file_inode(file))->data, tap_param); return count; } - -int -get_bypass_pwup_pfs(char *page, char **start, off_t off, int count, - int *eof, void *data) +static int show_disc_pwup(struct seq_file *m, void *v) { - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int len = 0, ret = 0; - - ret = get_bypass_pwup_fn(pbp_device_block); + bpctl_dev_t *dev = m->private; + int ret = get_disc_pwup_fn(dev); if (ret == BP_NOT_CAP) - len = sprintf(page, "fail\n"); + seq_printf(m, "fail\n"); else if (ret == 0) - len = sprintf(page, "off\n"); + seq_printf(m, "off\n"); else - len = sprintf(page, "on\n"); - - *eof = 1; - return len; + seq_printf(m, "on\n"); + return 0; } +RW_FOPS(disc_pwup) -int -get_bypass_pwoff_pfs(char *page, char **start, off_t off, int count, - int *eof, void *data) +static ssize_t std_nic_write(struct file *file, const char __user *buffer, + size_t count, loff_t *pos) { - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int len = 0, ret = 0; - - ret = get_bypass_pwoff_fn(pbp_device_block); - if (ret == BP_NOT_CAP) - len = sprintf(page, "fail\n"); - else if (ret == 0) - len = sprintf(page, "off\n"); - else - len = sprintf(page, "on\n"); - - *eof = 1; - return len; -} - -int -get_tap_pwup_pfs(char *page, char **start, off_t off, int count, - int *eof, void *data) -{ - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int len = 0, ret = 0; - - ret = get_tap_pwup_fn(pbp_device_block); - if (ret == BP_NOT_CAP) - len = sprintf(page, "fail\n"); - else if (ret == 0) - len = sprintf(page, "off\n"); - else - len = sprintf(page, "on\n"); - - *eof = 1; - return len; -} - -int -get_disc_pwup_pfs(char *page, char **start, off_t off, int count, - int *eof, void *data) -{ - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int len = 0, ret = 0; - - ret = get_disc_pwup_fn(pbp_device_block); - if (ret == BP_NOT_CAP) - len = sprintf(page, "fail\n"); - else if (ret == 0) - len = sprintf(page, "off\n"); - else - len = sprintf(page, "on\n"); - - *eof = 1; - return len; -} - -int -set_std_nic_pfs(struct file *file, const char *buffer, - unsigned long count, void *data) -{ - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; int bypass_param = user_on_off(buffer, count); if (bypass_param < 0) return -EINVAL; - set_std_nic_fn(pbp_device_block, bypass_param); + set_std_nic_fn(PDE(file_inode(file))->data, bypass_param); return count; } - -int -get_std_nic_pfs(char *page, char **start, off_t off, int count, - int *eof, void *data) +static int show_std_nic(struct seq_file *m, void *v) { - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int len = 0, ret = 0; - - ret = get_std_nic_fn(pbp_device_block); + bpctl_dev_t *dev = m->private; + int ret = get_std_nic_fn(dev); if (ret == BP_NOT_CAP) - len = sprintf(page, "fail\n"); + seq_printf(m, "fail\n"); else if (ret == 0) - len = sprintf(page, "off\n"); + seq_printf(m, "off\n"); else - len = sprintf(page, "on\n"); - - *eof = 1; - return len; + seq_printf(m, "on\n"); + return 0; } +RW_FOPS(std_nic) -int -get_wd_exp_mode_pfs(char *page, char **start, off_t off, int count, - int *eof, void *data) +static ssize_t wd_exp_mode_write(struct file *file, const char __user *buffer, + size_t count, loff_t *pos) { - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int len = 0, ret = 0; - - ret = get_wd_exp_mode_fn(pbp_device_block); - if (ret == 1) - len = sprintf(page, "tap\n"); - else if (ret == 0) - len = sprintf(page, "bypass\n"); - else if (ret == 2) - len = sprintf(page, "disc\n"); - - else - len = sprintf(page, "fail\n"); - - *eof = 1; - return len; -} - -int -set_wd_exp_mode_pfs(struct file *file, const char *buffer, - unsigned long count, void *data) -{ - char kbuf[256]; - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - int bypass_param = 0, length = 0; if (count > (sizeof(kbuf) - 1)) return -1; - if (copy_from_user(&kbuf, buffer, count)) { + if (copy_from_user(&kbuf, buffer, count)) return -1; - } kbuf[count] = '\0'; length = strlen(kbuf); @@ -8086,86 +7812,47 @@ set_wd_exp_mode_pfs(struct file *file, const char *buffer, else if (strcmp(kbuf, "disc") == 0) bypass_param = 2; - set_wd_exp_mode_fn(pbp_device_block, bypass_param); + set_wd_exp_mode_fn(PDE(file_inode(file))->data, bypass_param); return count; } - -int -get_wd_autoreset_pfs(char *page, char **start, off_t off, int count, - int *eof, void *data) +static int show_wd_exp_mode(struct seq_file *m, void *v) { - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int len = 0, ret = 0; - - ret = get_wd_autoreset_fn(pbp_device_block); - if (ret >= 0) - len = sprintf(page, "%d\n", ret); + bpctl_dev_t *dev = m->private; + int ret = get_wd_exp_mode_fn(dev); + if (ret == 1) + seq_printf(m, "tap\n"); + else if (ret == 0) + seq_printf(m, "bypass\n"); + else if (ret == 2) + seq_printf(m, "disc\n"); else - len = sprintf(page, "fail\n"); - - *eof = 1; - return len; + seq_printf(m, "fail\n"); + return 0; } +RW_FOPS(wd_exp_mode) -int -set_wd_autoreset_pfs(struct file *file, const char *buffer, - unsigned long count, void *data) +static ssize_t wd_autoreset_write(struct file *file, const char __user *buffer, + size_t count, loff_t *pos) { - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; int timeout; - int ret; - - ret = kstrtoint_from_user(buffer, count, 10, &timeout); + int ret = kstrtoint_from_user(buffer, count, 10, &timeout); if (ret) return ret; - set_wd_autoreset_fn(pbp_device_block, timeout); - + set_wd_autoreset_fn(PDE(file_inode(file))->data, timeout); return count; } - -int -set_tpl_pfs(struct file *file, const char *buffer, - unsigned long count, void *data) +static int show_wd_autoreset(struct seq_file *m, void *v) { - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - int tpl_param = user_on_off(buffer, count); - if (tpl_param < 0) - return -1; - - set_tpl_fn(pbp_device_block, tpl_param); - return count; + bpctl_dev_t *dev = m->private; + int ret = get_wd_autoreset_fn(dev); + if (ret >= 0) + seq_printf(m, "%d\n", ret); + else + seq_printf(m, "fail\n"); + return 0; } - -#ifdef PMC_FIX_FLAG -int -set_wait_at_pwup_pfs(struct file *file, const char *buffer, - unsigned long count, void *data) -{ - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - int tpl_param = user_on_off(buffer, count); - if (tpl_param < 0) - return -1; - - set_bp_wait_at_pwup_fn(pbp_device_block, tpl_param); - return count; -} - -int -set_hw_reset_pfs(struct file *file, const char *buffer, - unsigned long count, void *data) -{ - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - int tpl_param = user_on_off(buffer, count); - if (tpl_param < 0) - return -1; - - set_bp_hw_reset_fn(pbp_device_block, tpl_param); - return count; -} - -#endif /*PMC_FIX_FLAG */ +RW_FOPS(wd_autoreset) int bypass_proc_create_dev_sd(bpctl_dev_t *pbp_device_block) { @@ -8182,168 +7869,54 @@ int bypass_proc_create_dev_sd(bpctl_dev_t *pbp_device_block) return -1; /* create device proc dir */ - procfs_dir = proc_getdir(current_pfs->dir_name, bp_procfs_dir); - if (procfs_dir == 0) { + procfs_dir = proc_mkdir(current_pfs->dir_name, bp_procfs_dir); + if (!procfs_dir) { printk(KERN_DEBUG "Could not create procfs directory %s\n", current_pfs->dir_name); return -1; } current_pfs->bypass_entry = procfs_dir; - if (bypass_proc_create_entry_sd(&(current_pfs->bypass_info), BYPASS_INFO_ENTRY_SD, NULL, /* write */ - get_bypass_info_pfs, /* read */ - procfs_dir, pbp_device_block)) - ret = -1; - +#define ENTRY(x) ret |= procfs_add(#x, &x##_ops, pbp_device_block) + ENTRY(bypass_info); if (pbp_device_block->bp_caps & SW_CTL_CAP) { - /* Create set param proc's */ - if (bypass_proc_create_entry_sd(&(current_pfs->bypass_slave), BYPASS_SLAVE_ENTRY_SD, NULL, /* write */ - get_bypass_slave_pfs, /* read */ - procfs_dir, pbp_device_block)) - ret = -1; - - if (bypass_proc_create_entry_sd(&(current_pfs->bypass_caps), BYPASS_CAPS_ENTRY_SD, NULL, /* write */ - get_bypass_caps_pfs, /* read */ - procfs_dir, pbp_device_block)) - ret = -1; - - if (bypass_proc_create_entry_sd(&(current_pfs->wd_set_caps), WD_SET_CAPS_ENTRY_SD, NULL, /* write */ - get_wd_set_caps_pfs, /* read */ - procfs_dir, pbp_device_block)) - ret = -1; - if (bypass_proc_create_entry_sd(&(current_pfs->bypass_wd), BYPASS_WD_ENTRY_SD, set_bypass_wd_pfs, /* write */ - get_bypass_wd_pfs, /* read */ - procfs_dir, pbp_device_block)) - ret = -1; - - if (bypass_proc_create_entry_sd(&(current_pfs->wd_expire_time), WD_EXPIRE_TIME_ENTRY_SD, NULL, /* write */ - get_wd_expire_time_pfs, /* read */ - procfs_dir, pbp_device_block)) - ret = -1; - - if (bypass_proc_create_entry_sd(&(current_pfs->reset_bypass_wd), RESET_BYPASS_WD_ENTRY_SD, NULL, /* write */ - reset_bypass_wd_pfs, /* read */ - procfs_dir, pbp_device_block)) - ret = -1; - - if (bypass_proc_create_entry_sd(&(current_pfs->std_nic), STD_NIC_ENTRY_SD, set_std_nic_pfs, /* write */ - get_std_nic_pfs, /* read */ - procfs_dir, pbp_device_block)) - ret = -1; - + ENTRY(bypass_slave); + ENTRY(bypass_caps); + ENTRY(wd_set_caps); + ENTRY(bypass_wd); + ENTRY(wd_expire_time); + ENTRY(reset_bypass_wd); + ENTRY(std_nic); if (pbp_device_block->bp_caps & BP_CAP) { - if (bypass_proc_create_entry_sd(&(current_pfs->bypass), BYPASS_ENTRY_SD, set_bypass_pfs, /* write */ - get_bypass_pfs, /* read */ - procfs_dir, - pbp_device_block)) - ret = -1; - - if (bypass_proc_create_entry_sd(&(current_pfs->dis_bypass), DIS_BYPASS_ENTRY_SD, set_dis_bypass_pfs, /* write */ - get_dis_bypass_pfs, /* read */ - procfs_dir, - pbp_device_block)) - ret = -1; - - if (bypass_proc_create_entry_sd(&(current_pfs->bypass_pwup), BYPASS_PWUP_ENTRY_SD, set_bypass_pwup_pfs, /* write */ - get_bypass_pwup_pfs, /* read */ - procfs_dir, - pbp_device_block)) - ret = -1; - if (bypass_proc_create_entry_sd(&(current_pfs->bypass_pwoff), BYPASS_PWOFF_ENTRY_SD, set_bypass_pwoff_pfs, /* write */ - get_bypass_pwoff_pfs, /* read */ - procfs_dir, - pbp_device_block)) - ret = -1; - - if (bypass_proc_create_entry_sd(&(current_pfs->bypass_change), BYPASS_CHANGE_ENTRY_SD, NULL, /* write */ - get_bypass_change_pfs, /* read */ - procfs_dir, - pbp_device_block)) - ret = -1; + ENTRY(bypass); + ENTRY(dis_bypass); + ENTRY(bypass_pwup); + ENTRY(bypass_pwoff); + ENTRY(bypass_change); } - if (pbp_device_block->bp_caps & TAP_CAP) { - - if (bypass_proc_create_entry_sd(&(current_pfs->tap), TAP_ENTRY_SD, set_tap_pfs, /* write */ - get_tap_pfs, /* read */ - procfs_dir, - pbp_device_block)) - ret = -1; - - if (bypass_proc_create_entry_sd(&(current_pfs->dis_tap), DIS_TAP_ENTRY_SD, set_dis_tap_pfs, /* write */ - get_dis_tap_pfs, /* read */ - procfs_dir, - pbp_device_block)) - ret = -1; - - if (bypass_proc_create_entry_sd(&(current_pfs->tap_pwup), TAP_PWUP_ENTRY_SD, set_tap_pwup_pfs, /* write */ - get_tap_pwup_pfs, /* read */ - procfs_dir, - pbp_device_block)) - ret = -1; - - if (bypass_proc_create_entry_sd(&(current_pfs->tap_change), TAP_CHANGE_ENTRY_SD, NULL, /* write */ - get_tap_change_pfs, /* read */ - procfs_dir, - pbp_device_block)) - ret = -1; + ENTRY(tap); + ENTRY(dis_tap); + ENTRY(tap_pwup); + ENTRY(tap_change); } if (pbp_device_block->bp_caps & DISC_CAP) { - - if (bypass_proc_create_entry_sd(&(current_pfs->tap), DISC_ENTRY_SD, set_disc_pfs, /* write */ - get_disc_pfs, /* read */ - procfs_dir, - pbp_device_block)) - ret = -1; -#if 1 - - if (bypass_proc_create_entry_sd(&(current_pfs->dis_tap), DIS_DISC_ENTRY_SD, set_dis_disc_pfs, /* write */ - get_dis_disc_pfs, /* read */ - procfs_dir, - pbp_device_block)) - ret = -1; -#endif - - if (bypass_proc_create_entry_sd(&(current_pfs->tap_pwup), DISC_PWUP_ENTRY_SD, set_disc_pwup_pfs, /* write */ - get_disc_pwup_pfs, /* read */ - procfs_dir, - pbp_device_block)) - ret = -1; - - if (bypass_proc_create_entry_sd(&(current_pfs->tap_change), DISC_CHANGE_ENTRY_SD, NULL, /* write */ - get_disc_change_pfs, /* read */ - procfs_dir, - pbp_device_block)) - ret = -1; + ENTRY(disc); + ENTRY(dis_disc); + ENTRY(disc_pwup); + ENTRY(disc_change); } - if (bypass_proc_create_entry_sd(&(current_pfs->wd_exp_mode), WD_EXP_MODE_ENTRY_SD, set_wd_exp_mode_pfs, /* write */ - get_wd_exp_mode_pfs, /* read */ - procfs_dir, pbp_device_block)) - ret = -1; - - if (bypass_proc_create_entry_sd(&(current_pfs->wd_autoreset), WD_AUTORESET_ENTRY_SD, set_wd_autoreset_pfs, /* write */ - get_wd_autoreset_pfs, /* read */ - procfs_dir, pbp_device_block)) - ret = -1; - if (bypass_proc_create_entry_sd(&(current_pfs->tpl), TPL_ENTRY_SD, set_tpl_pfs, /* write */ - get_tpl_pfs, /* read */ - procfs_dir, pbp_device_block)) - ret = -1; + ENTRY(wd_exp_mode); + ENTRY(wd_autoreset); + ENTRY(tpl); #ifdef PMC_FIX_FLAG - if (bypass_proc_create_entry_sd(&(current_pfs->tpl), WAIT_AT_PWUP_ENTRY_SD, set_wait_at_pwup_pfs, /* write */ - get_wait_at_pwup_pfs, /* read */ - procfs_dir, pbp_device_block)) - ret = -1; - if (bypass_proc_create_entry_sd(&(current_pfs->tpl), HW_RESET_ENTRY_SD, set_hw_reset_pfs, /* write */ - get_hw_reset_pfs, /* read */ - procfs_dir, pbp_device_block)) - ret = -1; - + ENTRY(wait_at_pwup); + ENTRY(hw_reset); #endif - } +#undef ENTRY if (ret < 0) printk(KERN_DEBUG "Create proc entry failed\n"); @@ -8354,21 +7927,7 @@ int bypass_proc_remove_dev_sd(bpctl_dev_t *pbp_device_block) { struct bypass_pfs_sd *current_pfs = &pbp_device_block->bypass_pfs_set; - struct proc_dir_entry *pde = current_pfs->bypass_entry, *pde_curr = - NULL; - char name[256]; - - if (!pde) - return 0; - for (pde = pde->subdir; pde;) { - strcpy(name, pde->name); - pde_curr = pde; - pde = pde->next; - remove_proc_entry(name, current_pfs->bypass_entry); - } - if (!pde) - remove_proc_entry(current_pfs->dir_name, bp_procfs_dir); + remove_proc_subtree(current_pfs->dir_name, bp_procfs_dir); current_pfs->bypass_entry = NULL; - return 0; } From 685e55eb5192ac05085a8e486fcfa5849a0dd60c Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 5 Apr 2013 13:42:42 -0400 Subject: [PATCH 053/204] silicom: bury bp_proc.c It's a seriously rotten copy of parts of bp_mod.c; had been ifdefed out all along, lacks a bunch of declarations that would be needed if ifdef had been removed, all stuff in it is duplicated in bp_mod.c anyway... Signed-off-by: Al Viro --- drivers/staging/silicom/Makefile | 3 - drivers/staging/silicom/bp_proc.c | 1327 ----------------- .../staging/silicom/{bp_mod.c => bpctl_mod.c} | 0 3 files changed, 1330 deletions(-) delete mode 100644 drivers/staging/silicom/bp_proc.c rename drivers/staging/silicom/{bp_mod.c => bpctl_mod.c} (100%) diff --git a/drivers/staging/silicom/Makefile b/drivers/staging/silicom/Makefile index 80e6d12d156b..ca8359481c48 100644 --- a/drivers/staging/silicom/Makefile +++ b/drivers/staging/silicom/Makefile @@ -4,6 +4,3 @@ obj-$(CONFIG_BPCTL) += bpctl_mod.o obj-$(CONFIG_SBYPASS) += bypasslib/ - - -bpctl_mod-objs := bp_mod.o bp_proc.o diff --git a/drivers/staging/silicom/bp_proc.c b/drivers/staging/silicom/bp_proc.c deleted file mode 100644 index a01ca97b7665..000000000000 --- a/drivers/staging/silicom/bp_proc.c +++ /dev/null @@ -1,1327 +0,0 @@ -/******************************************************************************/ -/* */ -/* Copyright (c) 2004-2006 Silicom, Ltd */ -/* All rights reserved. */ -/* */ -/* This program is free software; you can redistribute it and/or modify */ -/* it under the terms of the GNU General Public License as published by */ -/* the Free Software Foundation, located in the file LICENSE. */ -/* */ -/* */ -/******************************************************************************/ - -#if defined(CONFIG_SMP) && !defined(__SMP__) -#define __SMP__ -#endif - -#include -#include -#include -/* #include */ -#include "bp_mod.h" - -#define BP_PROC_DIR "bypass" -/* #define BYPASS_SUPPORT "bypass" */ - -#ifdef BYPASS_SUPPORT - -#define GPIO6_SET_ENTRY_SD "gpio6_set" -#define GPIO6_CLEAR_ENTRY_SD "gpio6_clear" - -#define GPIO7_SET_ENTRY_SD "gpio7_set" -#define GPIO7_CLEAR_ENTRY_SD "gpio7_clear" - -#define PULSE_SET_ENTRY_SD "pulse_set" -#define ZERO_SET_ENTRY_SD "zero_set" -#define PULSE_GET1_ENTRY_SD "pulse_get1" -#define PULSE_GET2_ENTRY_SD "pulse_get2" - -#define CMND_ON_ENTRY_SD "cmnd_on" -#define CMND_OFF_ENTRY_SD "cmnd_off" -#define RESET_CONT_ENTRY_SD "reset_cont" - - /*COMMANDS*/ -#define BYPASS_INFO_ENTRY_SD "bypass_info" -#define BYPASS_SLAVE_ENTRY_SD "bypass_slave" -#define BYPASS_CAPS_ENTRY_SD "bypass_caps" -#define WD_SET_CAPS_ENTRY_SD "wd_set_caps" -#define BYPASS_ENTRY_SD "bypass" -#define BYPASS_CHANGE_ENTRY_SD "bypass_change" -#define BYPASS_WD_ENTRY_SD "bypass_wd" -#define WD_EXPIRE_TIME_ENTRY_SD "wd_expire_time" -#define RESET_BYPASS_WD_ENTRY_SD "reset_bypass_wd" -#define DIS_BYPASS_ENTRY_SD "dis_bypass" -#define BYPASS_PWUP_ENTRY_SD "bypass_pwup" -#define BYPASS_PWOFF_ENTRY_SD "bypass_pwoff" -#define STD_NIC_ENTRY_SD "std_nic" -#define STD_NIC_ENTRY_SD "std_nic" -#define TAP_ENTRY_SD "tap" -#define TAP_CHANGE_ENTRY_SD "tap_change" -#define DIS_TAP_ENTRY_SD "dis_tap" -#define TAP_PWUP_ENTRY_SD "tap_pwup" -#define TWO_PORT_LINK_ENTRY_SD "two_port_link" -#define WD_EXP_MODE_ENTRY_SD "wd_exp_mode" -#define WD_AUTORESET_ENTRY_SD "wd_autoreset" -#define TPL_ENTRY_SD "tpl" -#define WAIT_AT_PWUP_ENTRY_SD "wait_at_pwup" -#define HW_RESET_ENTRY_SD "hw_reset" -#define DISC_ENTRY_SD "disc" -#define DISC_CHANGE_ENTRY_SD "disc_change" -#define DIS_DISC_ENTRY_SD "dis_disc" -#define DISC_PWUP_ENTRY_SD "disc_pwup" - -static struct proc_dir_entry *bp_procfs_dir; - -static struct proc_dir_entry *proc_getdir(char *name, - struct proc_dir_entry *proc_dir) -{ - struct proc_dir_entry *pde = proc_dir; - for (pde = pde->subdir; pde; pde = pde->next) { - if (pde->namelen && (strcmp(name, pde->name) == 0)) { - /* directory exists */ - break; - } - } - if (pde == (struct proc_dir_entry *)0) { - /* create the directory */ - pde = create_proc_entry(name, S_IFDIR, proc_dir); - if (pde == (struct proc_dir_entry *)0) - return pde; - } - return pde; -} - -int -bypass_proc_create_entry_sd(struct pfs_unit *pfs_unit_curr, - char *proc_name, - write_proc_t *write_proc, - read_proc_t *read_proc, - struct proc_dir_entry *parent_pfs, void *data) -{ - strcpy(pfs_unit_curr->proc_name, proc_name); - pfs_unit_curr->proc_entry = create_proc_entry(pfs_unit_curr->proc_name, - S_IFREG | S_IRUSR | - S_IWUSR | S_IRGRP | - S_IROTH, parent_pfs); - if (pfs_unit_curr->proc_entry == 0) - return -1; - - pfs_unit_curr->proc_entry->read_proc = read_proc; - pfs_unit_curr->proc_entry->write_proc = write_proc; - pfs_unit_curr->proc_entry->data = data; - - return 0; - -} - -int -get_bypass_info_pfs(char *page, char **start, off_t off, int count, - int *eof, void *data) -{ - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - int len = 0; - - len += sprintf(page, "Name\t\t\t%s\n", pbp_device_block->bp_name); - len += - sprintf(page + len, "Firmware version\t0x%x\n", - pbp_device_block->bp_fw_ver); - - *eof = 1; - return len; -} - -int -get_bypass_slave_pfs(char *page, char **start, off_t off, int count, - int *eof, void *data) -{ - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - struct pci_dev *pci_slave_dev = pbp_device_block->bp_slave; - struct net_device *net_slave_dev; - int len = 0; - - if (is_bypass_fn(pbp_device_block)) { - net_slave_dev = pci_get_drvdata(pci_slave_dev); - if (net_slave_dev) - len = sprintf(page, "%s\n", net_slave_dev->name); - else - len = sprintf(page, "fail\n"); - } else - len = sprintf(page, "fail\n"); - - *eof = 1; - return len; -} - -int -get_bypass_caps_pfs(char *page, char **start, off_t off, int count, - int *eof, void *data) -{ - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int len = 0, ret = 0; - - ret = get_bypass_caps_fn(pbp_device_block); - if (ret == BP_NOT_CAP) - len = sprintf(page, "-1\n"); - else - len = sprintf(page, "0x%x\n", ret); - *eof = 1; - return len; - -} - -int -get_wd_set_caps_pfs(char *page, char **start, off_t off, int count, - int *eof, void *data) -{ - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int len = 0, ret = 0; - - ret = get_wd_set_caps_fn(pbp_device_block); - if (ret == BP_NOT_CAP) - len = sprintf(page, "-1\n"); - else - len = sprintf(page, "0x%x\n", ret); - *eof = 1; - return len; -} - -int -set_bypass_pfs(struct file *file, const char *buffer, - unsigned long count, void *data) -{ - - char kbuf[256]; - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int bypass_param = 0, length = 0; - - if (count > (sizeof(kbuf) - 1)) - return -1; - - if (copy_from_user(&kbuf, buffer, count)) - return -1; - - kbuf[count] = '\0'; - length = strlen(kbuf); - if (kbuf[length - 1] == '\n') - kbuf[--length] = '\0'; - - if (strcmp(kbuf, "on") == 0) - bypass_param = 1; - else if (strcmp(kbuf, "off") == 0) - bypass_param = 0; - - set_bypass_fn(pbp_device_block, bypass_param); - - return count; -} - -int -set_tap_pfs(struct file *file, const char *buffer, - unsigned long count, void *data) -{ - - char kbuf[256]; - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int tap_param = 0, length = 0; - - if (count > (sizeof(kbuf) - 1)) - return -1; - - if (copy_from_user(&kbuf, buffer, count)) - return -1; - - kbuf[count] = '\0'; - length = strlen(kbuf); - if (kbuf[length - 1] == '\n') - kbuf[--length] = '\0'; - - if (strcmp(kbuf, "on") == 0) - tap_param = 1; - else if (strcmp(kbuf, "off") == 0) - tap_param = 0; - - set_tap_fn(pbp_device_block, tap_param); - - return count; -} - -int -set_disc_pfs(struct file *file, const char *buffer, - unsigned long count, void *data) -{ - - char kbuf[256]; - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int tap_param = 0, length = 0; - - if (count > (sizeof(kbuf) - 1)) - return -1; - - if (copy_from_user(&kbuf, buffer, count)) - return -1; - - kbuf[count] = '\0'; - length = strlen(kbuf); - if (kbuf[length - 1] == '\n') - kbuf[--length] = '\0'; - - if (strcmp(kbuf, "on") == 0) - tap_param = 1; - else if (strcmp(kbuf, "off") == 0) - tap_param = 0; - - set_disc_fn(pbp_device_block, tap_param); - - return count; -} - -int -get_bypass_pfs(char *page, char **start, off_t off, int count, - int *eof, void *data) -{ - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int len = 0, ret = 0; - - ret = get_bypass_fn(pbp_device_block); - if (ret == BP_NOT_CAP) - len = sprintf(page, "fail\n"); - else if (ret == 1) - len = sprintf(page, "on\n"); - else if (ret == 0) - len = sprintf(page, "off\n"); - - *eof = 1; - return len; -} - -int -get_tap_pfs(char *page, char **start, off_t off, int count, - int *eof, void *data) -{ - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int len = 0, ret = 0; - - ret = get_tap_fn(pbp_device_block); - if (ret == BP_NOT_CAP) - len = sprintf(page, "fail\n"); - else if (ret == 1) - len = sprintf(page, "on\n"); - else if (ret == 0) - len = sprintf(page, "off\n"); - - *eof = 1; - return len; -} - -int -get_disc_pfs(char *page, char **start, off_t off, int count, - int *eof, void *data) -{ - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int len = 0, ret = 0; - - ret = get_disc_fn(pbp_device_block); - if (ret == BP_NOT_CAP) - len = sprintf(page, "fail\n"); - else if (ret == 1) - len = sprintf(page, "on\n"); - else if (ret == 0) - len = sprintf(page, "off\n"); - - *eof = 1; - return len; -} - -int -get_bypass_change_pfs(char *page, char **start, off_t off, int count, - int *eof, void *data) -{ - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int len = 0, ret = 0; - - ret = get_bypass_change_fn(pbp_device_block); - if (ret == 1) - len = sprintf(page, "on\n"); - else if (ret == 0) - len = sprintf(page, "off\n"); - else - len = sprintf(page, "fail\n"); - - *eof = 1; - return len; -} - -int -get_tap_change_pfs(char *page, char **start, off_t off, int count, - int *eof, void *data) -{ - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int len = 0, ret = 0; - - ret = get_tap_change_fn(pbp_device_block); - if (ret == 1) - len = sprintf(page, "on\n"); - else if (ret == 0) - len = sprintf(page, "off\n"); - else - len = sprintf(page, "fail\n"); - - *eof = 1; - return len; -} - -int -get_disc_change_pfs(char *page, char **start, off_t off, int count, - int *eof, void *data) -{ - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int len = 0, ret = 0; - - ret = get_disc_change_fn(pbp_device_block); - if (ret == 1) - len = sprintf(page, "on\n"); - else if (ret == 0) - len = sprintf(page, "off\n"); - else - len = sprintf(page, "fail\n"); - - *eof = 1; - return len; -} - -int -set_bypass_wd_pfs(struct file *file, const char *buffer, - unsigned long count, void *data) -{ - - char kbuf[256]; - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - unsigned int timeout = 0; - char *timeout_ptr = kbuf; - - if (copy_from_user(&kbuf, buffer, count)) - return -1; - - timeout_ptr = kbuf; - timeout = atoi(&timeout_ptr); - - set_bypass_wd_fn(pbp_device_block, timeout); - - return count; -} - -int -get_bypass_wd_pfs(char *page, char **start, off_t off, int count, - int *eof, void *data) -{ - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int len = 0, ret = 0, timeout = 0; - - ret = get_bypass_wd_fn(pbp_device_block, &timeout); - if (ret == BP_NOT_CAP) - len = sprintf(page, "fail\n"); - else if (timeout == -1) - len = sprintf(page, "unknown\n"); - else if (timeout == 0) - len = sprintf(page, "disable\n"); - else - len = sprintf(page, "%d\n", timeout); - - *eof = 1; - return len; -} - -int -get_wd_expire_time_pfs(char *page, char **start, off_t off, int count, - int *eof, void *data) -{ - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int len = 0, ret = 0, timeout = 0; - - ret = get_wd_expire_time_fn(pbp_device_block, &timeout); - if (ret == BP_NOT_CAP) - len = sprintf(page, "fail\n"); - else if (timeout == -1) - len = sprintf(page, "expire\n"); - else if (timeout == 0) - len = sprintf(page, "disable\n"); - - else - len = sprintf(page, "%d\n", timeout); - *eof = 1; - return len; -} - -int -get_tpl_pfs(char *page, char **start, off_t off, int count, - int *eof, void *data) -{ - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int len = 0, ret = 0; - - ret = get_tpl_fn(pbp_device_block); - if (ret == BP_NOT_CAP) - len = sprintf(page, "fail\n"); - else if (ret == 1) - len = sprintf(page, "on\n"); - else if (ret == 0) - len = sprintf(page, "off\n"); - - *eof = 1; - return len; -} - -#ifdef PMC_FIX_FLAG -int -get_wait_at_pwup_pfs(char *page, char **start, off_t off, int count, - int *eof, void *data) -{ - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int len = 0, ret = 0; - - ret = get_bp_wait_at_pwup_fn(pbp_device_block); - if (ret == BP_NOT_CAP) - len = sprintf(page, "fail\n"); - else if (ret == 1) - len = sprintf(page, "on\n"); - else if (ret == 0) - len = sprintf(page, "off\n"); - - *eof = 1; - return len; -} - -int -get_hw_reset_pfs(char *page, char **start, off_t off, int count, - int *eof, void *data) -{ - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int len = 0, ret = 0; - - ret = get_bp_hw_reset_fn(pbp_device_block); - if (ret == BP_NOT_CAP) - len = sprintf(page, "fail\n"); - else if (ret == 1) - len = sprintf(page, "on\n"); - else if (ret == 0) - len = sprintf(page, "off\n"); - - *eof = 1; - return len; -} - -#endif /*PMC_WAIT_FLAG */ - -int -reset_bypass_wd_pfs(char *page, char **start, off_t off, int count, - int *eof, void *data) -{ - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int len = 0, ret = 0; - - ret = reset_bypass_wd_timer_fn(pbp_device_block); - if (ret == BP_NOT_CAP) - len = sprintf(page, "fail\n"); - else if (ret == 0) - len = sprintf(page, "disable\n"); - else if (ret == 1) - len = sprintf(page, "success\n"); - - *eof = 1; - return len; -} - -int -set_dis_bypass_pfs(struct file *file, const char *buffer, - unsigned long count, void *data) -{ - - char kbuf[256]; - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int bypass_param = 0, length = 0; - - if (copy_from_user(&kbuf, buffer, count)) - return -1; - - kbuf[count] = '\0'; - length = strlen(kbuf); - if (kbuf[length - 1] == '\n') - kbuf[--length] = '\0'; - - if (strcmp(kbuf, "on") == 0) - bypass_param = 1; - else if (strcmp(kbuf, "off") == 0) - bypass_param = 0; - - set_dis_bypass_fn(pbp_device_block, bypass_param); - - return count; -} - -int -set_dis_tap_pfs(struct file *file, const char *buffer, - unsigned long count, void *data) -{ - - char kbuf[256]; - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int tap_param = 0, length = 0; - - if (copy_from_user(&kbuf, buffer, count)) - return -1; - - kbuf[count] = '\0'; - length = strlen(kbuf); - if (kbuf[length - 1] == '\n') - kbuf[--length] = '\0'; - - if (strcmp(kbuf, "on") == 0) - tap_param = 1; - else if (strcmp(kbuf, "off") == 0) - tap_param = 0; - - set_dis_tap_fn(pbp_device_block, tap_param); - - return count; -} - -int -set_dis_disc_pfs(struct file *file, const char *buffer, - unsigned long count, void *data) -{ - - char kbuf[256]; - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int tap_param = 0, length = 0; - - if (copy_from_user(&kbuf, buffer, count)) - return -1; - - kbuf[count] = '\0'; - length = strlen(kbuf); - if (kbuf[length - 1] == '\n') - kbuf[--length] = '\0'; - - if (strcmp(kbuf, "on") == 0) - tap_param = 1; - else if (strcmp(kbuf, "off") == 0) - tap_param = 0; - - set_dis_disc_fn(pbp_device_block, tap_param); - - return count; -} - -int -get_dis_bypass_pfs(char *page, char **start, off_t off, int count, - int *eof, void *data) -{ - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int len = 0, ret = 0; - - ret = get_dis_bypass_fn(pbp_device_block); - if (ret == BP_NOT_CAP) - len = sprintf(page, "fail\n"); - else if (ret == 0) - len = sprintf(page, "off\n"); - else - len = sprintf(page, "on\n"); - - *eof = 1; - return len; -} - -int -get_dis_tap_pfs(char *page, char **start, off_t off, int count, - int *eof, void *data) -{ - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int len = 0, ret = 0; - - ret = get_dis_tap_fn(pbp_device_block); - if (ret == BP_NOT_CAP) - len = sprintf(page, "fail\n"); - else if (ret == 0) - len = sprintf(page, "off\n"); - else - len = sprintf(page, "on\n"); - - *eof = 1; - return len; -} - -int -get_dis_disc_pfs(char *page, char **start, off_t off, int count, - int *eof, void *data) -{ - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int len = 0, ret = 0; - - ret = get_dis_disc_fn(pbp_device_block); - if (ret == BP_NOT_CAP) - len = sprintf(page, "fail\n"); - else if (ret == 0) - len = sprintf(page, "off\n"); - else - len = sprintf(page, "on\n"); - - *eof = 1; - return len; -} - -int -set_bypass_pwup_pfs(struct file *file, const char *buffer, - unsigned long count, void *data) -{ - - char kbuf[256]; - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int bypass_param = 0, length = 0; - - if (copy_from_user(&kbuf, buffer, count)) - return -1; - - kbuf[count] = '\0'; - length = strlen(kbuf); - if (kbuf[length - 1] == '\n') - kbuf[--length] = '\0'; - - if (strcmp(kbuf, "on") == 0) - bypass_param = 1; - else if (strcmp(kbuf, "off") == 0) - bypass_param = 0; - - set_bypass_pwup_fn(pbp_device_block, bypass_param); - - return count; -} - -int -set_bypass_pwoff_pfs(struct file *file, const char *buffer, - unsigned long count, void *data) -{ - - char kbuf[256]; - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int bypass_param = 0, length = 0; - - if (copy_from_user(&kbuf, buffer, count)) - return -1; - - kbuf[count] = '\0'; - length = strlen(kbuf); - if (kbuf[length - 1] == '\n') - kbuf[--length] = '\0'; - - if (strcmp(kbuf, "on") == 0) - bypass_param = 1; - else if (strcmp(kbuf, "off") == 0) - bypass_param = 0; - - set_bypass_pwoff_fn(pbp_device_block, bypass_param); - - return count; -} - -int -set_tap_pwup_pfs(struct file *file, const char *buffer, - unsigned long count, void *data) -{ - - char kbuf[256]; - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int tap_param = 0, length = 0; - - if (copy_from_user(&kbuf, buffer, count)) - return -1; - - kbuf[count] = '\0'; - length = strlen(kbuf); - if (kbuf[length - 1] == '\n') - kbuf[--length] = '\0'; - - if (strcmp(kbuf, "on") == 0) - tap_param = 1; - else if (strcmp(kbuf, "off") == 0) - tap_param = 0; - - set_tap_pwup_fn(pbp_device_block, tap_param); - - return count; -} - -int -set_disc_pwup_pfs(struct file *file, const char *buffer, - unsigned long count, void *data) -{ - - char kbuf[256]; - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int tap_param = 0, length = 0; - - if (copy_from_user(&kbuf, buffer, count)) - return -1; - - kbuf[count] = '\0'; - length = strlen(kbuf); - if (kbuf[length - 1] == '\n') - kbuf[--length] = '\0'; - - if (strcmp(kbuf, "on") == 0) - tap_param = 1; - else if (strcmp(kbuf, "off") == 0) - tap_param = 0; - - set_disc_pwup_fn(pbp_device_block, tap_param); - - return count; -} - -int -get_bypass_pwup_pfs(char *page, char **start, off_t off, int count, - int *eof, void *data) -{ - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int len = 0, ret = 0; - - ret = get_bypass_pwup_fn(pbp_device_block); - if (ret == BP_NOT_CAP) - len = sprintf(page, "fail\n"); - else if (ret == 0) - len = sprintf(page, "off\n"); - else - len = sprintf(page, "on\n"); - - *eof = 1; - return len; -} - -int -get_bypass_pwoff_pfs(char *page, char **start, off_t off, int count, - int *eof, void *data) -{ - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int len = 0, ret = 0; - - ret = get_bypass_pwoff_fn(pbp_device_block); - if (ret == BP_NOT_CAP) - len = sprintf(page, "fail\n"); - else if (ret == 0) - len = sprintf(page, "off\n"); - else - len = sprintf(page, "on\n"); - - *eof = 1; - return len; -} - -int -get_tap_pwup_pfs(char *page, char **start, off_t off, int count, - int *eof, void *data) -{ - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int len = 0, ret = 0; - - ret = get_tap_pwup_fn(pbp_device_block); - if (ret == BP_NOT_CAP) - len = sprintf(page, "fail\n"); - else if (ret == 0) - len = sprintf(page, "off\n"); - else - len = sprintf(page, "on\n"); - - *eof = 1; - return len; -} - -int -get_disc_pwup_pfs(char *page, char **start, off_t off, int count, - int *eof, void *data) -{ - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int len = 0, ret = 0; - - ret = get_disc_pwup_fn(pbp_device_block); - if (ret == BP_NOT_CAP) - len = sprintf(page, "fail\n"); - else if (ret == 0) - len = sprintf(page, "off\n"); - else - len = sprintf(page, "on\n"); - - *eof = 1; - return len; -} - -int -set_std_nic_pfs(struct file *file, const char *buffer, - unsigned long count, void *data) -{ - - char kbuf[256]; - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int bypass_param = 0, length = 0; - - if (copy_from_user(&kbuf, buffer, count)) - return -1; - - kbuf[count] = '\0'; - length = strlen(kbuf); - if (kbuf[length - 1] == '\n') - kbuf[--length] = '\0'; - - if (strcmp(kbuf, "on") == 0) - bypass_param = 1; - else if (strcmp(kbuf, "off") == 0) - bypass_param = 0; - - set_std_nic_fn(pbp_device_block, bypass_param); - - return count; -} - -int -get_std_nic_pfs(char *page, char **start, off_t off, int count, - int *eof, void *data) -{ - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int len = 0, ret = 0; - - ret = get_std_nic_fn(pbp_device_block); - if (ret == BP_NOT_CAP) - len = sprintf(page, "fail\n"); - else if (ret == 0) - len = sprintf(page, "off\n"); - else - len = sprintf(page, "on\n"); - - *eof = 1; - return len; -} - -int -get_wd_exp_mode_pfs(char *page, char **start, off_t off, int count, - int *eof, void *data) -{ - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int len = 0, ret = 0; - - ret = get_wd_exp_mode_fn(pbp_device_block); - if (ret == 1) - len = sprintf(page, "tap\n"); - else if (ret == 0) - len = sprintf(page, "bypass\n"); - else if (ret == 2) - len = sprintf(page, "disc\n"); - - else - len = sprintf(page, "fail\n"); - - *eof = 1; - return len; -} - -int -set_wd_exp_mode_pfs(struct file *file, const char *buffer, - unsigned long count, void *data) -{ - - char kbuf[256]; - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int bypass_param = 0, length = 0; - - if (count > (sizeof(kbuf) - 1)) - return -1; - - if (copy_from_user(&kbuf, buffer, count)) - return -1; - - kbuf[count] = '\0'; - length = strlen(kbuf); - if (kbuf[length - 1] == '\n') - kbuf[--length] = '\0'; - - if (strcmp(kbuf, "tap") == 0) - bypass_param = 1; - else if (strcmp(kbuf, "bypass") == 0) - bypass_param = 0; - else if (strcmp(kbuf, "disc") == 0) - bypass_param = 2; - - set_wd_exp_mode_fn(pbp_device_block, bypass_param); - - return count; -} - -int -get_wd_autoreset_pfs(char *page, char **start, off_t off, int count, - int *eof, void *data) -{ - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int len = 0, ret = 0; - - ret = get_wd_autoreset_fn(pbp_device_block); - if (ret >= 0) - len = sprintf(page, "%d\n", ret); - else - len = sprintf(page, "fail\n"); - - *eof = 1; - return len; -} - -int -set_wd_autoreset_pfs(struct file *file, const char *buffer, - unsigned long count, void *data) -{ - char kbuf[256]; - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - u32 timeout = 0; - char *timeout_ptr = kbuf; - - if (copy_from_user(&kbuf, buffer, count)) - return -1; - - timeout_ptr = kbuf; - timeout = atoi(&timeout_ptr); - - set_wd_autoreset_fn(pbp_device_block, timeout); - - return count; -} - -int -set_tpl_pfs(struct file *file, const char *buffer, - unsigned long count, void *data) -{ - - char kbuf[256]; - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int tpl_param = 0, length = 0; - - if (count > (sizeof(kbuf) - 1)) - return -1; - - if (copy_from_user(&kbuf, buffer, count)) - return -1; - - kbuf[count] = '\0'; - length = strlen(kbuf); - if (kbuf[length - 1] == '\n') - kbuf[--length] = '\0'; - - if (strcmp(kbuf, "on") == 0) - tpl_param = 1; - else if (strcmp(kbuf, "off") == 0) - tpl_param = 0; - - set_tpl_fn(pbp_device_block, tpl_param); - - return count; -} - -#ifdef PMC_FIX_FLAG -int -set_wait_at_pwup_pfs(struct file *file, const char *buffer, - unsigned long count, void *data) -{ - - char kbuf[256]; - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int tpl_param = 0, length = 0; - - if (count > (sizeof(kbuf) - 1)) - return -1; - - if (copy_from_user(&kbuf, buffer, count)) - return -1; - - kbuf[count] = '\0'; - length = strlen(kbuf); - if (kbuf[length - 1] == '\n') - kbuf[--length] = '\0'; - - if (strcmp(kbuf, "on") == 0) - tpl_param = 1; - else if (strcmp(kbuf, "off") == 0) - tpl_param = 0; - - set_bp_wait_at_pwup_fn(pbp_device_block, tpl_param); - - return count; -} - -int -set_hw_reset_pfs(struct file *file, const char *buffer, - unsigned long count, void *data) -{ - - char kbuf[256]; - bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data; - - int tpl_param = 0, length = 0; - - if (count > (sizeof(kbuf) - 1)) - return -1; - - if (copy_from_user(&kbuf, buffer, count)) - return -1; - - kbuf[count] = '\0'; - length = strlen(kbuf); - if (kbuf[length - 1] == '\n') - kbuf[--length] = '\0'; - - if (strcmp(kbuf, "on") == 0) - tpl_param = 1; - else if (strcmp(kbuf, "off") == 0) - tpl_param = 0; - - set_bp_hw_reset_fn(pbp_device_block, tpl_param); - - return count; -} - -#endif /*PMC_FIX_FLAG */ - -int bypass_proc_create_dev_sd(bpctl_dev_t *pbp_device_block) -{ - struct bypass_pfs_sd *current_pfs = &(pbp_device_block->bypass_pfs_set); - static struct proc_dir_entry *procfs_dir; - int ret = 0; - - sprintf(current_pfs->dir_name, "bypass_%s", dev->name); - - if (!bp_procfs_dir) - return -1; - - /* create device proc dir */ - procfs_dir = proc_getdir(current_pfs->dir_name, bp_procfs_dir); - if (procfs_dir == 0) { - printk(KERN_DEBUG "Could not create procfs directory %s\n", - current_pfs->dir_name); - return -1; - } - current_pfs->bypass_entry = procfs_dir; - - if (bypass_proc_create_entry(&(current_pfs->bypass_info), BYPASS_INFO_ENTRY_SD, NULL, /* write */ - get_bypass_info_pfs, /* read */ - procfs_dir, pbp_device_block)) - ret = -1; - - if (pbp_device_block->bp_caps & SW_CTL_CAP) { - - /* Create set param proc's */ - if (bypass_proc_create_entry_sd(&(current_pfs->bypass_slave), BYPASS_SLAVE_ENTRY_SD, NULL, /* write */ - get_bypass_slave_pfs, /* read */ - procfs_dir, pbp_device_block)) - ret = -1; - - if (bypass_proc_create_entry_sd(&(current_pfs->bypass_caps), BYPASS_CAPS_ENTRY_SD, NULL, /* write */ - get_bypass_caps_pfs, /* read */ - procfs_dir, pbp_device_block)) - ret = -1; - - if (bypass_proc_create_entry_sd(&(current_pfs->wd_set_caps), WD_SET_CAPS_ENTRY_SD, NULL, /* write */ - get_wd_set_caps_pfs, /* read */ - procfs_dir, pbp_device_block)) - ret = -1; - if (bypass_proc_create_entry_sd(&(current_pfs->bypass_wd), BYPASS_WD_ENTRY_SD, set_bypass_wd_pfs, /* write */ - get_bypass_wd_pfs, /* read */ - procfs_dir, pbp_device_block)) - ret = -1; - - if (bypass_proc_create_entry_sd(&(current_pfs->wd_expire_time), WD_EXPIRE_TIME_ENTRY_SD, NULL, /* write */ - get_wd_expire_time_pfs, /* read */ - procfs_dir, pbp_device_block)) - ret = -1; - - if (bypass_proc_create_entry_sd(&(current_pfs->reset_bypass_wd), RESET_BYPASS_WD_ENTRY_SD, NULL, /* write */ - reset_bypass_wd_pfs, /* read */ - procfs_dir, pbp_device_block)) - ret = -1; - - if (bypass_proc_create_entry_sd(&(current_pfs->std_nic), STD_NIC_ENTRY_SD, set_std_nic_pfs, /* write */ - get_std_nic_pfs, /* read */ - procfs_dir, pbp_device_block)) - ret = -1; - - if (pbp_device_block->bp_caps & BP_CAP) { - if (bypass_proc_create_entry_sd(&(current_pfs->bypass), BYPASS_ENTRY_SD, set_bypass_pfs, /* write */ - get_bypass_pfs, /* read */ - procfs_dir, - pbp_device_block)) - ret = -1; - - if (bypass_proc_create_entry_sd(&(current_pfs->dis_bypass), DIS_BYPASS_ENTRY_SD, set_dis_bypass_pfs, /* write */ - get_dis_bypass_pfs, /* read */ - procfs_dir, - pbp_device_block)) - ret = -1; - - if (bypass_proc_create_entry_sd(&(current_pfs->bypass_pwup), BYPASS_PWUP_ENTRY_SD, set_bypass_pwup_pfs, /* write */ - get_bypass_pwup_pfs, /* read */ - procfs_dir, - pbp_device_block)) - ret = -1; - if (bypass_proc_create_entry_sd(&(current_pfs->bypass_pwoff), BYPASS_PWOFF_ENTRY_SD, set_bypass_pwoff_pfs, /* write */ - get_bypass_pwoff_pfs, /* read */ - procfs_dir, - pbp_device_block)) - ret = -1; - - if (bypass_proc_create_entry_sd(&(current_pfs->bypass_change), BYPASS_CHANGE_ENTRY_SD, NULL, /* write */ - get_bypass_change_pfs, /* read */ - procfs_dir, - pbp_device_block)) - ret = -1; - } - - if (pbp_device_block->bp_caps & TAP_CAP) { - - if (bypass_proc_create_entry_sd(&(current_pfs->tap), TAP_ENTRY_SD, set_tap_pfs, /* write */ - get_tap_pfs, /* read */ - procfs_dir, - pbp_device_block)) - ret = -1; - - if (bypass_proc_create_entry_sd(&(current_pfs->dis_tap), DIS_TAP_ENTRY_SD, set_dis_tap_pfs, /* write */ - get_dis_tap_pfs, /* read */ - procfs_dir, - pbp_device_block)) - ret = -1; - - if (bypass_proc_create_entry_sd(&(current_pfs->tap_pwup), TAP_PWUP_ENTRY_SD, set_tap_pwup_pfs, /* write */ - get_tap_pwup_pfs, /* read */ - procfs_dir, - pbp_device_block)) - ret = -1; - - if (bypass_proc_create_entry_sd(&(current_pfs->tap_change), TAP_CHANGE_ENTRY_SD, NULL, /* write */ - get_tap_change_pfs, /* read */ - procfs_dir, - pbp_device_block)) - ret = -1; - } - if (pbp_device_block->bp_caps & DISC_CAP) { - - if (bypass_proc_create_entry_sd(&(current_pfs->tap), DISC_ENTRY_SD, set_disc_pfs, /* write */ - get_disc_pfs, /* read */ - procfs_dir, - pbp_device_block)) - ret = -1; -#if 1 - - if (bypass_proc_create_entry_sd(&(current_pfs->dis_tap), DIS_DISC_ENTRY_SD, set_dis_disc_pfs, /* write */ - get_dis_disc_pfs, /* read */ - procfs_dir, - pbp_device_block)) - ret = -1; -#endif - - if (bypass_proc_create_entry_sd(&(current_pfs->tap_pwup), DISC_PWUP_ENTRY_SD, set_disc_pwup_pfs, /* write */ - get_disc_pwup_pfs, /* read */ - procfs_dir, - pbp_device_block)) - ret = -1; - - if (bypass_proc_create_entry_sd(&(current_pfs->tap_change), DISC_CHANGE_ENTRY_SD, NULL, /* write */ - get_disc_change_pfs, /* read */ - procfs_dir, - pbp_device_block)) - ret = -1; - } - - if (bypass_proc_create_entry_sd(&(current_pfs->wd_exp_mode), WD_EXP_MODE_ENTRY_SD, set_wd_exp_mode_pfs, /* write */ - get_wd_exp_mode_pfs, /* read */ - procfs_dir, pbp_device_block)) - ret = -1; - - if (bypass_proc_create_entry_sd(&(current_pfs->wd_autoreset), WD_AUTORESET_ENTRY_SD, set_wd_autoreset_pfs, /* write */ - get_wd_autoreset_pfs, /* read */ - procfs_dir, pbp_device_block)) - ret = -1; - if (bypass_proc_create_entry_sd(&(current_pfs->tpl), TPL_ENTRY_SD, set_tpl_pfs, /* write */ - get_tpl_pfs, /* read */ - procfs_dir, pbp_device_block)) - ret = -1; -#ifdef PMC_FIX_FLAG - if (bypass_proc_create_entry_sd(&(current_pfs->tpl), WAIT_AT_PWUP_ENTRY_SD, set_wait_at_pwup_pfs, /* write */ - get_wait_at_pwup_pfs, /* read */ - procfs_dir, pbp_device_block)) - ret = -1; - if (bypass_proc_create_entry_sd(&(current_pfs->tpl), HW_RESET_ENTRY_SD, set_hw_reset_pfs, /* write */ - get_hw_reset_pfs, /* read */ - procfs_dir, pbp_device_block)) - ret = -1; - -#endif - - } - if (ret < 0) - printk(KERN_DEBUG "Create proc entry failed\n"); - - return ret; -} - -int bypass_proc_remove_dev_sd(bpctl_dev_t *pbp_device_block) -{ - - struct bypass_pfs_sd *current_pfs = &pbp_device_block->bypass_pfs_set; - struct proc_dir_entry *pde = current_pfs->bypass_entry, *pde_curr = - NULL; - char name[256]; - - for (pde = pde->subdir; pde;) { - strcpy(name, pde->name); - pde_curr = pde; - pde = pde->next; - remove_proc_entry(name, current_pfs->bypass_entry); - } - if (!pde) - remove_proc_entry(current_pfs->dir_name, bp_procfs_dir); - - return 0; -} - -#endif /* BYPASS_SUPPORT */ diff --git a/drivers/staging/silicom/bp_mod.c b/drivers/staging/silicom/bpctl_mod.c similarity index 100% rename from drivers/staging/silicom/bp_mod.c rename to drivers/staging/silicom/bpctl_mod.c From 21ba37c9cf2f2dcadaabd79dff384537124d216c Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sat, 30 Mar 2013 20:34:21 -0400 Subject: [PATCH 054/204] i2o: use proc_remove_subtree() Signed-off-by: Al Viro --- drivers/message/i2o/i2o_proc.c | 51 +--------------------------------- 1 file changed, 1 insertion(+), 50 deletions(-) diff --git a/drivers/message/i2o/i2o_proc.c b/drivers/message/i2o/i2o_proc.c index 8001aa6bfb48..15c1e480c0dd 100644 --- a/drivers/message/i2o/i2o_proc.c +++ b/drivers/message/i2o/i2o_proc.c @@ -1894,25 +1894,6 @@ static int i2o_proc_create_entries(struct proc_dir_entry *dir, return 0; } -/** - * i2o_proc_subdir_remove - Remove child entries from a proc entry - * @dir: proc dir entry from which the childs should be removed - * - * Iterate over each i2o proc entry under dir and remove it. If the child - * also has entries, remove them too. - */ -static void i2o_proc_subdir_remove(struct proc_dir_entry *dir) -{ - struct proc_dir_entry *pe, *tmp; - pe = dir->subdir; - while (pe) { - tmp = pe->next; - i2o_proc_subdir_remove(pe); - remove_proc_entry(pe->name, dir); - pe = tmp; - } -}; - /** * i2o_proc_device_add - Add an I2O device to the proc dir * @dir: proc dir entry to which the device should be added @@ -1987,31 +1968,6 @@ static int i2o_proc_iop_add(struct proc_dir_entry *dir, return 0; } -/** - * i2o_proc_iop_remove - Removes an I2O controller from the i2o proc tree - * @dir: parent proc dir entry - * @c: I2O controller which should be removed - * - * Iterate over each i2o proc entry and search controller c. If it is found - * remove it from the tree. - */ -static void i2o_proc_iop_remove(struct proc_dir_entry *dir, - struct i2o_controller *c) -{ - struct proc_dir_entry *pe, *tmp; - - pe = dir->subdir; - while (pe) { - tmp = pe->next; - if (pe->data == c) { - i2o_proc_subdir_remove(pe); - remove_proc_entry(pe->name, dir); - } - osm_debug("removing IOP /proc/i2o/%s\n", c->name); - pe = tmp; - } -} - /** * i2o_proc_fs_create - Create the i2o proc fs. * @@ -2042,12 +1998,7 @@ static int __init i2o_proc_fs_create(void) */ static int __exit i2o_proc_fs_destroy(void) { - struct i2o_controller *c; - - list_for_each_entry(c, &i2o_controllers, list) - i2o_proc_iop_remove(i2o_proc_dir_root, c); - - remove_proc_entry("i2o", NULL); + remove_proc_subtree("i2o", NULL); return 0; }; From b6cdc7310338e204224f865918f774eb6db0b75d Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sat, 30 Mar 2013 21:20:14 -0400 Subject: [PATCH 055/204] procfs: don't allow to use proc_create, create_proc_entry, etc. for directories Signed-off-by: Al Viro --- fs/proc/generic.c | 57 +++++++++++++++++++++-------------------------- fs/proc/inode.c | 4 ++-- 2 files changed, 27 insertions(+), 34 deletions(-) diff --git a/fs/proc/generic.c b/fs/proc/generic.c index 21e1a8f1659d..6bce60703c76 100644 --- a/fs/proc/generic.c +++ b/fs/proc/generic.c @@ -541,19 +541,18 @@ static int proc_register(struct proc_dir_entry * dir, struct proc_dir_entry * dp return ret; if (S_ISDIR(dp->mode)) { - if (dp->proc_iops == NULL) { - dp->proc_fops = &proc_dir_operations; - dp->proc_iops = &proc_dir_inode_operations; - } + dp->proc_fops = &proc_dir_operations; + dp->proc_iops = &proc_dir_inode_operations; dir->nlink++; } else if (S_ISLNK(dp->mode)) { - if (dp->proc_iops == NULL) - dp->proc_iops = &proc_link_inode_operations; + dp->proc_iops = &proc_link_inode_operations; } else if (S_ISREG(dp->mode)) { if (dp->proc_fops == NULL) dp->proc_fops = &proc_file_operations; - if (dp->proc_iops == NULL) - dp->proc_iops = &proc_file_inode_operations; + dp->proc_iops = &proc_file_inode_operations; + } else { + WARN_ON(1); + return -EINVAL; } spin_lock(&proc_subdir_lock); @@ -680,21 +679,19 @@ struct proc_dir_entry *create_proc_entry(const char *name, umode_t mode, struct proc_dir_entry *parent) { struct proc_dir_entry *ent; - nlink_t nlink; - if (S_ISDIR(mode)) { - if ((mode & S_IALLUGO) == 0) - mode |= S_IRUGO | S_IXUGO; - nlink = 2; - } else { - if ((mode & S_IFMT) == 0) - mode |= S_IFREG; - if ((mode & S_IALLUGO) == 0) - mode |= S_IRUGO; - nlink = 1; + if ((mode & S_IFMT) == 0) + mode |= S_IFREG; + + if (!S_ISREG(mode)) { + WARN_ON(1); /* use proc_mkdir(), damnit */ + return NULL; } - ent = __proc_create(&parent, name, mode, nlink); + if ((mode & S_IALLUGO) == 0) + mode |= S_IRUGO; + + ent = __proc_create(&parent, name, mode, 1); if (ent) { if (proc_register(parent, ent) < 0) { kfree(ent); @@ -711,21 +708,17 @@ struct proc_dir_entry *proc_create_data(const char *name, umode_t mode, void *data) { struct proc_dir_entry *pde; - nlink_t nlink; + if ((mode & S_IFMT) == 0) + mode |= S_IFREG; - if (S_ISDIR(mode)) { - if ((mode & S_IALLUGO) == 0) - mode |= S_IRUGO | S_IXUGO; - nlink = 2; - } else { - if ((mode & S_IFMT) == 0) - mode |= S_IFREG; - if ((mode & S_IALLUGO) == 0) - mode |= S_IRUGO; - nlink = 1; + if (!S_ISREG(mode)) { + WARN_ON(1); /* use proc_mkdir() */ + return NULL; } - pde = __proc_create(&parent, name, mode, nlink); + if ((mode & S_IALLUGO) == 0) + mode |= S_IRUGO; + pde = __proc_create(&parent, name, mode, 1); if (!pde) goto out; pde->proc_fops = proc_fops; diff --git a/fs/proc/inode.c b/fs/proc/inode.c index 908e97457319..a4aaaeee3342 100644 --- a/fs/proc/inode.c +++ b/fs/proc/inode.c @@ -462,8 +462,8 @@ struct inode *proc_get_inode(struct super_block *sb, struct proc_dir_entry *de) inode->i_size = de->size; if (de->nlink) set_nlink(inode, de->nlink); - if (de->proc_iops) - inode->i_op = de->proc_iops; + WARN_ON(!de->proc_iops); + inode->i_op = de->proc_iops; if (de->proc_fops) { if (S_ISREG(inode->i_mode)) { #ifdef CONFIG_COMPAT From 0ffddfbb834557b8babc7f050b83d11dbcbb1008 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sat, 30 Mar 2013 23:58:05 -0400 Subject: [PATCH 056/204] scsi: saner replacements for ->proc_info() It's still an obsolete interface; don't introduce those in new drivers. However, it's saner than the ->proc_info() and commits after this one will convert the existing ->proc_info() users to it. The read side is ->show_info(seq_file *, struct Scsi_Host *); use seq_... for generating contents. The write side is ->write_info(struct Scsi_Host *, char *, int). Again, this is driven by procfs needs; we are going to kill ->write_proc() and ->read_proc() and this is the main obstacle to burying that piece of shit. Signed-off-by: Al Viro --- drivers/scsi/scsi_proc.c | 68 ++++++++++++++++++++++++++++++++++------ include/scsi/scsi_host.h | 5 ++- 2 files changed, 63 insertions(+), 10 deletions(-) diff --git a/drivers/scsi/scsi_proc.c b/drivers/scsi/scsi_proc.c index ad747dc337da..6f4c3cff03bb 100644 --- a/drivers/scsi/scsi_proc.c +++ b/drivers/scsi/scsi_proc.c @@ -97,6 +97,49 @@ static int proc_scsi_write_proc(struct file *file, const char __user *buf, return ret; } +static ssize_t proc_scsi_host_write(struct file *file, const char __user *buf, + size_t count, loff_t *ppos) +{ + struct Scsi_Host *shost = PDE(file_inode(file))->data; + ssize_t ret = -ENOMEM; + char *page; + + if (count > PROC_BLOCK_SIZE) + return -EOVERFLOW; + + if (!shost->hostt->write_info) + return -EINVAL; + + page = (char *)__get_free_page(GFP_KERNEL); + if (page) { + ret = -EFAULT; + if (copy_from_user(page, buf, count)) + goto out; + ret = shost->hostt->write_info(shost, page, count); + } +out: + free_page((unsigned long)page); + return ret; +} + +static int proc_scsi_show(struct seq_file *m, void *v) +{ + struct Scsi_Host *shost = m->private; + return shost->hostt->show_info(m, shost); +} + +static int proc_scsi_host_open(struct inode *inode, struct file *file) +{ + return single_open(file, proc_scsi_show, PDE(inode)->data); +} + +static const struct file_operations proc_scsi_fops = { + .open = proc_scsi_host_open, + .read = seq_read, + .llseek = seq_lseek, + .write = proc_scsi_host_write +}; + /** * scsi_proc_hostdir_add - Create directory in /proc for a scsi host * @sht: owner of this directory @@ -106,7 +149,7 @@ static int proc_scsi_write_proc(struct file *file, const char __user *buf, void scsi_proc_hostdir_add(struct scsi_host_template *sht) { - if (!sht->proc_info) + if (!sht->proc_info && !sht->show_info) return; mutex_lock(&global_host_template_mutex); @@ -125,7 +168,7 @@ void scsi_proc_hostdir_add(struct scsi_host_template *sht) */ void scsi_proc_hostdir_rm(struct scsi_host_template *sht) { - if (!sht->proc_info) + if (!sht->proc_info && !sht->show_info) return; mutex_lock(&global_host_template_mutex); @@ -151,16 +194,23 @@ void scsi_proc_host_add(struct Scsi_Host *shost) return; sprintf(name,"%d", shost->host_no); + if (sht->show_info) { + p = proc_create_data(name, S_IRUGO | S_IWUSR, + sht->proc_dir, &proc_scsi_fops, shost); + if (!p) + goto Fail; + return; + } p = create_proc_read_entry(name, S_IFREG | S_IRUGO | S_IWUSR, sht->proc_dir, proc_scsi_read, shost); - if (!p) { - printk(KERN_ERR "%s: Failed to register host %d in" - "%s\n", __func__, shost->host_no, - sht->proc_name); + if (p) { + p->write_proc = proc_scsi_write_proc; return; - } - - p->write_proc = proc_scsi_write_proc; + } +Fail: + printk(KERN_ERR "%s: Failed to register host %d in" + "%s\n", __func__, shost->host_no, + sht->proc_name); } /** diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h index 2b6956e9853d..70e08e442bfc 100644 --- a/include/scsi/scsi_host.h +++ b/include/scsi/scsi_host.h @@ -6,6 +6,7 @@ #include #include #include +#include #include struct request_queue; @@ -341,6 +342,8 @@ struct scsi_host_template { * Status: OBSOLETE */ int (*proc_info)(struct Scsi_Host *, char *, char **, off_t, int, int); + int (*show_info)(struct seq_file *, struct Scsi_Host *); + int (*write_info)(struct Scsi_Host *, char *, int); /* * This is an optional routine that allows the transport to become @@ -375,7 +378,7 @@ struct scsi_host_template { /* * Used to store the procfs directory if a driver implements the - * proc_info method. + * proc_info or show_info method. */ struct proc_dir_entry *proc_dir; From ee127fec448bb066b549d516af5fe5a596b6ad6c Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 31 Mar 2013 00:10:16 -0400 Subject: [PATCH 057/204] sym53c8xx_2: switch to ->show_info() Signed-off-by: Al Viro --- drivers/scsi/sym53c8xx_2/sym_glue.c | 115 +++++----------------------- 1 file changed, 21 insertions(+), 94 deletions(-) diff --git a/drivers/scsi/sym53c8xx_2/sym_glue.c b/drivers/scsi/sym53c8xx_2/sym_glue.c index 599568299fbe..bac55f7f69f9 100644 --- a/drivers/scsi/sym53c8xx_2/sym_glue.c +++ b/drivers/scsi/sym53c8xx_2/sym_glue.c @@ -1171,112 +1171,36 @@ printk("sym_user_command: data=%ld\n", uc->data); #endif /* SYM_LINUX_USER_COMMAND_SUPPORT */ -#ifdef SYM_LINUX_USER_INFO_SUPPORT -/* - * Informations through the proc file system. - */ -struct info_str { - char *buffer; - int length; - int offset; - int pos; -}; - -static void copy_mem_info(struct info_str *info, char *data, int len) -{ - if (info->pos + len > info->length) - len = info->length - info->pos; - - if (info->pos + len < info->offset) { - info->pos += len; - return; - } - if (info->pos < info->offset) { - data += (info->offset - info->pos); - len -= (info->offset - info->pos); - } - - if (len > 0) { - memcpy(info->buffer + info->pos, data, len); - info->pos += len; - } -} - -static int copy_info(struct info_str *info, char *fmt, ...) -{ - va_list args; - char buf[81]; - int len; - - va_start(args, fmt); - len = vsprintf(buf, fmt, args); - va_end(args); - - copy_mem_info(info, buf, len); - return len; -} - /* * Copy formatted information into the input buffer. */ -static int sym_host_info(struct Scsi_Host *shost, char *ptr, off_t offset, int len) +static int sym_show_info(struct seq_file *m, struct Scsi_Host *shost) { +#ifdef SYM_LINUX_USER_INFO_SUPPORT struct sym_data *sym_data = shost_priv(shost); struct pci_dev *pdev = sym_data->pdev; struct sym_hcb *np = sym_data->ncb; - struct info_str info; - info.buffer = ptr; - info.length = len; - info.offset = offset; - info.pos = 0; - - copy_info(&info, "Chip " NAME53C "%s, device id 0x%x, " - "revision id 0x%x\n", np->s.chip_name, - pdev->device, pdev->revision); - copy_info(&info, "At PCI address %s, IRQ %u\n", + seq_printf(m, "Chip " NAME53C "%s, device id 0x%x, " + "revision id 0x%x\n", np->s.chip_name, + pdev->device, pdev->revision); + seq_printf(m, "At PCI address %s, IRQ %u\n", pci_name(pdev), pdev->irq); - copy_info(&info, "Min. period factor %d, %s SCSI BUS%s\n", - (int) (np->minsync_dt ? np->minsync_dt : np->minsync), - np->maxwide ? "Wide" : "Narrow", - np->minsync_dt ? ", DT capable" : ""); + seq_printf(m, "Min. period factor %d, %s SCSI BUS%s\n", + (int) (np->minsync_dt ? np->minsync_dt : np->minsync), + np->maxwide ? "Wide" : "Narrow", + np->minsync_dt ? ", DT capable" : ""); - copy_info(&info, "Max. started commands %d, " - "max. commands per LUN %d\n", - SYM_CONF_MAX_START, SYM_CONF_MAX_TAG); + seq_printf(m, "Max. started commands %d, " + "max. commands per LUN %d\n", + SYM_CONF_MAX_START, SYM_CONF_MAX_TAG); - return info.pos > info.offset? info.pos - info.offset : 0; -} + return 0; +#else + return -EINVAL; #endif /* SYM_LINUX_USER_INFO_SUPPORT */ - -/* - * Entry point of the scsi proc fs of the driver. - * - func = 0 means read (returns adapter infos) - * - func = 1 means write (not yet merget from sym53c8xx) - */ -static int sym53c8xx_proc_info(struct Scsi_Host *shost, char *buffer, - char **start, off_t offset, int length, int func) -{ - int retv; - - if (func) { -#ifdef SYM_LINUX_USER_COMMAND_SUPPORT - retv = sym_user_command(shost, buffer, length); -#else - retv = -EINVAL; -#endif - } else { - if (start) - *start = buffer; -#ifdef SYM_LINUX_USER_INFO_SUPPORT - retv = sym_host_info(shost, buffer, offset, length); -#else - retv = -EINVAL; -#endif - } - - return retv; } + #endif /* SYM_LINUX_PROC_INFO_SUPPORT */ /* @@ -1742,7 +1666,10 @@ static struct scsi_host_template sym2_template = { .use_clustering = ENABLE_CLUSTERING, .max_sectors = 0xFFFF, #ifdef SYM_LINUX_PROC_INFO_SUPPORT - .proc_info = sym53c8xx_proc_info, + .show_info = sym_show_info, +#ifdef SYM_LINUX_USER_COMMAND_SUPPORT + .write_info = sym_user_command, +#endif .proc_name = NAME53C8XX, #endif }; From cab29b99dfaa6065e3b576e54d7f6cfa60fa2faf Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 31 Mar 2013 00:17:00 -0400 Subject: [PATCH 058/204] wd7000: switch to ->show_info() Signed-off-by: Al Viro --- drivers/scsi/wd7000.c | 31 ++++++++----------------------- 1 file changed, 8 insertions(+), 23 deletions(-) diff --git a/drivers/scsi/wd7000.c b/drivers/scsi/wd7000.c index d89a5dfd3ade..f9a6e4b0affe 100644 --- a/drivers/scsi/wd7000.c +++ b/drivers/scsi/wd7000.c @@ -1296,9 +1296,9 @@ static void wd7000_revision(Adapter * host) #undef SPRINTF -#define SPRINTF(args...) { if (pos < (buffer + length)) pos += sprintf (pos, ## args); } +#define SPRINTF(args...) { seq_printf(m, ## args); } -static int wd7000_set_info(char *buffer, int length, struct Scsi_Host *host) +static int wd7000_set_info(struct Scsi_Host *host, char *buffer, int length) { dprintk("Buffer = <%.*s>, length = %d\n", length, buffer, length); @@ -1310,22 +1310,15 @@ static int wd7000_set_info(char *buffer, int length, struct Scsi_Host *host) } -static int wd7000_proc_info(struct Scsi_Host *host, char *buffer, char **start, off_t offset, int length, int inout) +static int wd7000_show_info(struct seq_file *m, struct Scsi_Host *host) { Adapter *adapter = (Adapter *)host->hostdata; unsigned long flags; - char *pos = buffer; #ifdef WD7000_DEBUG Mailbox *ogmbs, *icmbs; short count; #endif - /* - * Has data been written to the file ? - */ - if (inout) - return (wd7000_set_info(buffer, length, host)); - spin_lock_irqsave(host->host_lock, flags); SPRINTF("Host scsi%d: Western Digital WD-7000 (rev %d.%d)\n", host->host_no, adapter->rev1, adapter->rev2); SPRINTF(" IO base: 0x%x\n", adapter->iobase); @@ -1368,17 +1361,7 @@ static int wd7000_proc_info(struct Scsi_Host *host, char *buffer, char **start, spin_unlock_irqrestore(host->host_lock, flags); - /* - * Calculate start of next buffer, and return value. - */ - *start = buffer + offset; - - if ((pos - buffer) < offset) - return (0); - else if ((pos - buffer - offset) < length) - return (pos - buffer - offset); - else - return (length); + return 0; } @@ -1413,7 +1396,8 @@ static __init int wd7000_detect(struct scsi_host_template *tpnt) for (i = 0; i < NUM_CONFIGS; biosptr[i++] = -1); tpnt->proc_name = "wd7000"; - tpnt->proc_info = &wd7000_proc_info; + tpnt->show_info = &wd7000_show_info; + tpnt->write_info = wd7000_set_info; /* * Set up SCB free list, which is shared by all adapters @@ -1658,7 +1642,8 @@ MODULE_LICENSE("GPL"); static struct scsi_host_template driver_template = { .proc_name = "wd7000", - .proc_info = wd7000_proc_info, + .show_info = wd7000_show_info, + .write_info = wd7000_set_info, .name = "Western Digital WD-7000", .detect = wd7000_detect, .release = wd7000_release, From 408bb25ba50c6abaf516d844fd62556ec89a0af2 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 31 Mar 2013 00:30:35 -0400 Subject: [PATCH 059/204] switch wd33c93 to ->show_info() Signed-off-by: Al Viro --- drivers/scsi/a2091.c | 3 +- drivers/scsi/a3000.c | 3 +- drivers/scsi/gvp11.c | 3 +- drivers/scsi/mvme147.c | 3 +- drivers/scsi/wd33c93.c | 194 ++++++++++++++++++----------------------- drivers/scsi/wd33c93.h | 3 +- 6 files changed, 94 insertions(+), 115 deletions(-) diff --git a/drivers/scsi/a2091.c b/drivers/scsi/a2091.c index 3e09aa21c1ca..30fa38a0ad39 100644 --- a/drivers/scsi/a2091.c +++ b/drivers/scsi/a2091.c @@ -166,7 +166,8 @@ static int a2091_bus_reset(struct scsi_cmnd *cmd) static struct scsi_host_template a2091_scsi_template = { .module = THIS_MODULE, .name = "Commodore A2091/A590 SCSI", - .proc_info = wd33c93_proc_info, + .show_info = wd33c93_show_info, + .write_info = wd33c93_write_info, .proc_name = "A2901", .queuecommand = wd33c93_queuecommand, .eh_abort_handler = wd33c93_abort, diff --git a/drivers/scsi/a3000.c b/drivers/scsi/a3000.c index e29fe0e708f8..c487916a9d45 100644 --- a/drivers/scsi/a3000.c +++ b/drivers/scsi/a3000.c @@ -181,7 +181,8 @@ static int a3000_bus_reset(struct scsi_cmnd *cmd) static struct scsi_host_template amiga_a3000_scsi_template = { .module = THIS_MODULE, .name = "Amiga 3000 built-in SCSI", - .proc_info = wd33c93_proc_info, + .show_info = wd33c93_show_info, + .write_info = wd33c93_write_info, .proc_name = "A3000", .queuecommand = wd33c93_queuecommand, .eh_abort_handler = wd33c93_abort, diff --git a/drivers/scsi/gvp11.c b/drivers/scsi/gvp11.c index dbe4cc6b9f8b..2203ac281103 100644 --- a/drivers/scsi/gvp11.c +++ b/drivers/scsi/gvp11.c @@ -191,7 +191,8 @@ static int gvp11_bus_reset(struct scsi_cmnd *cmd) static struct scsi_host_template gvp11_scsi_template = { .module = THIS_MODULE, .name = "GVP Series II SCSI", - .proc_info = wd33c93_proc_info, + .show_info = wd33c93_show_info, + .write_info = wd33c93_write_info, .proc_name = "GVP11", .queuecommand = wd33c93_queuecommand, .eh_abort_handler = wd33c93_abort, diff --git a/drivers/scsi/mvme147.c b/drivers/scsi/mvme147.c index c29d0dbb9660..e7f6661a8862 100644 --- a/drivers/scsi/mvme147.c +++ b/drivers/scsi/mvme147.c @@ -76,7 +76,8 @@ int mvme147_detect(struct scsi_host_template *tpnt) called++; tpnt->proc_name = "MVME147"; - tpnt->proc_info = &wd33c93_proc_info; + tpnt->show_info = wd33c93_show_info, + tpnt->write_info = wd33c93_write_info, instance = scsi_register(tpnt, sizeof(struct WD33C93_hostdata)); if (!instance) diff --git a/drivers/scsi/wd33c93.c b/drivers/scsi/wd33c93.c index c0ee4ea28a19..41883a87931d 100644 --- a/drivers/scsi/wd33c93.c +++ b/drivers/scsi/wd33c93.c @@ -2054,22 +2054,16 @@ wd33c93_init(struct Scsi_Host *instance, const wd33c93_regs regs, printk(" Version %s - %s\n", WD33C93_VERSION, WD33C93_DATE); } -int -wd33c93_proc_info(struct Scsi_Host *instance, char *buf, char **start, off_t off, int len, int in) +int wd33c93_write_info(struct Scsi_Host *instance, char *buf, int len) { - #ifdef PROC_INTERFACE - char *bp; - char tbuf[128]; struct WD33C93_hostdata *hd; - struct scsi_cmnd *cmd; int x; - static int stop = 0; hd = (struct WD33C93_hostdata *) instance->hostdata; -/* If 'in' is TRUE we need to _read_ the proc file. We accept the following +/* We accept the following * keywords (same format as command-line, but arguments are not optional): * debug * disconnect @@ -2083,145 +2077,124 @@ wd33c93_proc_info(struct Scsi_Host *instance, char *buf, char **start, off_t off * nosync */ - if (in) { - buf[len] = '\0'; - for (bp = buf; *bp; ) { - while (',' == *bp || ' ' == *bp) - ++bp; - if (!strncmp(bp, "debug:", 6)) { - hd->args = simple_strtoul(bp+6, &bp, 0) & DB_MASK; - } else if (!strncmp(bp, "disconnect:", 11)) { - x = simple_strtoul(bp+11, &bp, 0); - if (x < DIS_NEVER || x > DIS_ALWAYS) - x = DIS_ADAPTIVE; - hd->disconnect = x; - } else if (!strncmp(bp, "period:", 7)) { + buf[len] = '\0'; + for (bp = buf; *bp; ) { + while (',' == *bp || ' ' == *bp) + ++bp; + if (!strncmp(bp, "debug:", 6)) { + hd->args = simple_strtoul(bp+6, &bp, 0) & DB_MASK; + } else if (!strncmp(bp, "disconnect:", 11)) { + x = simple_strtoul(bp+11, &bp, 0); + if (x < DIS_NEVER || x > DIS_ALWAYS) + x = DIS_ADAPTIVE; + hd->disconnect = x; + } else if (!strncmp(bp, "period:", 7)) { + x = simple_strtoul(bp+7, &bp, 0); + hd->default_sx_per = + hd->sx_table[round_period((unsigned int) x, + hd->sx_table)].period_ns; + } else if (!strncmp(bp, "resync:", 7)) { + set_resync(hd, (int)simple_strtoul(bp+7, &bp, 0)); + } else if (!strncmp(bp, "proc:", 5)) { + hd->proc = simple_strtoul(bp+5, &bp, 0); + } else if (!strncmp(bp, "nodma:", 6)) { + hd->no_dma = simple_strtoul(bp+6, &bp, 0); + } else if (!strncmp(bp, "level2:", 7)) { + hd->level2 = simple_strtoul(bp+7, &bp, 0); + } else if (!strncmp(bp, "burst:", 6)) { + hd->dma_mode = + simple_strtol(bp+6, &bp, 0) ? CTRL_BURST:CTRL_DMA; + } else if (!strncmp(bp, "fast:", 5)) { + x = !!simple_strtol(bp+5, &bp, 0); + if (x != hd->fast) + set_resync(hd, 0xff); + hd->fast = x; + } else if (!strncmp(bp, "nosync:", 7)) { x = simple_strtoul(bp+7, &bp, 0); - hd->default_sx_per = - hd->sx_table[round_period((unsigned int) x, - hd->sx_table)].period_ns; - } else if (!strncmp(bp, "resync:", 7)) { - set_resync(hd, (int)simple_strtoul(bp+7, &bp, 0)); - } else if (!strncmp(bp, "proc:", 5)) { - hd->proc = simple_strtoul(bp+5, &bp, 0); - } else if (!strncmp(bp, "nodma:", 6)) { - hd->no_dma = simple_strtoul(bp+6, &bp, 0); - } else if (!strncmp(bp, "level2:", 7)) { - hd->level2 = simple_strtoul(bp+7, &bp, 0); - } else if (!strncmp(bp, "burst:", 6)) { - hd->dma_mode = - simple_strtol(bp+6, &bp, 0) ? CTRL_BURST:CTRL_DMA; - } else if (!strncmp(bp, "fast:", 5)) { - x = !!simple_strtol(bp+5, &bp, 0); - if (x != hd->fast) - set_resync(hd, 0xff); - hd->fast = x; - } else if (!strncmp(bp, "nosync:", 7)) { - x = simple_strtoul(bp+7, &bp, 0); - set_resync(hd, x ^ hd->no_sync); - hd->no_sync = x; - } else { - break; /* unknown keyword,syntax-error,... */ - } + set_resync(hd, x ^ hd->no_sync); + hd->no_sync = x; + } else { + break; /* unknown keyword,syntax-error,... */ } - return len; } + return len; +#else + return 0; +#endif +} + +int +wd33c93_show_info(struct seq_file *m, struct Scsi_Host *instance) +{ +#ifdef PROC_INTERFACE + struct WD33C93_hostdata *hd; + struct scsi_cmnd *cmd; + int x; + + hd = (struct WD33C93_hostdata *) instance->hostdata; spin_lock_irq(&hd->lock); - bp = buf; - *bp = '\0'; - if (hd->proc & PR_VERSION) { - sprintf(tbuf, "\nVersion %s - %s.", + if (hd->proc & PR_VERSION) + seq_printf(m, "\nVersion %s - %s.", WD33C93_VERSION, WD33C93_DATE); - strcat(bp, tbuf); - } + if (hd->proc & PR_INFO) { - sprintf(tbuf, "\nclock_freq=%02x no_sync=%02x no_dma=%d" + seq_printf(m, "\nclock_freq=%02x no_sync=%02x no_dma=%d" " dma_mode=%02x fast=%d", hd->clock_freq, hd->no_sync, hd->no_dma, hd->dma_mode, hd->fast); - strcat(bp, tbuf); - strcat(bp, "\nsync_xfer[] = "); - for (x = 0; x < 7; x++) { - sprintf(tbuf, "\t%02x", hd->sync_xfer[x]); - strcat(bp, tbuf); - } - strcat(bp, "\nsync_stat[] = "); - for (x = 0; x < 7; x++) { - sprintf(tbuf, "\t%02x", hd->sync_stat[x]); - strcat(bp, tbuf); - } + seq_printf(m, "\nsync_xfer[] = "); + for (x = 0; x < 7; x++) + seq_printf(m, "\t%02x", hd->sync_xfer[x]); + seq_printf(m, "\nsync_stat[] = "); + for (x = 0; x < 7; x++) + seq_printf(m, "\t%02x", hd->sync_stat[x]); } #ifdef PROC_STATISTICS if (hd->proc & PR_STATISTICS) { - strcat(bp, "\ncommands issued: "); - for (x = 0; x < 7; x++) { - sprintf(tbuf, "\t%ld", hd->cmd_cnt[x]); - strcat(bp, tbuf); - } - strcat(bp, "\ndisconnects allowed:"); - for (x = 0; x < 7; x++) { - sprintf(tbuf, "\t%ld", hd->disc_allowed_cnt[x]); - strcat(bp, tbuf); - } - strcat(bp, "\ndisconnects done: "); - for (x = 0; x < 7; x++) { - sprintf(tbuf, "\t%ld", hd->disc_done_cnt[x]); - strcat(bp, tbuf); - } - sprintf(tbuf, + seq_printf(m, "\ncommands issued: "); + for (x = 0; x < 7; x++) + seq_printf(m, "\t%ld", hd->cmd_cnt[x]); + seq_printf(m, "\ndisconnects allowed:"); + for (x = 0; x < 7; x++) + seq_printf(m, "\t%ld", hd->disc_allowed_cnt[x]); + seq_printf(m, "\ndisconnects done: "); + for (x = 0; x < 7; x++) + seq_printf(m, "\t%ld", hd->disc_done_cnt[x]); + seq_printf(m, "\ninterrupts: %ld, DATA_PHASE ints: %ld DMA, %ld PIO", hd->int_cnt, hd->dma_cnt, hd->pio_cnt); - strcat(bp, tbuf); } #endif if (hd->proc & PR_CONNECTED) { - strcat(bp, "\nconnected: "); + seq_printf(m, "\nconnected: "); if (hd->connected) { cmd = (struct scsi_cmnd *) hd->connected; - sprintf(tbuf, " %d:%d(%02x)", + seq_printf(m, " %d:%d(%02x)", cmd->device->id, cmd->device->lun, cmd->cmnd[0]); - strcat(bp, tbuf); } } if (hd->proc & PR_INPUTQ) { - strcat(bp, "\ninput_Q: "); + seq_printf(m, "\ninput_Q: "); cmd = (struct scsi_cmnd *) hd->input_Q; while (cmd) { - sprintf(tbuf, " %d:%d(%02x)", + seq_printf(m, " %d:%d(%02x)", cmd->device->id, cmd->device->lun, cmd->cmnd[0]); - strcat(bp, tbuf); cmd = (struct scsi_cmnd *) cmd->host_scribble; } } if (hd->proc & PR_DISCQ) { - strcat(bp, "\ndisconnected_Q:"); + seq_printf(m, "\ndisconnected_Q:"); cmd = (struct scsi_cmnd *) hd->disconnected_Q; while (cmd) { - sprintf(tbuf, " %d:%d(%02x)", + seq_printf(m, " %d:%d(%02x)", cmd->device->id, cmd->device->lun, cmd->cmnd[0]); - strcat(bp, tbuf); cmd = (struct scsi_cmnd *) cmd->host_scribble; } } - strcat(bp, "\n"); + seq_printf(m, "\n"); spin_unlock_irq(&hd->lock); - *start = buf; - if (stop) { - stop = 0; - return 0; - } - if (off > 0x40000) /* ALWAYS stop after 256k bytes have been read */ - stop = 1; - if (hd->proc & PR_STOP) /* stop every other time */ - stop = 1; - return strlen(bp); - -#else /* PROC_INTERFACE */ - - return 0; - #endif /* PROC_INTERFACE */ - + return 0; } EXPORT_SYMBOL(wd33c93_host_reset); @@ -2229,4 +2202,5 @@ EXPORT_SYMBOL(wd33c93_init); EXPORT_SYMBOL(wd33c93_abort); EXPORT_SYMBOL(wd33c93_queuecommand); EXPORT_SYMBOL(wd33c93_intr); -EXPORT_SYMBOL(wd33c93_proc_info); +EXPORT_SYMBOL(wd33c93_show_info); +EXPORT_SYMBOL(wd33c93_write_info); diff --git a/drivers/scsi/wd33c93.h b/drivers/scsi/wd33c93.h index 3b463d7304dc..08abe508e9ad 100644 --- a/drivers/scsi/wd33c93.h +++ b/drivers/scsi/wd33c93.h @@ -345,7 +345,8 @@ void wd33c93_init (struct Scsi_Host *instance, const wd33c93_regs regs, int wd33c93_abort (struct scsi_cmnd *cmd); int wd33c93_queuecommand (struct Scsi_Host *h, struct scsi_cmnd *cmd); void wd33c93_intr (struct Scsi_Host *instance); -int wd33c93_proc_info(struct Scsi_Host *, char *, char **, off_t, int, int); +int wd33c93_show_info(struct seq_file *, struct Scsi_Host *); +int wd33c93_write_info(struct Scsi_Host *, char *, int); int wd33c93_host_reset (struct scsi_cmnd *); #endif /* WD33C93_H */ From 3e0552eebdf621504eaec7786613ef94a63463a0 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 31 Mar 2013 00:52:08 -0400 Subject: [PATCH 060/204] gdth: switch to ->show_info() Signed-off-by: Al Viro --- drivers/scsi/gdth.c | 3 +- drivers/scsi/gdth.h | 3 +- drivers/scsi/gdth_proc.c | 211 +++++++++------------------------------ drivers/scsi/gdth_proc.h | 5 - 4 files changed, 52 insertions(+), 170 deletions(-) diff --git a/drivers/scsi/gdth.c b/drivers/scsi/gdth.c index 59bceac51a4c..6d55b4e7e792 100644 --- a/drivers/scsi/gdth.c +++ b/drivers/scsi/gdth.c @@ -4676,7 +4676,8 @@ static struct scsi_host_template gdth_template = { .eh_bus_reset_handler = gdth_eh_bus_reset, .slave_configure = gdth_slave_configure, .bios_param = gdth_bios_param, - .proc_info = gdth_proc_info, + .show_info = gdth_show_info, + .write_info = gdth_set_info, .eh_timed_out = gdth_timed_out, .proc_name = "gdth", .can_queue = GDTH_MAXCMDS, diff --git a/drivers/scsi/gdth.h b/drivers/scsi/gdth.h index fbf6f0f4b0dd..3fd8b83ffbf9 100644 --- a/drivers/scsi/gdth.h +++ b/drivers/scsi/gdth.h @@ -1007,6 +1007,7 @@ typedef struct { /* function prototyping */ -int gdth_proc_info(struct Scsi_Host *, char *,char **,off_t,int,int); +int gdth_show_info(struct seq_file *, struct Scsi_Host *); +int gdth_set_info(struct Scsi_Host *, char *, int); #endif diff --git a/drivers/scsi/gdth_proc.c b/drivers/scsi/gdth_proc.c index 652754319a4b..9fb632684863 100644 --- a/drivers/scsi/gdth_proc.c +++ b/drivers/scsi/gdth_proc.c @@ -5,23 +5,9 @@ #include #include -int gdth_proc_info(struct Scsi_Host *host, char *buffer,char **start,off_t offset,int length, - int inout) +int gdth_set_info(struct Scsi_Host *host, char *buffer, int length) { gdth_ha_str *ha = shost_priv(host); - - TRACE2(("gdth_proc_info() length %d offs %d inout %d\n", - length,(int)offset,inout)); - - if (inout) - return(gdth_set_info(buffer,length,host,ha)); - else - return(gdth_get_info(buffer,start,offset,length,host,ha)); -} - -static int gdth_set_info(char *buffer,int length,struct Scsi_Host *host, - gdth_ha_str *ha) -{ int ret_val = -EINVAL; TRACE2(("gdth_set_info() ha %d\n",ha->hanum,)); @@ -149,12 +135,10 @@ static int gdth_set_asc_info(struct Scsi_Host *host, char *buffer, return(-EINVAL); } -static int gdth_get_info(char *buffer,char **start,off_t offset,int length, - struct Scsi_Host *host, gdth_ha_str *ha) +int gdth_show_info(struct seq_file *m, struct Scsi_Host *host) { - int size = 0,len = 0; + gdth_ha_str *ha = shost_priv(host); int hlen; - off_t begin = 0,pos = 0; int id, i, j, k, sec, flag; int no_mdrv = 0, drv_no, is_mirr; u32 cnt; @@ -189,8 +173,7 @@ static int gdth_get_info(char *buffer,char **start,off_t offset,int length, /* request is i.e. "cat /proc/scsi/gdth/0" */ /* format: %-15s\t%-10s\t%-15s\t%s */ /* driver parameters */ - size = sprintf(buffer+len,"Driver Parameters:\n"); - len += size; pos = begin + len; + seq_printf(m, "Driver Parameters:\n"); if (reserve_list[0] == 0xff) strcpy(hrec, "--"); else { @@ -201,69 +184,50 @@ static int gdth_get_info(char *buffer,char **start,off_t offset,int length, hlen += snprintf(hrec + hlen , 161 - hlen, ",%d", reserve_list[i]); } } - size = sprintf(buffer+len, + seq_printf(m, " reserve_mode: \t%d \treserve_list: \t%s\n", reserve_mode, hrec); - len += size; pos = begin + len; - size = sprintf(buffer+len, + seq_printf(m, " max_ids: \t%-3d \thdr_channel: \t%d\n", max_ids, hdr_channel); - len += size; pos = begin + len; /* controller information */ - size = sprintf(buffer+len,"\nDisk Array Controller Information:\n"); - len += size; pos = begin + len; - strcpy(hrec, ha->binfo.type_string); - size = sprintf(buffer+len, + seq_printf(m,"\nDisk Array Controller Information:\n"); + seq_printf(m, " Number: \t%d \tName: \t%s\n", - ha->hanum, hrec); - len += size; pos = begin + len; + ha->hanum, ha->binfo.type_string); + seq_printf(m, + " Driver Ver.: \t%-10s\tFirmware Ver.: \t", + GDTH_VERSION_STR); if (ha->more_proc) - sprintf(hrec, "%d.%02d.%02d-%c%03X", + seq_printf(m, "%d.%02d.%02d-%c%03X\n", (u8)(ha->binfo.upd_fw_ver>>24), (u8)(ha->binfo.upd_fw_ver>>16), (u8)(ha->binfo.upd_fw_ver), ha->bfeat.raid ? 'R':'N', ha->binfo.upd_revision); else - sprintf(hrec, "%d.%02d", (u8)(ha->cpar.version>>8), + seq_printf(m, "%d.%02d\n", (u8)(ha->cpar.version>>8), (u8)(ha->cpar.version)); - - size = sprintf(buffer+len, - " Driver Ver.: \t%-10s\tFirmware Ver.: \t%s\n", - GDTH_VERSION_STR, hrec); - len += size; pos = begin + len; - if (ha->more_proc) { + if (ha->more_proc) /* more information: 1. about controller */ - size = sprintf(buffer+len, + seq_printf(m, " Serial No.: \t0x%8X\tCache RAM size:\t%d KB\n", ha->binfo.ser_no, ha->binfo.memsize / 1024); - len += size; pos = begin + len; - } #ifdef GDTH_DMA_STATISTICS /* controller statistics */ - size = sprintf(buffer+len,"\nController Statistics:\n"); - len += size; pos = begin + len; - size = sprintf(buffer+len, + seq_printf(m,"\nController Statistics:\n"); + seq_printf(m, " 32-bit DMA buffer:\t%lu\t64-bit DMA buffer:\t%lu\n", ha->dma32_cnt, ha->dma64_cnt); - len += size; pos = begin + len; #endif - if (pos < offset) { - len = 0; - begin = pos; - } - if (pos > offset + length) - goto stop_output; - if (ha->more_proc) { /* more information: 2. about physical devices */ - size = sprintf(buffer+len,"\nPhysical Devices:"); - len += size; pos = begin + len; + seq_printf(m, "\nPhysical Devices:"); flag = FALSE; buf = gdth_ioctl_alloc(ha, GDTH_SCRATCH, FALSE, &paddr); @@ -309,21 +273,19 @@ static int gdth_get_info(char *buffer,char **start,off_t offset,int length, strncpy(hrec+8,pdi->product,16); strncpy(hrec+24,pdi->revision,4); hrec[28] = 0; - size = sprintf(buffer+len, + seq_printf(m, "\n Chn/ID/LUN: \t%c/%02d/%d \tName: \t%s\n", 'A'+i,pdi->target_id,pdi->lun,hrec); - len += size; pos = begin + len; flag = TRUE; pdi->no_ldrive &= 0xffff; if (pdi->no_ldrive == 0xffff) strcpy(hrec,"--"); else sprintf(hrec,"%d",pdi->no_ldrive); - size = sprintf(buffer+len, + seq_printf(m, " Capacity [MB]:\t%-6d \tTo Log. Drive: \t%s\n", pdi->blkcnt/(1024*1024/pdi->blksize), hrec); - len += size; pos = begin + len; } else { pdi->devtype = 0xff; } @@ -333,11 +295,10 @@ static int gdth_get_info(char *buffer,char **start,off_t offset,int length, for (k = 0; k < pds->count; ++k) { if (pds->list[k].tid == pdi->target_id && pds->list[k].lun == pdi->lun) { - size = sprintf(buffer+len, + seq_printf(m, " Retries: \t%-6d \tReassigns: \t%d\n", pds->list[k].retries, pds->list[k].reassigns); - len += size; pos = begin + len; break; } } @@ -355,32 +316,20 @@ static int gdth_get_info(char *buffer,char **start,off_t offset,int length, pdef->sddc_type = 0x08; if (gdth_execute(host, gdtcmd, cmnd, 30, NULL) == S_OK) { - size = sprintf(buffer+len, + seq_printf(m, " Grown Defects:\t%d\n", pdef->sddc_cnt); - len += size; pos = begin + len; } } - if (pos < offset) { - len = 0; - begin = pos; - } - if (pos > offset + length) { - gdth_ioctl_free(ha, GDTH_SCRATCH, buf, paddr); - goto stop_output; - } } } gdth_ioctl_free(ha, GDTH_SCRATCH, buf, paddr); - if (!flag) { - size = sprintf(buffer+len, "\n --\n"); - len += size; pos = begin + len; - } + if (!flag) + seq_printf(m, "\n --\n"); /* 3. about logical drives */ - size = sprintf(buffer+len,"\nLogical Drives:"); - len += size; pos = begin + len; + seq_printf(m,"\nLogical Drives:"); flag = FALSE; buf = gdth_ioctl_alloc(ha, GDTH_SCRATCH, FALSE, &paddr); @@ -418,10 +367,9 @@ static int gdth_get_info(char *buffer,char **start,off_t offset,int length, } if (drv_no == i) { - size = sprintf(buffer+len, + seq_printf(m, "\n Number: \t%-2d \tStatus: \t%s\n", drv_no, hrec); - len += size; pos = begin + len; flag = TRUE; no_mdrv = pcdi->cd_ldcnt; if (no_mdrv > 1 || pcdi->ld_slave != -1) { @@ -436,61 +384,37 @@ static int gdth_get_info(char *buffer,char **start,off_t offset,int length, } else { strcpy(hrec, "???"); } - size = sprintf(buffer+len, + seq_printf(m, " Capacity [MB]:\t%-6d \tType: \t%s\n", pcdi->ld_blkcnt/(1024*1024/pcdi->ld_blksize), hrec); - len += size; pos = begin + len; } else { - size = sprintf(buffer+len, + seq_printf(m, " Slave Number: \t%-2d \tStatus: \t%s\n", drv_no & 0x7fff, hrec); - len += size; pos = begin + len; } drv_no = pcdi->ld_slave; - if (pos < offset) { - len = 0; - begin = pos; - } - if (pos > offset + length) { - gdth_ioctl_free(ha, GDTH_SCRATCH, buf, paddr); - goto stop_output; - } } while (drv_no != -1); - if (is_mirr) { - size = sprintf(buffer+len, + if (is_mirr) + seq_printf(m, " Missing Drv.: \t%-2d \tInvalid Drv.: \t%d\n", no_mdrv - j - k, k); - len += size; pos = begin + len; - } - + if (!ha->hdr[i].is_arraydrv) strcpy(hrec, "--"); else sprintf(hrec, "%d", ha->hdr[i].master_no); - size = sprintf(buffer+len, + seq_printf(m, " To Array Drv.:\t%s\n", hrec); - len += size; pos = begin + len; - if (pos < offset) { - len = 0; - begin = pos; - } - if (pos > offset + length) { - gdth_ioctl_free(ha, GDTH_SCRATCH, buf, paddr); - goto stop_output; - } } gdth_ioctl_free(ha, GDTH_SCRATCH, buf, paddr); - if (!flag) { - size = sprintf(buffer+len, "\n --\n"); - len += size; pos = begin + len; - } + if (!flag) + seq_printf(m, "\n --\n"); /* 4. about array drives */ - size = sprintf(buffer+len,"\nArray Drives:"); - len += size; pos = begin + len; + seq_printf(m,"\nArray Drives:"); flag = FALSE; buf = gdth_ioctl_alloc(ha, GDTH_SCRATCH, FALSE, &paddr); @@ -525,10 +449,9 @@ static int gdth_get_info(char *buffer,char **start,off_t offset,int length, strcat(hrec, "/expand"); else if (pai->ai_ext_state & 0x1) strcat(hrec, "/patch"); - size = sprintf(buffer+len, + seq_printf(m, "\n Number: \t%-2d \tStatus: \t%s\n", i,hrec); - len += size; pos = begin + len; flag = TRUE; if (pai->ai_type == 0) @@ -539,31 +462,19 @@ static int gdth_get_info(char *buffer,char **start,off_t offset,int length, strcpy(hrec, "RAID-5"); else strcpy(hrec, "RAID-10"); - size = sprintf(buffer+len, + seq_printf(m, " Capacity [MB]:\t%-6d \tType: \t%s\n", pai->ai_size/(1024*1024/pai->ai_secsize), hrec); - len += size; pos = begin + len; - if (pos < offset) { - len = 0; - begin = pos; - } - if (pos > offset + length) { - gdth_ioctl_free(ha, GDTH_SCRATCH, buf, paddr); - goto stop_output; - } } } gdth_ioctl_free(ha, GDTH_SCRATCH, buf, paddr); - if (!flag) { - size = sprintf(buffer+len, "\n --\n"); - len += size; pos = begin + len; - } + if (!flag) + seq_printf(m, "\n --\n"); /* 5. about host drives */ - size = sprintf(buffer+len,"\nHost Drives:"); - len += size; pos = begin + len; + seq_printf(m,"\nHost Drives:"); flag = FALSE; buf = gdth_ioctl_alloc(ha, sizeof(gdth_hget_str), FALSE, &paddr); @@ -605,33 +516,22 @@ static int gdth_get_info(char *buffer,char **start,off_t offset,int length, if (!(ha->hdr[i].present)) continue; - size = sprintf(buffer+len, + seq_printf(m, "\n Number: \t%-2d \tArr/Log. Drive:\t%d\n", i, ha->hdr[i].ldr_no); - len += size; pos = begin + len; flag = TRUE; - size = sprintf(buffer+len, + seq_printf(m, " Capacity [MB]:\t%-6d \tStart Sector: \t%d\n", (u32)(ha->hdr[i].size/2048), ha->hdr[i].start_sec); - len += size; pos = begin + len; - if (pos < offset) { - len = 0; - begin = pos; - } - if (pos > offset + length) - goto stop_output; } - if (!flag) { - size = sprintf(buffer+len, "\n --\n"); - len += size; pos = begin + len; - } + if (!flag) + seq_printf(m, "\n --\n"); } /* controller events */ - size = sprintf(buffer+len,"\nController Events:\n"); - len += size; pos = begin + len; + seq_printf(m,"\nController Events:\n"); for (id = -1;;) { id = gdth_read_event(ha, id, estr); @@ -643,29 +543,14 @@ static int gdth_get_info(char *buffer,char **start,off_t offset,int length, do_gettimeofday(&tv); sec = (int)(tv.tv_sec - estr->first_stamp); if (sec < 0) sec = 0; - size = sprintf(buffer+len," date- %02d:%02d:%02d\t%s\n", + seq_printf(m," date- %02d:%02d:%02d\t%s\n", sec/3600, sec%3600/60, sec%60, hrec); - len += size; pos = begin + len; - if (pos < offset) { - len = 0; - begin = pos; - } - if (pos > offset + length) - goto stop_output; } if (id == -1) break; } - stop_output: - *start = buffer +(offset-begin); - len -= (offset-begin); - if (len > length) - len = length; - TRACE2(("get_info() len %d pos %d begin %d offset %d length %d size %d\n", - len,(int)pos,(int)begin,(int)offset,length,size)); - rc = len; - + rc = 0; free_fail: kfree(gdtcmd); kfree(estr); diff --git a/drivers/scsi/gdth_proc.h b/drivers/scsi/gdth_proc.h index dab15f59f2cc..aaa618198972 100644 --- a/drivers/scsi/gdth_proc.h +++ b/drivers/scsi/gdth_proc.h @@ -8,11 +8,6 @@ int gdth_execute(struct Scsi_Host *shost, gdth_cmd_str *gdtcmd, char *cmnd, int timeout, u32 *info); -static int gdth_set_info(char *buffer,int length,struct Scsi_Host *host, - gdth_ha_str *ha); -static int gdth_get_info(char *buffer,char **start,off_t offset,int length, - struct Scsi_Host *host, gdth_ha_str *ha); - static int gdth_set_asc_info(struct Scsi_Host *host, char *buffer, int length, gdth_ha_str *ha); From fa5fd36820efdc82fc9ac8ac9bd47ddc2fee3d37 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 31 Mar 2013 00:55:40 -0400 Subject: [PATCH 061/204] imm: switch to ->show_info() Signed-off-by: Al Viro --- drivers/scsi/imm.c | 40 +++++++++++----------------------------- 1 file changed, 11 insertions(+), 29 deletions(-) diff --git a/drivers/scsi/imm.c b/drivers/scsi/imm.c index 26cd9d1d7571..89a8266560d0 100644 --- a/drivers/scsi/imm.c +++ b/drivers/scsi/imm.c @@ -121,45 +121,26 @@ static inline void imm_pb_release(imm_struct *dev) * testing... * Also gives a method to use a script to obtain optimum timings (TODO) */ -static inline int imm_proc_write(imm_struct *dev, char *buffer, int length) +static int imm_write_info(struct Scsi_Host *host, char *buffer, int length) { - unsigned long x; + imm_struct *dev = imm_dev(host); if ((length > 5) && (strncmp(buffer, "mode=", 5) == 0)) { - x = simple_strtoul(buffer + 5, NULL, 0); - dev->mode = x; + dev->mode = simple_strtoul(buffer + 5, NULL, 0); return length; } printk("imm /proc: invalid variable\n"); - return (-EINVAL); + return -EINVAL; } -static int imm_proc_info(struct Scsi_Host *host, char *buffer, char **start, - off_t offset, int length, int inout) +static int imm_show_info(struct seq_file *m, struct Scsi_Host *host) { imm_struct *dev = imm_dev(host); - int len = 0; - if (inout) - return imm_proc_write(dev, buffer, length); - - len += sprintf(buffer + len, "Version : %s\n", IMM_VERSION); - len += - sprintf(buffer + len, "Parport : %s\n", - dev->dev->port->name); - len += - sprintf(buffer + len, "Mode : %s\n", - IMM_MODE_STRING[dev->mode]); - - /* Request for beyond end of buffer */ - if (offset > len) - return 0; - - *start = buffer + offset; - len -= offset; - if (len > length) - len = length; - return len; + seq_printf(m, "Version : %s\n", IMM_VERSION); + seq_printf(m, "Parport : %s\n", dev->dev->port->name); + seq_printf(m, "Mode : %s\n", IMM_MODE_STRING[dev->mode]); + return 0; } #if IMM_DEBUG > 0 @@ -1118,7 +1099,8 @@ static int imm_adjust_queue(struct scsi_device *device) static struct scsi_host_template imm_template = { .module = THIS_MODULE, .proc_name = "imm", - .proc_info = imm_proc_info, + .show_info = imm_show_info, + .write_info = imm_write_info, .name = "Iomega VPI2 (imm) interface", .queuecommand = imm_queuecommand, .eh_abort_handler = imm_abort, From b7654914bb8059a9817f32f4c4d0e7f75a08b78a Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 31 Mar 2013 00:58:31 -0400 Subject: [PATCH 062/204] ppa: switch to ->show_info() Signed-off-by: Al Viro --- drivers/scsi/ppa.c | 36 ++++++++++-------------------------- 1 file changed, 10 insertions(+), 26 deletions(-) diff --git a/drivers/scsi/ppa.c b/drivers/scsi/ppa.c index d164c9639361..1db8b26063b4 100644 --- a/drivers/scsi/ppa.c +++ b/drivers/scsi/ppa.c @@ -118,8 +118,9 @@ static inline void ppa_pb_release(ppa_struct *dev) * Also gives a method to use a script to obtain optimum timings (TODO) */ -static inline int ppa_proc_write(ppa_struct *dev, char *buffer, int length) +static inline int ppa_write_info(struct Scsi_Host *host, char *buffer, int length) { + ppa_struct *dev = ppa_dev(host); unsigned long x; if ((length > 5) && (strncmp(buffer, "mode=", 5) == 0)) { @@ -137,35 +138,17 @@ static inline int ppa_proc_write(ppa_struct *dev, char *buffer, int length) return -EINVAL; } -static int ppa_proc_info(struct Scsi_Host *host, char *buffer, char **start, off_t offset, int length, int inout) +static int ppa_show_info(struct seq_file *m, struct Scsi_Host *host) { - int len = 0; ppa_struct *dev = ppa_dev(host); - if (inout) - return ppa_proc_write(dev, buffer, length); - - len += sprintf(buffer + len, "Version : %s\n", PPA_VERSION); - len += - sprintf(buffer + len, "Parport : %s\n", - dev->dev->port->name); - len += - sprintf(buffer + len, "Mode : %s\n", - PPA_MODE_STRING[dev->mode]); + seq_printf(m, "Version : %s\n", PPA_VERSION); + seq_printf(m, "Parport : %s\n", dev->dev->port->name); + seq_printf(m, "Mode : %s\n", PPA_MODE_STRING[dev->mode]); #if PPA_DEBUG > 0 - len += - sprintf(buffer + len, "recon_tmo : %lu\n", dev->recon_tmo); + seq_printf(m, "recon_tmo : %lu\n", dev->recon_tmo); #endif - - /* Request for beyond end of buffer */ - if (offset > length) - return 0; - - *start = buffer + offset; - len -= offset; - if (len > length) - len = length; - return len; + return 0; } static int device_check(ppa_struct *dev); @@ -981,7 +964,8 @@ static int ppa_adjust_queue(struct scsi_device *device) static struct scsi_host_template ppa_template = { .module = THIS_MODULE, .proc_name = "ppa", - .proc_info = ppa_proc_info, + .show_info = ppa_show_info, + .write_info = ppa_write_info, .name = "Iomega VPI0 (ppa) interface", .queuecommand = ppa_queuecommand, .eh_abort_handler = ppa_abort, From dd7ab71bb3b4dad7fa1c4fd89706d6870991cfe6 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 31 Mar 2013 01:15:54 -0400 Subject: [PATCH 063/204] NCR5830: switch to ->show_info() Signed-off-by: Al Viro --- drivers/scsi/NCR5380.c | 71 +++++++++++++++++-------------------- drivers/scsi/NCR5380.h | 6 ++-- drivers/scsi/arm/cumana_1.c | 1 - drivers/scsi/arm/oak.c | 6 ++-- drivers/scsi/dtc.c | 3 +- drivers/scsi/dtc.h | 3 +- drivers/scsi/g_NCR5380.c | 51 +++++++++++--------------- drivers/scsi/mac_scsi.c | 3 +- drivers/scsi/mac_scsi.h | 3 +- drivers/scsi/pas16.c | 3 +- drivers/scsi/pas16.h | 3 +- drivers/scsi/t128.c | 3 +- drivers/scsi/t128.h | 3 +- 13 files changed, 76 insertions(+), 83 deletions(-) diff --git a/drivers/scsi/NCR5380.c b/drivers/scsi/NCR5380.c index 450353e04dde..1e9d6ad9302b 100644 --- a/drivers/scsi/NCR5380.c +++ b/drivers/scsi/NCR5380.c @@ -695,33 +695,35 @@ static void NCR5380_print_status(struct Scsi_Host *instance) * Return the number of bytes read from or written */ -#undef SPRINTF -#define SPRINTF(args...) do { if(pos < buffer + length-80) pos += sprintf(pos, ## args); } while(0) -static -char *lprint_Scsi_Cmnd(Scsi_Cmnd * cmd, char *pos, char *buffer, int length); -static -char *lprint_command(unsigned char *cmd, char *pos, char *buffer, int len); -static -char *lprint_opcode(int opcode, char *pos, char *buffer, int length); - -static int __maybe_unused NCR5380_proc_info(struct Scsi_Host *instance, - char *buffer, char **start, off_t offset, int length, int inout) +static int __maybe_unused NCR5380_write_info(struct Scsi_Host *instance, + char *buffer, int length) +{ +#ifdef DTC_PUBLIC_RELEASE + dtc_wmaxi = dtc_maxi = 0; +#endif +#ifdef PAS16_PUBLIC_RELEASE + pas_wmaxi = pas_maxi = 0; +#endif + return (-ENOSYS); /* Currently this is a no-op */ +} + +#undef SPRINTF +#define SPRINTF(args...) seq_printf(m, ## args) +static +void lprint_Scsi_Cmnd(Scsi_Cmnd * cmd, struct seq_file *m); +static +void lprint_command(unsigned char *cmd, struct seq_file *m); +static +void lprint_opcode(int opcode, struct seq_file *m); + +static int __maybe_unused NCR5380_show_info(struct seq_file *m, + struct Scsi_Host *instance) { - char *pos = buffer; struct NCR5380_hostdata *hostdata; Scsi_Cmnd *ptr; hostdata = (struct NCR5380_hostdata *) instance->hostdata; - if (inout) { /* Has data been written to the file ? */ -#ifdef DTC_PUBLIC_RELEASE - dtc_wmaxi = dtc_maxi = 0; -#endif -#ifdef PAS16_PUBLIC_RELEASE - pas_wmaxi = pas_maxi = 0; -#endif - return (-ENOSYS); /* Currently this is a no-op */ - } SPRINTF("NCR5380 core release=%d. ", NCR5380_PUBLIC_RELEASE); if (((struct NCR5380_hostdata *) instance->hostdata)->flags & FLAG_NCR53C400) SPRINTF("ncr53c400 release=%d. ", NCR53C400_PUBLIC_RELEASE); @@ -755,46 +757,37 @@ static int __maybe_unused NCR5380_proc_info(struct Scsi_Host *instance, if (!hostdata->connected) SPRINTF("scsi%d: no currently connected command\n", instance->host_no); else - pos = lprint_Scsi_Cmnd((Scsi_Cmnd *) hostdata->connected, pos, buffer, length); + lprint_Scsi_Cmnd((Scsi_Cmnd *) hostdata->connected, m); SPRINTF("scsi%d: issue_queue\n", instance->host_no); for (ptr = (Scsi_Cmnd *) hostdata->issue_queue; ptr; ptr = (Scsi_Cmnd *) ptr->host_scribble) - pos = lprint_Scsi_Cmnd(ptr, pos, buffer, length); + lprint_Scsi_Cmnd(ptr, m); SPRINTF("scsi%d: disconnected_queue\n", instance->host_no); for (ptr = (Scsi_Cmnd *) hostdata->disconnected_queue; ptr; ptr = (Scsi_Cmnd *) ptr->host_scribble) - pos = lprint_Scsi_Cmnd(ptr, pos, buffer, length); + lprint_Scsi_Cmnd(ptr, m); spin_unlock_irq(instance->host_lock); - - *start = buffer; - if (pos - buffer < offset) - return 0; - else if (pos - buffer - offset < length) - return pos - buffer - offset; - return length; + return 0; } -static char *lprint_Scsi_Cmnd(Scsi_Cmnd * cmd, char *pos, char *buffer, int length) +static void lprint_Scsi_Cmnd(Scsi_Cmnd * cmd, struct seq_file *m) { SPRINTF("scsi%d : destination target %d, lun %d\n", cmd->device->host->host_no, cmd->device->id, cmd->device->lun); SPRINTF(" command = "); - pos = lprint_command(cmd->cmnd, pos, buffer, length); - return (pos); + lprint_command(cmd->cmnd, m); } -static char *lprint_command(unsigned char *command, char *pos, char *buffer, int length) +static void lprint_command(unsigned char *command, struct seq_file *m) { int i, s; - pos = lprint_opcode(command[0], pos, buffer, length); + lprint_opcode(command[0], m); for (i = 1, s = COMMAND_SIZE(command[0]); i < s; ++i) SPRINTF("%02x ", command[i]); SPRINTF("\n"); - return (pos); } -static char *lprint_opcode(int opcode, char *pos, char *buffer, int length) +static void lprint_opcode(int opcode, struct seq_file *m) { SPRINTF("%2d (0x%02x)", opcode, opcode); - return (pos); } diff --git a/drivers/scsi/NCR5380.h b/drivers/scsi/NCR5380.h index fd40a32b1f6f..14964d0a0e9d 100644 --- a/drivers/scsi/NCR5380.h +++ b/drivers/scsi/NCR5380.h @@ -314,8 +314,10 @@ static void NCR5380_print(struct Scsi_Host *instance); static int NCR5380_abort(Scsi_Cmnd * cmd); static int NCR5380_bus_reset(Scsi_Cmnd * cmd); static int NCR5380_queue_command(struct Scsi_Host *, struct scsi_cmnd *); -static int __maybe_unused NCR5380_proc_info(struct Scsi_Host *instance, - char *buffer, char **start, off_t offset, int length, int inout); +static int __maybe_unused NCR5380_show_info(struct seq_file *, + struct Scsi_Host *); +static int __maybe_unused NCR5380_write_info(struct Scsi_Host *instance, + char *buffer, int length); static void NCR5380_reselect(struct Scsi_Host *instance); static int NCR5380_select(struct Scsi_Host *instance, Scsi_Cmnd * cmd, int tag); diff --git a/drivers/scsi/arm/cumana_1.c b/drivers/scsi/arm/cumana_1.c index c93938b246d5..b679778376c5 100644 --- a/drivers/scsi/arm/cumana_1.c +++ b/drivers/scsi/arm/cumana_1.c @@ -30,7 +30,6 @@ #define NCR5380_write(reg, value) cumanascsi_write(_instance, reg, value) #define NCR5380_intr cumanascsi_intr #define NCR5380_queue_command cumanascsi_queue_command -#define NCR5380_proc_info cumanascsi_proc_info #define NCR5380_implementation_fields \ unsigned ctrl; \ diff --git a/drivers/scsi/arm/oak.c b/drivers/scsi/arm/oak.c index 48facdc18002..4266eef8aca1 100644 --- a/drivers/scsi/arm/oak.c +++ b/drivers/scsi/arm/oak.c @@ -31,7 +31,8 @@ #define NCR5380_write(reg, value) writeb(value, _base + ((reg) << 2)) #define NCR5380_intr oakscsi_intr #define NCR5380_queue_command oakscsi_queue_command -#define NCR5380_proc_info oakscsi_proc_info +#define NCR5380_show_info oakscsi_show_info +#define NCR5380_write_info oakscsi_write_info #define NCR5380_implementation_fields \ void __iomem *base @@ -115,7 +116,8 @@ printk("reading %p len %d\n", addr, len); static struct scsi_host_template oakscsi_template = { .module = THIS_MODULE, - .proc_info = oakscsi_proc_info, + .show_info = oakscsi_show_info, + .write_info = oakscsi_write_info, .name = "Oak 16-bit SCSI", .info = oakscsi_info, .queuecommand = oakscsi_queue_command, diff --git a/drivers/scsi/dtc.c b/drivers/scsi/dtc.c index 4b11bb04f5c4..d01f01604140 100644 --- a/drivers/scsi/dtc.c +++ b/drivers/scsi/dtc.c @@ -216,7 +216,8 @@ static int __init dtc_detect(struct scsi_host_template * tpnt) int sig, count; tpnt->proc_name = "dtc3x80"; - tpnt->proc_info = &dtc_proc_info; + tpnt->show_info = dtc_show_info; + tpnt->write_info = dtc_write_info; for (count = 0; current_override < NO_OVERRIDES; ++current_override) { addr = 0; diff --git a/drivers/scsi/dtc.h b/drivers/scsi/dtc.h index cdc621204b66..92d7cfc3f4fc 100644 --- a/drivers/scsi/dtc.h +++ b/drivers/scsi/dtc.h @@ -88,7 +88,8 @@ static int dtc_bus_reset(Scsi_Cmnd *); #define NCR5380_queue_command dtc_queue_command #define NCR5380_abort dtc_abort #define NCR5380_bus_reset dtc_bus_reset -#define NCR5380_proc_info dtc_proc_info +#define NCR5380_show_info dtc_show_info +#define NCR5380_write_info dtc_write_info /* 15 12 11 10 1001 1100 0000 0000 */ diff --git a/drivers/scsi/g_NCR5380.c b/drivers/scsi/g_NCR5380.c index 5041f925c191..5cec6c60ca22 100644 --- a/drivers/scsi/g_NCR5380.c +++ b/drivers/scsi/g_NCR5380.c @@ -745,42 +745,36 @@ static inline int NCR5380_pwrite(struct Scsi_Host *instance, unsigned char *src, #include "NCR5380.c" -#define PRINTP(x) len += sprintf(buffer+len, x) +#define PRINTP(x) seq_printf(m, x) #define ANDP , -static int sprint_opcode(char *buffer, int len, int opcode) +static void sprint_opcode(struct seq_file *m, int opcode) { - int start = len; PRINTP("0x%02x " ANDP opcode); - return len - start; } -static int sprint_command(char *buffer, int len, unsigned char *command) +static void sprint_command(struct seq_file *m, unsigned char *command) { - int i, s, start = len; - len += sprint_opcode(buffer, len, command[0]); + int i, s; + sprint_opcode(m, command[0]); for (i = 1, s = COMMAND_SIZE(command[0]); i < s; ++i) PRINTP("%02x " ANDP command[i]); PRINTP("\n"); - return len - start; } /** * sprintf_Scsi_Cmnd - print a scsi command - * @buffer: buffr to print into - * @len: buffer length + * @m: seq_fil to print into * @cmd: SCSI command block * * Print out the target and command data in hex */ -static int sprint_Scsi_Cmnd(char *buffer, int len, Scsi_Cmnd * cmd) +static void sprint_Scsi_Cmnd(struct seq_file *m, Scsi_Cmnd * cmd) { - int start = len; PRINTP("host number %d destination target %d, lun %d\n" ANDP cmd->device->host->host_no ANDP cmd->device->id ANDP cmd->device->lun); PRINTP(" command = "); - len += sprint_command(buffer, len, cmd->cmnd); - return len - start; + sprint_command(m, cmd->cmnd); } /** @@ -800,9 +794,8 @@ static int sprint_Scsi_Cmnd(char *buffer, int len, Scsi_Cmnd * cmd) * Locks: global cli/lock for queue walk */ -static int generic_NCR5380_proc_info(struct Scsi_Host *scsi_ptr, char *buffer, char **start, off_t offset, int length, int inout) +static int generic_NCR5380_show_info(struct seq_file *m, struct Scsi_Host *scsi_ptr) { - int len = 0; NCR5380_local_declare(); unsigned long flags; unsigned char status; @@ -853,16 +846,16 @@ static int generic_NCR5380_proc_info(struct Scsi_Host *scsi_ptr, char *buffer, c PRINTP(" T:%d %s " ANDP dev->id ANDP scsi_device_type(dev->type)); for (i = 0; i < 8; i++) if (dev->vendor[i] >= 0x20) - *(buffer + (len++)) = dev->vendor[i]; - *(buffer + (len++)) = ' '; + seq_putc(m, dev->vendor[i]); + seq_putc(m, ' '); for (i = 0; i < 16; i++) if (dev->model[i] >= 0x20) - *(buffer + (len++)) = dev->model[i]; - *(buffer + (len++)) = ' '; + seq_putc(m, dev->model[i]); + seq_putc(m, ' '); for (i = 0; i < 4; i++) if (dev->rev[i] >= 0x20) - *(buffer + (len++)) = dev->rev[i]; - *(buffer + (len++)) = ' '; + seq_putc(m, dev->rev[i]); + seq_putc(m, ' '); PRINTP("\n%10ld kb read in %5ld secs" ANDP br / 1024 ANDP tr); if (tr) @@ -886,32 +879,28 @@ static int generic_NCR5380_proc_info(struct Scsi_Host *scsi_ptr, char *buffer, c if (!hostdata->connected) { PRINTP("No currently connected command\n"); } else { - len += sprint_Scsi_Cmnd(buffer, len, (Scsi_Cmnd *) hostdata->connected); + sprint_Scsi_Cmnd(m, (Scsi_Cmnd *) hostdata->connected); } PRINTP("issue_queue\n"); for (ptr = (Scsi_Cmnd *) hostdata->issue_queue; ptr; ptr = (Scsi_Cmnd *) ptr->host_scribble) - len += sprint_Scsi_Cmnd(buffer, len, ptr); + sprint_Scsi_Cmnd(m, ptr); PRINTP("disconnected_queue\n"); for (ptr = (Scsi_Cmnd *) hostdata->disconnected_queue; ptr; ptr = (Scsi_Cmnd *) ptr->host_scribble) - len += sprint_Scsi_Cmnd(buffer, len, ptr); + sprint_Scsi_Cmnd(m, ptr); - *start = buffer + offset; - len -= offset; - if (len > length) - len = length; spin_unlock_irqrestore(scsi_ptr->host_lock, flags); - return len; + return 0; } #undef PRINTP #undef ANDP static struct scsi_host_template driver_template = { - .proc_info = generic_NCR5380_proc_info, + .show_info = generic_NCR5380_show_info, .name = "Generic NCR5380/NCR53C400 Scsi Driver", .detect = generic_NCR5380_detect, .release = generic_NCR5380_release_resources, diff --git a/drivers/scsi/mac_scsi.c b/drivers/scsi/mac_scsi.c index 24828b54773a..858075723c87 100644 --- a/drivers/scsi/mac_scsi.c +++ b/drivers/scsi/mac_scsi.c @@ -561,7 +561,8 @@ static int macscsi_pwrite (struct Scsi_Host *instance, static struct scsi_host_template driver_template = { .proc_name = "Mac5380", - .proc_info = macscsi_proc_info, + .show_info = macscsi_show_info, + .write_info = macscsi_write_info, .name = "Macintosh NCR5380 SCSI", .detect = macscsi_detect, .release = macscsi_release, diff --git a/drivers/scsi/mac_scsi.h b/drivers/scsi/mac_scsi.h index d26e331c6c12..7dc62fce1c4c 100644 --- a/drivers/scsi/mac_scsi.h +++ b/drivers/scsi/mac_scsi.h @@ -72,7 +72,8 @@ #define NCR5380_queue_command macscsi_queue_command #define NCR5380_abort macscsi_abort #define NCR5380_bus_reset macscsi_bus_reset -#define NCR5380_proc_info macscsi_proc_info +#define NCR5380_show_info macscsi_show_info +#define NCR5380_write_info macscsi_write_info #define BOARD_NORMAL 0 #define BOARD_NCR53C400 1 diff --git a/drivers/scsi/pas16.c b/drivers/scsi/pas16.c index 2f72c9807b12..62f1a6031765 100644 --- a/drivers/scsi/pas16.c +++ b/drivers/scsi/pas16.c @@ -388,7 +388,8 @@ int __init pas16_detect(struct scsi_host_template * tpnt) int count; tpnt->proc_name = "pas16"; - tpnt->proc_info = &pas16_proc_info; + tpnt->show_info = pas16_show_info; + tpnt->write_info = pas16_write_info; if (pas16_addr != 0) { overrides[0].io_port = pas16_addr; diff --git a/drivers/scsi/pas16.h b/drivers/scsi/pas16.h index a04281cace2e..3721342835e9 100644 --- a/drivers/scsi/pas16.h +++ b/drivers/scsi/pas16.h @@ -163,7 +163,8 @@ static int pas16_bus_reset(Scsi_Cmnd *); #define NCR5380_queue_command pas16_queue_command #define NCR5380_abort pas16_abort #define NCR5380_bus_reset pas16_bus_reset -#define NCR5380_proc_info pas16_proc_info +#define NCR5380_show_info pas16_show_info +#define NCR5380_write_info pas16_write_info /* 15 14 12 10 7 5 3 1101 0100 1010 1000 */ diff --git a/drivers/scsi/t128.c b/drivers/scsi/t128.c index d672d97fb84a..f1e4b4148c75 100644 --- a/drivers/scsi/t128.c +++ b/drivers/scsi/t128.c @@ -201,7 +201,8 @@ int __init t128_detect(struct scsi_host_template * tpnt){ int sig, count; tpnt->proc_name = "t128"; - tpnt->proc_info = &t128_proc_info; + tpnt->show_info = t128_show_info; + tpnt->write_info = t128_write_info; for (count = 0; current_override < NO_OVERRIDES; ++current_override) { base = 0; diff --git a/drivers/scsi/t128.h b/drivers/scsi/t128.h index ada1115079c9..1df82c28e56d 100644 --- a/drivers/scsi/t128.h +++ b/drivers/scsi/t128.h @@ -140,7 +140,8 @@ static int t128_bus_reset(struct scsi_cmnd *); #define NCR5380_queue_command t128_queue_command #define NCR5380_abort t128_abort #define NCR5380_bus_reset t128_bus_reset -#define NCR5380_proc_info t128_proc_info +#define NCR5380_show_info t128_show_info +#define NCR5380_write_info t128_write_info /* 15 14 12 10 7 5 3 1101 0100 1010 1000 */ From 09dae7fc57a010288875ef46a44e30d16cedd232 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 31 Mar 2013 01:37:13 -0400 Subject: [PATCH 064/204] usb-storage: switch to ->show_info() Signed-off-by: Al Viro --- drivers/usb/storage/scsiglue.c | 42 ++++++++++++---------------------- 1 file changed, 14 insertions(+), 28 deletions(-) diff --git a/drivers/usb/storage/scsiglue.c b/drivers/usb/storage/scsiglue.c index 92f35abee92d..615c66eaedeb 100644 --- a/drivers/usb/storage/scsiglue.c +++ b/drivers/usb/storage/scsiglue.c @@ -438,22 +438,21 @@ void usb_stor_report_bus_reset(struct us_data *us) * /proc/scsi/ functions ***********************************************************************/ +static int write_info(struct Scsi_Host *host, char *buffer, int length) +{ + /* if someone is sending us data, just throw it away */ + return length; +} + /* we use this macro to help us write into the buffer */ #undef SPRINTF -#define SPRINTF(args...) \ - do { if (pos < buffer+length) pos += sprintf(pos, ## args); } while (0) +#define SPRINTF(args...) seq_printf(m, ## args) -static int proc_info (struct Scsi_Host *host, char *buffer, - char **start, off_t offset, int length, int inout) +static int show_info (struct seq_file *m, struct Scsi_Host *host) { struct us_data *us = host_to_us(host); - char *pos = buffer; const char *string; - /* if someone is sending us data, just throw it away */ - if (inout) - return length; - /* print the controller name */ SPRINTF(" Host scsi%d: usb-storage\n", host->host_no); @@ -483,28 +482,14 @@ static int proc_info (struct Scsi_Host *host, char *buffer, SPRINTF(" Transport: %s\n", us->transport_name); /* show the device flags */ - if (pos < buffer + length) { - pos += sprintf(pos, " Quirks:"); + SPRINTF(" Quirks:"); #define US_FLAG(name, value) \ - if (us->fflags & value) pos += sprintf(pos, " " #name); + if (us->fflags & value) seq_printf(m, " " #name); US_DO_ALL_FLAGS #undef US_FLAG - - *(pos++) = '\n'; - } - - /* - * Calculate start of next buffer, and return value. - */ - *start = buffer + offset; - - if ((pos - buffer) < offset) - return (0); - else if ((pos - buffer - offset) < length) - return (pos - buffer - offset); - else - return (length); + seq_putc(m, '\n'); + return 0; } /*********************************************************************** @@ -549,7 +534,8 @@ struct scsi_host_template usb_stor_host_template = { /* basic userland interface stuff */ .name = "usb-storage", .proc_name = "usb-storage", - .proc_info = proc_info, + .show_info = show_info, + .write_info = write_info, .info = host_info, /* command interface -- queued only */ From cac197031ce274efff8a5abea811b9d69ae3d740 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 31 Mar 2013 01:42:38 -0400 Subject: [PATCH 065/204] fusion: switch to ->show_info() Signed-off-by: Al Viro --- drivers/message/fusion/mptfc.c | 2 +- drivers/message/fusion/mptsas.c | 2 +- drivers/message/fusion/mptscsih.c | 98 +++---------------------------- drivers/message/fusion/mptscsih.h | 2 +- drivers/message/fusion/mptspi.c | 2 +- 5 files changed, 11 insertions(+), 95 deletions(-) diff --git a/drivers/message/fusion/mptfc.c b/drivers/message/fusion/mptfc.c index c13cd9bc590b..fd75108c355e 100644 --- a/drivers/message/fusion/mptfc.c +++ b/drivers/message/fusion/mptfc.c @@ -109,7 +109,7 @@ static int mptfc_host_reset(struct scsi_cmnd *SCpnt); static struct scsi_host_template mptfc_driver_template = { .module = THIS_MODULE, .proc_name = "mptfc", - .proc_info = mptscsih_proc_info, + .show_info = mptscsih_show_info, .name = "MPT FC Host", .info = mptscsih_info, .queuecommand = mptfc_qcmd, diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c index fa43c391c8ed..ffee6f781e30 100644 --- a/drivers/message/fusion/mptsas.c +++ b/drivers/message/fusion/mptsas.c @@ -1977,7 +1977,7 @@ static enum blk_eh_timer_return mptsas_eh_timed_out(struct scsi_cmnd *sc) static struct scsi_host_template mptsas_driver_template = { .module = THIS_MODULE, .proc_name = "mptsas", - .proc_info = mptscsih_proc_info, + .show_info = mptscsih_show_info, .name = "MPT SAS Host", .info = mptscsih_info, .queuecommand = mptsas_qcmd, diff --git a/drivers/message/fusion/mptscsih.c b/drivers/message/fusion/mptscsih.c index 164afa71bba7..727819cc7034 100644 --- a/drivers/message/fusion/mptscsih.c +++ b/drivers/message/fusion/mptscsih.c @@ -1284,101 +1284,17 @@ mptscsih_info(struct Scsi_Host *SChost) return h->info_kbuf; } -struct info_str { - char *buffer; - int length; - int offset; - int pos; -}; - -static void -mptscsih_copy_mem_info(struct info_str *info, char *data, int len) -{ - if (info->pos + len > info->length) - len = info->length - info->pos; - - if (info->pos + len < info->offset) { - info->pos += len; - return; - } - - if (info->pos < info->offset) { - data += (info->offset - info->pos); - len -= (info->offset - info->pos); - } - - if (len > 0) { - memcpy(info->buffer + info->pos, data, len); - info->pos += len; - } -} - -static int -mptscsih_copy_info(struct info_str *info, char *fmt, ...) -{ - va_list args; - char buf[81]; - int len; - - va_start(args, fmt); - len = vsprintf(buf, fmt, args); - va_end(args); - - mptscsih_copy_mem_info(info, buf, len); - return len; -} - -static int -mptscsih_host_info(MPT_ADAPTER *ioc, char *pbuf, off_t offset, int len) -{ - struct info_str info; - - info.buffer = pbuf; - info.length = len; - info.offset = offset; - info.pos = 0; - - mptscsih_copy_info(&info, "%s: %s, ", ioc->name, ioc->prod_name); - mptscsih_copy_info(&info, "%s%08xh, ", MPT_FW_REV_MAGIC_ID_STRING, ioc->facts.FWVersion.Word); - mptscsih_copy_info(&info, "Ports=%d, ", ioc->facts.NumberOfPorts); - mptscsih_copy_info(&info, "MaxQ=%d\n", ioc->req_depth); - - return ((info.pos > info.offset) ? info.pos - info.offset : 0); -} - -/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ -/** - * mptscsih_proc_info - Return information about MPT adapter - * @host: scsi host struct - * @buffer: if write, user data; if read, buffer for user - * @start: returns the buffer address - * @offset: if write, 0; if read, the current offset into the buffer from - * the previous read. - * @length: if write, return length; - * @func: write = 1; read = 0 - * - * (linux scsi_host_template.info routine) - */ -int -mptscsih_proc_info(struct Scsi_Host *host, char *buffer, char **start, off_t offset, - int length, int func) +int mptscsih_show_info(struct seq_file *m, struct Scsi_Host *host) { MPT_SCSI_HOST *hd = shost_priv(host); MPT_ADAPTER *ioc = hd->ioc; - int size = 0; - if (func) { - /* - * write is not supported - */ - } else { - if (start) - *start = buffer; + seq_printf(m, "%s: %s, ", ioc->name, ioc->prod_name); + seq_printf(m, "%s%08xh, ", MPT_FW_REV_MAGIC_ID_STRING, ioc->facts.FWVersion.Word); + seq_printf(m, "Ports=%d, ", ioc->facts.NumberOfPorts); + seq_printf(m, "MaxQ=%d\n", ioc->req_depth); - size = mptscsih_host_info(ioc, buffer, offset, length); - } - - return size; + return 0; } /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ @@ -3348,7 +3264,7 @@ EXPORT_SYMBOL(mptscsih_shutdown); EXPORT_SYMBOL(mptscsih_suspend); EXPORT_SYMBOL(mptscsih_resume); #endif -EXPORT_SYMBOL(mptscsih_proc_info); +EXPORT_SYMBOL(mptscsih_show_info); EXPORT_SYMBOL(mptscsih_info); EXPORT_SYMBOL(mptscsih_qcmd); EXPORT_SYMBOL(mptscsih_slave_destroy); diff --git a/drivers/message/fusion/mptscsih.h b/drivers/message/fusion/mptscsih.h index 43e75ff39921..83f503162f7a 100644 --- a/drivers/message/fusion/mptscsih.h +++ b/drivers/message/fusion/mptscsih.h @@ -111,7 +111,7 @@ extern void mptscsih_shutdown(struct pci_dev *); extern int mptscsih_suspend(struct pci_dev *pdev, pm_message_t state); extern int mptscsih_resume(struct pci_dev *pdev); #endif -extern int mptscsih_proc_info(struct Scsi_Host *host, char *buffer, char **start, off_t offset, int length, int func); +extern int mptscsih_show_info(struct seq_file *, struct Scsi_Host *); extern const char * mptscsih_info(struct Scsi_Host *SChost); extern int mptscsih_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *)); extern int mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, diff --git a/drivers/message/fusion/mptspi.c b/drivers/message/fusion/mptspi.c index c3aabde2dc4f..5653e505f91f 100644 --- a/drivers/message/fusion/mptspi.c +++ b/drivers/message/fusion/mptspi.c @@ -831,7 +831,7 @@ static void mptspi_slave_destroy(struct scsi_device *sdev) static struct scsi_host_template mptspi_driver_template = { .module = THIS_MODULE, .proc_name = "mptspi", - .proc_info = mptscsih_proc_info, + .show_info = mptscsih_show_info, .name = "MPT SPI Host", .info = mptscsih_info, .queuecommand = mptspi_qcmd, From c8ed555aba11236ff973fa937f38d5af87bfb18e Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 31 Mar 2013 01:46:06 -0400 Subject: [PATCH 066/204] scsi_debug: switch to ->show_info() Signed-off-by: Al Viro --- drivers/scsi/scsi_debug.c | 53 ++++++++++++++++----------------------- 1 file changed, 21 insertions(+), 32 deletions(-) diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c index 5cda11c07c68..5add6f4e7928 100644 --- a/drivers/scsi/scsi_debug.c +++ b/drivers/scsi/scsi_debug.c @@ -2823,31 +2823,27 @@ static const char * scsi_debug_info(struct Scsi_Host * shp) /* scsi_debug_proc_info * Used if the driver currently has no own support for /proc/scsi */ -static int scsi_debug_proc_info(struct Scsi_Host *host, char *buffer, char **start, off_t offset, - int length, int inout) +static int scsi_debug_write_info(struct Scsi_Host *host, char *buffer, int length) { - int len, pos, begin; - int orig_length; + char arr[16]; + int opts; + int minLen = length > 15 ? 15 : length; - orig_length = length; + if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RAWIO)) + return -EACCES; + memcpy(arr, buffer, minLen); + arr[minLen] = '\0'; + if (1 != sscanf(arr, "%d", &opts)) + return -EINVAL; + scsi_debug_opts = opts; + if (scsi_debug_every_nth != 0) + scsi_debug_cmnd_count = 0; + return length; +} - if (inout == 1) { - char arr[16]; - int minLen = length > 15 ? 15 : length; - - if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RAWIO)) - return -EACCES; - memcpy(arr, buffer, minLen); - arr[minLen] = '\0'; - if (1 != sscanf(arr, "%d", &pos)) - return -EINVAL; - scsi_debug_opts = pos; - if (scsi_debug_every_nth != 0) - scsi_debug_cmnd_count = 0; - return length; - } - begin = 0; - pos = len = sprintf(buffer, "scsi_debug adapter driver, version " +static int scsi_debug_show_info(struct seq_file *m, struct Scsi_Host *host) +{ + seq_printf(m, "scsi_debug adapter driver, version " "%s [%s]\n" "num_tgts=%d, shared (ram) size=%d MB, opts=0x%x, " "every_nth=%d(curr:%d)\n" @@ -2862,15 +2858,7 @@ static int scsi_debug_proc_info(struct Scsi_Host *host, char *buffer, char **sta scsi_debug_sector_size, sdebug_cylinders_per, sdebug_heads, sdebug_sectors_per, num_aborts, num_dev_resets, num_bus_resets, num_host_resets, dix_reads, dix_writes, dif_errors); - if (pos < offset) { - len = 0; - begin = pos; - } - *start = buffer + (offset - begin); /* Start of wanted data */ - len -= (offset - begin); - if (len > length) - len = length; - return len; + return 0; } static ssize_t sdebug_delay_show(struct device_driver * ddp, char * buf) @@ -3957,7 +3945,8 @@ int scsi_debug_queuecommand_lck(struct scsi_cmnd *SCpnt, done_funct_t done) static DEF_SCSI_QCMD(scsi_debug_queuecommand) static struct scsi_host_template sdebug_driver_template = { - .proc_info = scsi_debug_proc_info, + .show_info = scsi_debug_show_info, + .write_info = scsi_debug_write_info, .proc_name = sdebug_proc_name, .name = "SCSI DEBUG", .info = scsi_debug_info, From 25daa96f2bf72901c3abe664e5b461f29bbf3282 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 31 Mar 2013 01:52:13 -0400 Subject: [PATCH 067/204] BusLogic: switch to ->show_info() Signed-off-by: Al Viro --- drivers/scsi/BusLogic.c | 83 +++++++++++++++++++---------------------- drivers/scsi/BusLogic.h | 1 - 2 files changed, 38 insertions(+), 46 deletions(-) diff --git a/drivers/scsi/BusLogic.c b/drivers/scsi/BusLogic.c index d7ca247efa35..344d87599cd2 100644 --- a/drivers/scsi/BusLogic.c +++ b/drivers/scsi/BusLogic.c @@ -3201,26 +3201,30 @@ static int BusLogic_BIOSDiskParameters(struct scsi_device *sdev, struct block_de BugLogic_ProcDirectoryInfo implements /proc/scsi/BusLogic/. */ -static int BusLogic_ProcDirectoryInfo(struct Scsi_Host *shost, char *ProcBuffer, char **StartPointer, off_t Offset, int BytesAvailable, int WriteFlag) +static int BusLogic_write_info(struct Scsi_Host *shost, char *ProcBuffer, int BytesAvailable) { struct BusLogic_HostAdapter *HostAdapter = (struct BusLogic_HostAdapter *) shost->hostdata; struct BusLogic_TargetStatistics *TargetStatistics; - int TargetID, Length; - char *Buffer; TargetStatistics = HostAdapter->TargetStatistics; - if (WriteFlag) { - HostAdapter->ExternalHostAdapterResets = 0; - HostAdapter->HostAdapterInternalErrors = 0; - memset(TargetStatistics, 0, BusLogic_MaxTargetDevices * sizeof(struct BusLogic_TargetStatistics)); - return 0; - } - Buffer = HostAdapter->MessageBuffer; - Length = HostAdapter->MessageBufferLength; - Length += sprintf(&Buffer[Length], "\n\ + HostAdapter->ExternalHostAdapterResets = 0; + HostAdapter->HostAdapterInternalErrors = 0; + memset(TargetStatistics, 0, BusLogic_MaxTargetDevices * sizeof(struct BusLogic_TargetStatistics)); + return 0; +} + +static int BusLogic_show_info(struct seq_file *m, struct Scsi_Host *shost) +{ + struct BusLogic_HostAdapter *HostAdapter = (struct BusLogic_HostAdapter *) shost->hostdata; + struct BusLogic_TargetStatistics *TargetStatistics; + int TargetID; + + TargetStatistics = HostAdapter->TargetStatistics; + seq_write(m, HostAdapter->MessageBuffer, HostAdapter->MessageBufferLength); + seq_printf(m, "\n\ Current Driver Queue Depth: %d\n\ Currently Allocated CCBs: %d\n", HostAdapter->DriverQueueDepth, HostAdapter->AllocatedCCBs); - Length += sprintf(&Buffer[Length], "\n\n\ + seq_printf(m, "\n\n\ DATA TRANSFER STATISTICS\n\ \n\ Target Tagged Queuing Queue Depth Active Attempted Completed\n\ @@ -3229,66 +3233,62 @@ Target Tagged Queuing Queue Depth Active Attempted Completed\n\ struct BusLogic_TargetFlags *TargetFlags = &HostAdapter->TargetFlags[TargetID]; if (!TargetFlags->TargetExists) continue; - Length += sprintf(&Buffer[Length], " %2d %s", TargetID, (TargetFlags->TaggedQueuingSupported ? (TargetFlags->TaggedQueuingActive ? " Active" : (HostAdapter->TaggedQueuingPermitted & (1 << TargetID) + seq_printf(m, " %2d %s", TargetID, (TargetFlags->TaggedQueuingSupported ? (TargetFlags->TaggedQueuingActive ? " Active" : (HostAdapter->TaggedQueuingPermitted & (1 << TargetID) ? " Permitted" : " Disabled")) : "Not Supported")); - Length += sprintf(&Buffer[Length], + seq_printf(m, " %3d %3u %9u %9u\n", HostAdapter->QueueDepth[TargetID], HostAdapter->ActiveCommands[TargetID], TargetStatistics[TargetID].CommandsAttempted, TargetStatistics[TargetID].CommandsCompleted); } - Length += sprintf(&Buffer[Length], "\n\ + seq_printf(m, "\n\ Target Read Commands Write Commands Total Bytes Read Total Bytes Written\n\ ====== ============= ============== =================== ===================\n"); for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) { struct BusLogic_TargetFlags *TargetFlags = &HostAdapter->TargetFlags[TargetID]; if (!TargetFlags->TargetExists) continue; - Length += sprintf(&Buffer[Length], " %2d %9u %9u", TargetID, TargetStatistics[TargetID].ReadCommands, TargetStatistics[TargetID].WriteCommands); + seq_printf(m, " %2d %9u %9u", TargetID, TargetStatistics[TargetID].ReadCommands, TargetStatistics[TargetID].WriteCommands); if (TargetStatistics[TargetID].TotalBytesRead.Billions > 0) - Length += sprintf(&Buffer[Length], " %9u%09u", TargetStatistics[TargetID].TotalBytesRead.Billions, TargetStatistics[TargetID].TotalBytesRead.Units); + seq_printf(m, " %9u%09u", TargetStatistics[TargetID].TotalBytesRead.Billions, TargetStatistics[TargetID].TotalBytesRead.Units); else - Length += sprintf(&Buffer[Length], " %9u", TargetStatistics[TargetID].TotalBytesRead.Units); + seq_printf(m, " %9u", TargetStatistics[TargetID].TotalBytesRead.Units); if (TargetStatistics[TargetID].TotalBytesWritten.Billions > 0) - Length += sprintf(&Buffer[Length], " %9u%09u\n", TargetStatistics[TargetID].TotalBytesWritten.Billions, TargetStatistics[TargetID].TotalBytesWritten.Units); + seq_printf(m, " %9u%09u\n", TargetStatistics[TargetID].TotalBytesWritten.Billions, TargetStatistics[TargetID].TotalBytesWritten.Units); else - Length += sprintf(&Buffer[Length], " %9u\n", TargetStatistics[TargetID].TotalBytesWritten.Units); + seq_printf(m, " %9u\n", TargetStatistics[TargetID].TotalBytesWritten.Units); } - Length += sprintf(&Buffer[Length], "\n\ + seq_printf(m, "\n\ Target Command 0-1KB 1-2KB 2-4KB 4-8KB 8-16KB\n\ ====== ======= ========= ========= ========= ========= =========\n"); for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) { struct BusLogic_TargetFlags *TargetFlags = &HostAdapter->TargetFlags[TargetID]; if (!TargetFlags->TargetExists) continue; - Length += - sprintf(&Buffer[Length], + seq_printf(m, " %2d Read %9u %9u %9u %9u %9u\n", TargetID, TargetStatistics[TargetID].ReadCommandSizeBuckets[0], TargetStatistics[TargetID].ReadCommandSizeBuckets[1], TargetStatistics[TargetID].ReadCommandSizeBuckets[2], TargetStatistics[TargetID].ReadCommandSizeBuckets[3], TargetStatistics[TargetID].ReadCommandSizeBuckets[4]); - Length += - sprintf(&Buffer[Length], + seq_printf(m, " %2d Write %9u %9u %9u %9u %9u\n", TargetID, TargetStatistics[TargetID].WriteCommandSizeBuckets[0], TargetStatistics[TargetID].WriteCommandSizeBuckets[1], TargetStatistics[TargetID].WriteCommandSizeBuckets[2], TargetStatistics[TargetID].WriteCommandSizeBuckets[3], TargetStatistics[TargetID].WriteCommandSizeBuckets[4]); } - Length += sprintf(&Buffer[Length], "\n\ + seq_printf(m, "\n\ Target Command 16-32KB 32-64KB 64-128KB 128-256KB 256KB+\n\ ====== ======= ========= ========= ========= ========= =========\n"); for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) { struct BusLogic_TargetFlags *TargetFlags = &HostAdapter->TargetFlags[TargetID]; if (!TargetFlags->TargetExists) continue; - Length += - sprintf(&Buffer[Length], + seq_printf(m, " %2d Read %9u %9u %9u %9u %9u\n", TargetID, TargetStatistics[TargetID].ReadCommandSizeBuckets[5], TargetStatistics[TargetID].ReadCommandSizeBuckets[6], TargetStatistics[TargetID].ReadCommandSizeBuckets[7], TargetStatistics[TargetID].ReadCommandSizeBuckets[8], TargetStatistics[TargetID].ReadCommandSizeBuckets[9]); - Length += - sprintf(&Buffer[Length], + seq_printf(m, " %2d Write %9u %9u %9u %9u %9u\n", TargetID, TargetStatistics[TargetID].WriteCommandSizeBuckets[5], TargetStatistics[TargetID].WriteCommandSizeBuckets[6], TargetStatistics[TargetID].WriteCommandSizeBuckets[7], TargetStatistics[TargetID].WriteCommandSizeBuckets[8], TargetStatistics[TargetID].WriteCommandSizeBuckets[9]); } - Length += sprintf(&Buffer[Length], "\n\n\ + seq_printf(m, "\n\n\ ERROR RECOVERY STATISTICS\n\ \n\ Command Aborts Bus Device Resets Host Adapter Resets\n\ @@ -3299,20 +3299,12 @@ Target Requested Completed Requested Completed Requested Completed\n\ struct BusLogic_TargetFlags *TargetFlags = &HostAdapter->TargetFlags[TargetID]; if (!TargetFlags->TargetExists) continue; - Length += sprintf(&Buffer[Length], "\ + seq_printf(m, "\ %2d %5d %5d %5d %5d %5d %5d %5d %5d %5d\n", TargetID, TargetStatistics[TargetID].CommandAbortsRequested, TargetStatistics[TargetID].CommandAbortsAttempted, TargetStatistics[TargetID].CommandAbortsCompleted, TargetStatistics[TargetID].BusDeviceResetsRequested, TargetStatistics[TargetID].BusDeviceResetsAttempted, TargetStatistics[TargetID].BusDeviceResetsCompleted, TargetStatistics[TargetID].HostAdapterResetsRequested, TargetStatistics[TargetID].HostAdapterResetsAttempted, TargetStatistics[TargetID].HostAdapterResetsCompleted); } - Length += sprintf(&Buffer[Length], "\nExternal Host Adapter Resets: %d\n", HostAdapter->ExternalHostAdapterResets); - Length += sprintf(&Buffer[Length], "Host Adapter Internal Errors: %d\n", HostAdapter->HostAdapterInternalErrors); - if (Length >= BusLogic_MessageBufferSize) - BusLogic_Error("Message Buffer length %d exceeds size %d\n", HostAdapter, Length, BusLogic_MessageBufferSize); - if ((Length -= Offset) <= 0) - return 0; - if (Length >= BytesAvailable) - Length = BytesAvailable; - memcpy(ProcBuffer, HostAdapter->MessageBuffer + Offset, Length); - *StartPointer = ProcBuffer; - return Length; + seq_printf(m, "\nExternal Host Adapter Resets: %d\n", HostAdapter->ExternalHostAdapterResets); + seq_printf(m, "Host Adapter Internal Errors: %d\n", HostAdapter->HostAdapterInternalErrors); + return 0; } @@ -3566,7 +3558,8 @@ static int __init BusLogic_ParseDriverOptions(char *OptionsString) static struct scsi_host_template Bus_Logic_template = { .module = THIS_MODULE, .proc_name = "BusLogic", - .proc_info = BusLogic_ProcDirectoryInfo, + .write_info = BusLogic_write_info, + .show_info = BusLogic_show_info, .name = "BusLogic", .info = BusLogic_DriverInfo, .queuecommand = BusLogic_QueueCommand, diff --git a/drivers/scsi/BusLogic.h b/drivers/scsi/BusLogic.h index 649fcb31f26d..6c6c13c3be1b 100644 --- a/drivers/scsi/BusLogic.h +++ b/drivers/scsi/BusLogic.h @@ -1321,7 +1321,6 @@ static inline void BusLogic_IncrementSizeBucket(BusLogic_CommandSizeBuckets_T Co static const char *BusLogic_DriverInfo(struct Scsi_Host *); static int BusLogic_QueueCommand(struct Scsi_Host *h, struct scsi_cmnd *); static int BusLogic_BIOSDiskParameters(struct scsi_device *, struct block_device *, sector_t, int *); -static int BusLogic_ProcDirectoryInfo(struct Scsi_Host *, char *, char **, off_t, int, int); static int BusLogic_SlaveConfigure(struct scsi_device *); static void BusLogic_QueueCompletedCCB(struct BusLogic_CCB *); static irqreturn_t BusLogic_InterruptHandler(int, void *); From e88b7bb002e8f53a02fcdf8aab9915ce1ec22940 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 31 Mar 2013 02:00:06 -0400 Subject: [PATCH 068/204] cciss: switch to ->show_info() Signed-off-by: Al Viro --- drivers/block/cciss_scsi.c | 98 ++++++++++++++++++-------------------- 1 file changed, 46 insertions(+), 52 deletions(-) diff --git a/drivers/block/cciss_scsi.c b/drivers/block/cciss_scsi.c index da3311129a0c..ecd845cd28d8 100644 --- a/drivers/block/cciss_scsi.c +++ b/drivers/block/cciss_scsi.c @@ -54,13 +54,11 @@ static CommandList_struct *cmd_special_alloc(ctlr_info_t *h); static void cmd_free(ctlr_info_t *h, CommandList_struct *c); static void cmd_special_free(ctlr_info_t *h, CommandList_struct *c); -static int cciss_scsi_proc_info( - struct Scsi_Host *sh, +static int cciss_scsi_write_info(struct Scsi_Host *sh, char *buffer, /* data buffer */ - char **start, /* where data in buffer starts */ - off_t offset, /* offset from start of imaginary file */ - int length, /* length of data in buffer */ - int func); /* 0 == read, 1 == write */ + int length); /* length of data in buffer */ +static int cciss_scsi_show_info(struct seq_file *m, + struct Scsi_Host *sh); static int cciss_scsi_queue_command (struct Scsi_Host *h, struct scsi_cmnd *cmd); @@ -82,7 +80,8 @@ static struct scsi_host_template cciss_driver_template = { .module = THIS_MODULE, .name = "cciss", .proc_name = "cciss", - .proc_info = cciss_scsi_proc_info, + .write_info = cciss_scsi_write_info, + .show_info = cciss_scsi_show_info, .queuecommand = cciss_scsi_queue_command, .this_id = 7, .cmd_per_lun = 1, @@ -1302,60 +1301,55 @@ cciss_scsi_user_command(ctlr_info_t *h, int hostno, char *buffer, int length) return length; } - static int -cciss_scsi_proc_info(struct Scsi_Host *sh, +cciss_scsi_write_info(struct Scsi_Host *sh, char *buffer, /* data buffer */ - char **start, /* where data in buffer starts */ - off_t offset, /* offset from start of imaginary file */ - int length, /* length of data in buffer */ - int func) /* 0 == read, 1 == write */ + int length) /* length of data in buffer */ { - - int buflen, datalen; - ctlr_info_t *h; - int i; - - h = (ctlr_info_t *) sh->hostdata[0]; + ctlr_info_t *h = (ctlr_info_t *) sh->hostdata[0]; if (h == NULL) /* This really shouldn't ever happen. */ return -EINVAL; - if (func == 0) { /* User is reading from /proc/scsi/ciss*?/?* */ - buflen = sprintf(buffer, "cciss%d: SCSI host: %d\n", - h->ctlr, sh->host_no); - - /* this information is needed by apps to know which cciss - device corresponds to which scsi host number without - having to open a scsi target device node. The device - information is not a duplicate of /proc/scsi/scsi because - the two may be out of sync due to scsi hotplug, rather - this info is for an app to be able to use to know how to - get them back in sync. */ - - for (i = 0; i < ccissscsi[h->ctlr].ndevices; i++) { - struct cciss_scsi_dev_t *sd = - &ccissscsi[h->ctlr].dev[i]; - buflen += sprintf(&buffer[buflen], "c%db%dt%dl%d %02d " - "0x%02x%02x%02x%02x%02x%02x%02x%02x\n", - sh->host_no, sd->bus, sd->target, sd->lun, - sd->devtype, - sd->scsi3addr[0], sd->scsi3addr[1], - sd->scsi3addr[2], sd->scsi3addr[3], - sd->scsi3addr[4], sd->scsi3addr[5], - sd->scsi3addr[6], sd->scsi3addr[7]); - } - datalen = buflen - offset; - if (datalen < 0) { /* they're reading past EOF. */ - datalen = 0; - *start = buffer+buflen; - } else - *start = buffer + offset; - return(datalen); - } else /* User is writing to /proc/scsi/cciss*?/?* ... */ - return cciss_scsi_user_command(h, sh->host_no, + return cciss_scsi_user_command(h, sh->host_no, buffer, length); } +static int +cciss_scsi_show_info(struct seq_file *m, struct Scsi_Host *sh) +{ + + ctlr_info_t *h = (ctlr_info_t *) sh->hostdata[0]; + int i; + + if (h == NULL) /* This really shouldn't ever happen. */ + return -EINVAL; + + seq_printf(m, "cciss%d: SCSI host: %d\n", + h->ctlr, sh->host_no); + + /* this information is needed by apps to know which cciss + device corresponds to which scsi host number without + having to open a scsi target device node. The device + information is not a duplicate of /proc/scsi/scsi because + the two may be out of sync due to scsi hotplug, rather + this info is for an app to be able to use to know how to + get them back in sync. */ + + for (i = 0; i < ccissscsi[h->ctlr].ndevices; i++) { + struct cciss_scsi_dev_t *sd = + &ccissscsi[h->ctlr].dev[i]; + seq_printf(m, "c%db%dt%dl%d %02d " + "0x%02x%02x%02x%02x%02x%02x%02x%02x\n", + sh->host_no, sd->bus, sd->target, sd->lun, + sd->devtype, + sd->scsi3addr[0], sd->scsi3addr[1], + sd->scsi3addr[2], sd->scsi3addr[3], + sd->scsi3addr[4], sd->scsi3addr[5], + sd->scsi3addr[6], sd->scsi3addr[7]); + } + return 0; +} + /* cciss_scatter_gather takes a struct scsi_cmnd, (cmd), and does the pci dma mapping and fills in the scatter gather entries of the cciss command, c. */ From 8946b077ca385a6f93b32d9a5aa6b5bb966b475d Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 31 Mar 2013 02:01:55 -0400 Subject: [PATCH 069/204] tcm: switch to ->show_info() Signed-off-by: Al Viro --- drivers/target/loopback/tcm_loop.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c index 2d444b1ccd33..7c908141cc8a 100644 --- a/drivers/target/loopback/tcm_loop.c +++ b/drivers/target/loopback/tcm_loop.c @@ -79,11 +79,10 @@ static void tcm_loop_release_cmd(struct se_cmd *se_cmd) kmem_cache_free(tcm_loop_cmd_cache, tl_cmd); } -static int tcm_loop_proc_info(struct Scsi_Host *host, char *buffer, - char **start, off_t offset, - int length, int inout) +static int tcm_loop_show_info(struct seq_file *m, struct Scsi_Host *host) { - return sprintf(buffer, "tcm_loop_proc_info()\n"); + seq_printf(m, "tcm_loop_proc_info()\n"); + return 0; } static int tcm_loop_driver_probe(struct device *); @@ -336,7 +335,7 @@ static int tcm_loop_slave_configure(struct scsi_device *sd) } static struct scsi_host_template tcm_loop_driver_template = { - .proc_info = tcm_loop_proc_info, + .show_info = tcm_loop_show_info, .proc_name = "tcm_loopback", .name = "TCM_Loopback", .queuecommand = tcm_loop_queuecommand, From 38c19ec9f7b28c8d5034daf28e4cc1b24e23ac49 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 31 Mar 2013 02:04:33 -0400 Subject: [PATCH 070/204] rts5139: switch to ->show_info() Signed-off-by: Al Viro --- drivers/staging/rts5139/rts51x_scsi.c | 30 ++++++++------------------- drivers/staging/rts5139/rts51x_scsi.h | 2 -- 2 files changed, 9 insertions(+), 23 deletions(-) diff --git a/drivers/staging/rts5139/rts51x_scsi.c b/drivers/staging/rts5139/rts51x_scsi.c index 052911c93103..2ac3fe647ee6 100644 --- a/drivers/staging/rts5139/rts51x_scsi.c +++ b/drivers/staging/rts5139/rts51x_scsi.c @@ -1968,18 +1968,16 @@ int slave_configure(struct scsi_device *sdev) /* we use this macro to help us write into the buffer */ #undef SPRINTF -#define SPRINTF(args...) \ - do { if (pos < buffer+length) pos += sprintf(pos, ## args); } while (0) +#define SPRINTF(args...) seq_printf(m, ##args) -int proc_info(struct Scsi_Host *host, char *buffer, - char **start, off_t offset, int length, int inout) +static int write_info(struct Scsi_Host *host, char *buffer, int length) { - char *pos = buffer; - /* if someone is sending us data, just throw it away */ - if (inout) - return length; + return length; +} +static int show_info(struct seq_file *m, struct Scsi_Host *host) +{ /* print the controller name */ SPRINTF(" Host scsi%d: %s\n", host->host_no, RTS51X_NAME); @@ -1988,18 +1986,7 @@ int proc_info(struct Scsi_Host *host, char *buffer, SPRINTF(" Product: RTS51xx USB Card Reader\n"); SPRINTF(" Version: %s\n", DRIVER_VERSION); SPRINTF(" Build: %s\n", __TIME__); - - /* - * Calculate start of next buffer, and return value. - */ - *start = buffer + offset; - - if ((pos - buffer) < offset) - return 0; - else if ((pos - buffer - offset) < length) - return pos - buffer - offset; - else - return length; + return 0; } /* queue a command */ @@ -2100,7 +2087,8 @@ struct scsi_host_template rts51x_host_template = { /* basic userland interface stuff */ .name = RTS51X_NAME, .proc_name = RTS51X_NAME, - .proc_info = proc_info, + .show_info = show_info, + .write_info = write_info, .info = rts5139_info, /* command interface -- queued only */ diff --git a/drivers/staging/rts5139/rts51x_scsi.h b/drivers/staging/rts5139/rts51x_scsi.h index cdfe550371ce..c2446d02d328 100644 --- a/drivers/staging/rts5139/rts51x_scsi.h +++ b/drivers/staging/rts5139/rts51x_scsi.h @@ -147,8 +147,6 @@ struct scsi_cmnd; int slave_alloc(struct scsi_device *sdev); int slave_configure(struct scsi_device *sdev); -int proc_info(struct Scsi_Host *host, char *buffer, - char **start, off_t offset, int length, int inout); int queuecommand(struct Scsi_Host *, struct scsi_cmnd *); int command_abort(struct scsi_cmnd *srb); int device_reset(struct scsi_cmnd *srb); From 60e8b807a6fb989de5fc195a92cfab4fd890b3c9 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 31 Mar 2013 02:08:31 -0400 Subject: [PATCH 071/204] keucr: switch to ->show_info() Signed-off-by: Al Viro --- drivers/staging/keucr/scsiglue.c | 45 +++++++++----------------------- 1 file changed, 13 insertions(+), 32 deletions(-) diff --git a/drivers/staging/keucr/scsiglue.c b/drivers/staging/keucr/scsiglue.c index 083b20e6253e..48e1005349da 100644 --- a/drivers/staging/keucr/scsiglue.c +++ b/drivers/staging/keucr/scsiglue.c @@ -229,26 +229,18 @@ void usb_stor_report_bus_reset(struct us_data *us) /* we use this macro to help us write into the buffer */ #undef SPRINTF -#define SPRINTF(args...) \ - do { \ - if (pos < buffer+length) \ - pos += sprintf(pos, ## args); \ - } while (0) +#define SPRINTF(args...) seq_printf(m, ##args) -/* - * proc_info() - */ -static int proc_info(struct Scsi_Host *host, char *buffer, char **start, - off_t offset, int length, int inout) +static int write_info(struct Scsi_Host *host, char *buffer, int length) +{ + return length; +} + +static int show_info(struct seq_file *m, struct Scsi_Host *host) { struct us_data *us = host_to_us(host); - char *pos = buffer; const char *string; - /* pr_info("scsiglue --- proc_info\n"); */ - if (inout) - return length; - /* print the controller name */ SPRINTF(" Host scsi%d: usb-storage\n", host->host_no); @@ -278,29 +270,17 @@ static int proc_info(struct Scsi_Host *host, char *buffer, char **start, SPRINTF(" Transport: %s\n", us->transport_name); /* show the device flags */ - if (pos < buffer + length) { - pos += sprintf(pos, " Quirks:"); + SPRINTF(" Quirks:"); #define US_FLAG(name, value) \ do { \ if (us->fflags & value) \ - pos += sprintf(pos, " " #name); \ + SPRINTF(" " #name); \ } while (0); US_DO_ALL_FLAGS #undef US_FLAG - - *(pos++) = '\n'; - } - - /* Calculate start of next buffer, and return value. */ - *start = buffer + offset; - - if ((pos - buffer) < offset) - return 0; - else if ((pos - buffer - offset) < length) - return pos - buffer - offset; - else - return length; + seq_putc(m, '\n'); + return 0; } /*********************************************************************** @@ -351,7 +331,8 @@ struct scsi_host_template usb_stor_host_template = { /* basic userland interface stuff */ .name = "eucr-storage", .proc_name = "eucr-storage", - .proc_info = proc_info, + .write_info = write_info, + .show_info = show_info, .info = host_info, /* command interface -- queued only */ From 35c6e0e512910a246e9063a2ddce85741747f0d7 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 31 Mar 2013 02:11:39 -0400 Subject: [PATCH 072/204] nsp32: switch to ->show_info() Signed-off-by: Al Viro --- drivers/scsi/nsp32.c | 37 +++++-------------------------------- 1 file changed, 5 insertions(+), 32 deletions(-) diff --git a/drivers/scsi/nsp32.c b/drivers/scsi/nsp32.c index 1cc0c1c69c88..1e3879dcbdcc 100644 --- a/drivers/scsi/nsp32.c +++ b/drivers/scsi/nsp32.c @@ -192,7 +192,7 @@ static int __init init_nsp32 (void); static void __exit exit_nsp32 (void); /* struct struct scsi_host_template */ -static int nsp32_proc_info (struct Scsi_Host *, char *, char **, off_t, int, int); +static int nsp32_show_info (struct seq_file *, struct Scsi_Host *); static int nsp32_detect (struct pci_dev *pdev); static int nsp32_queuecommand(struct Scsi_Host *, struct scsi_cmnd *); @@ -268,7 +268,7 @@ static void nsp32_dmessage(const char *, int, int, char *, ...); static struct scsi_host_template nsp32_template = { .proc_name = "nsp32", .name = "Workbit NinjaSCSI-32Bi/UDE", - .proc_info = nsp32_proc_info, + .show_info = nsp32_show_info, .info = nsp32_info, .queuecommand = nsp32_queuecommand, .can_queue = 1, @@ -1442,19 +1442,10 @@ static irqreturn_t do_nsp32_isr(int irq, void *dev_id) } #undef SPRINTF -#define SPRINTF(args...) \ - do { \ - if(length > (pos - buffer)) { \ - pos += snprintf(pos, length - (pos - buffer) + 1, ## args); \ - nsp32_dbg(NSP32_DEBUG_PROC, "buffer=0x%p pos=0x%p length=%d %d\n", buffer, pos, length, length - (pos - buffer));\ - } \ - } while(0) +#define SPRINTF(args...) seq_printf(m, ##args) -static int nsp32_proc_info(struct Scsi_Host *host, char *buffer, char **start, - off_t offset, int length, int inout) +static int nsp32_show_info(struct seq_file *m, struct Scsi_Host *host) { - char *pos = buffer; - int thislength; unsigned long flags; nsp32_hw_data *data; int hostno; @@ -1463,11 +1454,6 @@ static int nsp32_proc_info(struct Scsi_Host *host, char *buffer, char **start, int id, speed; long model; - /* Write is not supported, just return. */ - if (inout == TRUE) { - return -EINVAL; - } - hostno = host->host_no; data = (nsp32_hw_data *)host->hostdata; base = host->io_port; @@ -1527,20 +1513,7 @@ static int nsp32_proc_info(struct Scsi_Host *host, char *buffer, char **start, } SPRINTF("\n"); } - - - thislength = pos - (buffer + offset); - - if(thislength < 0) { - *start = NULL; - return 0; - } - - - thislength = min(thislength, length); - *start = buffer + offset; - - return thislength; + return 0; } #undef SPRINTF From 63fd57cb5c21b7b914b13be0b225829c0f5dba10 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 31 Mar 2013 02:14:18 -0400 Subject: [PATCH 073/204] nsp_cs: switch to ->show_info() Signed-off-by: Al Viro --- drivers/scsi/pcmcia/nsp_cs.c | 34 ++++------------------------------ drivers/scsi/pcmcia/nsp_cs.h | 9 ++------- 2 files changed, 6 insertions(+), 37 deletions(-) diff --git a/drivers/scsi/pcmcia/nsp_cs.c b/drivers/scsi/pcmcia/nsp_cs.c index b61a753eb896..987fbb1b244e 100644 --- a/drivers/scsi/pcmcia/nsp_cs.c +++ b/drivers/scsi/pcmcia/nsp_cs.c @@ -76,7 +76,7 @@ MODULE_PARM_DESC(free_ports, "Release IO ports after configuration? (default: 0 static struct scsi_host_template nsp_driver_template = { .proc_name = "nsp_cs", - .proc_info = nsp_proc_info, + .show_info = nsp_show_info, .name = "WorkBit NinjaSCSI-3/32Bi(16bit)", .info = nsp_info, .queuecommand = nsp_queuecommand, @@ -1365,33 +1365,19 @@ static const char *nsp_info(struct Scsi_Host *shpnt) } #undef SPRINTF -#define SPRINTF(args...) \ - do { \ - if(length > (pos - buffer)) { \ - pos += snprintf(pos, length - (pos - buffer) + 1, ## args); \ - nsp_dbg(NSP_DEBUG_PROC, "buffer=0x%p pos=0x%p length=%d %d\n", buffer, pos, length, length - (pos - buffer));\ - } \ - } while(0) +#define SPRINTF(args...) seq_printf(m, ##args) -static int nsp_proc_info(struct Scsi_Host *host, char *buffer, char **start, - off_t offset, int length, int inout) +static int nsp_show_info(struct seq_file *m, struct Scsi_Host *host) { int id; - char *pos = buffer; - int thislength; int speed; unsigned long flags; nsp_hw_data *data; int hostno; - if (inout) { - return -EINVAL; - } - hostno = host->host_no; data = (nsp_hw_data *)host->hostdata; - SPRINTF("NinjaSCSI status\n\n"); SPRINTF("Driver version: $Revision: 1.23 $\n"); SPRINTF("SCSI host No.: %d\n", hostno); @@ -1458,19 +1444,7 @@ static int nsp_proc_info(struct Scsi_Host *host, char *buffer, char **start, } SPRINTF("\n"); } - - thislength = pos - (buffer + offset); - - if(thislength < 0) { - *start = NULL; - return 0; - } - - - thislength = min(thislength, length); - *start = buffer + offset; - - return thislength; + return 0; } #undef SPRINTF diff --git a/drivers/scsi/pcmcia/nsp_cs.h b/drivers/scsi/pcmcia/nsp_cs.h index 7fc9a9d0a448..afd64f0adc4b 100644 --- a/drivers/scsi/pcmcia/nsp_cs.h +++ b/drivers/scsi/pcmcia/nsp_cs.h @@ -292,13 +292,8 @@ static int nsp_cs_config (struct pcmcia_device *link); /* Linux SCSI subsystem specific functions */ static struct Scsi_Host *nsp_detect (struct scsi_host_template *sht); static const char *nsp_info (struct Scsi_Host *shpnt); -static int nsp_proc_info ( - struct Scsi_Host *host, - char *buffer, - char **start, - off_t offset, - int length, - int inout); +static int nsp_show_info (struct seq_file *m, + struct Scsi_Host *host); static int nsp_queuecommand(struct Scsi_Host *h, struct scsi_cmnd *SCpnt); /* Error handler */ From b59fb6fdce14bbec226cc4a4b5a4511a715ea6c2 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 31 Mar 2013 02:59:55 -0400 Subject: [PATCH 074/204] advansys: switch to ->show_info() Signed-off-by: Al Viro --- drivers/scsi/advansys.c | 1150 +++++++++++---------------------------- 1 file changed, 320 insertions(+), 830 deletions(-) diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index dcfaee66a8b9..9029a208b9c3 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -2178,22 +2178,6 @@ do { \ #define ASC_INFO_SIZE 128 /* advansys_info() line size */ -#ifdef CONFIG_PROC_FS -/* /proc/scsi/advansys/[0...] related definitions */ -#define ASC_PRTBUF_SIZE 2048 -#define ASC_PRTLINE_SIZE 160 - -#define ASC_PRT_NEXT() \ - if (cp) { \ - totlen += len; \ - leftlen -= len; \ - if (leftlen == 0) { \ - return totlen; \ - } \ - cp += len; \ - } -#endif /* CONFIG_PROC_FS */ - /* Asc Library return codes */ #define ASC_TRUE 1 #define ASC_FALSE 0 @@ -2384,7 +2368,6 @@ struct asc_board { } eep_config; ulong last_reset; /* Saved last reset time */ /* /proc/scsi/advansys/[0...] */ - char *prtbuf; /* /proc print buffer */ #ifdef ADVANSYS_STATS struct asc_stats asc_stats; /* Board statistics */ #endif /* ADVANSYS_STATS */ @@ -2875,64 +2858,21 @@ static const char *advansys_info(struct Scsi_Host *shost) } #ifdef CONFIG_PROC_FS -/* - * asc_prt_line() - * - * If 'cp' is NULL print to the console, otherwise print to a buffer. - * - * Return 0 if printing to the console, otherwise return the number of - * bytes written to the buffer. - * - * Note: If any single line is greater than ASC_PRTLINE_SIZE bytes the stack - * will be corrupted. 's[]' is defined to be ASC_PRTLINE_SIZE bytes. - */ -static int asc_prt_line(char *buf, int buflen, char *fmt, ...) -{ - va_list args; - int ret; - char s[ASC_PRTLINE_SIZE]; - - va_start(args, fmt); - ret = vsprintf(s, fmt, args); - BUG_ON(ret >= ASC_PRTLINE_SIZE); - if (buf == NULL) { - (void)printk(s); - ret = 0; - } else { - ret = min(buflen, ret); - memcpy(buf, s, ret); - } - va_end(args); - return ret; -} /* * asc_prt_board_devices() * * Print driver information for devices attached to the board. - * - * Note: no single line should be greater than ASC_PRTLINE_SIZE, - * cf. asc_prt_line(). - * - * Return the number of characters copied into 'cp'. No more than - * 'cplen' characters will be copied to 'cp'. */ -static int asc_prt_board_devices(struct Scsi_Host *shost, char *cp, int cplen) +static void asc_prt_board_devices(struct seq_file *m, struct Scsi_Host *shost) { struct asc_board *boardp = shost_priv(shost); - int leftlen; - int totlen; - int len; int chip_scsi_id; int i; - leftlen = cplen; - totlen = len = 0; - - len = asc_prt_line(cp, leftlen, - "\nDevice Information for AdvanSys SCSI Host %d:\n", - shost->host_no); - ASC_PRT_NEXT(); + seq_printf(m, + "\nDevice Information for AdvanSys SCSI Host %d:\n", + shost->host_no); if (ASC_NARROW_BOARD(boardp)) { chip_scsi_id = boardp->dvc_cfg.asc_dvc_cfg.chip_scsi_id; @@ -2940,60 +2880,42 @@ static int asc_prt_board_devices(struct Scsi_Host *shost, char *cp, int cplen) chip_scsi_id = boardp->dvc_var.adv_dvc_var.chip_scsi_id; } - len = asc_prt_line(cp, leftlen, "Target IDs Detected:"); - ASC_PRT_NEXT(); + seq_printf(m, "Target IDs Detected:"); for (i = 0; i <= ADV_MAX_TID; i++) { - if (boardp->init_tidmask & ADV_TID_TO_TIDMASK(i)) { - len = asc_prt_line(cp, leftlen, " %X,", i); - ASC_PRT_NEXT(); - } + if (boardp->init_tidmask & ADV_TID_TO_TIDMASK(i)) + seq_printf(m, " %X,", i); } - len = asc_prt_line(cp, leftlen, " (%X=Host Adapter)\n", chip_scsi_id); - ASC_PRT_NEXT(); - - return totlen; + seq_printf(m, " (%X=Host Adapter)\n", chip_scsi_id); } /* * Display Wide Board BIOS Information. */ -static int asc_prt_adv_bios(struct Scsi_Host *shost, char *cp, int cplen) +static void asc_prt_adv_bios(struct seq_file *m, struct Scsi_Host *shost) { struct asc_board *boardp = shost_priv(shost); - int leftlen; - int totlen; - int len; ushort major, minor, letter; - leftlen = cplen; - totlen = len = 0; - - len = asc_prt_line(cp, leftlen, "\nROM BIOS Version: "); - ASC_PRT_NEXT(); + seq_printf(m, "\nROM BIOS Version: "); /* * If the BIOS saved a valid signature, then fill in * the BIOS code segment base address. */ if (boardp->bios_signature != 0x55AA) { - len = asc_prt_line(cp, leftlen, "Disabled or Pre-3.1\n"); - ASC_PRT_NEXT(); - len = asc_prt_line(cp, leftlen, - "BIOS either disabled or Pre-3.1. If it is pre-3.1, then a newer version\n"); - ASC_PRT_NEXT(); - len = asc_prt_line(cp, leftlen, - "can be found at the ConnectCom FTP site: ftp://ftp.connectcom.net/pub\n"); - ASC_PRT_NEXT(); + seq_printf(m, "Disabled or Pre-3.1\n"); + seq_printf(m, + "BIOS either disabled or Pre-3.1. If it is pre-3.1, then a newer version\n"); + seq_printf(m, + "can be found at the ConnectCom FTP site: ftp://ftp.connectcom.net/pub\n"); } else { major = (boardp->bios_version >> 12) & 0xF; minor = (boardp->bios_version >> 8) & 0xF; letter = (boardp->bios_version & 0xFF); - len = asc_prt_line(cp, leftlen, "%d.%d%c\n", + seq_printf(m, "%d.%d%c\n", major, minor, letter >= 26 ? '?' : letter + 'A'); - ASC_PRT_NEXT(); - /* * Current available ROM BIOS release is 3.1I for UW * and 3.2I for U2W. This code doesn't differentiate @@ -3001,16 +2923,12 @@ static int asc_prt_adv_bios(struct Scsi_Host *shost, char *cp, int cplen) */ if (major < 3 || (major <= 3 && minor < 1) || (major <= 3 && minor <= 1 && letter < ('I' - 'A'))) { - len = asc_prt_line(cp, leftlen, - "Newer version of ROM BIOS is available at the ConnectCom FTP site:\n"); - ASC_PRT_NEXT(); - len = asc_prt_line(cp, leftlen, - "ftp://ftp.connectcom.net/pub\n"); - ASC_PRT_NEXT(); + seq_printf(m, + "Newer version of ROM BIOS is available at the ConnectCom FTP site:\n"); + seq_printf(m, + "ftp://ftp.connectcom.net/pub\n"); } } - - return totlen; } /* @@ -3115,20 +3033,11 @@ static int asc_get_eeprom_string(ushort *serialnum, uchar *cp) * asc_prt_asc_board_eeprom() * * Print board EEPROM configuration. - * - * Note: no single line should be greater than ASC_PRTLINE_SIZE, - * cf. asc_prt_line(). - * - * Return the number of characters copied into 'cp'. No more than - * 'cplen' characters will be copied to 'cp'. */ -static int asc_prt_asc_board_eeprom(struct Scsi_Host *shost, char *cp, int cplen) +static void asc_prt_asc_board_eeprom(struct seq_file *m, struct Scsi_Host *shost) { struct asc_board *boardp = shost_priv(shost); ASC_DVC_VAR *asc_dvc_varp; - int leftlen; - int totlen; - int len; ASCEEP_CONFIG *ep; int i; #ifdef CONFIG_ISA @@ -3139,129 +3048,75 @@ static int asc_prt_asc_board_eeprom(struct Scsi_Host *shost, char *cp, int cplen asc_dvc_varp = &boardp->dvc_var.asc_dvc_var; ep = &boardp->eep_config.asc_eep; - leftlen = cplen; - totlen = len = 0; - - len = asc_prt_line(cp, leftlen, - "\nEEPROM Settings for AdvanSys SCSI Host %d:\n", - shost->host_no); - ASC_PRT_NEXT(); + seq_printf(m, + "\nEEPROM Settings for AdvanSys SCSI Host %d:\n", + shost->host_no); if (asc_get_eeprom_string((ushort *)&ep->adapter_info[0], serialstr) - == ASC_TRUE) { - len = - asc_prt_line(cp, leftlen, " Serial Number: %s\n", - serialstr); - ASC_PRT_NEXT(); - } else { - if (ep->adapter_info[5] == 0xBB) { - len = asc_prt_line(cp, leftlen, - " Default Settings Used for EEPROM-less Adapter.\n"); - ASC_PRT_NEXT(); - } else { - len = asc_prt_line(cp, leftlen, - " Serial Number Signature Not Present.\n"); - ASC_PRT_NEXT(); - } - } + == ASC_TRUE) + seq_printf(m, " Serial Number: %s\n", serialstr); + else if (ep->adapter_info[5] == 0xBB) + seq_printf(m, + " Default Settings Used for EEPROM-less Adapter.\n"); + else + seq_printf(m, + " Serial Number Signature Not Present.\n"); - len = asc_prt_line(cp, leftlen, - " Host SCSI ID: %u, Host Queue Size: %u, Device Queue Size: %u\n", - ASC_EEP_GET_CHIP_ID(ep), ep->max_total_qng, - ep->max_tag_qng); - ASC_PRT_NEXT(); + seq_printf(m, + " Host SCSI ID: %u, Host Queue Size: %u, Device Queue Size: %u\n", + ASC_EEP_GET_CHIP_ID(ep), ep->max_total_qng, + ep->max_tag_qng); - len = asc_prt_line(cp, leftlen, - " cntl 0x%x, no_scam 0x%x\n", ep->cntl, ep->no_scam); - ASC_PRT_NEXT(); + seq_printf(m, + " cntl 0x%x, no_scam 0x%x\n", ep->cntl, ep->no_scam); - len = asc_prt_line(cp, leftlen, " Target ID: "); - ASC_PRT_NEXT(); - for (i = 0; i <= ASC_MAX_TID; i++) { - len = asc_prt_line(cp, leftlen, " %d", i); - ASC_PRT_NEXT(); - } - len = asc_prt_line(cp, leftlen, "\n"); - ASC_PRT_NEXT(); + seq_printf(m, " Target ID: "); + for (i = 0; i <= ASC_MAX_TID; i++) + seq_printf(m, " %d", i); + seq_printf(m, "\n"); - len = asc_prt_line(cp, leftlen, " Disconnects: "); - ASC_PRT_NEXT(); - for (i = 0; i <= ASC_MAX_TID; i++) { - len = asc_prt_line(cp, leftlen, " %c", - (ep-> - disc_enable & ADV_TID_TO_TIDMASK(i)) ? 'Y' : - 'N'); - ASC_PRT_NEXT(); - } - len = asc_prt_line(cp, leftlen, "\n"); - ASC_PRT_NEXT(); + seq_printf(m, " Disconnects: "); + for (i = 0; i <= ASC_MAX_TID; i++) + seq_printf(m, " %c", + (ep->disc_enable & ADV_TID_TO_TIDMASK(i)) ? 'Y' : 'N'); + seq_printf(m, "\n"); - len = asc_prt_line(cp, leftlen, " Command Queuing: "); - ASC_PRT_NEXT(); - for (i = 0; i <= ASC_MAX_TID; i++) { - len = asc_prt_line(cp, leftlen, " %c", - (ep-> - use_cmd_qng & ADV_TID_TO_TIDMASK(i)) ? 'Y' : - 'N'); - ASC_PRT_NEXT(); - } - len = asc_prt_line(cp, leftlen, "\n"); - ASC_PRT_NEXT(); + seq_printf(m, " Command Queuing: "); + for (i = 0; i <= ASC_MAX_TID; i++) + seq_printf(m, " %c", + (ep->use_cmd_qng & ADV_TID_TO_TIDMASK(i)) ? 'Y' : 'N'); + seq_printf(m, "\n"); - len = asc_prt_line(cp, leftlen, " Start Motor: "); - ASC_PRT_NEXT(); - for (i = 0; i <= ASC_MAX_TID; i++) { - len = asc_prt_line(cp, leftlen, " %c", - (ep-> - start_motor & ADV_TID_TO_TIDMASK(i)) ? 'Y' : - 'N'); - ASC_PRT_NEXT(); - } - len = asc_prt_line(cp, leftlen, "\n"); - ASC_PRT_NEXT(); + seq_printf(m, " Start Motor: "); + for (i = 0; i <= ASC_MAX_TID; i++) + seq_printf(m, " %c", + (ep->start_motor & ADV_TID_TO_TIDMASK(i)) ? 'Y' : 'N'); + seq_printf(m, "\n"); - len = asc_prt_line(cp, leftlen, " Synchronous Transfer:"); - ASC_PRT_NEXT(); - for (i = 0; i <= ASC_MAX_TID; i++) { - len = asc_prt_line(cp, leftlen, " %c", - (ep-> - init_sdtr & ADV_TID_TO_TIDMASK(i)) ? 'Y' : - 'N'); - ASC_PRT_NEXT(); - } - len = asc_prt_line(cp, leftlen, "\n"); - ASC_PRT_NEXT(); + seq_printf(m, " Synchronous Transfer:"); + for (i = 0; i <= ASC_MAX_TID; i++) + seq_printf(m, " %c", + (ep->init_sdtr & ADV_TID_TO_TIDMASK(i)) ? 'Y' : 'N'); + seq_printf(m, "\n"); #ifdef CONFIG_ISA if (asc_dvc_varp->bus_type & ASC_IS_ISA) { - len = asc_prt_line(cp, leftlen, - " Host ISA DMA speed: %d MB/S\n", - isa_dma_speed[ASC_EEP_GET_DMA_SPD(ep)]); - ASC_PRT_NEXT(); + seq_printf(m, + " Host ISA DMA speed: %d MB/S\n", + isa_dma_speed[ASC_EEP_GET_DMA_SPD(ep)]); } #endif /* CONFIG_ISA */ - - return totlen; } /* * asc_prt_adv_board_eeprom() * * Print board EEPROM configuration. - * - * Note: no single line should be greater than ASC_PRTLINE_SIZE, - * cf. asc_prt_line(). - * - * Return the number of characters copied into 'cp'. No more than - * 'cplen' characters will be copied to 'cp'. */ -static int asc_prt_adv_board_eeprom(struct Scsi_Host *shost, char *cp, int cplen) +static void asc_prt_adv_board_eeprom(struct seq_file *m, struct Scsi_Host *shost) { struct asc_board *boardp = shost_priv(shost); ADV_DVC_VAR *adv_dvc_varp; - int leftlen; - int totlen; - int len; int i; char *termstr; uchar serialstr[13]; @@ -3281,13 +3136,9 @@ static int asc_prt_adv_board_eeprom(struct Scsi_Host *shost, char *cp, int cplen ep_38C1600 = &boardp->eep_config.adv_38C1600_eep; } - leftlen = cplen; - totlen = len = 0; - - len = asc_prt_line(cp, leftlen, - "\nEEPROM Settings for AdvanSys SCSI Host %d:\n", - shost->host_no); - ASC_PRT_NEXT(); + seq_printf(m, + "\nEEPROM Settings for AdvanSys SCSI Host %d:\n", + shost->host_no); if (adv_dvc_varp->chip_type == ADV_CHIP_ASC3550) { wordp = &ep_3550->serial_number_word1; @@ -3297,38 +3148,28 @@ static int asc_prt_adv_board_eeprom(struct Scsi_Host *shost, char *cp, int cplen wordp = &ep_38C1600->serial_number_word1; } - if (asc_get_eeprom_string(wordp, serialstr) == ASC_TRUE) { - len = - asc_prt_line(cp, leftlen, " Serial Number: %s\n", - serialstr); - ASC_PRT_NEXT(); - } else { - len = asc_prt_line(cp, leftlen, - " Serial Number Signature Not Present.\n"); - ASC_PRT_NEXT(); - } + if (asc_get_eeprom_string(wordp, serialstr) == ASC_TRUE) + seq_printf(m, " Serial Number: %s\n", serialstr); + else + seq_printf(m, " Serial Number Signature Not Present.\n"); - if (adv_dvc_varp->chip_type == ADV_CHIP_ASC3550) { - len = asc_prt_line(cp, leftlen, - " Host SCSI ID: %u, Host Queue Size: %u, Device Queue Size: %u\n", - ep_3550->adapter_scsi_id, - ep_3550->max_host_qng, ep_3550->max_dvc_qng); - ASC_PRT_NEXT(); - } else if (adv_dvc_varp->chip_type == ADV_CHIP_ASC38C0800) { - len = asc_prt_line(cp, leftlen, - " Host SCSI ID: %u, Host Queue Size: %u, Device Queue Size: %u\n", - ep_38C0800->adapter_scsi_id, - ep_38C0800->max_host_qng, - ep_38C0800->max_dvc_qng); - ASC_PRT_NEXT(); - } else { - len = asc_prt_line(cp, leftlen, - " Host SCSI ID: %u, Host Queue Size: %u, Device Queue Size: %u\n", - ep_38C1600->adapter_scsi_id, - ep_38C1600->max_host_qng, - ep_38C1600->max_dvc_qng); - ASC_PRT_NEXT(); - } + if (adv_dvc_varp->chip_type == ADV_CHIP_ASC3550) + seq_printf(m, + " Host SCSI ID: %u, Host Queue Size: %u, Device Queue Size: %u\n", + ep_3550->adapter_scsi_id, + ep_3550->max_host_qng, ep_3550->max_dvc_qng); + else if (adv_dvc_varp->chip_type == ADV_CHIP_ASC38C0800) + seq_printf(m, + " Host SCSI ID: %u, Host Queue Size: %u, Device Queue Size: %u\n", + ep_38C0800->adapter_scsi_id, + ep_38C0800->max_host_qng, + ep_38C0800->max_dvc_qng); + else + seq_printf(m, + " Host SCSI ID: %u, Host Queue Size: %u, Device Queue Size: %u\n", + ep_38C1600->adapter_scsi_id, + ep_38C1600->max_host_qng, + ep_38C1600->max_dvc_qng); if (adv_dvc_varp->chip_type == ADV_CHIP_ASC3550) { word = ep_3550->termination; } else if (adv_dvc_varp->chip_type == ADV_CHIP_ASC38C0800) { @@ -3352,34 +3193,26 @@ static int asc_prt_adv_board_eeprom(struct Scsi_Host *shost, char *cp, int cplen break; } - if (adv_dvc_varp->chip_type == ADV_CHIP_ASC3550) { - len = asc_prt_line(cp, leftlen, - " termination: %u (%s), bios_ctrl: 0x%x\n", - ep_3550->termination, termstr, - ep_3550->bios_ctrl); - ASC_PRT_NEXT(); - } else if (adv_dvc_varp->chip_type == ADV_CHIP_ASC38C0800) { - len = asc_prt_line(cp, leftlen, - " termination: %u (%s), bios_ctrl: 0x%x\n", - ep_38C0800->termination_lvd, termstr, - ep_38C0800->bios_ctrl); - ASC_PRT_NEXT(); - } else { - len = asc_prt_line(cp, leftlen, - " termination: %u (%s), bios_ctrl: 0x%x\n", - ep_38C1600->termination_lvd, termstr, - ep_38C1600->bios_ctrl); - ASC_PRT_NEXT(); - } + if (adv_dvc_varp->chip_type == ADV_CHIP_ASC3550) + seq_printf(m, + " termination: %u (%s), bios_ctrl: 0x%x\n", + ep_3550->termination, termstr, + ep_3550->bios_ctrl); + else if (adv_dvc_varp->chip_type == ADV_CHIP_ASC38C0800) + seq_printf(m, + " termination: %u (%s), bios_ctrl: 0x%x\n", + ep_38C0800->termination_lvd, termstr, + ep_38C0800->bios_ctrl); + else + seq_printf(m, + " termination: %u (%s), bios_ctrl: 0x%x\n", + ep_38C1600->termination_lvd, termstr, + ep_38C1600->bios_ctrl); - len = asc_prt_line(cp, leftlen, " Target ID: "); - ASC_PRT_NEXT(); - for (i = 0; i <= ADV_MAX_TID; i++) { - len = asc_prt_line(cp, leftlen, " %X", i); - ASC_PRT_NEXT(); - } - len = asc_prt_line(cp, leftlen, "\n"); - ASC_PRT_NEXT(); + seq_printf(m, " Target ID: "); + for (i = 0; i <= ADV_MAX_TID; i++) + seq_printf(m, " %X", i); + seq_printf(m, "\n"); if (adv_dvc_varp->chip_type == ADV_CHIP_ASC3550) { word = ep_3550->disc_enable; @@ -3388,15 +3221,11 @@ static int asc_prt_adv_board_eeprom(struct Scsi_Host *shost, char *cp, int cplen } else { word = ep_38C1600->disc_enable; } - len = asc_prt_line(cp, leftlen, " Disconnects: "); - ASC_PRT_NEXT(); - for (i = 0; i <= ADV_MAX_TID; i++) { - len = asc_prt_line(cp, leftlen, " %c", - (word & ADV_TID_TO_TIDMASK(i)) ? 'Y' : 'N'); - ASC_PRT_NEXT(); - } - len = asc_prt_line(cp, leftlen, "\n"); - ASC_PRT_NEXT(); + seq_printf(m, " Disconnects: "); + for (i = 0; i <= ADV_MAX_TID; i++) + seq_printf(m, " %c", + (word & ADV_TID_TO_TIDMASK(i)) ? 'Y' : 'N'); + seq_printf(m, "\n"); if (adv_dvc_varp->chip_type == ADV_CHIP_ASC3550) { word = ep_3550->tagqng_able; @@ -3405,15 +3234,11 @@ static int asc_prt_adv_board_eeprom(struct Scsi_Host *shost, char *cp, int cplen } else { word = ep_38C1600->tagqng_able; } - len = asc_prt_line(cp, leftlen, " Command Queuing: "); - ASC_PRT_NEXT(); - for (i = 0; i <= ADV_MAX_TID; i++) { - len = asc_prt_line(cp, leftlen, " %c", - (word & ADV_TID_TO_TIDMASK(i)) ? 'Y' : 'N'); - ASC_PRT_NEXT(); - } - len = asc_prt_line(cp, leftlen, "\n"); - ASC_PRT_NEXT(); + seq_printf(m, " Command Queuing: "); + for (i = 0; i <= ADV_MAX_TID; i++) + seq_printf(m, " %c", + (word & ADV_TID_TO_TIDMASK(i)) ? 'Y' : 'N'); + seq_printf(m, "\n"); if (adv_dvc_varp->chip_type == ADV_CHIP_ASC3550) { word = ep_3550->start_motor; @@ -3422,42 +3247,28 @@ static int asc_prt_adv_board_eeprom(struct Scsi_Host *shost, char *cp, int cplen } else { word = ep_38C1600->start_motor; } - len = asc_prt_line(cp, leftlen, " Start Motor: "); - ASC_PRT_NEXT(); - for (i = 0; i <= ADV_MAX_TID; i++) { - len = asc_prt_line(cp, leftlen, " %c", - (word & ADV_TID_TO_TIDMASK(i)) ? 'Y' : 'N'); - ASC_PRT_NEXT(); - } - len = asc_prt_line(cp, leftlen, "\n"); - ASC_PRT_NEXT(); + seq_printf(m, " Start Motor: "); + for (i = 0; i <= ADV_MAX_TID; i++) + seq_printf(m, " %c", + (word & ADV_TID_TO_TIDMASK(i)) ? 'Y' : 'N'); + seq_printf(m, "\n"); if (adv_dvc_varp->chip_type == ADV_CHIP_ASC3550) { - len = asc_prt_line(cp, leftlen, " Synchronous Transfer:"); - ASC_PRT_NEXT(); - for (i = 0; i <= ADV_MAX_TID; i++) { - len = asc_prt_line(cp, leftlen, " %c", - (ep_3550-> - sdtr_able & ADV_TID_TO_TIDMASK(i)) ? - 'Y' : 'N'); - ASC_PRT_NEXT(); - } - len = asc_prt_line(cp, leftlen, "\n"); - ASC_PRT_NEXT(); + seq_printf(m, " Synchronous Transfer:"); + for (i = 0; i <= ADV_MAX_TID; i++) + seq_printf(m, " %c", + (ep_3550->sdtr_able & ADV_TID_TO_TIDMASK(i)) ? + 'Y' : 'N'); + seq_printf(m, "\n"); } if (adv_dvc_varp->chip_type == ADV_CHIP_ASC3550) { - len = asc_prt_line(cp, leftlen, " Ultra Transfer: "); - ASC_PRT_NEXT(); - for (i = 0; i <= ADV_MAX_TID; i++) { - len = asc_prt_line(cp, leftlen, " %c", - (ep_3550-> - ultra_able & ADV_TID_TO_TIDMASK(i)) - ? 'Y' : 'N'); - ASC_PRT_NEXT(); - } - len = asc_prt_line(cp, leftlen, "\n"); - ASC_PRT_NEXT(); + seq_printf(m, " Ultra Transfer: "); + for (i = 0; i <= ADV_MAX_TID; i++) + seq_printf(m, " %c", + (ep_3550->ultra_able & ADV_TID_TO_TIDMASK(i)) + ? 'Y' : 'N'); + seq_printf(m, "\n"); } if (adv_dvc_varp->chip_type == ADV_CHIP_ASC3550) { @@ -3467,21 +3278,16 @@ static int asc_prt_adv_board_eeprom(struct Scsi_Host *shost, char *cp, int cplen } else { word = ep_38C1600->wdtr_able; } - len = asc_prt_line(cp, leftlen, " Wide Transfer: "); - ASC_PRT_NEXT(); - for (i = 0; i <= ADV_MAX_TID; i++) { - len = asc_prt_line(cp, leftlen, " %c", - (word & ADV_TID_TO_TIDMASK(i)) ? 'Y' : 'N'); - ASC_PRT_NEXT(); - } - len = asc_prt_line(cp, leftlen, "\n"); - ASC_PRT_NEXT(); + seq_printf(m, " Wide Transfer: "); + for (i = 0; i <= ADV_MAX_TID; i++) + seq_printf(m, " %c", + (word & ADV_TID_TO_TIDMASK(i)) ? 'Y' : 'N'); + seq_printf(m, "\n"); if (adv_dvc_varp->chip_type == ADV_CHIP_ASC38C0800 || adv_dvc_varp->chip_type == ADV_CHIP_ASC38C1600) { - len = asc_prt_line(cp, leftlen, - " Synchronous Transfer Speed (Mhz):\n "); - ASC_PRT_NEXT(); + seq_printf(m, + " Synchronous Transfer Speed (Mhz):\n "); for (i = 0; i <= ADV_MAX_TID; i++) { char *speed_str; @@ -3517,99 +3323,64 @@ static int asc_prt_adv_board_eeprom(struct Scsi_Host *shost, char *cp, int cplen speed_str = "Unk"; break; } - len = asc_prt_line(cp, leftlen, "%X:%s ", i, speed_str); - ASC_PRT_NEXT(); - if (i == 7) { - len = asc_prt_line(cp, leftlen, "\n "); - ASC_PRT_NEXT(); - } + seq_printf(m, "%X:%s ", i, speed_str); + if (i == 7) + seq_printf(m, "\n "); sdtr_speed >>= 4; } - len = asc_prt_line(cp, leftlen, "\n"); - ASC_PRT_NEXT(); + seq_printf(m, "\n"); } - - return totlen; } /* * asc_prt_driver_conf() - * - * Note: no single line should be greater than ASC_PRTLINE_SIZE, - * cf. asc_prt_line(). - * - * Return the number of characters copied into 'cp'. No more than - * 'cplen' characters will be copied to 'cp'. */ -static int asc_prt_driver_conf(struct Scsi_Host *shost, char *cp, int cplen) +static void asc_prt_driver_conf(struct seq_file *m, struct Scsi_Host *shost) { struct asc_board *boardp = shost_priv(shost); - int leftlen; - int totlen; - int len; int chip_scsi_id; - leftlen = cplen; - totlen = len = 0; + seq_printf(m, + "\nLinux Driver Configuration and Information for AdvanSys SCSI Host %d:\n", + shost->host_no); - len = asc_prt_line(cp, leftlen, - "\nLinux Driver Configuration and Information for AdvanSys SCSI Host %d:\n", - shost->host_no); - ASC_PRT_NEXT(); + seq_printf(m, + " host_busy %u, last_reset %u, max_id %u, max_lun %u, max_channel %u\n", + shost->host_busy, shost->last_reset, shost->max_id, + shost->max_lun, shost->max_channel); - len = asc_prt_line(cp, leftlen, - " host_busy %u, last_reset %u, max_id %u, max_lun %u, max_channel %u\n", - shost->host_busy, shost->last_reset, shost->max_id, - shost->max_lun, shost->max_channel); - ASC_PRT_NEXT(); + seq_printf(m, + " unique_id %d, can_queue %d, this_id %d, sg_tablesize %u, cmd_per_lun %u\n", + shost->unique_id, shost->can_queue, shost->this_id, + shost->sg_tablesize, shost->cmd_per_lun); - len = asc_prt_line(cp, leftlen, - " unique_id %d, can_queue %d, this_id %d, sg_tablesize %u, cmd_per_lun %u\n", - shost->unique_id, shost->can_queue, shost->this_id, - shost->sg_tablesize, shost->cmd_per_lun); - ASC_PRT_NEXT(); + seq_printf(m, + " unchecked_isa_dma %d, use_clustering %d\n", + shost->unchecked_isa_dma, shost->use_clustering); - len = asc_prt_line(cp, leftlen, - " unchecked_isa_dma %d, use_clustering %d\n", - shost->unchecked_isa_dma, shost->use_clustering); - ASC_PRT_NEXT(); + seq_printf(m, + " flags 0x%x, last_reset 0x%x, jiffies 0x%x, asc_n_io_port 0x%x\n", + boardp->flags, boardp->last_reset, jiffies, + boardp->asc_n_io_port); - len = asc_prt_line(cp, leftlen, - " flags 0x%x, last_reset 0x%x, jiffies 0x%x, asc_n_io_port 0x%x\n", - boardp->flags, boardp->last_reset, jiffies, - boardp->asc_n_io_port); - ASC_PRT_NEXT(); - - len = asc_prt_line(cp, leftlen, " io_port 0x%x\n", shost->io_port); - ASC_PRT_NEXT(); + seq_printf(m, " io_port 0x%x\n", shost->io_port); if (ASC_NARROW_BOARD(boardp)) { chip_scsi_id = boardp->dvc_cfg.asc_dvc_cfg.chip_scsi_id; } else { chip_scsi_id = boardp->dvc_var.adv_dvc_var.chip_scsi_id; } - - return totlen; } /* * asc_prt_asc_board_info() * * Print dynamic board configuration information. - * - * Note: no single line should be greater than ASC_PRTLINE_SIZE, - * cf. asc_prt_line(). - * - * Return the number of characters copied into 'cp'. No more than - * 'cplen' characters will be copied to 'cp'. */ -static int asc_prt_asc_board_info(struct Scsi_Host *shost, char *cp, int cplen) +static void asc_prt_asc_board_info(struct seq_file *m, struct Scsi_Host *shost) { struct asc_board *boardp = shost_priv(shost); int chip_scsi_id; - int leftlen; - int totlen; - int len; ASC_DVC_VAR *v; ASC_DVC_CFG *c; int i; @@ -3619,105 +3390,79 @@ static int asc_prt_asc_board_info(struct Scsi_Host *shost, char *cp, int cplen) c = &boardp->dvc_cfg.asc_dvc_cfg; chip_scsi_id = c->chip_scsi_id; - leftlen = cplen; - totlen = len = 0; + seq_printf(m, + "\nAsc Library Configuration and Statistics for AdvanSys SCSI Host %d:\n", + shost->host_no); - len = asc_prt_line(cp, leftlen, - "\nAsc Library Configuration and Statistics for AdvanSys SCSI Host %d:\n", - shost->host_no); - ASC_PRT_NEXT(); - - len = asc_prt_line(cp, leftlen, " chip_version %u, mcode_date 0x%x, " - "mcode_version 0x%x, err_code %u\n", - c->chip_version, c->mcode_date, c->mcode_version, - v->err_code); - ASC_PRT_NEXT(); + seq_printf(m, " chip_version %u, mcode_date 0x%x, " + "mcode_version 0x%x, err_code %u\n", + c->chip_version, c->mcode_date, c->mcode_version, + v->err_code); /* Current number of commands waiting for the host. */ - len = asc_prt_line(cp, leftlen, - " Total Command Pending: %d\n", v->cur_total_qng); - ASC_PRT_NEXT(); + seq_printf(m, + " Total Command Pending: %d\n", v->cur_total_qng); - len = asc_prt_line(cp, leftlen, " Command Queuing:"); - ASC_PRT_NEXT(); + seq_printf(m, " Command Queuing:"); for (i = 0; i <= ASC_MAX_TID; i++) { if ((chip_scsi_id == i) || ((boardp->init_tidmask & ADV_TID_TO_TIDMASK(i)) == 0)) { continue; } - len = asc_prt_line(cp, leftlen, " %X:%c", - i, - (v-> - use_tagged_qng & ADV_TID_TO_TIDMASK(i)) ? - 'Y' : 'N'); - ASC_PRT_NEXT(); + seq_printf(m, " %X:%c", + i, + (v->use_tagged_qng & ADV_TID_TO_TIDMASK(i)) ? 'Y' : 'N'); } - len = asc_prt_line(cp, leftlen, "\n"); - ASC_PRT_NEXT(); + seq_printf(m, "\n"); /* Current number of commands waiting for a device. */ - len = asc_prt_line(cp, leftlen, " Command Queue Pending:"); - ASC_PRT_NEXT(); + seq_printf(m, " Command Queue Pending:"); for (i = 0; i <= ASC_MAX_TID; i++) { if ((chip_scsi_id == i) || ((boardp->init_tidmask & ADV_TID_TO_TIDMASK(i)) == 0)) { continue; } - len = asc_prt_line(cp, leftlen, " %X:%u", i, v->cur_dvc_qng[i]); - ASC_PRT_NEXT(); + seq_printf(m, " %X:%u", i, v->cur_dvc_qng[i]); } - len = asc_prt_line(cp, leftlen, "\n"); - ASC_PRT_NEXT(); + seq_printf(m, "\n"); /* Current limit on number of commands that can be sent to a device. */ - len = asc_prt_line(cp, leftlen, " Command Queue Limit:"); - ASC_PRT_NEXT(); + seq_printf(m, " Command Queue Limit:"); for (i = 0; i <= ASC_MAX_TID; i++) { if ((chip_scsi_id == i) || ((boardp->init_tidmask & ADV_TID_TO_TIDMASK(i)) == 0)) { continue; } - len = asc_prt_line(cp, leftlen, " %X:%u", i, v->max_dvc_qng[i]); - ASC_PRT_NEXT(); + seq_printf(m, " %X:%u", i, v->max_dvc_qng[i]); } - len = asc_prt_line(cp, leftlen, "\n"); - ASC_PRT_NEXT(); + seq_printf(m, "\n"); /* Indicate whether the device has returned queue full status. */ - len = asc_prt_line(cp, leftlen, " Command Queue Full:"); - ASC_PRT_NEXT(); + seq_printf(m, " Command Queue Full:"); for (i = 0; i <= ASC_MAX_TID; i++) { if ((chip_scsi_id == i) || ((boardp->init_tidmask & ADV_TID_TO_TIDMASK(i)) == 0)) { continue; } - if (boardp->queue_full & ADV_TID_TO_TIDMASK(i)) { - len = asc_prt_line(cp, leftlen, " %X:Y-%d", - i, boardp->queue_full_cnt[i]); - } else { - len = asc_prt_line(cp, leftlen, " %X:N", i); - } - ASC_PRT_NEXT(); + if (boardp->queue_full & ADV_TID_TO_TIDMASK(i)) + seq_printf(m, " %X:Y-%d", + i, boardp->queue_full_cnt[i]); + else + seq_printf(m, " %X:N", i); } - len = asc_prt_line(cp, leftlen, "\n"); - ASC_PRT_NEXT(); + seq_printf(m, "\n"); - len = asc_prt_line(cp, leftlen, " Synchronous Transfer:"); - ASC_PRT_NEXT(); + seq_printf(m, " Synchronous Transfer:"); for (i = 0; i <= ASC_MAX_TID; i++) { if ((chip_scsi_id == i) || ((boardp->init_tidmask & ADV_TID_TO_TIDMASK(i)) == 0)) { continue; } - len = asc_prt_line(cp, leftlen, " %X:%c", - i, - (v-> - sdtr_done & ADV_TID_TO_TIDMASK(i)) ? 'Y' : - 'N'); - ASC_PRT_NEXT(); + seq_printf(m, " %X:%c", + i, + (v->sdtr_done & ADV_TID_TO_TIDMASK(i)) ? 'Y' : 'N'); } - len = asc_prt_line(cp, leftlen, "\n"); - ASC_PRT_NEXT(); + seq_printf(m, "\n"); for (i = 0; i <= ASC_MAX_TID; i++) { uchar syn_period_ix; @@ -3728,69 +3473,48 @@ static int asc_prt_asc_board_info(struct Scsi_Host *shost, char *cp, int cplen) continue; } - len = asc_prt_line(cp, leftlen, " %X:", i); - ASC_PRT_NEXT(); + seq_printf(m, " %X:", i); if ((boardp->sdtr_data[i] & ASC_SYN_MAX_OFFSET) == 0) { - len = asc_prt_line(cp, leftlen, " Asynchronous"); - ASC_PRT_NEXT(); + seq_printf(m, " Asynchronous"); } else { syn_period_ix = (boardp->sdtr_data[i] >> 4) & (v->max_sdtr_index - 1); - len = asc_prt_line(cp, leftlen, - " Transfer Period Factor: %d (%d.%d Mhz),", - v->sdtr_period_tbl[syn_period_ix], - 250 / - v->sdtr_period_tbl[syn_period_ix], - ASC_TENTHS(250, - v-> - sdtr_period_tbl - [syn_period_ix])); - ASC_PRT_NEXT(); + seq_printf(m, + " Transfer Period Factor: %d (%d.%d Mhz),", + v->sdtr_period_tbl[syn_period_ix], + 250 / v->sdtr_period_tbl[syn_period_ix], + ASC_TENTHS(250, + v->sdtr_period_tbl[syn_period_ix])); - len = asc_prt_line(cp, leftlen, " REQ/ACK Offset: %d", - boardp-> - sdtr_data[i] & ASC_SYN_MAX_OFFSET); - ASC_PRT_NEXT(); + seq_printf(m, " REQ/ACK Offset: %d", + boardp->sdtr_data[i] & ASC_SYN_MAX_OFFSET); } if ((v->sdtr_done & ADV_TID_TO_TIDMASK(i)) == 0) { - len = asc_prt_line(cp, leftlen, "*\n"); + seq_printf(m, "*\n"); renegotiate = 1; } else { - len = asc_prt_line(cp, leftlen, "\n"); + seq_printf(m, "\n"); } - ASC_PRT_NEXT(); } if (renegotiate) { - len = asc_prt_line(cp, leftlen, - " * = Re-negotiation pending before next command.\n"); - ASC_PRT_NEXT(); + seq_printf(m, + " * = Re-negotiation pending before next command.\n"); } - - return totlen; } /* * asc_prt_adv_board_info() * * Print dynamic board configuration information. - * - * Note: no single line should be greater than ASC_PRTLINE_SIZE, - * cf. asc_prt_line(). - * - * Return the number of characters copied into 'cp'. No more than - * 'cplen' characters will be copied to 'cp'. */ -static int asc_prt_adv_board_info(struct Scsi_Host *shost, char *cp, int cplen) +static void asc_prt_adv_board_info(struct seq_file *m, struct Scsi_Host *shost) { struct asc_board *boardp = shost_priv(shost); - int leftlen; - int totlen; - int len; int i; ADV_DVC_VAR *v; ADV_DVC_CFG *c; @@ -3809,47 +3533,35 @@ static int asc_prt_adv_board_info(struct Scsi_Host *shost, char *cp, int cplen) iop_base = v->iop_base; chip_scsi_id = v->chip_scsi_id; - leftlen = cplen; - totlen = len = 0; + seq_printf(m, + "\nAdv Library Configuration and Statistics for AdvanSys SCSI Host %d:\n", + shost->host_no); - len = asc_prt_line(cp, leftlen, - "\nAdv Library Configuration and Statistics for AdvanSys SCSI Host %d:\n", - shost->host_no); - ASC_PRT_NEXT(); + seq_printf(m, + " iop_base 0x%lx, cable_detect: %X, err_code %u\n", + v->iop_base, + AdvReadWordRegister(iop_base,IOPW_SCSI_CFG1) & CABLE_DETECT, + v->err_code); - len = asc_prt_line(cp, leftlen, - " iop_base 0x%lx, cable_detect: %X, err_code %u\n", - v->iop_base, - AdvReadWordRegister(iop_base, - IOPW_SCSI_CFG1) & CABLE_DETECT, - v->err_code); - ASC_PRT_NEXT(); - - len = asc_prt_line(cp, leftlen, " chip_version %u, mcode_date 0x%x, " - "mcode_version 0x%x\n", c->chip_version, - c->mcode_date, c->mcode_version); - ASC_PRT_NEXT(); + seq_printf(m, " chip_version %u, mcode_date 0x%x, " + "mcode_version 0x%x\n", c->chip_version, + c->mcode_date, c->mcode_version); AdvReadWordLram(iop_base, ASC_MC_TAGQNG_ABLE, tagqng_able); - len = asc_prt_line(cp, leftlen, " Queuing Enabled:"); - ASC_PRT_NEXT(); + seq_printf(m, " Queuing Enabled:"); for (i = 0; i <= ADV_MAX_TID; i++) { if ((chip_scsi_id == i) || ((boardp->init_tidmask & ADV_TID_TO_TIDMASK(i)) == 0)) { continue; } - len = asc_prt_line(cp, leftlen, " %X:%c", - i, - (tagqng_able & ADV_TID_TO_TIDMASK(i)) ? 'Y' : - 'N'); - ASC_PRT_NEXT(); + seq_printf(m, " %X:%c", + i, + (tagqng_able & ADV_TID_TO_TIDMASK(i)) ? 'Y' : 'N'); } - len = asc_prt_line(cp, leftlen, "\n"); - ASC_PRT_NEXT(); + seq_printf(m, "\n"); - len = asc_prt_line(cp, leftlen, " Queue Limit:"); - ASC_PRT_NEXT(); + seq_printf(m, " Queue Limit:"); for (i = 0; i <= ADV_MAX_TID; i++) { if ((chip_scsi_id == i) || ((boardp->init_tidmask & ADV_TID_TO_TIDMASK(i)) == 0)) { @@ -3859,14 +3571,11 @@ static int asc_prt_adv_board_info(struct Scsi_Host *shost, char *cp, int cplen) AdvReadByteLram(iop_base, ASC_MC_NUMBER_OF_MAX_CMD + i, lrambyte); - len = asc_prt_line(cp, leftlen, " %X:%d", i, lrambyte); - ASC_PRT_NEXT(); + seq_printf(m, " %X:%d", i, lrambyte); } - len = asc_prt_line(cp, leftlen, "\n"); - ASC_PRT_NEXT(); + seq_printf(m, "\n"); - len = asc_prt_line(cp, leftlen, " Command Pending:"); - ASC_PRT_NEXT(); + seq_printf(m, " Command Pending:"); for (i = 0; i <= ADV_MAX_TID; i++) { if ((chip_scsi_id == i) || ((boardp->init_tidmask & ADV_TID_TO_TIDMASK(i)) == 0)) { @@ -3876,33 +3585,26 @@ static int asc_prt_adv_board_info(struct Scsi_Host *shost, char *cp, int cplen) AdvReadByteLram(iop_base, ASC_MC_NUMBER_OF_QUEUED_CMD + i, lrambyte); - len = asc_prt_line(cp, leftlen, " %X:%d", i, lrambyte); - ASC_PRT_NEXT(); + seq_printf(m, " %X:%d", i, lrambyte); } - len = asc_prt_line(cp, leftlen, "\n"); - ASC_PRT_NEXT(); + seq_printf(m, "\n"); AdvReadWordLram(iop_base, ASC_MC_WDTR_ABLE, wdtr_able); - len = asc_prt_line(cp, leftlen, " Wide Enabled:"); - ASC_PRT_NEXT(); + seq_printf(m, " Wide Enabled:"); for (i = 0; i <= ADV_MAX_TID; i++) { if ((chip_scsi_id == i) || ((boardp->init_tidmask & ADV_TID_TO_TIDMASK(i)) == 0)) { continue; } - len = asc_prt_line(cp, leftlen, " %X:%c", - i, - (wdtr_able & ADV_TID_TO_TIDMASK(i)) ? 'Y' : - 'N'); - ASC_PRT_NEXT(); + seq_printf(m, " %X:%c", + i, + (wdtr_able & ADV_TID_TO_TIDMASK(i)) ? 'Y' : 'N'); } - len = asc_prt_line(cp, leftlen, "\n"); - ASC_PRT_NEXT(); + seq_printf(m, "\n"); AdvReadWordLram(iop_base, ASC_MC_WDTR_DONE, wdtr_done); - len = asc_prt_line(cp, leftlen, " Transfer Bit Width:"); - ASC_PRT_NEXT(); + seq_printf(m, " Transfer Bit Width:"); for (i = 0; i <= ADV_MAX_TID; i++) { if ((chip_scsi_id == i) || ((boardp->init_tidmask & ADV_TID_TO_TIDMASK(i)) == 0)) { @@ -3913,37 +3615,30 @@ static int asc_prt_adv_board_info(struct Scsi_Host *shost, char *cp, int cplen) ASC_MC_DEVICE_HSHK_CFG_TABLE + (2 * i), lramword); - len = asc_prt_line(cp, leftlen, " %X:%d", - i, (lramword & 0x8000) ? 16 : 8); - ASC_PRT_NEXT(); + seq_printf(m, " %X:%d", + i, (lramword & 0x8000) ? 16 : 8); if ((wdtr_able & ADV_TID_TO_TIDMASK(i)) && (wdtr_done & ADV_TID_TO_TIDMASK(i)) == 0) { - len = asc_prt_line(cp, leftlen, "*"); - ASC_PRT_NEXT(); + seq_printf(m, "*"); renegotiate = 1; } } - len = asc_prt_line(cp, leftlen, "\n"); - ASC_PRT_NEXT(); + seq_printf(m, "\n"); AdvReadWordLram(iop_base, ASC_MC_SDTR_ABLE, sdtr_able); - len = asc_prt_line(cp, leftlen, " Synchronous Enabled:"); - ASC_PRT_NEXT(); + seq_printf(m, " Synchronous Enabled:"); for (i = 0; i <= ADV_MAX_TID; i++) { if ((chip_scsi_id == i) || ((boardp->init_tidmask & ADV_TID_TO_TIDMASK(i)) == 0)) { continue; } - len = asc_prt_line(cp, leftlen, " %X:%c", - i, - (sdtr_able & ADV_TID_TO_TIDMASK(i)) ? 'Y' : - 'N'); - ASC_PRT_NEXT(); + seq_printf(m, " %X:%c", + i, + (sdtr_able & ADV_TID_TO_TIDMASK(i)) ? 'Y' : 'N'); } - len = asc_prt_line(cp, leftlen, "\n"); - ASC_PRT_NEXT(); + seq_printf(m, "\n"); AdvReadWordLram(iop_base, ASC_MC_SDTR_DONE, sdtr_done); for (i = 0; i <= ADV_MAX_TID; i++) { @@ -3959,358 +3654,170 @@ static int asc_prt_adv_board_info(struct Scsi_Host *shost, char *cp, int cplen) continue; } - len = asc_prt_line(cp, leftlen, " %X:", i); - ASC_PRT_NEXT(); + seq_printf(m, " %X:", i); if ((lramword & 0x1F) == 0) { /* Check for REQ/ACK Offset 0. */ - len = asc_prt_line(cp, leftlen, " Asynchronous"); - ASC_PRT_NEXT(); + seq_printf(m, " Asynchronous"); } else { - len = - asc_prt_line(cp, leftlen, - " Transfer Period Factor: "); - ASC_PRT_NEXT(); + seq_printf(m, " Transfer Period Factor: "); if ((lramword & 0x1F00) == 0x1100) { /* 80 Mhz */ - len = - asc_prt_line(cp, leftlen, "9 (80.0 Mhz),"); - ASC_PRT_NEXT(); + seq_printf(m, "9 (80.0 Mhz),"); } else if ((lramword & 0x1F00) == 0x1000) { /* 40 Mhz */ - len = - asc_prt_line(cp, leftlen, "10 (40.0 Mhz),"); - ASC_PRT_NEXT(); + seq_printf(m, "10 (40.0 Mhz),"); } else { /* 20 Mhz or below. */ period = (((lramword >> 8) * 25) + 50) / 4; if (period == 0) { /* Should never happen. */ - len = - asc_prt_line(cp, leftlen, - "%d (? Mhz), "); - ASC_PRT_NEXT(); + seq_printf(m, "%d (? Mhz), "); } else { - len = asc_prt_line(cp, leftlen, - "%d (%d.%d Mhz),", - period, 250 / period, - ASC_TENTHS(250, - period)); - ASC_PRT_NEXT(); + seq_printf(m, + "%d (%d.%d Mhz),", + period, 250 / period, + ASC_TENTHS(250, period)); } } - len = asc_prt_line(cp, leftlen, " REQ/ACK Offset: %d", - lramword & 0x1F); - ASC_PRT_NEXT(); + seq_printf(m, " REQ/ACK Offset: %d", + lramword & 0x1F); } if ((sdtr_done & ADV_TID_TO_TIDMASK(i)) == 0) { - len = asc_prt_line(cp, leftlen, "*\n"); + seq_printf(m, "*\n"); renegotiate = 1; } else { - len = asc_prt_line(cp, leftlen, "\n"); + seq_printf(m, "\n"); } - ASC_PRT_NEXT(); } if (renegotiate) { - len = asc_prt_line(cp, leftlen, - " * = Re-negotiation pending before next command.\n"); - ASC_PRT_NEXT(); + seq_printf(m, + " * = Re-negotiation pending before next command.\n"); } - - return totlen; -} - -/* - * asc_proc_copy() - * - * Copy proc information to a read buffer taking into account the current - * read offset in the file and the remaining space in the read buffer. - */ -static int -asc_proc_copy(off_t advoffset, off_t offset, char *curbuf, int leftlen, - char *cp, int cplen) -{ - int cnt = 0; - - ASC_DBG(2, "offset %d, advoffset %d, cplen %d\n", - (unsigned)offset, (unsigned)advoffset, cplen); - if (offset <= advoffset) { - /* Read offset below current offset, copy everything. */ - cnt = min(cplen, leftlen); - ASC_DBG(2, "curbuf 0x%lx, cp 0x%lx, cnt %d\n", - (ulong)curbuf, (ulong)cp, cnt); - memcpy(curbuf, cp, cnt); - } else if (offset < advoffset + cplen) { - /* Read offset within current range, partial copy. */ - cnt = (advoffset + cplen) - offset; - cp = (cp + cplen) - cnt; - cnt = min(cnt, leftlen); - ASC_DBG(2, "curbuf 0x%lx, cp 0x%lx, cnt %d\n", - (ulong)curbuf, (ulong)cp, cnt); - memcpy(curbuf, cp, cnt); - } - return cnt; } #ifdef ADVANSYS_STATS /* * asc_prt_board_stats() - * - * Note: no single line should be greater than ASC_PRTLINE_SIZE, - * cf. asc_prt_line(). - * - * Return the number of characters copied into 'cp'. No more than - * 'cplen' characters will be copied to 'cp'. */ -static int asc_prt_board_stats(struct Scsi_Host *shost, char *cp, int cplen) +static void asc_prt_board_stats(struct seq_file *m, struct Scsi_Host *shost) { struct asc_board *boardp = shost_priv(shost); struct asc_stats *s = &boardp->asc_stats; - int leftlen = cplen; - int len, totlen = 0; + seq_printf(m, + "\nLinux Driver Statistics for AdvanSys SCSI Host %d:\n", + shost->host_no); - len = asc_prt_line(cp, leftlen, - "\nLinux Driver Statistics for AdvanSys SCSI Host %d:\n", - shost->host_no); - ASC_PRT_NEXT(); + seq_printf(m, + " queuecommand %lu, reset %lu, biosparam %lu, interrupt %lu\n", + s->queuecommand, s->reset, s->biosparam, + s->interrupt); - len = asc_prt_line(cp, leftlen, - " queuecommand %lu, reset %lu, biosparam %lu, interrupt %lu\n", - s->queuecommand, s->reset, s->biosparam, - s->interrupt); - ASC_PRT_NEXT(); + seq_printf(m, + " callback %lu, done %lu, build_error %lu, build_noreq %lu, build_nosg %lu\n", + s->callback, s->done, s->build_error, + s->adv_build_noreq, s->adv_build_nosg); - len = asc_prt_line(cp, leftlen, - " callback %lu, done %lu, build_error %lu, build_noreq %lu, build_nosg %lu\n", - s->callback, s->done, s->build_error, - s->adv_build_noreq, s->adv_build_nosg); - ASC_PRT_NEXT(); - - len = asc_prt_line(cp, leftlen, - " exe_noerror %lu, exe_busy %lu, exe_error %lu, exe_unknown %lu\n", - s->exe_noerror, s->exe_busy, s->exe_error, - s->exe_unknown); - ASC_PRT_NEXT(); + seq_printf(m, + " exe_noerror %lu, exe_busy %lu, exe_error %lu, exe_unknown %lu\n", + s->exe_noerror, s->exe_busy, s->exe_error, + s->exe_unknown); /* * Display data transfer statistics. */ if (s->xfer_cnt > 0) { - len = asc_prt_line(cp, leftlen, " xfer_cnt %lu, xfer_elem %lu, ", - s->xfer_cnt, s->xfer_elem); - ASC_PRT_NEXT(); + seq_printf(m, " xfer_cnt %lu, xfer_elem %lu, ", + s->xfer_cnt, s->xfer_elem); - len = asc_prt_line(cp, leftlen, "xfer_bytes %lu.%01lu kb\n", - s->xfer_sect / 2, ASC_TENTHS(s->xfer_sect, 2)); - ASC_PRT_NEXT(); + seq_printf(m, "xfer_bytes %lu.%01lu kb\n", + s->xfer_sect / 2, ASC_TENTHS(s->xfer_sect, 2)); /* Scatter gather transfer statistics */ - len = asc_prt_line(cp, leftlen, " avg_num_elem %lu.%01lu, ", - s->xfer_elem / s->xfer_cnt, - ASC_TENTHS(s->xfer_elem, s->xfer_cnt)); - ASC_PRT_NEXT(); + seq_printf(m, " avg_num_elem %lu.%01lu, ", + s->xfer_elem / s->xfer_cnt, + ASC_TENTHS(s->xfer_elem, s->xfer_cnt)); - len = asc_prt_line(cp, leftlen, "avg_elem_size %lu.%01lu kb, ", - (s->xfer_sect / 2) / s->xfer_elem, - ASC_TENTHS((s->xfer_sect / 2), s->xfer_elem)); - ASC_PRT_NEXT(); + seq_printf(m, "avg_elem_size %lu.%01lu kb, ", + (s->xfer_sect / 2) / s->xfer_elem, + ASC_TENTHS((s->xfer_sect / 2), s->xfer_elem)); - len = asc_prt_line(cp, leftlen, "avg_xfer_size %lu.%01lu kb\n", - (s->xfer_sect / 2) / s->xfer_cnt, - ASC_TENTHS((s->xfer_sect / 2), s->xfer_cnt)); - ASC_PRT_NEXT(); + seq_printf(m, "avg_xfer_size %lu.%01lu kb\n", + (s->xfer_sect / 2) / s->xfer_cnt, + ASC_TENTHS((s->xfer_sect / 2), s->xfer_cnt)); } - - return totlen; } #endif /* ADVANSYS_STATS */ /* - * advansys_proc_info() - /proc/scsi/advansys/{0,1,2,3,...} + * advansys_show_info() - /proc/scsi/advansys/{0,1,2,3,...} * - * *buffer: I/O buffer - * **start: if inout == FALSE pointer into buffer where user read should start - * offset: current offset into a /proc/scsi/advansys/[0...] file - * length: length of buffer - * hostno: Scsi_Host host_no - * inout: TRUE - user is writing; FALSE - user is reading + * m: seq_file to print into + * shost: Scsi_Host * * Return the number of bytes read from or written to a * /proc/scsi/advansys/[0...] file. - * - * Note: This function uses the per board buffer 'prtbuf' which is - * allocated when the board is initialized in advansys_detect(). The - * buffer is ASC_PRTBUF_SIZE bytes. The function asc_proc_copy() is - * used to write to the buffer. The way asc_proc_copy() is written - * if 'prtbuf' is too small it will not be overwritten. Instead the - * user just won't get all the available statistics. */ static int -advansys_proc_info(struct Scsi_Host *shost, char *buffer, char **start, - off_t offset, int length, int inout) +advansys_show_info(struct seq_file *m, struct Scsi_Host *shost) { struct asc_board *boardp = shost_priv(shost); - char *cp; - int cplen; - int cnt; - int totcnt; - int leftlen; - char *curbuf; - off_t advoffset; ASC_DBG(1, "begin\n"); - /* - * User write not supported. - */ - if (inout == TRUE) - return -ENOSYS; - /* * User read of /proc/scsi/advansys/[0...] file. */ - /* Copy read data starting at the beginning of the buffer. */ - *start = buffer; - curbuf = buffer; - advoffset = 0; - totcnt = 0; - leftlen = length; - /* * Get board configuration information. * * advansys_info() returns the board string from its own static buffer. */ - cp = (char *)advansys_info(shost); - strcat(cp, "\n"); - cplen = strlen(cp); /* Copy board information. */ - cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, cplen); - totcnt += cnt; - leftlen -= cnt; - if (leftlen == 0) { - ASC_DBG(1, "totcnt %d\n", totcnt); - return totcnt; - } - advoffset += cplen; - curbuf += cnt; - + seq_printf(m, "%s\n", (char *)advansys_info(shost)); /* * Display Wide Board BIOS Information. */ - if (!ASC_NARROW_BOARD(boardp)) { - cp = boardp->prtbuf; - cplen = asc_prt_adv_bios(shost, cp, ASC_PRTBUF_SIZE); - BUG_ON(cplen >= ASC_PRTBUF_SIZE); - cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, - cplen); - totcnt += cnt; - leftlen -= cnt; - if (leftlen == 0) { - ASC_DBG(1, "totcnt %d\n", totcnt); - return totcnt; - } - advoffset += cplen; - curbuf += cnt; - } + if (!ASC_NARROW_BOARD(boardp)) + asc_prt_adv_bios(m, shost); /* * Display driver information for each device attached to the board. */ - cp = boardp->prtbuf; - cplen = asc_prt_board_devices(shost, cp, ASC_PRTBUF_SIZE); - BUG_ON(cplen >= ASC_PRTBUF_SIZE); - cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, cplen); - totcnt += cnt; - leftlen -= cnt; - if (leftlen == 0) { - ASC_DBG(1, "totcnt %d\n", totcnt); - return totcnt; - } - advoffset += cplen; - curbuf += cnt; + asc_prt_board_devices(m, shost); /* * Display EEPROM configuration for the board. */ - cp = boardp->prtbuf; - if (ASC_NARROW_BOARD(boardp)) { - cplen = asc_prt_asc_board_eeprom(shost, cp, ASC_PRTBUF_SIZE); - } else { - cplen = asc_prt_adv_board_eeprom(shost, cp, ASC_PRTBUF_SIZE); - } - BUG_ON(cplen >= ASC_PRTBUF_SIZE); - cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, cplen); - totcnt += cnt; - leftlen -= cnt; - if (leftlen == 0) { - ASC_DBG(1, "totcnt %d\n", totcnt); - return totcnt; - } - advoffset += cplen; - curbuf += cnt; + if (ASC_NARROW_BOARD(boardp)) + asc_prt_asc_board_eeprom(m, shost); + else + asc_prt_adv_board_eeprom(m, shost); /* * Display driver configuration and information for the board. */ - cp = boardp->prtbuf; - cplen = asc_prt_driver_conf(shost, cp, ASC_PRTBUF_SIZE); - BUG_ON(cplen >= ASC_PRTBUF_SIZE); - cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, cplen); - totcnt += cnt; - leftlen -= cnt; - if (leftlen == 0) { - ASC_DBG(1, "totcnt %d\n", totcnt); - return totcnt; - } - advoffset += cplen; - curbuf += cnt; + asc_prt_driver_conf(m, shost); #ifdef ADVANSYS_STATS /* * Display driver statistics for the board. */ - cp = boardp->prtbuf; - cplen = asc_prt_board_stats(shost, cp, ASC_PRTBUF_SIZE); - BUG_ON(cplen >= ASC_PRTBUF_SIZE); - cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, cplen); - totcnt += cnt; - leftlen -= cnt; - if (leftlen == 0) { - ASC_DBG(1, "totcnt %d\n", totcnt); - return totcnt; - } - advoffset += cplen; - curbuf += cnt; + asc_prt_board_stats(m, shost); #endif /* ADVANSYS_STATS */ /* * Display Asc Library dynamic configuration information * for the board. */ - cp = boardp->prtbuf; - if (ASC_NARROW_BOARD(boardp)) { - cplen = asc_prt_asc_board_info(shost, cp, ASC_PRTBUF_SIZE); - } else { - cplen = asc_prt_adv_board_info(shost, cp, ASC_PRTBUF_SIZE); - } - BUG_ON(cplen >= ASC_PRTBUF_SIZE); - cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, cplen); - totcnt += cnt; - leftlen -= cnt; - if (leftlen == 0) { - ASC_DBG(1, "totcnt %d\n", totcnt); - return totcnt; - } - advoffset += cplen; - curbuf += cnt; - - ASC_DBG(1, "totcnt %d\n", totcnt); - - return totcnt; + if (ASC_NARROW_BOARD(boardp)) + asc_prt_asc_board_info(m, shost); + else + asc_prt_adv_board_info(m, shost); + return 0; } #endif /* CONFIG_PROC_FS */ @@ -11743,7 +11250,7 @@ static int AdvInitGetConfig(struct pci_dev *pdev, struct Scsi_Host *shost) static struct scsi_host_template advansys_template = { .proc_name = DRV_NAME, #ifdef CONFIG_PROC_FS - .proc_info = advansys_proc_info, + .show_info = advansys_show_info, #endif .name = DRV_NAME, .info = advansys_info, @@ -11939,20 +11446,6 @@ static int advansys_board_found(struct Scsi_Host *shost, unsigned int iop, #endif /* CONFIG_PCI */ } -#ifdef CONFIG_PROC_FS - /* - * Allocate buffer for printing information from - * /proc/scsi/advansys/[0...]. - */ - boardp->prtbuf = kmalloc(ASC_PRTBUF_SIZE, GFP_KERNEL); - if (!boardp->prtbuf) { - shost_printk(KERN_ERR, shost, "kmalloc(%d) returned NULL\n", - ASC_PRTBUF_SIZE); - ret = -ENOMEM; - goto err_unmap; - } -#endif /* CONFIG_PROC_FS */ - if (ASC_NARROW_BOARD(boardp)) { /* * Set the board bus type and PCI IRQ before @@ -12010,7 +11503,7 @@ static int advansys_board_found(struct Scsi_Host *shost, unsigned int iop, } if (ret) - goto err_free_proc; + goto err_unmap; /* * Save the EEPROM configuration so that it can be displayed @@ -12055,7 +11548,7 @@ static int advansys_board_found(struct Scsi_Host *shost, unsigned int iop, ASC_DBG(2, "AscInitSetConfig()\n"); ret = AscInitSetConfig(pdev, shost) ? -ENODEV : 0; if (ret) - goto err_free_proc; + goto err_unmap; } else { ADVEEP_3550_CONFIG *ep_3550; ADVEEP_38C0800_CONFIG *ep_38C0800; @@ -12290,7 +11783,7 @@ static int advansys_board_found(struct Scsi_Host *shost, unsigned int iop, shost_printk(KERN_ERR, shost, "request_dma() " "%d failed %d\n", shost->dma_channel, ret); - goto err_free_proc; + goto err_unmap; } AscEnableIsaDma(shost->dma_channel); } @@ -12371,8 +11864,6 @@ static int advansys_board_found(struct Scsi_Host *shost, unsigned int iop, if (shost->dma_channel != NO_ISA_DMA) free_dma(shost->dma_channel); #endif - err_free_proc: - kfree(boardp->prtbuf); err_unmap: if (boardp->ioremap_addr) iounmap(boardp->ioremap_addr); @@ -12406,7 +11897,6 @@ static int advansys_release(struct Scsi_Host *shost) iounmap(board->ioremap_addr); advansys_wide_free_mem(board); } - kfree(board->prtbuf); scsi_host_put(shost); ASC_DBG(1, "end\n"); return 0; From 31491e1ac425edc6b80a670a71ac8d2dfdd78417 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 31 Mar 2013 03:04:13 -0400 Subject: [PATCH 075/204] advansys: fix buggered formats - unsigned long != u32 on 64bit asc_prt_line() had been hiding several places where formats had not matched the argument types. The previous commit has finally made them visible... Signed-off-by: Al Viro --- drivers/scsi/advansys.c | 26 +++++++++++++------------- 1 file changed, 13 insertions(+), 13 deletions(-) diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index 9029a208b9c3..c67e401954c5 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -3345,7 +3345,7 @@ static void asc_prt_driver_conf(struct seq_file *m, struct Scsi_Host *shost) shost->host_no); seq_printf(m, - " host_busy %u, last_reset %u, max_id %u, max_lun %u, max_channel %u\n", + " host_busy %u, last_reset %lu, max_id %u, max_lun %u, max_channel %u\n", shost->host_busy, shost->last_reset, shost->max_id, shost->max_lun, shost->max_channel); @@ -3359,11 +3359,11 @@ static void asc_prt_driver_conf(struct seq_file *m, struct Scsi_Host *shost) shost->unchecked_isa_dma, shost->use_clustering); seq_printf(m, - " flags 0x%x, last_reset 0x%x, jiffies 0x%x, asc_n_io_port 0x%x\n", + " flags 0x%x, last_reset 0x%lx, jiffies 0x%lx, asc_n_io_port 0x%x\n", boardp->flags, boardp->last_reset, jiffies, boardp->asc_n_io_port); - seq_printf(m, " io_port 0x%x\n", shost->io_port); + seq_printf(m, " io_port 0x%lx\n", shost->io_port); if (ASC_NARROW_BOARD(boardp)) { chip_scsi_id = boardp->dvc_cfg.asc_dvc_cfg.chip_scsi_id; @@ -3539,7 +3539,7 @@ static void asc_prt_adv_board_info(struct seq_file *m, struct Scsi_Host *shost) seq_printf(m, " iop_base 0x%lx, cable_detect: %X, err_code %u\n", - v->iop_base, + (unsigned long)v->iop_base, AdvReadWordRegister(iop_base,IOPW_SCSI_CFG1) & CABLE_DETECT, v->err_code); @@ -3670,7 +3670,7 @@ static void asc_prt_adv_board_info(struct seq_file *m, struct Scsi_Host *shost) period = (((lramword >> 8) * 25) + 50) / 4; if (period == 0) { /* Should never happen. */ - seq_printf(m, "%d (? Mhz), "); + seq_printf(m, "%d (? Mhz), ", period); } else { seq_printf(m, "%d (%d.%d Mhz),", @@ -3711,17 +3711,17 @@ static void asc_prt_board_stats(struct seq_file *m, struct Scsi_Host *shost) shost->host_no); seq_printf(m, - " queuecommand %lu, reset %lu, biosparam %lu, interrupt %lu\n", + " queuecommand %u, reset %u, biosparam %u, interrupt %u\n", s->queuecommand, s->reset, s->biosparam, s->interrupt); seq_printf(m, - " callback %lu, done %lu, build_error %lu, build_noreq %lu, build_nosg %lu\n", + " callback %u, done %u, build_error %u, build_noreq %u, build_nosg %u\n", s->callback, s->done, s->build_error, s->adv_build_noreq, s->adv_build_nosg); seq_printf(m, - " exe_noerror %lu, exe_busy %lu, exe_error %lu, exe_unknown %lu\n", + " exe_noerror %u, exe_busy %u, exe_error %u, exe_unknown %u\n", s->exe_noerror, s->exe_busy, s->exe_error, s->exe_unknown); @@ -3729,22 +3729,22 @@ static void asc_prt_board_stats(struct seq_file *m, struct Scsi_Host *shost) * Display data transfer statistics. */ if (s->xfer_cnt > 0) { - seq_printf(m, " xfer_cnt %lu, xfer_elem %lu, ", + seq_printf(m, " xfer_cnt %u, xfer_elem %u, ", s->xfer_cnt, s->xfer_elem); - seq_printf(m, "xfer_bytes %lu.%01lu kb\n", + seq_printf(m, "xfer_bytes %u.%01u kb\n", s->xfer_sect / 2, ASC_TENTHS(s->xfer_sect, 2)); /* Scatter gather transfer statistics */ - seq_printf(m, " avg_num_elem %lu.%01lu, ", + seq_printf(m, " avg_num_elem %u.%01u, ", s->xfer_elem / s->xfer_cnt, ASC_TENTHS(s->xfer_elem, s->xfer_cnt)); - seq_printf(m, "avg_elem_size %lu.%01lu kb, ", + seq_printf(m, "avg_elem_size %u.%01u kb, ", (s->xfer_sect / 2) / s->xfer_elem, ASC_TENTHS((s->xfer_sect / 2), s->xfer_elem)); - seq_printf(m, "avg_xfer_size %lu.%01lu kb\n", + seq_printf(m, "avg_xfer_size %u.%01u kb\n", (s->xfer_sect / 2) / s->xfer_cnt, ASC_TENTHS((s->xfer_sect / 2), s->xfer_cnt)); } From 275084cbff47f8a3f4b6f86464d08da6691424db Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 31 Mar 2013 03:12:15 -0400 Subject: [PATCH 076/204] aha152x: switch to ->show_info() Signed-off-by: Al Viro --- drivers/scsi/aha152x.c | 61 +++++++++--------------------------------- 1 file changed, 12 insertions(+), 49 deletions(-) diff --git a/drivers/scsi/aha152x.c b/drivers/scsi/aha152x.c index a284be17699f..3f7b6fee0a74 100644 --- a/drivers/scsi/aha152x.c +++ b/drivers/scsi/aha152x.c @@ -2977,11 +2977,10 @@ static void show_queues(struct Scsi_Host *shpnt) } #undef SPRINTF -#define SPRINTF(args...) pos += sprintf(pos, ## args) +#define SPRINTF(args...) seq_printf(m, ##args) -static int get_command(char *pos, Scsi_Cmnd * ptr) +static void get_command(struct seq_file *m, Scsi_Cmnd * ptr) { - char *start = pos; int i; SPRINTF("%p: target=%d; lun=%d; cmnd=( ", @@ -3011,13 +3010,10 @@ static int get_command(char *pos, Scsi_Cmnd * ptr) if (ptr->SCp.phase & syncneg) SPRINTF("syncneg|"); SPRINTF("; next=0x%p\n", SCNEXT(ptr)); - - return (pos - start); } -static int get_ports(struct Scsi_Host *shpnt, char *pos) +static void get_ports(struct seq_file *m, struct Scsi_Host *shpnt) { - char *start = pos; int s; SPRINTF("\n%s: %s(%s) ", CURRENT_SC ? "on bus" : "waiting", states[STATE].name, states[PREVSTATE].name); @@ -3273,11 +3269,9 @@ static int get_ports(struct Scsi_Host *shpnt, char *pos) if (s & ENREQINIT) SPRINTF("ENREQINIT "); SPRINTF(")\n"); - - return (pos - start); } -static int aha152x_set_info(char *buffer, int length, struct Scsi_Host *shpnt) +static int aha152x_set_info(struct Scsi_Host *shpnt, char *buffer, int length) { if(!shpnt || !buffer || length<8 || strncmp("aha152x ", buffer, 8)!=0) return -EINVAL; @@ -3320,26 +3314,11 @@ static int aha152x_set_info(char *buffer, int length, struct Scsi_Host *shpnt) return length; } -#undef SPRINTF -#define SPRINTF(args...) \ - do { if(pos < buffer + length) pos += sprintf(pos, ## args); } while(0) - -static int aha152x_proc_info(struct Scsi_Host *shpnt, char *buffer, char **start, - off_t offset, int length, int inout) +static int aha152x_show_info(struct seq_file *m, struct Scsi_Host *shpnt) { int i; - char *pos = buffer; Scsi_Cmnd *ptr; unsigned long flags; - int thislength; - - DPRINTK(debug_procinfo, - KERN_DEBUG "aha152x_proc_info: buffer=%p offset=%ld length=%d hostno=%d inout=%d\n", - buffer, offset, length, shpnt->host_no, inout); - - - if (inout) - return aha152x_set_info(buffer, length, shpnt); SPRINTF(AHA152X_REVID "\n"); @@ -3392,25 +3371,25 @@ static int aha152x_proc_info(struct Scsi_Host *shpnt, char *buffer, char **start if (ISSUE_SC) { SPRINTF("not yet issued commands:\n"); for (ptr = ISSUE_SC; ptr; ptr = SCNEXT(ptr)) - pos += get_command(pos, ptr); + get_command(m, ptr); } else SPRINTF("no not yet issued commands\n"); DO_UNLOCK(flags); if (CURRENT_SC) { SPRINTF("current command:\n"); - pos += get_command(pos, CURRENT_SC); + get_command(m, CURRENT_SC); } else SPRINTF("no current command\n"); if (DISCONNECTED_SC) { SPRINTF("disconnected commands:\n"); for (ptr = DISCONNECTED_SC; ptr; ptr = SCNEXT(ptr)) - pos += get_command(pos, ptr); + get_command(m, ptr); } else SPRINTF("no disconnected commands\n"); - pos += get_ports(shpnt, pos); + get_ports(m, shpnt); #if defined(AHA152X_STAT) SPRINTF("statistics:\n" @@ -3440,24 +3419,7 @@ static int aha152x_proc_info(struct Scsi_Host *shpnt, char *buffer, char **start HOSTDATA(shpnt)->time[i]); } #endif - - DPRINTK(debug_procinfo, KERN_DEBUG "aha152x_proc_info: pos=%p\n", pos); - - thislength = pos - (buffer + offset); - DPRINTK(debug_procinfo, KERN_DEBUG "aha152x_proc_info: length=%d thislength=%d\n", length, thislength); - - if(thislength<0) { - DPRINTK(debug_procinfo, KERN_DEBUG "aha152x_proc_info: output too short\n"); - *start = NULL; - return 0; - } - - thislength = thislength Date: Sun, 31 Mar 2013 03:15:00 -0400 Subject: [PATCH 077/204] aha1740: switch to ->show_info() Signed-off-by: Al Viro --- drivers/scsi/aha1740.c | 29 +++++------------------------ 1 file changed, 5 insertions(+), 24 deletions(-) diff --git a/drivers/scsi/aha1740.c b/drivers/scsi/aha1740.c index df775e6ba579..5f3101797c93 100644 --- a/drivers/scsi/aha1740.c +++ b/drivers/scsi/aha1740.c @@ -106,33 +106,14 @@ static inline dma_addr_t ecb_cpu_to_dma (struct Scsi_Host *host, void *cpu) return hdata->ecb_dma_addr + offset; } -static int aha1740_proc_info(struct Scsi_Host *shpnt, char *buffer, - char **start, off_t offset, - int length, int inout) +static int aha1740_show_info(struct seq_file *m, struct Scsi_Host *shpnt) { - int len; - struct aha1740_hostdata *host; - - if (inout) - return-ENOSYS; - - host = HOSTDATA(shpnt); - - len = sprintf(buffer, "aha174x at IO:%lx, IRQ %d, SLOT %d.\n" + struct aha1740_hostdata *host = HOSTDATA(shpnt); + seq_printf(m, "aha174x at IO:%lx, IRQ %d, SLOT %d.\n" "Extended translation %sabled.\n", shpnt->io_port, shpnt->irq, host->edev->slot, host->translation ? "en" : "dis"); - - if (offset > len) { - *start = buffer; - return 0; - } - - *start = buffer + offset; - len -= offset; - if (len > length) - len = length; - return len; + return 0; } static int aha1740_makecode(unchar *sense, unchar *status) @@ -556,7 +537,7 @@ static int aha1740_eh_abort_handler (Scsi_Cmnd *dummy) static struct scsi_host_template aha1740_template = { .module = THIS_MODULE, .proc_name = "aha1740", - .proc_info = aha1740_proc_info, + .show_info = aha1740_show_info, .name = "Adaptec 174x (EISA)", .queuecommand = aha1740_queuecommand, .bios_param = aha1740_biosparam, From 8c986544562b667766f42e08a206f6c2e21d272c Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 31 Mar 2013 03:18:35 -0400 Subject: [PATCH 078/204] eata_pio: switch to ->show_info() Signed-off-by: Al Viro --- drivers/scsi/eata_pio.c | 56 ++++++++--------------------------------- 1 file changed, 10 insertions(+), 46 deletions(-) diff --git a/drivers/scsi/eata_pio.c b/drivers/scsi/eata_pio.c index d5f8362335d3..356def44ce58 100644 --- a/drivers/scsi/eata_pio.c +++ b/drivers/scsi/eata_pio.c @@ -92,58 +92,22 @@ static unsigned long queue_counter; static struct scsi_host_template driver_template; -/* - * eata_proc_info - * inout : decides on the direction of the dataflow and the meaning of the - * variables - * buffer: If inout==FALSE data is being written to it else read from it - * *start: If inout==FALSE start of the valid data in the buffer - * offset: If inout==FALSE offset from the beginning of the imaginary file - * from which we start writing into the buffer - * length: If inout==FALSE max number of bytes to be written into the buffer - * else number of bytes in the buffer - */ -static int eata_pio_proc_info(struct Scsi_Host *shost, char *buffer, char **start, off_t offset, - int length, int rw) +static int eata_pio_show_info(struct seq_file *m, struct Scsi_Host *shost) { - int len = 0; - off_t begin = 0, pos = 0; - - if (rw) - return -ENOSYS; - - len += sprintf(buffer+len, "EATA (Extended Attachment) PIO driver version: " + seq_printf(m, "EATA (Extended Attachment) PIO driver version: " "%d.%d%s\n",VER_MAJOR, VER_MINOR, VER_SUB); - len += sprintf(buffer + len, "queued commands: %10ld\n" + seq_printf(m, "queued commands: %10ld\n" "processed interrupts:%10ld\n", queue_counter, int_counter); - len += sprintf(buffer + len, "\nscsi%-2d: HBA %.10s\n", + seq_printf(m, "\nscsi%-2d: HBA %.10s\n", shost->host_no, SD(shost)->name); - len += sprintf(buffer + len, "Firmware revision: v%s\n", + seq_printf(m, "Firmware revision: v%s\n", SD(shost)->revision); - len += sprintf(buffer + len, "IO: PIO\n"); - len += sprintf(buffer + len, "Base IO : %#.4x\n", (u32) shost->base); - len += sprintf(buffer + len, "Host Bus: %s\n", + seq_printf(m, "IO: PIO\n"); + seq_printf(m, "Base IO : %#.4x\n", (u32) shost->base); + seq_printf(m, "Host Bus: %s\n", (SD(shost)->bustype == 'P')?"PCI ": (SD(shost)->bustype == 'E')?"EISA":"ISA "); - - pos = begin + len; - - if (pos < offset) { - len = 0; - begin = pos; - } - if (pos > offset + length) - goto stop_output; - -stop_output: - DBG(DBG_PROC, printk("2pos: %ld offset: %ld len: %d\n", pos, offset, len)); - *start = buffer + (offset - begin); /* Start of wanted data */ - len -= (offset - begin); /* Start slop */ - if (len > length) - len = length; /* Ending slop */ - DBG(DBG_PROC, printk("3pos: %ld offset: %ld len: %d\n", pos, offset, len)); - - return len; + return 0; } static int eata_pio_release(struct Scsi_Host *sh) @@ -985,7 +949,7 @@ static int eata_pio_detect(struct scsi_host_template *tpnt) static struct scsi_host_template driver_template = { .proc_name = "eata_pio", .name = "EATA (Extended Attachment) PIO driver", - .proc_info = eata_pio_proc_info, + .show_info = eata_pio_show_info, .detect = eata_pio_detect, .release = eata_pio_release, .queuecommand = eata_pio_queue, From ff98f7ce0ec89a3de50a1920eb8a223bf0a3a6f2 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 31 Mar 2013 03:21:50 -0400 Subject: [PATCH 079/204] dpt_i2o: switch to ->show_info() Signed-off-by: Al Viro --- drivers/scsi/dpt_i2o.c | 102 +++++------------------------------------ 1 file changed, 12 insertions(+), 90 deletions(-) diff --git a/drivers/scsi/dpt_i2o.c b/drivers/scsi/dpt_i2o.c index b6e2700ec1c6..19e1b422260a 100644 --- a/drivers/scsi/dpt_i2o.c +++ b/drivers/scsi/dpt_i2o.c @@ -553,36 +553,14 @@ static const char *adpt_info(struct Scsi_Host *host) return (char *) (pHba->detail); } -static int adpt_proc_info(struct Scsi_Host *host, char *buffer, char **start, off_t offset, - int length, int inout) +static int adpt_show_info(struct seq_file *m, struct Scsi_Host *host) { struct adpt_device* d; int id; int chan; - int len = 0; - int begin = 0; - int pos = 0; adpt_hba* pHba; int unit; - *start = buffer; - if (inout == TRUE) { - /* - * The user has done a write and wants us to take the - * data in the buffer and do something with it. - * proc_scsiwrite calls us with inout = 1 - * - * Read data from buffer (writing to us) - NOT SUPPORTED - */ - return -EINVAL; - } - - /* - * inout = 0 means the user has done a read and wants information - * returned, so we write information about the cards into the buffer - * proc_scsiread() calls us with inout = 0 - */ - // Find HBA (host bus adapter) we are looking for mutex_lock(&adpt_configuration_lock); for (pHba = hba_chain; pHba; pHba = pHba->next) { @@ -596,86 +574,30 @@ static int adpt_proc_info(struct Scsi_Host *host, char *buffer, char **start, of } host = pHba->host; - len = sprintf(buffer , "Adaptec I2O RAID Driver Version: %s\n\n", DPT_I2O_VERSION); - len += sprintf(buffer+len, "%s\n", pHba->detail); - len += sprintf(buffer+len, "SCSI Host=scsi%d Control Node=/dev/%s irq=%d\n", + seq_printf(m, "Adaptec I2O RAID Driver Version: %s\n\n", DPT_I2O_VERSION); + seq_printf(m, "%s\n", pHba->detail); + seq_printf(m, "SCSI Host=scsi%d Control Node=/dev/%s irq=%d\n", pHba->host->host_no, pHba->name, host->irq); - len += sprintf(buffer+len, "\tpost fifo size = %d\n\treply fifo size = %d\n\tsg table size = %d\n\n", + seq_printf(m, "\tpost fifo size = %d\n\treply fifo size = %d\n\tsg table size = %d\n\n", host->can_queue, (int) pHba->reply_fifo_size , host->sg_tablesize); - pos = begin + len; - - /* CHECKPOINT */ - if(pos > offset + length) { - goto stop_output; - } - if(pos <= offset) { - /* - * If we haven't even written to where we last left - * off (the last time we were called), reset the - * beginning pointer. - */ - len = 0; - begin = pos; - } - len += sprintf(buffer+len, "Devices:\n"); + seq_printf(m, "Devices:\n"); for(chan = 0; chan < MAX_CHANNEL; chan++) { for(id = 0; id < MAX_ID; id++) { d = pHba->channel[chan].device[id]; - while(d){ - len += sprintf(buffer+len,"\t%-24.24s", d->pScsi_dev->vendor); - len += sprintf(buffer+len," Rev: %-8.8s\n", d->pScsi_dev->rev); - pos = begin + len; - - - /* CHECKPOINT */ - if(pos > offset + length) { - goto stop_output; - } - if(pos <= offset) { - len = 0; - begin = pos; - } + while(d) { + seq_printf(m,"\t%-24.24s", d->pScsi_dev->vendor); + seq_printf(m," Rev: %-8.8s\n", d->pScsi_dev->rev); unit = d->pI2o_dev->lct_data.tid; - len += sprintf(buffer+len, "\tTID=%d, (Channel=%d, Target=%d, Lun=%d) (%s)\n\n", + seq_printf(m, "\tTID=%d, (Channel=%d, Target=%d, Lun=%d) (%s)\n\n", unit, (int)d->scsi_channel, (int)d->scsi_id, (int)d->scsi_lun, scsi_device_online(d->pScsi_dev)? "online":"offline"); - pos = begin + len; - - /* CHECKPOINT */ - if(pos > offset + length) { - goto stop_output; - } - if(pos <= offset) { - len = 0; - begin = pos; - } - d = d->next_lun; } } } - - /* - * begin is where we last checked our position with regards to offset - * begin is always less than offset. len is relative to begin. It - * is the number of bytes written past begin - * - */ -stop_output: - /* stop the output and calculate the correct length */ - *(buffer + len) = '\0'; - - *start = buffer + (offset - begin); /* Start of wanted data */ - len -= (offset - begin); - if(len > length) { - len = length; - } else if(len < 0){ - len = 0; - **start = '\0'; - } - return len; + return 0; } /* @@ -3639,7 +3561,7 @@ static struct scsi_host_template driver_template = { .module = THIS_MODULE, .name = "dpt_i2o", .proc_name = "dpt_i2o", - .proc_info = adpt_proc_info, + .show_info = adpt_show_info, .info = adpt_info, .queuecommand = adpt_queue, .eh_abort_handler = adpt_abort, From d32812ae4b94a306e84cfbfbfeecda4ba3d1ba0f Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 31 Mar 2013 03:24:12 -0400 Subject: [PATCH 080/204] dc395x: switch to ->show_info() Signed-off-by: Al Viro --- drivers/scsi/dc395x.c | 20 ++++---------------- 1 file changed, 4 insertions(+), 16 deletions(-) diff --git a/drivers/scsi/dc395x.c b/drivers/scsi/dc395x.c index fed486bfd3f4..694e13c45dfd 100644 --- a/drivers/scsi/dc395x.c +++ b/drivers/scsi/dc395x.c @@ -4616,26 +4616,21 @@ static void adapter_uninit(struct AdapterCtlBlk *acb) #undef SPRINTF -#define SPRINTF(args...) pos += sprintf(pos, args) +#define SPRINTF(args...) seq_printf(m,##args) #undef YESNO #define YESNO(YN) \ if (YN) SPRINTF(" Yes ");\ else SPRINTF(" No ") -static int dc395x_proc_info(struct Scsi_Host *host, char *buffer, - char **start, off_t offset, int length, int inout) +static int dc395x_show_info(struct seq_file *m, struct Scsi_Host *host) { struct AdapterCtlBlk *acb = (struct AdapterCtlBlk *)host->hostdata; int spd, spd1; - char *pos = buffer; struct DeviceCtlBlk *dcb; unsigned long flags; int dev; - if (inout) /* Has data been written to the file ? */ - return -EPERM; - SPRINTF(DC395X_BANNER " PCI SCSI Host Adapter\n"); SPRINTF(" Driver Version " DC395X_VERSION "\n"); @@ -4735,22 +4730,15 @@ static int dc395x_proc_info(struct Scsi_Host *host, char *buffer, SPRINTF("END\n"); } - *start = buffer + offset; DC395x_UNLOCK_IO(acb->scsi_host, flags); - - if (pos - buffer < offset) - return 0; - else if (pos - buffer - offset < length) - return pos - buffer - offset; - else - return length; + return 0; } static struct scsi_host_template dc395x_driver_template = { .module = THIS_MODULE, .proc_name = DC395X_NAME, - .proc_info = dc395x_proc_info, + .show_info = dc395x_show_info, .name = DC395X_BANNER " " DC395X_VERSION, .queuecommand = dc395x_queue_command, .bios_param = dc395x_bios_param, From d773e42213bcec26400732e494e2d8e37dc08c92 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 31 Mar 2013 03:26:26 -0400 Subject: [PATCH 081/204] atp870u: switch to ->show_info() Signed-off-by: Al Viro --- drivers/scsi/atp870u.c | 40 ++++++++-------------------------------- 1 file changed, 8 insertions(+), 32 deletions(-) diff --git a/drivers/scsi/atp870u.c b/drivers/scsi/atp870u.c index cfc73041f102..15a629d8ed08 100644 --- a/drivers/scsi/atp870u.c +++ b/drivers/scsi/atp870u.c @@ -3099,38 +3099,14 @@ static const char *atp870u_info(struct Scsi_Host *notused) return buffer; } -#define BLS buffer + len + size -static int atp870u_proc_info(struct Scsi_Host *HBAptr, char *buffer, - char **start, off_t offset, int length, int inout) +static int atp870u_show_info(struct seq_file *m, struct Scsi_Host *HBAptr) { - static u8 buff[512]; - int size = 0; - int len = 0; - off_t begin = 0; - off_t pos = 0; - - if (inout) - return -EINVAL; - if (offset == 0) - memset(buff, 0, sizeof(buff)); - size += sprintf(BLS, "ACARD AEC-671X Driver Version: 2.6+ac\n"); - len += size; - pos = begin + len; - size = 0; - - size += sprintf(BLS, "\n"); - size += sprintf(BLS, "Adapter Configuration:\n"); - size += sprintf(BLS, " Base IO: %#.4lx\n", HBAptr->io_port); - size += sprintf(BLS, " IRQ: %d\n", HBAptr->irq); - len += size; - pos = begin + len; - - *start = buffer + (offset - begin); /* Start of wanted data */ - len -= (offset - begin); /* Start slop */ - if (len > length) { - len = length; /* Ending slop */ - } - return (len); + seq_printf(m, "ACARD AEC-671X Driver Version: 2.6+ac\n"); + seq_printf(m, "\n"); + seq_printf(m, "Adapter Configuration:\n"); + seq_printf(m, " Base IO: %#.4lx\n", HBAptr->io_port); + seq_printf(m, " IRQ: %d\n", HBAptr->irq); + return 0; } @@ -3177,7 +3153,7 @@ static struct scsi_host_template atp870u_template = { .module = THIS_MODULE, .name = "atp870u" /* name */, .proc_name = "atp870u", - .proc_info = atp870u_proc_info, + .show_info = atp870u_show_info, .info = atp870u_info /* info */, .queuecommand = atp870u_queuecommand /* queuecommand */, .eh_abort_handler = atp870u_abort /* abort */, From 887fc88e63139810cbde5bf41aa11a749b2b776b Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 31 Mar 2013 03:32:45 -0400 Subject: [PATCH 082/204] in2000: switch to ->show_info() Signed-off-by: Al Viro --- drivers/scsi/in2000.c | 178 +++++++++++++++++------------------------- 1 file changed, 72 insertions(+), 106 deletions(-) diff --git a/drivers/scsi/in2000.c b/drivers/scsi/in2000.c index deb5b6d8398e..bf028218ac36 100644 --- a/drivers/scsi/in2000.c +++ b/drivers/scsi/in2000.c @@ -2166,152 +2166,117 @@ static int in2000_biosparam(struct scsi_device *sdev, struct block_device *bdev, } -static int in2000_proc_info(struct Scsi_Host *instance, char *buf, char **start, off_t off, int len, int in) +static int in2000_write_info(struct Scsi_Host *instance, char *buf, int len) { #ifdef PROC_INTERFACE char *bp; - char tbuf[128]; - unsigned long flags; struct IN2000_hostdata *hd; - Scsi_Cmnd *cmd; int x, i; - static int stop = 0; hd = (struct IN2000_hostdata *) instance->hostdata; -/* If 'in' is TRUE we need to _read_ the proc file. We accept the following - * keywords (same format as command-line, but only ONE per read): - * debug - * disconnect - * period - * resync - * proc - */ - - if (in) { - buf[len] = '\0'; - bp = buf; - if (!strncmp(bp, "debug:", 6)) { - bp += 6; - hd->args = simple_strtoul(bp, NULL, 0) & DB_MASK; - } else if (!strncmp(bp, "disconnect:", 11)) { - bp += 11; - x = simple_strtoul(bp, NULL, 0); - if (x < DIS_NEVER || x > DIS_ALWAYS) - x = DIS_ADAPTIVE; - hd->disconnect = x; - } else if (!strncmp(bp, "period:", 7)) { - bp += 7; - x = simple_strtoul(bp, NULL, 0); - hd->default_sx_per = sx_table[round_period((unsigned int) x)].period_ns; - } else if (!strncmp(bp, "resync:", 7)) { - bp += 7; - x = simple_strtoul(bp, NULL, 0); - for (i = 0; i < 7; i++) - if (x & (1 << i)) - hd->sync_stat[i] = SS_UNSET; - } else if (!strncmp(bp, "proc:", 5)) { - bp += 5; - hd->proc = simple_strtoul(bp, NULL, 0); - } else if (!strncmp(bp, "level2:", 7)) { - bp += 7; - hd->level2 = simple_strtoul(bp, NULL, 0); - } - return len; + buf[len] = '\0'; + bp = buf; + if (!strncmp(bp, "debug:", 6)) { + bp += 6; + hd->args = simple_strtoul(bp, NULL, 0) & DB_MASK; + } else if (!strncmp(bp, "disconnect:", 11)) { + bp += 11; + x = simple_strtoul(bp, NULL, 0); + if (x < DIS_NEVER || x > DIS_ALWAYS) + x = DIS_ADAPTIVE; + hd->disconnect = x; + } else if (!strncmp(bp, "period:", 7)) { + bp += 7; + x = simple_strtoul(bp, NULL, 0); + hd->default_sx_per = sx_table[round_period((unsigned int) x)].period_ns; + } else if (!strncmp(bp, "resync:", 7)) { + bp += 7; + x = simple_strtoul(bp, NULL, 0); + for (i = 0; i < 7; i++) + if (x & (1 << i)) + hd->sync_stat[i] = SS_UNSET; + } else if (!strncmp(bp, "proc:", 5)) { + bp += 5; + hd->proc = simple_strtoul(bp, NULL, 0); + } else if (!strncmp(bp, "level2:", 7)) { + bp += 7; + hd->level2 = simple_strtoul(bp, NULL, 0); } +#endif + return len; +} + +static int in2000_show_info(struct seq_file *m, struct Scsi_Host *instance) +{ + +#ifdef PROC_INTERFACE + unsigned long flags; + struct IN2000_hostdata *hd; + Scsi_Cmnd *cmd; + int x; + + hd = (struct IN2000_hostdata *) instance->hostdata; spin_lock_irqsave(instance->host_lock, flags); - bp = buf; - *bp = '\0'; - if (hd->proc & PR_VERSION) { - sprintf(tbuf, "\nVersion %s - %s.", IN2000_VERSION, IN2000_DATE); - strcat(bp, tbuf); - } + if (hd->proc & PR_VERSION) + seq_printf(m, "\nVersion %s - %s.", IN2000_VERSION, IN2000_DATE); + if (hd->proc & PR_INFO) { - sprintf(tbuf, "\ndip_switch=%02x: irq=%d io=%02x floppy=%s sync/DOS5=%s", (hd->dip_switch & 0x7f), instance->irq, hd->io_base, (hd->dip_switch & 0x40) ? "Yes" : "No", (hd->dip_switch & 0x20) ? "Yes" : "No"); - strcat(bp, tbuf); - strcat(bp, "\nsync_xfer[] = "); - for (x = 0; x < 7; x++) { - sprintf(tbuf, "\t%02x", hd->sync_xfer[x]); - strcat(bp, tbuf); - } - strcat(bp, "\nsync_stat[] = "); - for (x = 0; x < 7; x++) { - sprintf(tbuf, "\t%02x", hd->sync_stat[x]); - strcat(bp, tbuf); - } + seq_printf(m, "\ndip_switch=%02x: irq=%d io=%02x floppy=%s sync/DOS5=%s", (hd->dip_switch & 0x7f), instance->irq, hd->io_base, (hd->dip_switch & 0x40) ? "Yes" : "No", (hd->dip_switch & 0x20) ? "Yes" : "No"); + seq_printf(m, "\nsync_xfer[] = "); + for (x = 0; x < 7; x++) + seq_printf(m, "\t%02x", hd->sync_xfer[x]); + seq_printf(m, "\nsync_stat[] = "); + for (x = 0; x < 7; x++) + seq_printf(m, "\t%02x", hd->sync_stat[x]); } #ifdef PROC_STATISTICS if (hd->proc & PR_STATISTICS) { - strcat(bp, "\ncommands issued: "); - for (x = 0; x < 7; x++) { - sprintf(tbuf, "\t%ld", hd->cmd_cnt[x]); - strcat(bp, tbuf); - } - strcat(bp, "\ndisconnects allowed:"); - for (x = 0; x < 7; x++) { - sprintf(tbuf, "\t%ld", hd->disc_allowed_cnt[x]); - strcat(bp, tbuf); - } - strcat(bp, "\ndisconnects done: "); - for (x = 0; x < 7; x++) { - sprintf(tbuf, "\t%ld", hd->disc_done_cnt[x]); - strcat(bp, tbuf); - } - sprintf(tbuf, "\ninterrupts: \t%ld", hd->int_cnt); - strcat(bp, tbuf); + seq_printf(m, "\ncommands issued: "); + for (x = 0; x < 7; x++) + seq_printf(m, "\t%ld", hd->cmd_cnt[x]); + seq_printf(m, "\ndisconnects allowed:"); + for (x = 0; x < 7; x++) + seq_printf(m, "\t%ld", hd->disc_allowed_cnt[x]); + seq_printf(m, "\ndisconnects done: "); + for (x = 0; x < 7; x++) + seq_printf(m, "\t%ld", hd->disc_done_cnt[x]); + seq_printf(m, "\ninterrupts: \t%ld", hd->int_cnt); } #endif if (hd->proc & PR_CONNECTED) { - strcat(bp, "\nconnected: "); + seq_printf(m, "\nconnected: "); if (hd->connected) { cmd = (Scsi_Cmnd *) hd->connected; - sprintf(tbuf, " %d:%d(%02x)", cmd->device->id, cmd->device->lun, cmd->cmnd[0]); - strcat(bp, tbuf); + seq_printf(m, " %d:%d(%02x)", cmd->device->id, cmd->device->lun, cmd->cmnd[0]); } } if (hd->proc & PR_INPUTQ) { - strcat(bp, "\ninput_Q: "); + seq_printf(m, "\ninput_Q: "); cmd = (Scsi_Cmnd *) hd->input_Q; while (cmd) { - sprintf(tbuf, " %d:%d(%02x)", cmd->device->id, cmd->device->lun, cmd->cmnd[0]); - strcat(bp, tbuf); + seq_printf(m, " %d:%d(%02x)", cmd->device->id, cmd->device->lun, cmd->cmnd[0]); cmd = (Scsi_Cmnd *) cmd->host_scribble; } } if (hd->proc & PR_DISCQ) { - strcat(bp, "\ndisconnected_Q:"); + seq_printf(m, "\ndisconnected_Q:"); cmd = (Scsi_Cmnd *) hd->disconnected_Q; while (cmd) { - sprintf(tbuf, " %d:%d(%02x)", cmd->device->id, cmd->device->lun, cmd->cmnd[0]); - strcat(bp, tbuf); + seq_printf(m, " %d:%d(%02x)", cmd->device->id, cmd->device->lun, cmd->cmnd[0]); cmd = (Scsi_Cmnd *) cmd->host_scribble; } } if (hd->proc & PR_TEST) { ; /* insert your own custom function here */ } - strcat(bp, "\n"); + seq_printf(m, "\n"); spin_unlock_irqrestore(instance->host_lock, flags); - *start = buf; - if (stop) { - stop = 0; - return 0; /* return 0 to signal end-of-file */ - } - if (off > 0x40000) /* ALWAYS stop after 256k bytes have been read */ - stop = 1; - if (hd->proc & PR_STOP) /* stop every other time */ - stop = 1; - return strlen(bp); - -#else /* PROC_INTERFACE */ - - return 0; - #endif /* PROC_INTERFACE */ - + return 0; } MODULE_LICENSE("GPL"); @@ -2319,7 +2284,8 @@ MODULE_LICENSE("GPL"); static struct scsi_host_template driver_template = { .proc_name = "in2000", - .proc_info = in2000_proc_info, + .write_info = in2000_write_info, + .show_info = in2000_show_info, .name = "Always IN2000", .detect = in2000_detect, .release = in2000_release, From f6f83a6c9210725c730b64ba4b1db74641fab023 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 31 Mar 2013 03:59:17 -0400 Subject: [PATCH 083/204] aic79xx: switch to ->show_info() Signed-off-by: Al Viro --- drivers/scsi/aic7xxx/aic79xx_osm.c | 9 +- drivers/scsi/aic7xxx/aic79xx_osm.h | 12 +- drivers/scsi/aic7xxx/aic79xx_proc.c | 163 +++++++++------------------- 3 files changed, 53 insertions(+), 131 deletions(-) diff --git a/drivers/scsi/aic7xxx/aic79xx_osm.c b/drivers/scsi/aic7xxx/aic79xx_osm.c index 9328121804bb..69d5c43a65e5 100644 --- a/drivers/scsi/aic7xxx/aic79xx_osm.c +++ b/drivers/scsi/aic7xxx/aic79xx_osm.c @@ -906,7 +906,8 @@ struct scsi_host_template aic79xx_driver_template = { .module = THIS_MODULE, .name = "aic79xx", .proc_name = "aic79xx", - .proc_info = ahd_linux_proc_info, + .show_info = ahd_linux_show_info, + .write_info = ahd_proc_write_seeprom, .info = ahd_linux_info, .queuecommand = ahd_linux_queue, .eh_abort_handler = ahd_linux_abort, @@ -1702,19 +1703,13 @@ ahd_send_async(struct ahd_softc *ahd, char channel, switch (code) { case AC_TRANSFER_NEG: { - char buf[80]; struct scsi_target *starget; - struct info_str info; struct ahd_initiator_tinfo *tinfo; struct ahd_tmode_tstate *tstate; unsigned int target_ppr_options; BUG_ON(target == CAM_TARGET_WILDCARD); - info.buffer = buf; - info.length = sizeof(buf); - info.offset = 0; - info.pos = 0; tinfo = ahd_fetch_transinfo(ahd, channel, ahd->our_id, target, &tstate); diff --git a/drivers/scsi/aic7xxx/aic79xx_osm.h b/drivers/scsi/aic7xxx/aic79xx_osm.h index 28e43498cdff..c58fa33c6592 100644 --- a/drivers/scsi/aic7xxx/aic79xx_osm.h +++ b/drivers/scsi/aic7xxx/aic79xx_osm.h @@ -379,14 +379,6 @@ void ahd_insb(struct ahd_softc * ahd, long port, int ahd_linux_register_host(struct ahd_softc *, struct scsi_host_template *); -/*************************** Pretty Printing **********************************/ -struct info_str { - char *buffer; - int length; - off_t offset; - int pos; -}; - /******************************** Locking *************************************/ static inline void ahd_lockinit(struct ahd_softc *ahd) @@ -513,8 +505,8 @@ ahd_flush_device_writes(struct ahd_softc *ahd) } /**************************** Proc FS Support *********************************/ -int ahd_linux_proc_info(struct Scsi_Host *, char *, char **, - off_t, int, int); +int ahd_proc_write_seeprom(struct Scsi_Host *, char *, int); +int ahd_linux_show_info(struct seq_file *,struct Scsi_Host *); /*********************** Transaction Access Wrappers **************************/ static inline void ahd_cmd_set_transaction_status(struct scsi_cmnd *, uint32_t); diff --git a/drivers/scsi/aic7xxx/aic79xx_proc.c b/drivers/scsi/aic7xxx/aic79xx_proc.c index 59c85d5a153a..e9778b4f7e32 100644 --- a/drivers/scsi/aic7xxx/aic79xx_proc.c +++ b/drivers/scsi/aic7xxx/aic79xx_proc.c @@ -42,16 +42,12 @@ #include "aic79xx_osm.h" #include "aic79xx_inline.h" -static void copy_mem_info(struct info_str *info, char *data, int len); -static int copy_info(struct info_str *info, char *fmt, ...); static void ahd_dump_target_state(struct ahd_softc *ahd, - struct info_str *info, + struct seq_file *m, u_int our_id, char channel, u_int target_id); -static void ahd_dump_device_state(struct info_str *info, +static void ahd_dump_device_state(struct seq_file *m, struct scsi_device *sdev); -static int ahd_proc_write_seeprom(struct ahd_softc *ahd, - char *buffer, int length); /* * Table of syncrates that don't follow the "divisible by 4" @@ -93,58 +89,15 @@ ahd_calc_syncsrate(u_int period_factor) return (10000000 / (period_factor * 4 * 10)); } - static void -copy_mem_info(struct info_str *info, char *data, int len) -{ - if (info->pos + len > info->offset + info->length) - len = info->offset + info->length - info->pos; - - if (info->pos + len < info->offset) { - info->pos += len; - return; - } - - if (info->pos < info->offset) { - off_t partial; - - partial = info->offset - info->pos; - data += partial; - info->pos += partial; - len -= partial; - } - - if (len > 0) { - memcpy(info->buffer, data, len); - info->pos += len; - info->buffer += len; - } -} - -static int -copy_info(struct info_str *info, char *fmt, ...) -{ - va_list args; - char buf[256]; - int len; - - va_start(args, fmt); - len = vsprintf(buf, fmt, args); - va_end(args); - - copy_mem_info(info, buf, len); - return (len); -} - -static void -ahd_format_transinfo(struct info_str *info, struct ahd_transinfo *tinfo) +ahd_format_transinfo(struct seq_file *m, struct ahd_transinfo *tinfo) { u_int speed; u_int freq; u_int mb; if (tinfo->period == AHD_PERIOD_UNKNOWN) { - copy_info(info, "Renegotiation Pending\n"); + seq_printf(m, "Renegotiation Pending\n"); return; } speed = 3300; @@ -156,34 +109,34 @@ ahd_format_transinfo(struct info_str *info, struct ahd_transinfo *tinfo) speed *= (0x01 << tinfo->width); mb = speed / 1000; if (mb > 0) - copy_info(info, "%d.%03dMB/s transfers", mb, speed % 1000); + seq_printf(m, "%d.%03dMB/s transfers", mb, speed % 1000); else - copy_info(info, "%dKB/s transfers", speed); + seq_printf(m, "%dKB/s transfers", speed); if (freq != 0) { int printed_options; printed_options = 0; - copy_info(info, " (%d.%03dMHz", freq / 1000, freq % 1000); + seq_printf(m, " (%d.%03dMHz", freq / 1000, freq % 1000); if ((tinfo->ppr_options & MSG_EXT_PPR_RD_STRM) != 0) { - copy_info(info, " RDSTRM"); + seq_printf(m, " RDSTRM"); printed_options++; } if ((tinfo->ppr_options & MSG_EXT_PPR_DT_REQ) != 0) { - copy_info(info, "%s", printed_options ? "|DT" : " DT"); + seq_printf(m, "%s", printed_options ? "|DT" : " DT"); printed_options++; } if ((tinfo->ppr_options & MSG_EXT_PPR_IU_REQ) != 0) { - copy_info(info, "%s", printed_options ? "|IU" : " IU"); + seq_printf(m, "%s", printed_options ? "|IU" : " IU"); printed_options++; } if ((tinfo->ppr_options & MSG_EXT_PPR_RTI) != 0) { - copy_info(info, "%s", + seq_printf(m, "%s", printed_options ? "|RTI" : " RTI"); printed_options++; } if ((tinfo->ppr_options & MSG_EXT_PPR_QAS_REQ) != 0) { - copy_info(info, "%s", + seq_printf(m, "%s", printed_options ? "|QAS" : " QAS"); printed_options++; } @@ -191,19 +144,19 @@ ahd_format_transinfo(struct info_str *info, struct ahd_transinfo *tinfo) if (tinfo->width > 0) { if (freq != 0) { - copy_info(info, ", "); + seq_printf(m, ", "); } else { - copy_info(info, " ("); + seq_printf(m, " ("); } - copy_info(info, "%dbit)", 8 * (0x01 << tinfo->width)); + seq_printf(m, "%dbit)", 8 * (0x01 << tinfo->width)); } else if (freq != 0) { - copy_info(info, ")"); + seq_printf(m, ")"); } - copy_info(info, "\n"); + seq_printf(m, "\n"); } static void -ahd_dump_target_state(struct ahd_softc *ahd, struct info_str *info, +ahd_dump_target_state(struct ahd_softc *ahd, struct seq_file *m, u_int our_id, char channel, u_int target_id) { struct scsi_target *starget; @@ -213,17 +166,17 @@ ahd_dump_target_state(struct ahd_softc *ahd, struct info_str *info, tinfo = ahd_fetch_transinfo(ahd, channel, our_id, target_id, &tstate); - copy_info(info, "Target %d Negotiation Settings\n", target_id); - copy_info(info, "\tUser: "); - ahd_format_transinfo(info, &tinfo->user); + seq_printf(m, "Target %d Negotiation Settings\n", target_id); + seq_printf(m, "\tUser: "); + ahd_format_transinfo(m, &tinfo->user); starget = ahd->platform_data->starget[target_id]; if (starget == NULL) return; - copy_info(info, "\tGoal: "); - ahd_format_transinfo(info, &tinfo->goal); - copy_info(info, "\tCurr: "); - ahd_format_transinfo(info, &tinfo->curr); + seq_printf(m, "\tGoal: "); + ahd_format_transinfo(m, &tinfo->goal); + seq_printf(m, "\tCurr: "); + ahd_format_transinfo(m, &tinfo->curr); for (lun = 0; lun < AHD_NUM_LUNS; lun++) { struct scsi_device *dev; @@ -233,29 +186,30 @@ ahd_dump_target_state(struct ahd_softc *ahd, struct info_str *info, if (dev == NULL) continue; - ahd_dump_device_state(info, dev); + ahd_dump_device_state(m, dev); } } static void -ahd_dump_device_state(struct info_str *info, struct scsi_device *sdev) +ahd_dump_device_state(struct seq_file *m, struct scsi_device *sdev) { struct ahd_linux_device *dev = scsi_transport_device_data(sdev); - copy_info(info, "\tChannel %c Target %d Lun %d Settings\n", + seq_printf(m, "\tChannel %c Target %d Lun %d Settings\n", sdev->sdev_target->channel + 'A', sdev->sdev_target->id, sdev->lun); - copy_info(info, "\t\tCommands Queued %ld\n", dev->commands_issued); - copy_info(info, "\t\tCommands Active %d\n", dev->active); - copy_info(info, "\t\tCommand Openings %d\n", dev->openings); - copy_info(info, "\t\tMax Tagged Openings %d\n", dev->maxtags); - copy_info(info, "\t\tDevice Queue Frozen Count %d\n", dev->qfrozen); + seq_printf(m, "\t\tCommands Queued %ld\n", dev->commands_issued); + seq_printf(m, "\t\tCommands Active %d\n", dev->active); + seq_printf(m, "\t\tCommand Openings %d\n", dev->openings); + seq_printf(m, "\t\tMax Tagged Openings %d\n", dev->maxtags); + seq_printf(m, "\t\tDevice Queue Frozen Count %d\n", dev->qfrozen); } -static int -ahd_proc_write_seeprom(struct ahd_softc *ahd, char *buffer, int length) +int +ahd_proc_write_seeprom(struct Scsi_Host *shost, char *buffer, int length) { + struct ahd_softc *ahd = *(struct ahd_softc **)shost->hostdata; ahd_mode_state saved_modes; int have_seeprom; u_long s; @@ -319,64 +273,45 @@ ahd_proc_write_seeprom(struct ahd_softc *ahd, char *buffer, int length) * Return information to handle /proc support for the driver. */ int -ahd_linux_proc_info(struct Scsi_Host *shost, char *buffer, char **start, - off_t offset, int length, int inout) +ahd_linux_show_info(struct seq_file *m, struct Scsi_Host *shost) { struct ahd_softc *ahd = *(struct ahd_softc **)shost->hostdata; - struct info_str info; char ahd_info[256]; u_int max_targ; u_int i; - int retval; - /* Has data been written to the file? */ - if (inout == TRUE) { - retval = ahd_proc_write_seeprom(ahd, buffer, length); - goto done; - } - - if (start) - *start = buffer; - - info.buffer = buffer; - info.length = length; - info.offset = offset; - info.pos = 0; - - copy_info(&info, "Adaptec AIC79xx driver version: %s\n", + seq_printf(m, "Adaptec AIC79xx driver version: %s\n", AIC79XX_DRIVER_VERSION); - copy_info(&info, "%s\n", ahd->description); + seq_printf(m, "%s\n", ahd->description); ahd_controller_info(ahd, ahd_info); - copy_info(&info, "%s\n", ahd_info); - copy_info(&info, "Allocated SCBs: %d, SG List Length: %d\n\n", + seq_printf(m, "%s\n", ahd_info); + seq_printf(m, "Allocated SCBs: %d, SG List Length: %d\n\n", ahd->scb_data.numscbs, AHD_NSEG); max_targ = 16; if (ahd->seep_config == NULL) - copy_info(&info, "No Serial EEPROM\n"); + seq_printf(m, "No Serial EEPROM\n"); else { - copy_info(&info, "Serial EEPROM:\n"); + seq_printf(m, "Serial EEPROM:\n"); for (i = 0; i < sizeof(*ahd->seep_config)/2; i++) { if (((i % 8) == 0) && (i != 0)) { - copy_info(&info, "\n"); + seq_printf(m, "\n"); } - copy_info(&info, "0x%.4x ", + seq_printf(m, "0x%.4x ", ((uint16_t*)ahd->seep_config)[i]); } - copy_info(&info, "\n"); + seq_printf(m, "\n"); } - copy_info(&info, "\n"); + seq_printf(m, "\n"); if ((ahd->features & AHD_WIDE) == 0) max_targ = 8; for (i = 0; i < max_targ; i++) { - ahd_dump_target_state(ahd, &info, ahd->our_id, 'A', + ahd_dump_target_state(ahd, m, ahd->our_id, 'A', /*target_id*/i); } - retval = info.pos > info.offset ? info.pos - info.offset : 0; -done: - return (retval); + return 0; } From 6b3a8bbfd15ca86da496845890a48bee27b423e4 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 31 Mar 2013 04:07:31 -0400 Subject: [PATCH 084/204] aic7xxx: switch to ->show_info() Signed-off-by: Al Viro --- drivers/scsi/aic7xxx/aic7xxx_osm.c | 9 +- drivers/scsi/aic7xxx/aic7xxx_osm.h | 12 +-- drivers/scsi/aic7xxx/aic7xxx_proc.c | 153 ++++++++-------------------- 3 files changed, 48 insertions(+), 126 deletions(-) diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.c b/drivers/scsi/aic7xxx/aic7xxx_osm.c index 5a477cdc780d..c0c62583b542 100644 --- a/drivers/scsi/aic7xxx/aic7xxx_osm.c +++ b/drivers/scsi/aic7xxx/aic7xxx_osm.c @@ -803,7 +803,8 @@ struct scsi_host_template aic7xxx_driver_template = { .module = THIS_MODULE, .name = "aic7xxx", .proc_name = "aic7xxx", - .proc_info = ahc_linux_proc_info, + .show_info = ahc_linux_show_info, + .write_info = ahc_proc_write_seeprom, .info = ahc_linux_info, .queuecommand = ahc_linux_queue, .eh_abort_handler = ahc_linux_abort, @@ -1631,10 +1632,8 @@ ahc_send_async(struct ahc_softc *ahc, char channel, switch (code) { case AC_TRANSFER_NEG: { - char buf[80]; struct scsi_target *starget; struct ahc_linux_target *targ; - struct info_str info; struct ahc_initiator_tinfo *tinfo; struct ahc_tmode_tstate *tstate; int target_offset; @@ -1642,10 +1641,6 @@ ahc_send_async(struct ahc_softc *ahc, char channel, BUG_ON(target == CAM_TARGET_WILDCARD); - info.buffer = buf; - info.length = sizeof(buf); - info.offset = 0; - info.pos = 0; tinfo = ahc_fetch_transinfo(ahc, channel, channel == 'A' ? ahc->our_id : ahc->our_id_b, diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.h b/drivers/scsi/aic7xxx/aic7xxx_osm.h index bca0fb83f553..bc4cca92ff04 100644 --- a/drivers/scsi/aic7xxx/aic7xxx_osm.h +++ b/drivers/scsi/aic7xxx/aic7xxx_osm.h @@ -383,14 +383,6 @@ void ahc_insb(struct ahc_softc * ahc, long port, int ahc_linux_register_host(struct ahc_softc *, struct scsi_host_template *); -/*************************** Pretty Printing **********************************/ -struct info_str { - char *buffer; - int length; - off_t offset; - int pos; -}; - /******************************** Locking *************************************/ /* Lock protecting internal data structures */ @@ -523,8 +515,8 @@ ahc_flush_device_writes(struct ahc_softc *ahc) } /**************************** Proc FS Support *********************************/ -int ahc_linux_proc_info(struct Scsi_Host *, char *, char **, - off_t, int, int); +int ahc_proc_write_seeprom(struct Scsi_Host *, char *, int); +int ahc_linux_show_info(struct seq_file *, struct Scsi_Host *); /*************************** Domain Validation ********************************/ /*********************** Transaction Access Wrappers *************************/ diff --git a/drivers/scsi/aic7xxx/aic7xxx_proc.c b/drivers/scsi/aic7xxx/aic7xxx_proc.c index f2525f8ed1c7..383a3d11652d 100644 --- a/drivers/scsi/aic7xxx/aic7xxx_proc.c +++ b/drivers/scsi/aic7xxx/aic7xxx_proc.c @@ -43,16 +43,12 @@ #include "aic7xxx_inline.h" #include "aic7xxx_93cx6.h" -static void copy_mem_info(struct info_str *info, char *data, int len); -static int copy_info(struct info_str *info, char *fmt, ...); static void ahc_dump_target_state(struct ahc_softc *ahc, - struct info_str *info, + struct seq_file *m, u_int our_id, char channel, u_int target_id, u_int target_offset); -static void ahc_dump_device_state(struct info_str *info, +static void ahc_dump_device_state(struct seq_file *m, struct scsi_device *dev); -static int ahc_proc_write_seeprom(struct ahc_softc *ahc, - char *buffer, int length); /* * Table of syncrates that don't follow the "divisible by 4" @@ -94,51 +90,8 @@ ahc_calc_syncsrate(u_int period_factor) return (10000000 / (period_factor * 4 * 10)); } - static void -copy_mem_info(struct info_str *info, char *data, int len) -{ - if (info->pos + len > info->offset + info->length) - len = info->offset + info->length - info->pos; - - if (info->pos + len < info->offset) { - info->pos += len; - return; - } - - if (info->pos < info->offset) { - off_t partial; - - partial = info->offset - info->pos; - data += partial; - info->pos += partial; - len -= partial; - } - - if (len > 0) { - memcpy(info->buffer, data, len); - info->pos += len; - info->buffer += len; - } -} - -static int -copy_info(struct info_str *info, char *fmt, ...) -{ - va_list args; - char buf[256]; - int len; - - va_start(args, fmt); - len = vsprintf(buf, fmt, args); - va_end(args); - - copy_mem_info(info, buf, len); - return (len); -} - -static void -ahc_format_transinfo(struct info_str *info, struct ahc_transinfo *tinfo) +ahc_format_transinfo(struct seq_file *m, struct ahc_transinfo *tinfo) { u_int speed; u_int freq; @@ -153,12 +106,12 @@ ahc_format_transinfo(struct info_str *info, struct ahc_transinfo *tinfo) speed *= (0x01 << tinfo->width); mb = speed / 1000; if (mb > 0) - copy_info(info, "%d.%03dMB/s transfers", mb, speed % 1000); + seq_printf(m, "%d.%03dMB/s transfers", mb, speed % 1000); else - copy_info(info, "%dKB/s transfers", speed); + seq_printf(m, "%dKB/s transfers", speed); if (freq != 0) { - copy_info(info, " (%d.%03dMHz%s, offset %d", + seq_printf(m, " (%d.%03dMHz%s, offset %d", freq / 1000, freq % 1000, (tinfo->ppr_options & MSG_EXT_PPR_DT_REQ) != 0 ? " DT" : "", tinfo->offset); @@ -166,19 +119,19 @@ ahc_format_transinfo(struct info_str *info, struct ahc_transinfo *tinfo) if (tinfo->width > 0) { if (freq != 0) { - copy_info(info, ", "); + seq_printf(m, ", "); } else { - copy_info(info, " ("); + seq_printf(m, " ("); } - copy_info(info, "%dbit)", 8 * (0x01 << tinfo->width)); + seq_printf(m, "%dbit)", 8 * (0x01 << tinfo->width)); } else if (freq != 0) { - copy_info(info, ")"); + seq_printf(m, ")"); } - copy_info(info, "\n"); + seq_printf(m, "\n"); } static void -ahc_dump_target_state(struct ahc_softc *ahc, struct info_str *info, +ahc_dump_target_state(struct ahc_softc *ahc, struct seq_file *m, u_int our_id, char channel, u_int target_id, u_int target_offset) { @@ -190,18 +143,18 @@ ahc_dump_target_state(struct ahc_softc *ahc, struct info_str *info, tinfo = ahc_fetch_transinfo(ahc, channel, our_id, target_id, &tstate); if ((ahc->features & AHC_TWIN) != 0) - copy_info(info, "Channel %c ", channel); - copy_info(info, "Target %d Negotiation Settings\n", target_id); - copy_info(info, "\tUser: "); - ahc_format_transinfo(info, &tinfo->user); + seq_printf(m, "Channel %c ", channel); + seq_printf(m, "Target %d Negotiation Settings\n", target_id); + seq_printf(m, "\tUser: "); + ahc_format_transinfo(m, &tinfo->user); starget = ahc->platform_data->starget[target_offset]; if (!starget) return; - copy_info(info, "\tGoal: "); - ahc_format_transinfo(info, &tinfo->goal); - copy_info(info, "\tCurr: "); - ahc_format_transinfo(info, &tinfo->curr); + seq_printf(m, "\tGoal: "); + ahc_format_transinfo(m, &tinfo->goal); + seq_printf(m, "\tCurr: "); + ahc_format_transinfo(m, &tinfo->curr); for (lun = 0; lun < AHC_NUM_LUNS; lun++) { struct scsi_device *sdev; @@ -211,29 +164,30 @@ ahc_dump_target_state(struct ahc_softc *ahc, struct info_str *info, if (sdev == NULL) continue; - ahc_dump_device_state(info, sdev); + ahc_dump_device_state(m, sdev); } } static void -ahc_dump_device_state(struct info_str *info, struct scsi_device *sdev) +ahc_dump_device_state(struct seq_file *m, struct scsi_device *sdev) { struct ahc_linux_device *dev = scsi_transport_device_data(sdev); - copy_info(info, "\tChannel %c Target %d Lun %d Settings\n", + seq_printf(m, "\tChannel %c Target %d Lun %d Settings\n", sdev->sdev_target->channel + 'A', sdev->sdev_target->id, sdev->lun); - copy_info(info, "\t\tCommands Queued %ld\n", dev->commands_issued); - copy_info(info, "\t\tCommands Active %d\n", dev->active); - copy_info(info, "\t\tCommand Openings %d\n", dev->openings); - copy_info(info, "\t\tMax Tagged Openings %d\n", dev->maxtags); - copy_info(info, "\t\tDevice Queue Frozen Count %d\n", dev->qfrozen); + seq_printf(m, "\t\tCommands Queued %ld\n", dev->commands_issued); + seq_printf(m, "\t\tCommands Active %d\n", dev->active); + seq_printf(m, "\t\tCommand Openings %d\n", dev->openings); + seq_printf(m, "\t\tMax Tagged Openings %d\n", dev->maxtags); + seq_printf(m, "\t\tDevice Queue Frozen Count %d\n", dev->qfrozen); } -static int -ahc_proc_write_seeprom(struct ahc_softc *ahc, char *buffer, int length) +int +ahc_proc_write_seeprom(struct Scsi_Host *shost, char *buffer, int length) { + struct ahc_softc *ahc = *(struct ahc_softc **)shost->hostdata; struct seeprom_descriptor sd; int have_seeprom; u_long s; @@ -332,53 +286,36 @@ ahc_proc_write_seeprom(struct ahc_softc *ahc, char *buffer, int length) * Return information to handle /proc support for the driver. */ int -ahc_linux_proc_info(struct Scsi_Host *shost, char *buffer, char **start, - off_t offset, int length, int inout) +ahc_linux_show_info(struct seq_file *m, struct Scsi_Host *shost) { struct ahc_softc *ahc = *(struct ahc_softc **)shost->hostdata; - struct info_str info; char ahc_info[256]; u_int max_targ; u_int i; - int retval; - /* Has data been written to the file? */ - if (inout == TRUE) { - retval = ahc_proc_write_seeprom(ahc, buffer, length); - goto done; - } - - if (start) - *start = buffer; - - info.buffer = buffer; - info.length = length; - info.offset = offset; - info.pos = 0; - - copy_info(&info, "Adaptec AIC7xxx driver version: %s\n", + seq_printf(m, "Adaptec AIC7xxx driver version: %s\n", AIC7XXX_DRIVER_VERSION); - copy_info(&info, "%s\n", ahc->description); + seq_printf(m, "%s\n", ahc->description); ahc_controller_info(ahc, ahc_info); - copy_info(&info, "%s\n", ahc_info); - copy_info(&info, "Allocated SCBs: %d, SG List Length: %d\n\n", + seq_printf(m, "%s\n", ahc_info); + seq_printf(m, "Allocated SCBs: %d, SG List Length: %d\n\n", ahc->scb_data->numscbs, AHC_NSEG); if (ahc->seep_config == NULL) - copy_info(&info, "No Serial EEPROM\n"); + seq_printf(m, "No Serial EEPROM\n"); else { - copy_info(&info, "Serial EEPROM:\n"); + seq_printf(m, "Serial EEPROM:\n"); for (i = 0; i < sizeof(*ahc->seep_config)/2; i++) { if (((i % 8) == 0) && (i != 0)) { - copy_info(&info, "\n"); + seq_printf(m, "\n"); } - copy_info(&info, "0x%.4x ", + seq_printf(m, "0x%.4x ", ((uint16_t*)ahc->seep_config)[i]); } - copy_info(&info, "\n"); + seq_printf(m, "\n"); } - copy_info(&info, "\n"); + seq_printf(m, "\n"); max_targ = 16; if ((ahc->features & (AHC_WIDE|AHC_TWIN)) == 0) @@ -398,10 +335,8 @@ ahc_linux_proc_info(struct Scsi_Host *shost, char *buffer, char **start, target_id = i % 8; } - ahc_dump_target_state(ahc, &info, our_id, + ahc_dump_target_state(ahc, m, our_id, channel, target_id, i); } - retval = info.pos > info.offset ? info.pos - info.offset : 0; -done: - return (retval); + return 0; } From 9d4e5c54a3b67cc0246afe0274ba028a85e79a10 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 31 Mar 2013 04:42:22 -0400 Subject: [PATCH 085/204] fas216: switch to ->show_info() Signed-off-by: Al Viro --- drivers/scsi/arm/arxescsi.c | 40 ++++++---------------------------- drivers/scsi/arm/cumana_2.c | 43 ++++++++----------------------------- drivers/scsi/arm/eesox.c | 42 ++++++++---------------------------- drivers/scsi/arm/fas216.c | 31 +++++++++++--------------- drivers/scsi/arm/fas216.h | 6 +++--- drivers/scsi/arm/powertec.c | 29 ++++++++----------------- 6 files changed, 49 insertions(+), 142 deletions(-) diff --git a/drivers/scsi/arm/arxescsi.c b/drivers/scsi/arm/arxescsi.c index 9274510294ac..32d23212de48 100644 --- a/drivers/scsi/arm/arxescsi.c +++ b/drivers/scsi/arm/arxescsi.c @@ -220,47 +220,21 @@ static const char *arxescsi_info(struct Scsi_Host *host) return string; } -/* - * Function: int arxescsi_proc_info(char *buffer, char **start, off_t offset, - * int length, int host_no, int inout) - * Purpose : Return information about the driver to a user process accessing - * the /proc filesystem. - * Params : buffer - a buffer to write information to - * start - a pointer into this buffer set by this routine to the start - * of the required information. - * offset - offset into information that we have read up to. - * length - length of buffer - * host_no - host number to return information for - * inout - 0 for reading, 1 for writing. - * Returns : length of data written to buffer. - */ static int -arxescsi_proc_info(struct Scsi_Host *host, char *buffer, char **start, off_t offset, int length, - int inout) +arxescsi_show_info(struct seq_file *m, struct Scsi_Host *host) { struct arxescsi_info *info; - char *p = buffer; - int pos; - info = (struct arxescsi_info *)host->hostdata; - if (inout == 1) - return -EINVAL; - p += sprintf(p, "ARXE 16-bit SCSI driver v%s\n", VERSION); - p += fas216_print_host(&info->info, p); - p += fas216_print_stats(&info->info, p); - p += fas216_print_devices(&info->info, p); - - *start = buffer + offset; - pos = p - buffer - offset; - if (pos > length) - pos = length; - - return pos; + seq_printf(m, "ARXE 16-bit SCSI driver v%s\n", VERSION); + fas216_print_host(&info->info, m); + fas216_print_stats(&info->info, m); + fas216_print_devices(&info->info, m); + return 0; } static struct scsi_host_template arxescsi_template = { - .proc_info = arxescsi_proc_info, + .show_info = arxescsi_show_info, .name = "ARXE SCSI card", .info = arxescsi_info, .queuecommand = fas216_noqueue_command, diff --git a/drivers/scsi/arm/cumana_2.c b/drivers/scsi/arm/cumana_2.c index e3bae93c3c22..58915f29055b 100644 --- a/drivers/scsi/arm/cumana_2.c +++ b/drivers/scsi/arm/cumana_2.c @@ -337,50 +337,25 @@ cumanascsi_2_set_proc_info(struct Scsi_Host *host, char *buffer, int length) return ret; } -/* Prototype: int cumanascsi_2_proc_info(char *buffer, char **start, off_t offset, - * int length, int host_no, int inout) - * Purpose : Return information about the driver to a user process accessing - * the /proc filesystem. - * Params : buffer - a buffer to write information to - * start - a pointer into this buffer set by this routine to the start - * of the required information. - * offset - offset into information that we have read up to. - * length - length of buffer - * host_no - host number to return information for - * inout - 0 for reading, 1 for writing. - * Returns : length of data written to buffer. - */ -int cumanascsi_2_proc_info (struct Scsi_Host *host, char *buffer, char **start, off_t offset, - int length, int inout) +static int cumanascsi_2_show_info(struct seq_file *m, struct Scsi_Host *host) { struct cumanascsi2_info *info; - char *p = buffer; - int pos; - - if (inout == 1) - return cumanascsi_2_set_proc_info(host, buffer, length); - info = (struct cumanascsi2_info *)host->hostdata; - p += sprintf(p, "Cumana SCSI II driver v%s\n", VERSION); - p += fas216_print_host(&info->info, p); - p += sprintf(p, "Term : o%s\n", + seq_printf(m, "Cumana SCSI II driver v%s\n", VERSION); + fas216_print_host(&info->info, m); + seq_printf(m, "Term : o%s\n", info->terms ? "n" : "ff"); - p += fas216_print_stats(&info->info, p); - p += fas216_print_devices(&info->info, p); - - *start = buffer + offset; - pos = p - buffer - offset; - if (pos > length) - pos = length; - - return pos; + fas216_print_stats(&info->info, m); + fas216_print_devices(&info->info, m); + return 0; } static struct scsi_host_template cumanascsi2_template = { .module = THIS_MODULE, - .proc_info = cumanascsi_2_proc_info, + .show_info = cumanascsi_2_show_info, + .write_info = cumanascsi_2_set_proc_info, .name = "Cumana SCSI II", .info = cumanascsi_2_info, .queuecommand = fas216_queue_command, diff --git a/drivers/scsi/arm/eesox.c b/drivers/scsi/arm/eesox.c index 8e36908415ec..5bf3c0d134b4 100644 --- a/drivers/scsi/arm/eesox.c +++ b/drivers/scsi/arm/eesox.c @@ -422,45 +422,20 @@ eesoxscsi_set_proc_info(struct Scsi_Host *host, char *buffer, int length) return ret; } -/* Prototype: int eesoxscsi_proc_info(char *buffer, char **start, off_t offset, - * int length, int host_no, int inout) - * Purpose : Return information about the driver to a user process accessing - * the /proc filesystem. - * Params : buffer - a buffer to write information to - * start - a pointer into this buffer set by this routine to the start - * of the required information. - * offset - offset into information that we have read up to. - * length - length of buffer - * host_no - host number to return information for - * inout - 0 for reading, 1 for writing. - * Returns : length of data written to buffer. - */ -int eesoxscsi_proc_info(struct Scsi_Host *host, char *buffer, char **start, off_t offset, - int length, int inout) +static int eesoxscsi_show_info(struct seq_file *m, struct Scsi_Host *host) { struct eesoxscsi_info *info; - char *p = buffer; - int pos; - - if (inout == 1) - return eesoxscsi_set_proc_info(host, buffer, length); info = (struct eesoxscsi_info *)host->hostdata; - p += sprintf(p, "EESOX SCSI driver v%s\n", VERSION); - p += fas216_print_host(&info->info, p); - p += sprintf(p, "Term : o%s\n", + seq_printf(m, "EESOX SCSI driver v%s\n", VERSION); + fas216_print_host(&info->info, m); + seq_printf(m, "Term : o%s\n", info->control & EESOX_TERM_ENABLE ? "n" : "ff"); - p += fas216_print_stats(&info->info, p); - p += fas216_print_devices(&info->info, p); - - *start = buffer + offset; - pos = p - buffer - offset; - if (pos > length) - pos = length; - - return pos; + fas216_print_stats(&info->info, m); + fas216_print_devices(&info->info, m); + return 0; } static ssize_t eesoxscsi_show_term(struct device *dev, struct device_attribute *attr, char *buf) @@ -498,7 +473,8 @@ static DEVICE_ATTR(bus_term, S_IRUGO | S_IWUSR, static struct scsi_host_template eesox_template = { .module = THIS_MODULE, - .proc_info = eesoxscsi_proc_info, + .show_info = eesoxscsi_show_info, + .write_info = eesoxscsi_set_proc_info, .name = "EESOX SCSI", .info = eesoxscsi_info, .queuecommand = fas216_queue_command, diff --git a/drivers/scsi/arm/fas216.c b/drivers/scsi/arm/fas216.c index 737554c37d9e..b46a6f6c0eb3 100644 --- a/drivers/scsi/arm/fas216.c +++ b/drivers/scsi/arm/fas216.c @@ -2958,9 +2958,9 @@ void fas216_release(struct Scsi_Host *host) queue_free(&info->queues.issue); } -int fas216_print_host(FAS216_Info *info, char *buffer) +void fas216_print_host(FAS216_Info *info, struct seq_file *m) { - return sprintf(buffer, + seq_printf(m, "\n" "Chip : %s\n" " Address: 0x%p\n" @@ -2970,11 +2970,9 @@ int fas216_print_host(FAS216_Info *info, char *buffer) info->scsi.irq, info->scsi.dma); } -int fas216_print_stats(FAS216_Info *info, char *buffer) +void fas216_print_stats(FAS216_Info *info, struct seq_file *m) { - char *p = buffer; - - p += sprintf(p, "\n" + seq_printf(m, "\n" "Command Statistics:\n" " Queued : %u\n" " Issued : %u\n" @@ -2991,38 +2989,33 @@ int fas216_print_stats(FAS216_Info *info, char *buffer) info->stats.writes, info->stats.miscs, info->stats.disconnects, info->stats.aborts, info->stats.bus_resets, info->stats.host_resets); - - return p - buffer; } -int fas216_print_devices(FAS216_Info *info, char *buffer) +void fas216_print_devices(FAS216_Info *info, struct seq_file *m) { struct fas216_device *dev; struct scsi_device *scd; - char *p = buffer; - p += sprintf(p, "Device/Lun TaggedQ Parity Sync\n"); + seq_printf(m, "Device/Lun TaggedQ Parity Sync\n"); shost_for_each_device(scd, info->host) { dev = &info->device[scd->id]; - p += sprintf(p, " %d/%d ", scd->id, scd->lun); + seq_printf(m, " %d/%d ", scd->id, scd->lun); if (scd->tagged_supported) - p += sprintf(p, "%3sabled(%3d) ", + seq_printf(m, "%3sabled(%3d) ", scd->simple_tags ? "en" : "dis", scd->current_tag); else - p += sprintf(p, "unsupported "); + seq_printf(m, "unsupported "); - p += sprintf(p, "%3sabled ", dev->parity_enabled ? "en" : "dis"); + seq_printf(m, "%3sabled ", dev->parity_enabled ? "en" : "dis"); if (dev->sof) - p += sprintf(p, "offset %d, %d ns\n", + seq_printf(m, "offset %d, %d ns\n", dev->sof, dev->period * 4); else - p += sprintf(p, "async\n"); + seq_printf(m, "async\n"); } - - return p - buffer; } EXPORT_SYMBOL(fas216_init); diff --git a/drivers/scsi/arm/fas216.h b/drivers/scsi/arm/fas216.h index df2e1b3ddfe2..c57c16ef8193 100644 --- a/drivers/scsi/arm/fas216.h +++ b/drivers/scsi/arm/fas216.h @@ -358,9 +358,9 @@ extern void fas216_remove (struct Scsi_Host *instance); */ extern void fas216_release (struct Scsi_Host *instance); -extern int fas216_print_host(FAS216_Info *info, char *buffer); -extern int fas216_print_stats(FAS216_Info *info, char *buffer); -extern int fas216_print_devices(FAS216_Info *info, char *buffer); +extern void fas216_print_host(FAS216_Info *info, struct seq_file *m); +extern void fas216_print_stats(FAS216_Info *info, struct seq_file *m); +extern void fas216_print_devices(FAS216_Info *info, struct seq_file *m); /* Function: int fas216_eh_abort(struct scsi_cmnd *SCpnt) * Purpose : abort this command diff --git a/drivers/scsi/arm/powertec.c b/drivers/scsi/arm/powertec.c index 246600b93555..abc9593615e9 100644 --- a/drivers/scsi/arm/powertec.c +++ b/drivers/scsi/arm/powertec.c @@ -237,32 +237,20 @@ powertecscsi_set_proc_info(struct Scsi_Host *host, char *buffer, int length) * inout - 0 for reading, 1 for writing. * Returns : length of data written to buffer. */ -int powertecscsi_proc_info(struct Scsi_Host *host, char *buffer, char **start, off_t offset, - int length, int inout) +static int powertecscsi_show_info(struct seq_file *m, struct Scsi_Host *host) { struct powertec_info *info; - char *p = buffer; - int pos; - - if (inout == 1) - return powertecscsi_set_proc_info(host, buffer, length); info = (struct powertec_info *)host->hostdata; - p += sprintf(p, "PowerTec SCSI driver v%s\n", VERSION); - p += fas216_print_host(&info->info, p); - p += sprintf(p, "Term : o%s\n", + seq_printf(m, "PowerTec SCSI driver v%s\n", VERSION); + fas216_print_host(&info->info, m); + seq_printf(m, "Term : o%s\n", info->term_ctl ? "n" : "ff"); - p += fas216_print_stats(&info->info, p); - p += fas216_print_devices(&info->info, p); - - *start = buffer + offset; - pos = p - buffer - offset; - if (pos > length) - pos = length; - - return pos; + fas216_print_stats(&info->info, m); + fas216_print_devices(&info->info, m); + return 0; } static ssize_t powertecscsi_show_term(struct device *dev, struct device_attribute *attr, char *buf) @@ -291,7 +279,8 @@ static DEVICE_ATTR(bus_term, S_IRUGO | S_IWUSR, static struct scsi_host_template powertecscsi_template = { .module = THIS_MODULE, - .proc_info = powertecscsi_proc_info, + .show_info = powertecscsi_show_info, + .write_info = powertecscsi_set_proc_info, .name = "PowerTec SCSI", .info = powertecscsi_info, .queuecommand = fas216_queue_command, From 56b8e8e53523c9a3e1ffacadf35c389fdb427a34 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 31 Mar 2013 12:02:39 -0400 Subject: [PATCH 086/204] acornscsi: switch to ->show_info() Signed-off-by: Al Viro --- drivers/scsi/arm/acornscsi.c | 58 +++++++++++------------------------- 1 file changed, 17 insertions(+), 41 deletions(-) diff --git a/drivers/scsi/arm/acornscsi.c b/drivers/scsi/arm/acornscsi.c index 3e1172adb37b..09ba1869d366 100644 --- a/drivers/scsi/arm/acornscsi.c +++ b/drivers/scsi/arm/acornscsi.c @@ -2836,20 +2836,15 @@ char *acornscsi_info(struct Scsi_Host *host) return string; } -int acornscsi_proc_info(struct Scsi_Host *instance, char *buffer, char **start, off_t offset, - int length, int inout) +static int acornscsi_show_info(struct seq_file *m, struct Scsi_Host *instance) { - int pos, begin = 0, devidx; + int devidx; struct scsi_device *scd; AS_Host *host; - char *p = buffer; - - if (inout == 1) - return -EINVAL; host = (AS_Host *)instance->hostdata; - p += sprintf(p, "AcornSCSI driver v%d.%d.%d" + seq_printf(m, "AcornSCSI driver v%d.%d.%d" #ifdef CONFIG_SCSI_ACORNSCSI_SYNC " SYNC" #endif @@ -2864,14 +2859,14 @@ int acornscsi_proc_info(struct Scsi_Host *instance, char *buffer, char **start, #endif "\n\n", VER_MAJOR, VER_MINOR, VER_PATCH); - p += sprintf(p, "SBIC: WD33C93A Address: %p IRQ : %d\n", + seq_printf(m, "SBIC: WD33C93A Address: %p IRQ : %d\n", host->base + SBIC_REGIDX, host->scsi.irq); #ifdef USE_DMAC - p += sprintf(p, "DMAC: uPC71071 Address: %p IRQ : %d\n\n", + seq_printf(m, "DMAC: uPC71071 Address: %p IRQ : %d\n\n", host->base + DMAC_OFFSET, host->scsi.irq); #endif - p += sprintf(p, "Statistics:\n" + seq_printf(m, "Statistics:\n" "Queued commands: %-10u Issued commands: %-10u\n" "Done commands : %-10u Reads : %-10u\n" "Writes : %-10u Others : %-10u\n" @@ -2886,7 +2881,7 @@ int acornscsi_proc_info(struct Scsi_Host *instance, char *buffer, char **start, for (devidx = 0; devidx < 9; devidx ++) { unsigned int statptr, prev; - p += sprintf(p, "\n%c:", devidx == 8 ? 'H' : ('0' + devidx)); + seq_printf(m, "\n%c:", devidx == 8 ? 'H' : ('0' + devidx)); statptr = host->status_ptr[devidx] - 10; if ((signed int)statptr < 0) @@ -2896,7 +2891,7 @@ int acornscsi_proc_info(struct Scsi_Host *instance, char *buffer, char **start, for (; statptr != host->status_ptr[devidx]; statptr = (statptr + 1) & (STATUS_BUFFER_SIZE - 1)) { if (host->status[devidx][statptr].when) { - p += sprintf(p, "%c%02X:%02X+%2ld", + seq_printf(m, "%c%02X:%02X+%2ld", host->status[devidx][statptr].irq ? '-' : ' ', host->status[devidx][statptr].ph, host->status[devidx][statptr].ssr, @@ -2907,51 +2902,32 @@ int acornscsi_proc_info(struct Scsi_Host *instance, char *buffer, char **start, } } - p += sprintf(p, "\nAttached devices:\n"); + seq_printf(m, "\nAttached devices:\n"); shost_for_each_device(scd, instance) { - p += sprintf(p, "Device/Lun TaggedQ Sync\n"); - p += sprintf(p, " %d/%d ", scd->id, scd->lun); + seq_printf(m, "Device/Lun TaggedQ Sync\n"); + seq_printf(m, " %d/%d ", scd->id, scd->lun); if (scd->tagged_supported) - p += sprintf(p, "%3sabled(%3d) ", + seq_printf(m, "%3sabled(%3d) ", scd->simple_tags ? "en" : "dis", scd->current_tag); else - p += sprintf(p, "unsupported "); + seq_printf(m, "unsupported "); if (host->device[scd->id].sync_xfer & 15) - p += sprintf(p, "offset %d, %d ns\n", + seq_printf(m, "offset %d, %d ns\n", host->device[scd->id].sync_xfer & 15, acornscsi_getperiod(host->device[scd->id].sync_xfer)); else - p += sprintf(p, "async\n"); + seq_printf(m, "async\n"); - pos = p - buffer; - if (pos + begin < offset) { - begin += pos; - p = buffer; - } - pos = p - buffer; - if (pos + begin > offset + length) { - scsi_device_put(scd); - break; - } } - - pos = p - buffer; - - *start = buffer + (offset - begin); - pos -= offset - begin; - - if (pos > length) - pos = length; - - return pos; + return 0; } static struct scsi_host_template acornscsi_template = { .module = THIS_MODULE, - .proc_info = acornscsi_proc_info, + .show_info = acornscsi_show_info, .name = "AcornSCSI", .info = acornscsi_info, .queuecommand = acornscsi_queuecmd, From aacce706fae01dbef03a0c2ca40a363bcb88b24a Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 31 Mar 2013 12:15:44 -0400 Subject: [PATCH 087/204] ips: switch to ->show_info() Signed-off-by: Al Viro --- drivers/scsi/ips.c | 232 ++++++++++++++++----------------------------- drivers/scsi/ips.h | 9 -- 2 files changed, 80 insertions(+), 161 deletions(-) diff --git a/drivers/scsi/ips.c b/drivers/scsi/ips.c index 9aa86a315a08..3f9b335292da 100644 --- a/drivers/scsi/ips.c +++ b/drivers/scsi/ips.c @@ -326,10 +326,9 @@ static void ips_scmd_buf_write(struct scsi_cmnd * scmd, void *data, static void ips_scmd_buf_read(struct scsi_cmnd * scmd, void *data, unsigned int count); -static int ips_proc_info(struct Scsi_Host *, char *, char **, off_t, int, int); -static int ips_host_info(ips_ha_t *, char *, off_t, int); -static void copy_mem_info(IPS_INFOSTR *, char *, int); -static int copy_info(IPS_INFOSTR *, char *, ...); +static int ips_write_info(struct Scsi_Host *, char *, int); +static int ips_show_info(struct seq_file *, struct Scsi_Host *); +static int ips_host_info(ips_ha_t *, struct seq_file *); static int ips_abort_init(ips_ha_t * ha, int index); static int ips_init_phase2(int index); @@ -367,7 +366,8 @@ static struct scsi_host_template ips_driver_template = { .eh_abort_handler = ips_eh_abort, .eh_host_reset_handler = ips_eh_reset, .proc_name = "ips", - .proc_info = ips_proc_info, + .show_info = ips_show_info, + .write_info = ips_write_info, .slave_configure = ips_slave_configure, .bios_param = ips_biosparam, .this_id = -1, @@ -1433,25 +1433,12 @@ ips_info(struct Scsi_Host *SH) return (bp); } -/****************************************************************************/ -/* */ -/* Routine Name: ips_proc_info */ -/* */ -/* Routine Description: */ -/* */ -/* The passthru interface for the driver */ -/* */ -/****************************************************************************/ static int -ips_proc_info(struct Scsi_Host *host, char *buffer, char **start, off_t offset, - int length, int func) +ips_write_info(struct Scsi_Host *host, char *buffer, int length) { int i; - int ret; ips_ha_t *ha = NULL; - METHOD_TRACE("ips_proc_info", 1); - /* Find our host structure */ for (i = 0; i < ips_next_controller; i++) { if (ips_sh[i]) { @@ -1465,18 +1452,29 @@ ips_proc_info(struct Scsi_Host *host, char *buffer, char **start, off_t offset, if (!ha) return (-EINVAL); - if (func) { - /* write */ - return (0); - } else { - /* read */ - if (start) - *start = buffer; + return 0; +} - ret = ips_host_info(ha, buffer, offset, length); +static int +ips_show_info(struct seq_file *m, struct Scsi_Host *host) +{ + int i; + ips_ha_t *ha = NULL; - return (ret); + /* Find our host structure */ + for (i = 0; i < ips_next_controller; i++) { + if (ips_sh[i]) { + if (ips_sh[i] == host) { + ha = (ips_ha_t *) ips_sh[i]->hostdata; + break; + } + } } + + if (!ha) + return (-EINVAL); + + return ips_host_info(ha, m); } /*--------------------------------------------------------------------------*/ @@ -2035,183 +2033,113 @@ ips_cleanup_passthru(ips_ha_t * ha, ips_scb_t * scb) /* */ /****************************************************************************/ static int -ips_host_info(ips_ha_t * ha, char *ptr, off_t offset, int len) +ips_host_info(ips_ha_t *ha, struct seq_file *m) { - IPS_INFOSTR info; - METHOD_TRACE("ips_host_info", 1); - info.buffer = ptr; - info.length = len; - info.offset = offset; - info.pos = 0; - info.localpos = 0; - - copy_info(&info, "\nIBM ServeRAID General Information:\n\n"); + seq_printf(m, "\nIBM ServeRAID General Information:\n\n"); if ((le32_to_cpu(ha->nvram->signature) == IPS_NVRAM_P5_SIG) && (le16_to_cpu(ha->nvram->adapter_type) != 0)) - copy_info(&info, "\tController Type : %s\n", + seq_printf(m, "\tController Type : %s\n", ips_adapter_name[ha->ad_type - 1]); else - copy_info(&info, + seq_printf(m, "\tController Type : Unknown\n"); if (ha->io_addr) - copy_info(&info, + seq_printf(m, "\tIO region : 0x%lx (%d bytes)\n", ha->io_addr, ha->io_len); if (ha->mem_addr) { - copy_info(&info, + seq_printf(m, "\tMemory region : 0x%lx (%d bytes)\n", ha->mem_addr, ha->mem_len); - copy_info(&info, + seq_printf(m, "\tShared memory address : 0x%lx\n", ha->mem_ptr); } - copy_info(&info, "\tIRQ number : %d\n", ha->pcidev->irq); + seq_printf(m, "\tIRQ number : %d\n", ha->pcidev->irq); /* For the Next 3 lines Check for Binary 0 at the end and don't include it if it's there. */ /* That keeps everything happy for "text" operations on the proc file. */ if (le32_to_cpu(ha->nvram->signature) == IPS_NVRAM_P5_SIG) { if (ha->nvram->bios_low[3] == 0) { - copy_info(&info, - "\tBIOS Version : %c%c%c%c%c%c%c\n", - ha->nvram->bios_high[0], ha->nvram->bios_high[1], - ha->nvram->bios_high[2], ha->nvram->bios_high[3], - ha->nvram->bios_low[0], ha->nvram->bios_low[1], - ha->nvram->bios_low[2]); + seq_printf(m, + "\tBIOS Version : %c%c%c%c%c%c%c\n", + ha->nvram->bios_high[0], ha->nvram->bios_high[1], + ha->nvram->bios_high[2], ha->nvram->bios_high[3], + ha->nvram->bios_low[0], ha->nvram->bios_low[1], + ha->nvram->bios_low[2]); } else { - copy_info(&info, - "\tBIOS Version : %c%c%c%c%c%c%c%c\n", - ha->nvram->bios_high[0], ha->nvram->bios_high[1], - ha->nvram->bios_high[2], ha->nvram->bios_high[3], - ha->nvram->bios_low[0], ha->nvram->bios_low[1], - ha->nvram->bios_low[2], ha->nvram->bios_low[3]); + seq_printf(m, + "\tBIOS Version : %c%c%c%c%c%c%c%c\n", + ha->nvram->bios_high[0], ha->nvram->bios_high[1], + ha->nvram->bios_high[2], ha->nvram->bios_high[3], + ha->nvram->bios_low[0], ha->nvram->bios_low[1], + ha->nvram->bios_low[2], ha->nvram->bios_low[3]); } } if (ha->enq->CodeBlkVersion[7] == 0) { - copy_info(&info, - "\tFirmware Version : %c%c%c%c%c%c%c\n", - ha->enq->CodeBlkVersion[0], ha->enq->CodeBlkVersion[1], - ha->enq->CodeBlkVersion[2], ha->enq->CodeBlkVersion[3], - ha->enq->CodeBlkVersion[4], ha->enq->CodeBlkVersion[5], - ha->enq->CodeBlkVersion[6]); + seq_printf(m, + "\tFirmware Version : %c%c%c%c%c%c%c\n", + ha->enq->CodeBlkVersion[0], ha->enq->CodeBlkVersion[1], + ha->enq->CodeBlkVersion[2], ha->enq->CodeBlkVersion[3], + ha->enq->CodeBlkVersion[4], ha->enq->CodeBlkVersion[5], + ha->enq->CodeBlkVersion[6]); } else { - copy_info(&info, - "\tFirmware Version : %c%c%c%c%c%c%c%c\n", - ha->enq->CodeBlkVersion[0], ha->enq->CodeBlkVersion[1], - ha->enq->CodeBlkVersion[2], ha->enq->CodeBlkVersion[3], - ha->enq->CodeBlkVersion[4], ha->enq->CodeBlkVersion[5], - ha->enq->CodeBlkVersion[6], ha->enq->CodeBlkVersion[7]); + seq_printf(m, + "\tFirmware Version : %c%c%c%c%c%c%c%c\n", + ha->enq->CodeBlkVersion[0], ha->enq->CodeBlkVersion[1], + ha->enq->CodeBlkVersion[2], ha->enq->CodeBlkVersion[3], + ha->enq->CodeBlkVersion[4], ha->enq->CodeBlkVersion[5], + ha->enq->CodeBlkVersion[6], ha->enq->CodeBlkVersion[7]); } if (ha->enq->BootBlkVersion[7] == 0) { - copy_info(&info, - "\tBoot Block Version : %c%c%c%c%c%c%c\n", - ha->enq->BootBlkVersion[0], ha->enq->BootBlkVersion[1], - ha->enq->BootBlkVersion[2], ha->enq->BootBlkVersion[3], - ha->enq->BootBlkVersion[4], ha->enq->BootBlkVersion[5], - ha->enq->BootBlkVersion[6]); + seq_printf(m, + "\tBoot Block Version : %c%c%c%c%c%c%c\n", + ha->enq->BootBlkVersion[0], ha->enq->BootBlkVersion[1], + ha->enq->BootBlkVersion[2], ha->enq->BootBlkVersion[3], + ha->enq->BootBlkVersion[4], ha->enq->BootBlkVersion[5], + ha->enq->BootBlkVersion[6]); } else { - copy_info(&info, - "\tBoot Block Version : %c%c%c%c%c%c%c%c\n", - ha->enq->BootBlkVersion[0], ha->enq->BootBlkVersion[1], - ha->enq->BootBlkVersion[2], ha->enq->BootBlkVersion[3], - ha->enq->BootBlkVersion[4], ha->enq->BootBlkVersion[5], - ha->enq->BootBlkVersion[6], ha->enq->BootBlkVersion[7]); + seq_printf(m, + "\tBoot Block Version : %c%c%c%c%c%c%c%c\n", + ha->enq->BootBlkVersion[0], ha->enq->BootBlkVersion[1], + ha->enq->BootBlkVersion[2], ha->enq->BootBlkVersion[3], + ha->enq->BootBlkVersion[4], ha->enq->BootBlkVersion[5], + ha->enq->BootBlkVersion[6], ha->enq->BootBlkVersion[7]); } - copy_info(&info, "\tDriver Version : %s%s\n", + seq_printf(m, "\tDriver Version : %s%s\n", IPS_VERSION_HIGH, IPS_VERSION_LOW); - copy_info(&info, "\tDriver Build : %d\n", + seq_printf(m, "\tDriver Build : %d\n", IPS_BUILD_IDENT); - copy_info(&info, "\tMax Physical Devices : %d\n", + seq_printf(m, "\tMax Physical Devices : %d\n", ha->enq->ucMaxPhysicalDevices); - copy_info(&info, "\tMax Active Commands : %d\n", + seq_printf(m, "\tMax Active Commands : %d\n", ha->max_cmds); - copy_info(&info, "\tCurrent Queued Commands : %d\n", + seq_printf(m, "\tCurrent Queued Commands : %d\n", ha->scb_waitlist.count); - copy_info(&info, "\tCurrent Active Commands : %d\n", + seq_printf(m, "\tCurrent Active Commands : %d\n", ha->scb_activelist.count - ha->num_ioctl); - copy_info(&info, "\tCurrent Queued PT Commands : %d\n", + seq_printf(m, "\tCurrent Queued PT Commands : %d\n", ha->copp_waitlist.count); - copy_info(&info, "\tCurrent Active PT Commands : %d\n", + seq_printf(m, "\tCurrent Active PT Commands : %d\n", ha->num_ioctl); - copy_info(&info, "\n"); + seq_printf(m, "\n"); - return (info.localpos); -} - -/****************************************************************************/ -/* */ -/* Routine Name: copy_mem_info */ -/* */ -/* Routine Description: */ -/* */ -/* Copy data into an IPS_INFOSTR structure */ -/* */ -/****************************************************************************/ -static void -copy_mem_info(IPS_INFOSTR * info, char *data, int len) -{ - METHOD_TRACE("copy_mem_info", 1); - - if (info->pos + len < info->offset) { - info->pos += len; - return; - } - - if (info->pos < info->offset) { - data += (info->offset - info->pos); - len -= (info->offset - info->pos); - info->pos += (info->offset - info->pos); - } - - if (info->localpos + len > info->length) - len = info->length - info->localpos; - - if (len > 0) { - memcpy(info->buffer + info->localpos, data, len); - info->pos += len; - info->localpos += len; - } -} - -/****************************************************************************/ -/* */ -/* Routine Name: copy_info */ -/* */ -/* Routine Description: */ -/* */ -/* printf style wrapper for an info structure */ -/* */ -/****************************************************************************/ -static int -copy_info(IPS_INFOSTR * info, char *fmt, ...) -{ - va_list args; - char buf[128]; - int len; - - METHOD_TRACE("copy_info", 1); - - va_start(args, fmt); - len = vsprintf(buf, fmt, args); - va_end(args); - - copy_mem_info(info, buf, len); - - return (len); + return 0; } /****************************************************************************/ diff --git a/drivers/scsi/ips.h b/drivers/scsi/ips.h index f2df0593332b..45b9566b928e 100644 --- a/drivers/scsi/ips.h +++ b/drivers/scsi/ips.h @@ -416,7 +416,6 @@ /* * Scsi_Host Template */ - static int ips_proc_info(struct Scsi_Host *, char *, char **, off_t, int, int); static int ips_biosparam(struct scsi_device *sdev, struct block_device *bdev, sector_t capacity, int geom[]); static int ips_slave_configure(struct scsi_device *SDptr); @@ -959,14 +958,6 @@ typedef union { IPS_ENH_SG_LIST *enh_list; } IPS_SG_LIST; -typedef struct _IPS_INFOSTR { - char *buffer; - int length; - int offset; - int pos; - int localpos; -} IPS_INFOSTR; - typedef struct { char *option_name; int *option_flag; From 1bb7109a1c7dd6266db0240b7f344fbed20b9063 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 31 Mar 2013 12:17:09 -0400 Subject: [PATCH 088/204] ips: fix format bugs exposed by previous commit Signed-off-by: Al Viro --- drivers/scsi/ips.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/ips.c b/drivers/scsi/ips.c index 3f9b335292da..8d5ea8a1e5a6 100644 --- a/drivers/scsi/ips.c +++ b/drivers/scsi/ips.c @@ -2049,16 +2049,16 @@ ips_host_info(ips_ha_t *ha, struct seq_file *m) if (ha->io_addr) seq_printf(m, - "\tIO region : 0x%lx (%d bytes)\n", + "\tIO region : 0x%x (%d bytes)\n", ha->io_addr, ha->io_len); if (ha->mem_addr) { seq_printf(m, - "\tMemory region : 0x%lx (%d bytes)\n", + "\tMemory region : 0x%x (%d bytes)\n", ha->mem_addr, ha->mem_len); seq_printf(m, "\tShared memory address : 0x%lx\n", - ha->mem_ptr); + (unsigned long)ha->mem_ptr); } seq_printf(m, "\tIRQ number : %d\n", ha->pcidev->irq); From 3f02567750c302637dedbb4fb90682999a770122 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 31 Mar 2013 12:46:43 -0400 Subject: [PATCH 089/204] sata_svw: switch to ->show_info() Signed-off-by: Al Viro --- drivers/ata/sata_svw.c | 29 +++++++---------------------- 1 file changed, 7 insertions(+), 22 deletions(-) diff --git a/drivers/ata/sata_svw.c b/drivers/ata/sata_svw.c index 08608de87e4e..dc4f70179e7d 100644 --- a/drivers/ata/sata_svw.c +++ b/drivers/ata/sata_svw.c @@ -322,23 +322,11 @@ static u8 k2_stat_check_status(struct ata_port *ap) } #ifdef CONFIG_PPC_OF -/* - * k2_sata_proc_info - * inout : decides on the direction of the dataflow and the meaning of the - * variables - * buffer: If inout==FALSE data is being written to it else read from it - * *start: If inout==FALSE start of the valid data in the buffer - * offset: If inout==FALSE offset from the beginning of the imaginary file - * from which we start writing into the buffer - * length: If inout==FALSE max number of bytes to be written into the buffer - * else number of bytes in the buffer - */ -static int k2_sata_proc_info(struct Scsi_Host *shost, char *page, char **start, - off_t offset, int count, int inout) +static int k2_sata_show_info(struct seq_file *m, struct Scsi_Host *shost) { struct ata_port *ap; struct device_node *np; - int len, index; + int index; /* Find the ata_port */ ap = ata_shost_to_port(shost); @@ -356,15 +344,12 @@ static int k2_sata_proc_info(struct Scsi_Host *shost, char *page, char **start, const u32 *reg = of_get_property(np, "reg", NULL); if (!reg) continue; - if (index == *reg) + if (index == *reg) { + seq_printf(m, "devspec: %s\n", np->full_name); break; + } } - if (np == NULL) - return 0; - - len = sprintf(page, "devspec: %s\n", np->full_name); - - return len; + return 0; } #endif /* CONFIG_PPC_OF */ @@ -372,7 +357,7 @@ static int k2_sata_proc_info(struct Scsi_Host *shost, char *page, char **start, static struct scsi_host_template k2_sata_sht = { ATA_BMDMA_SHT(DRV_NAME), #ifdef CONFIG_PPC_OF - .proc_info = k2_sata_proc_info, + .show_info = k2_sata_show_info, #endif }; From f0002e95a43e05260310eca5522db44549f62069 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 31 Mar 2013 12:53:53 -0400 Subject: [PATCH 090/204] aix7xxx_old: switch to ->show_info() Signed-off-by: Al Viro --- drivers/scsi/aic7xxx_old.c | 2 +- drivers/scsi/aic7xxx_old/aic7xxx_proc.c | 221 +++++++----------------- 2 files changed, 60 insertions(+), 163 deletions(-) diff --git a/drivers/scsi/aic7xxx_old.c b/drivers/scsi/aic7xxx_old.c index 5b212f0df898..33ec9c643400 100644 --- a/drivers/scsi/aic7xxx_old.c +++ b/drivers/scsi/aic7xxx_old.c @@ -11108,7 +11108,7 @@ MODULE_VERSION(AIC7XXX_H_VERSION); static struct scsi_host_template driver_template = { - .proc_info = aic7xxx_proc_info, + .show_info = aic7xxx_show_info, .detect = aic7xxx_detect, .release = aic7xxx_release, .info = aic7xxx_info, diff --git a/drivers/scsi/aic7xxx_old/aic7xxx_proc.c b/drivers/scsi/aic7xxx_old/aic7xxx_proc.c index b07e4f04fd00..976f45ccf2cf 100644 --- a/drivers/scsi/aic7xxx_old/aic7xxx_proc.c +++ b/drivers/scsi/aic7xxx_old/aic7xxx_proc.c @@ -30,62 +30,23 @@ *-M*************************************************************************/ -#define BLS (&aic7xxx_buffer[size]) #define HDRB \ " 0 - 4K 4 - 16K 16 - 64K 64 - 256K 256K - 1M 1M+" -#ifdef PROC_DEBUG -extern int vsprintf(char *, const char *, va_list); - -static void -proc_debug(const char *fmt, ...) -{ - va_list ap; - char buf[256]; - - va_start(ap, fmt); - vsprintf(buf, fmt, ap); - printk(buf); - va_end(ap); -} -#else /* PROC_DEBUG */ -# define proc_debug(fmt, args...) -#endif /* PROC_DEBUG */ - -static int aic7xxx_buffer_size = 0; -static char *aic7xxx_buffer = NULL; - /*+F************************************************************************* * Function: - * aic7xxx_set_info - * - * Description: - * Set parameters for the driver from the /proc filesystem. - *-F*************************************************************************/ -static int -aic7xxx_set_info(char *buffer, int length, struct Scsi_Host *HBAptr) -{ - proc_debug("aic7xxx_set_info(): %s\n", buffer); - return (-ENOSYS); /* Currently this is a no-op */ -} - - -/*+F************************************************************************* - * Function: - * aic7xxx_proc_info + * aic7xxx_show_info * * Description: * Return information to handle /proc support for the driver. *-F*************************************************************************/ int -aic7xxx_proc_info ( struct Scsi_Host *HBAptr, char *buffer, char **start, off_t offset, int length, - int inout) +aic7xxx_show_info(struct seq_file *m, struct Scsi_Host *HBAptr) { struct aic7xxx_host *p; struct aic_dev_data *aic_dev; struct scsi_device *sdptr; - int size = 0; unsigned char i; unsigned char tindex; @@ -94,66 +55,21 @@ aic7xxx_proc_info ( struct Scsi_Host *HBAptr, char *buffer, char **start, off_t if (!p) { - size += sprintf(buffer, "Can't find adapter for host number %d\n", HBAptr->host_no); - if (size > length) - { - return (size); - } - else - { - return (length); - } - } - - if (inout == TRUE) /* Has data been written to the file? */ - { - return (aic7xxx_set_info(buffer, length, HBAptr)); + seq_printf(m, "Can't find adapter for host number %d\n", HBAptr->host_no); + return 0; } p = (struct aic7xxx_host *) HBAptr->hostdata; - /* - * It takes roughly 1K of space to hold all relevant card info, not - * counting any proc stats, so we start out with a 1.5k buffer size and - * if proc_stats is defined, then we sweep the stats structure to see - * how many drives we will be printing out for and add 384 bytes per - * device with active stats. - * - * Hmmmm...that 1.5k seems to keep growing as items get added so they - * can be easily viewed for debugging purposes. So, we bumped that - * 1.5k to 4k so we can quit having to bump it all the time. - */ - - size = 4096; - list_for_each_entry(aic_dev, &p->aic_devs, list) - size += 512; - if (aic7xxx_buffer_size != size) - { - if (aic7xxx_buffer != NULL) - { - kfree(aic7xxx_buffer); - aic7xxx_buffer_size = 0; - } - aic7xxx_buffer = kmalloc(size, GFP_KERNEL); - } - if (aic7xxx_buffer == NULL) - { - size = sprintf(buffer, "AIC7xxx - kmalloc error at line %d\n", - __LINE__); - return size; - } - aic7xxx_buffer_size = size; - - size = 0; - size += sprintf(BLS, "Adaptec AIC7xxx driver version: "); - size += sprintf(BLS, "%s/", AIC7XXX_C_VERSION); - size += sprintf(BLS, "%s", AIC7XXX_H_VERSION); - size += sprintf(BLS, "\n"); - size += sprintf(BLS, "Adapter Configuration:\n"); - size += sprintf(BLS, " SCSI Adapter: %s\n", + seq_printf(m, "Adaptec AIC7xxx driver version: "); + seq_printf(m, "%s/", AIC7XXX_C_VERSION); + seq_printf(m, "%s", AIC7XXX_H_VERSION); + seq_printf(m, "\n"); + seq_printf(m, "Adapter Configuration:\n"); + seq_printf(m, " SCSI Adapter: %s\n", board_names[p->board_name_index]); if (p->flags & AHC_TWIN) - size += sprintf(BLS, " Twin Channel Controller "); + seq_printf(m, " Twin Channel Controller "); else { char *channel = ""; @@ -184,86 +100,86 @@ aic7xxx_proc_info ( struct Scsi_Host *HBAptr, char *buffer, char **start, off_t ultra = "Ultra-2 LVD/SE "; else if (p->features & AHC_ULTRA) ultra = "Ultra "; - size += sprintf(BLS, " %s%sController%s ", + seq_printf(m, " %s%sController%s ", ultra, wide, channel); } switch(p->chip & ~AHC_CHIPID_MASK) { case AHC_VL: - size += sprintf(BLS, "at VLB slot %d\n", p->pci_device_fn); + seq_printf(m, "at VLB slot %d\n", p->pci_device_fn); break; case AHC_EISA: - size += sprintf(BLS, "at EISA slot %d\n", p->pci_device_fn); + seq_printf(m, "at EISA slot %d\n", p->pci_device_fn); break; default: - size += sprintf(BLS, "at PCI %d/%d/%d\n", p->pci_bus, + seq_printf(m, "at PCI %d/%d/%d\n", p->pci_bus, PCI_SLOT(p->pci_device_fn), PCI_FUNC(p->pci_device_fn)); break; } if( !(p->maddr) ) { - size += sprintf(BLS, " Programmed I/O Base: %lx\n", p->base); + seq_printf(m, " Programmed I/O Base: %lx\n", p->base); } else { - size += sprintf(BLS, " PCI MMAPed I/O Base: 0x%lx\n", p->mbase); + seq_printf(m, " PCI MMAPed I/O Base: 0x%lx\n", p->mbase); } if( (p->chip & (AHC_VL | AHC_EISA)) ) { - size += sprintf(BLS, " BIOS Memory Address: 0x%08x\n", p->bios_address); + seq_printf(m, " BIOS Memory Address: 0x%08x\n", p->bios_address); } - size += sprintf(BLS, " Adapter SEEPROM Config: %s\n", + seq_printf(m, " Adapter SEEPROM Config: %s\n", (p->flags & AHC_SEEPROM_FOUND) ? "SEEPROM found and used." : ((p->flags & AHC_USEDEFAULTS) ? "SEEPROM not found, using defaults." : "SEEPROM not found, using leftover BIOS values.") ); - size += sprintf(BLS, " Adaptec SCSI BIOS: %s\n", + seq_printf(m, " Adaptec SCSI BIOS: %s\n", (p->flags & AHC_BIOS_ENABLED) ? "Enabled" : "Disabled"); - size += sprintf(BLS, " IRQ: %d\n", HBAptr->irq); - size += sprintf(BLS, " SCBs: Active %d, Max Active %d,\n", + seq_printf(m, " IRQ: %d\n", HBAptr->irq); + seq_printf(m, " SCBs: Active %d, Max Active %d,\n", p->activescbs, p->max_activescbs); - size += sprintf(BLS, " Allocated %d, HW %d, " + seq_printf(m, " Allocated %d, HW %d, " "Page %d\n", p->scb_data->numscbs, p->scb_data->maxhscbs, p->scb_data->maxscbs); if (p->flags & AHC_EXTERNAL_SRAM) - size += sprintf(BLS, " Using External SCB SRAM\n"); - size += sprintf(BLS, " Interrupts: %ld", p->isr_count); + seq_printf(m, " Using External SCB SRAM\n"); + seq_printf(m, " Interrupts: %ld", p->isr_count); if (p->chip & AHC_EISA) { - size += sprintf(BLS, " %s\n", + seq_printf(m, " %s\n", (p->pause & IRQMS) ? "(Level Sensitive)" : "(Edge Triggered)"); } else { - size += sprintf(BLS, "\n"); + seq_printf(m, "\n"); } - size += sprintf(BLS, " BIOS Control Word: 0x%04x\n", + seq_printf(m, " BIOS Control Word: 0x%04x\n", p->bios_control); - size += sprintf(BLS, " Adapter Control Word: 0x%04x\n", + seq_printf(m, " Adapter Control Word: 0x%04x\n", p->adapter_control); - size += sprintf(BLS, " Extended Translation: %sabled\n", + seq_printf(m, " Extended Translation: %sabled\n", (p->flags & AHC_EXTEND_TRANS_A) ? "En" : "Dis"); - size += sprintf(BLS, "Disconnect Enable Flags: 0x%04x\n", p->discenable); + seq_printf(m, "Disconnect Enable Flags: 0x%04x\n", p->discenable); if (p->features & (AHC_ULTRA | AHC_ULTRA2)) { - size += sprintf(BLS, " Ultra Enable Flags: 0x%04x\n", p->ultraenb); + seq_printf(m, " Ultra Enable Flags: 0x%04x\n", p->ultraenb); } - size += sprintf(BLS, "Default Tag Queue Depth: %d\n", aic7xxx_default_queue_depth); - size += sprintf(BLS, " Tagged Queue By Device array for aic7xxx host " + seq_printf(m, "Default Tag Queue Depth: %d\n", aic7xxx_default_queue_depth); + seq_printf(m, " Tagged Queue By Device array for aic7xxx host " "instance %d:\n", p->instance); - size += sprintf(BLS, " {"); + seq_printf(m, " {"); for(i=0; i < (MAX_TARGETS - 1); i++) - size += sprintf(BLS, "%d,",aic7xxx_tag_info[p->instance].tag_commands[i]); - size += sprintf(BLS, "%d}\n",aic7xxx_tag_info[p->instance].tag_commands[i]); + seq_printf(m, "%d,",aic7xxx_tag_info[p->instance].tag_commands[i]); + seq_printf(m, "%d}\n",aic7xxx_tag_info[p->instance].tag_commands[i]); - size += sprintf(BLS, "\n"); - size += sprintf(BLS, "Statistics:\n\n"); + seq_printf(m, "\n"); + seq_printf(m, "Statistics:\n\n"); list_for_each_entry(aic_dev, &p->aic_devs, list) { sdptr = aic_dev->SDptr; tindex = sdptr->channel << 3 | sdptr->id; - size += sprintf(BLS, "(scsi%d:%d:%d:%d)\n", + seq_printf(m, "(scsi%d:%d:%d:%d)\n", p->host_no, sdptr->channel, sdptr->id, sdptr->lun); - size += sprintf(BLS, " Device using %s/%s", + seq_printf(m, " Device using %s/%s", (aic_dev->cur.width == MSG_EXT_WDTR_BUS_16_BIT) ? "Wide" : "Narrow", (aic_dev->cur.offset != 0) ? @@ -279,78 +195,59 @@ aic7xxx_proc_info ( struct Scsi_Host *HBAptr, char *buffer, char **start, off_t sync_rate = aic7xxx_find_syncrate(p, &period, 0, &options); if (sync_rate != NULL) { - size += sprintf(BLS, "%s MByte/sec, offset %d\n", + seq_printf(m, "%s MByte/sec, offset %d\n", sync_rate->rate[rate], aic_dev->cur.offset ); } else { - size += sprintf(BLS, "3.3 MByte/sec, offset %d\n", + seq_printf(m, "3.3 MByte/sec, offset %d\n", aic_dev->cur.offset ); } } - size += sprintf(BLS, " Transinfo settings: "); - size += sprintf(BLS, "current(%d/%d/%d/%d), ", + seq_printf(m, " Transinfo settings: "); + seq_printf(m, "current(%d/%d/%d/%d), ", aic_dev->cur.period, aic_dev->cur.offset, aic_dev->cur.width, aic_dev->cur.options); - size += sprintf(BLS, "goal(%d/%d/%d/%d), ", + seq_printf(m, "goal(%d/%d/%d/%d), ", aic_dev->goal.period, aic_dev->goal.offset, aic_dev->goal.width, aic_dev->goal.options); - size += sprintf(BLS, "user(%d/%d/%d/%d)\n", + seq_printf(m, "user(%d/%d/%d/%d)\n", p->user[tindex].period, p->user[tindex].offset, p->user[tindex].width, p->user[tindex].options); if(sdptr->simple_tags) { - size += sprintf(BLS, " Tagged Command Queueing Enabled, Ordered Tags %s, Depth %d/%d\n", sdptr->ordered_tags ? "Enabled" : "Disabled", sdptr->queue_depth, aic_dev->max_q_depth); + seq_printf(m, " Tagged Command Queueing Enabled, Ordered Tags %s, Depth %d/%d\n", sdptr->ordered_tags ? "Enabled" : "Disabled", sdptr->queue_depth, aic_dev->max_q_depth); } if(aic_dev->barrier_total) - size += sprintf(BLS, " Total transfers %ld:\n (%ld/%ld/%ld/%ld reads/writes/REQ_BARRIER/Ordered Tags)\n", + seq_printf(m, " Total transfers %ld:\n (%ld/%ld/%ld/%ld reads/writes/REQ_BARRIER/Ordered Tags)\n", aic_dev->r_total+aic_dev->w_total, aic_dev->r_total, aic_dev->w_total, aic_dev->barrier_total, aic_dev->ordered_total); else - size += sprintf(BLS, " Total transfers %ld:\n (%ld/%ld reads/writes)\n", + seq_printf(m, " Total transfers %ld:\n (%ld/%ld reads/writes)\n", aic_dev->r_total+aic_dev->w_total, aic_dev->r_total, aic_dev->w_total); - size += sprintf(BLS, "%s\n", HDRB); - size += sprintf(BLS, " Reads:"); + seq_printf(m, "%s\n", HDRB); + seq_printf(m, " Reads:"); for (i = 0; i < ARRAY_SIZE(aic_dev->r_bins); i++) { - size += sprintf(BLS, " %10ld", aic_dev->r_bins[i]); + seq_printf(m, " %10ld", aic_dev->r_bins[i]); } - size += sprintf(BLS, "\n"); - size += sprintf(BLS, " Writes:"); + seq_printf(m, "\n"); + seq_printf(m, " Writes:"); for (i = 0; i < ARRAY_SIZE(aic_dev->w_bins); i++) { - size += sprintf(BLS, " %10ld", aic_dev->w_bins[i]); + seq_printf(m, " %10ld", aic_dev->w_bins[i]); } - size += sprintf(BLS, "\n"); - size += sprintf(BLS, "\n\n"); + seq_printf(m, "\n"); + seq_printf(m, "\n\n"); } - if (size >= aic7xxx_buffer_size) - { - printk(KERN_WARNING "aic7xxx: Overflow in aic7xxx_proc.c\n"); - } - - if (offset > size - 1) - { - kfree(aic7xxx_buffer); - aic7xxx_buffer = NULL; - aic7xxx_buffer_size = length = 0; - *start = NULL; - } - else - { - *start = buffer; - length = min_t(int, length, size - offset); - memcpy(buffer, &aic7xxx_buffer[offset], length); - } - - return (length); + return 0; } /* From d89537e1b124ad661ea340798965a96e123cb211 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 31 Mar 2013 13:24:44 -0400 Subject: [PATCH 091/204] atari_scsi: switch to ->show_info() Signed-off-by: Al Viro --- drivers/scsi/atari_NCR5380.c | 149 +++++++++++++++-------------------- drivers/scsi/atari_scsi.c | 2 +- drivers/scsi/atari_scsi.h | 2 +- 3 files changed, 64 insertions(+), 89 deletions(-) diff --git a/drivers/scsi/atari_NCR5380.c b/drivers/scsi/atari_NCR5380.c index 2db79b469d9e..0f3cdbc80ba6 100644 --- a/drivers/scsi/atari_NCR5380.c +++ b/drivers/scsi/atari_NCR5380.c @@ -719,119 +719,94 @@ static void __init NCR5380_print_options(struct Scsi_Host *instance) * Inputs : instance, pointer to this instance. */ +static void lprint_Scsi_Cmnd(Scsi_Cmnd *cmd) +{ + int i, s; + unsigned char *command; + printk("scsi%d: destination target %d, lun %d\n", + H_NO(cmd), cmd->device->id, cmd->device->lun); + printk(KERN_CONT " command = "); + command = cmd->cmnd; + printk(KERN_CONT "%2d (0x%02x)", command[0], command[0]); + for (i = 1, s = COMMAND_SIZE(command[0]); i < s; ++i) + printk(KERN_CONT " %02x", command[i]); + printk("\n"); +} + static void NCR5380_print_status(struct Scsi_Host *instance) { - char *pr_bfr; - char *start; - int len; + struct NCR5380_hostdata *hostdata; + Scsi_Cmnd *ptr; + unsigned long flags; NCR_PRINT(NDEBUG_ANY); NCR_PRINT_PHASE(NDEBUG_ANY); - pr_bfr = (char *)__get_free_page(GFP_ATOMIC); - if (!pr_bfr) { - printk("NCR5380_print_status: no memory for print buffer\n"); - return; - } - len = NCR5380_proc_info(instance, pr_bfr, &start, 0, PAGE_SIZE, 0); - pr_bfr[len] = 0; - printk("\n%s\n", pr_bfr); - free_page((unsigned long)pr_bfr); -} - - -/******************************************/ -/* - * /proc/scsi/[dtc pas16 t128 generic]/[0-ASC_NUM_BOARD_SUPPORTED] - * - * *buffer: I/O buffer - * **start: if inout == FALSE pointer into buffer where user read should start - * offset: current offset - * length: length of buffer - * hostno: Scsi_Host host_no - * inout: TRUE - user is writing; FALSE - user is reading - * - * Return the number of bytes read from or written -*/ - -#undef SPRINTF -#define SPRINTF(fmt,args...) \ - do { \ - if (pos + strlen(fmt) + 20 /* slop */ < buffer + length) \ - pos += sprintf(pos, fmt , ## args); \ - } while(0) -static char *lprint_Scsi_Cmnd(Scsi_Cmnd *cmd, char *pos, char *buffer, int length); - -static int NCR5380_proc_info(struct Scsi_Host *instance, char *buffer, - char **start, off_t offset, int length, int inout) -{ - char *pos = buffer; - struct NCR5380_hostdata *hostdata; - Scsi_Cmnd *ptr; - unsigned long flags; - off_t begin = 0; -#define check_offset() \ - do { \ - if (pos - buffer < offset - begin) { \ - begin += pos - buffer; \ - pos = buffer; \ - } \ - } while (0) - hostdata = (struct NCR5380_hostdata *)instance->hostdata; - if (inout) /* Has data been written to the file ? */ - return -ENOSYS; /* Currently this is a no-op */ - SPRINTF("NCR5380 core release=%d.\n", NCR5380_PUBLIC_RELEASE); - check_offset(); + printk("\nNCR5380 core release=%d.\n", NCR5380_PUBLIC_RELEASE); local_irq_save(flags); - SPRINTF("NCR5380: coroutine is%s running.\n", + printk("NCR5380: coroutine is%s running.\n", main_running ? "" : "n't"); - check_offset(); if (!hostdata->connected) - SPRINTF("scsi%d: no currently connected command\n", HOSTNO); + printk("scsi%d: no currently connected command\n", HOSTNO); else - pos = lprint_Scsi_Cmnd((Scsi_Cmnd *) hostdata->connected, - pos, buffer, length); - SPRINTF("scsi%d: issue_queue\n", HOSTNO); - check_offset(); - for (ptr = (Scsi_Cmnd *)hostdata->issue_queue; ptr; ptr = NEXT(ptr)) { - pos = lprint_Scsi_Cmnd(ptr, pos, buffer, length); - check_offset(); - } + lprint_Scsi_Cmnd((Scsi_Cmnd *) hostdata->connected); + printk("scsi%d: issue_queue\n", HOSTNO); + for (ptr = (Scsi_Cmnd *)hostdata->issue_queue; ptr; ptr = NEXT(ptr)) + lprint_Scsi_Cmnd(ptr); - SPRINTF("scsi%d: disconnected_queue\n", HOSTNO); - check_offset(); + printk("scsi%d: disconnected_queue\n", HOSTNO); for (ptr = (Scsi_Cmnd *) hostdata->disconnected_queue; ptr; - ptr = NEXT(ptr)) { - pos = lprint_Scsi_Cmnd(ptr, pos, buffer, length); - check_offset(); - } + ptr = NEXT(ptr)) + lprint_Scsi_Cmnd(ptr); local_irq_restore(flags); - *start = buffer + (offset - begin); - if (pos - buffer < offset - begin) - return 0; - else if (pos - buffer - (offset - begin) < length) - return pos - buffer - (offset - begin); - return length; + printk("\n"); } -static char *lprint_Scsi_Cmnd(Scsi_Cmnd *cmd, char *pos, char *buffer, int length) +static void show_Scsi_Cmnd(Scsi_Cmnd *cmd, struct seq_file *m) { int i, s; unsigned char *command; - SPRINTF("scsi%d: destination target %d, lun %d\n", + seq_printf(m, "scsi%d: destination target %d, lun %d\n", H_NO(cmd), cmd->device->id, cmd->device->lun); - SPRINTF(" command = "); + seq_printf(m, " command = "); command = cmd->cmnd; - SPRINTF("%2d (0x%02x)", command[0], command[0]); + seq_printf(m, "%2d (0x%02x)", command[0], command[0]); for (i = 1, s = COMMAND_SIZE(command[0]); i < s; ++i) - SPRINTF(" %02x", command[i]); - SPRINTF("\n"); - return pos; + seq_printf(m, " %02x", command[i]); + seq_printf(m, "\n"); } +static int NCR5380_show_info(struct seq_file *m, struct Scsi_Host *instance) +{ + struct NCR5380_hostdata *hostdata; + Scsi_Cmnd *ptr; + unsigned long flags; + + hostdata = (struct NCR5380_hostdata *)instance->hostdata; + + seq_printf(m, "NCR5380 core release=%d.\n", NCR5380_PUBLIC_RELEASE); + local_irq_save(flags); + seq_printf(m, "NCR5380: coroutine is%s running.\n", + main_running ? "" : "n't"); + if (!hostdata->connected) + seq_printf(m, "scsi%d: no currently connected command\n", HOSTNO); + else + show_Scsi_Cmnd((Scsi_Cmnd *) hostdata->connected, m); + seq_printf(m, "scsi%d: issue_queue\n", HOSTNO); + for (ptr = (Scsi_Cmnd *)hostdata->issue_queue; ptr; ptr = NEXT(ptr)) + show_Scsi_Cmnd(ptr, m); + + seq_printf(m, "scsi%d: disconnected_queue\n", HOSTNO); + for (ptr = (Scsi_Cmnd *) hostdata->disconnected_queue; ptr; + ptr = NEXT(ptr)) + show_Scsi_Cmnd(ptr, m); + + local_irq_restore(flags); + return 0; +} /* * Function : void NCR5380_init (struct Scsi_Host *instance) diff --git a/drivers/scsi/atari_scsi.c b/drivers/scsi/atari_scsi.c index df740cbbaef4..a3e6c8a3ff0f 100644 --- a/drivers/scsi/atari_scsi.c +++ b/drivers/scsi/atari_scsi.c @@ -1100,7 +1100,7 @@ static void atari_scsi_falcon_reg_write(unsigned char reg, unsigned char value) #include "atari_NCR5380.c" static struct scsi_host_template driver_template = { - .proc_info = atari_scsi_proc_info, + .show_info = atari_scsi_show_info, .name = "Atari native SCSI", .detect = atari_scsi_detect, .release = atari_scsi_release, diff --git a/drivers/scsi/atari_scsi.h b/drivers/scsi/atari_scsi.h index bd52df78b209..11c624bb122d 100644 --- a/drivers/scsi/atari_scsi.h +++ b/drivers/scsi/atari_scsi.h @@ -47,7 +47,7 @@ #define NCR5380_intr atari_scsi_intr #define NCR5380_queue_command atari_scsi_queue_command #define NCR5380_abort atari_scsi_abort -#define NCR5380_proc_info atari_scsi_proc_info +#define NCR5380_show_info atari_scsi_show_info #define NCR5380_dma_read_setup(inst,d,c) atari_scsi_dma_setup (inst, d, c, 0) #define NCR5380_dma_write_setup(inst,d,c) atari_scsi_dma_setup (inst, d, c, 1) #define NCR5380_dma_residual(inst) atari_scsi_dma_residual( inst ) From 70ef457dc92bdd03c0c8d640fce45909166983a1 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 31 Mar 2013 13:27:56 -0400 Subject: [PATCH 092/204] scsi: bury ->proc_info() all users converted to ->show_info()/->write_info() Signed-off-by: Al Viro --- drivers/scsi/scsi_proc.c | 79 ++++------------------------------------ include/scsi/scsi_host.h | 3 +- 2 files changed, 9 insertions(+), 73 deletions(-) diff --git a/drivers/scsi/scsi_proc.c b/drivers/scsi/scsi_proc.c index 6f4c3cff03bb..1670ba7ad6af 100644 --- a/drivers/scsi/scsi_proc.c +++ b/drivers/scsi/scsi_proc.c @@ -45,58 +45,6 @@ static struct proc_dir_entry *proc_scsi; /* Protect sht->present and sht->proc_dir */ static DEFINE_MUTEX(global_host_template_mutex); -/** - * proc_scsi_read - handle read from /proc by calling host's proc_info() command - * @buffer: passed to proc_info - * @start: passed to proc_info - * @offset: passed to proc_info - * @length: passed to proc_info - * @eof: returns whether length read was less than requested - * @data: pointer to a &struct Scsi_Host - */ - -static int proc_scsi_read(char *buffer, char **start, off_t offset, - int length, int *eof, void *data) -{ - struct Scsi_Host *shost = data; - int n; - - n = shost->hostt->proc_info(shost, buffer, start, offset, length, 0); - *eof = (n < length); - - return n; -} - -/** - * proc_scsi_write_proc - Handle write to /proc by calling host's proc_info() - * @file: not used - * @buf: source of data to write. - * @count: number of bytes (at most PROC_BLOCK_SIZE) to write. - * @data: pointer to &struct Scsi_Host - */ -static int proc_scsi_write_proc(struct file *file, const char __user *buf, - unsigned long count, void *data) -{ - struct Scsi_Host *shost = data; - ssize_t ret = -ENOMEM; - char *page; - char *start; - - if (count > PROC_BLOCK_SIZE) - return -EOVERFLOW; - - page = (char *)__get_free_page(GFP_KERNEL); - if (page) { - ret = -EFAULT; - if (copy_from_user(page, buf, count)) - goto out; - ret = shost->hostt->proc_info(shost, page, &start, 0, count, 1); - } -out: - free_page((unsigned long)page); - return ret; -} - static ssize_t proc_scsi_host_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos) { @@ -149,7 +97,7 @@ static const struct file_operations proc_scsi_fops = { void scsi_proc_hostdir_add(struct scsi_host_template *sht) { - if (!sht->proc_info && !sht->show_info) + if (!sht->show_info) return; mutex_lock(&global_host_template_mutex); @@ -168,7 +116,7 @@ void scsi_proc_hostdir_add(struct scsi_host_template *sht) */ void scsi_proc_hostdir_rm(struct scsi_host_template *sht) { - if (!sht->proc_info && !sht->show_info) + if (!sht->show_info) return; mutex_lock(&global_host_template_mutex); @@ -194,23 +142,12 @@ void scsi_proc_host_add(struct Scsi_Host *shost) return; sprintf(name,"%d", shost->host_no); - if (sht->show_info) { - p = proc_create_data(name, S_IRUGO | S_IWUSR, - sht->proc_dir, &proc_scsi_fops, shost); - if (!p) - goto Fail; - return; - } - p = create_proc_read_entry(name, S_IFREG | S_IRUGO | S_IWUSR, - sht->proc_dir, proc_scsi_read, shost); - if (p) { - p->write_proc = proc_scsi_write_proc; - return; - } -Fail: - printk(KERN_ERR "%s: Failed to register host %d in" - "%s\n", __func__, shost->host_no, - sht->proc_name); + p = proc_create_data(name, S_IRUGO | S_IWUSR, + sht->proc_dir, &proc_scsi_fops, shost); + if (!p) + printk(KERN_ERR "%s: Failed to register host %d in" + "%s\n", __func__, shost->host_no, + sht->proc_name); } /** diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h index 70e08e442bfc..755243572219 100644 --- a/include/scsi/scsi_host.h +++ b/include/scsi/scsi_host.h @@ -341,7 +341,6 @@ struct scsi_host_template { * * Status: OBSOLETE */ - int (*proc_info)(struct Scsi_Host *, char *, char **, off_t, int, int); int (*show_info)(struct seq_file *, struct Scsi_Host *); int (*write_info)(struct Scsi_Host *, char *, int); @@ -378,7 +377,7 @@ struct scsi_host_template { /* * Used to store the procfs directory if a driver implements the - * proc_info or show_info method. + * show_info method. */ struct proc_dir_entry *proc_dir; From 2043f495c7c1a06f7748b5bcd17656d93c95e1a6 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 31 Mar 2013 13:43:23 -0400 Subject: [PATCH 093/204] new helper: single_open_size() Same as single_open(), but preallocates the buffer of given size. Doesn't make any sense for sizes up to PAGE_SIZE and doesn't make sense if output of show() exceeds PAGE_SIZE only rarely - seq_read() will take care of growing the buffer and redoing show(). If you _know_ that it will be large, it might make more sense to look into saner iterator, rather than go with single-shot one. If that's impossible, single_open_size() might be for you. Again, don't use that without a good reason; occasionally that's really the best way to go, but very often there are better solutions. Signed-off-by: Al Viro --- fs/seq_file.c | 18 ++++++++++++++++++ include/linux/seq_file.h | 1 + 2 files changed, 19 insertions(+) diff --git a/fs/seq_file.c b/fs/seq_file.c index 38bb59f3f2ad..774c1eb7f1c9 100644 --- a/fs/seq_file.c +++ b/fs/seq_file.c @@ -599,6 +599,24 @@ int single_open(struct file *file, int (*show)(struct seq_file *, void *), } EXPORT_SYMBOL(single_open); +int single_open_size(struct file *file, int (*show)(struct seq_file *, void *), + void *data, size_t size) +{ + char *buf = kmalloc(size, GFP_KERNEL); + int ret; + if (!buf) + return -ENOMEM; + ret = single_open(file, show, data); + if (ret) { + kfree(buf); + return ret; + } + ((struct seq_file *)file->private_data)->buf = buf; + ((struct seq_file *)file->private_data)->size = size; + return 0; +} +EXPORT_SYMBOL(single_open_size); + int single_release(struct inode *inode, struct file *file) { const struct seq_operations *op = ((struct seq_file *)file->private_data)->op; diff --git a/include/linux/seq_file.h b/include/linux/seq_file.h index 68a04a343cad..2da29ac178fc 100644 --- a/include/linux/seq_file.h +++ b/include/linux/seq_file.h @@ -123,6 +123,7 @@ static inline int seq_nodemask_list(struct seq_file *m, nodemask_t *mask) } int single_open(struct file *, int (*)(struct seq_file *, void *), void *); +int single_open_size(struct file *, int (*)(struct seq_file *, void *), void *, size_t); int single_release(struct inode *, struct file *); void *__seq_open_private(struct file *, const struct seq_operations *, int); int seq_open_private(struct file *, const struct seq_operations *, int); From 859d22f9c3924ab87b05ded8ba922abc298c1d43 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 31 Mar 2013 13:50:52 -0400 Subject: [PATCH 094/204] scsi_proc: make proc_scsi_host_open() preallocate a bigger buffer Some of the ->show_info() instances really spew a lot; it's not a problem wrt correctness (seq_read() will grow buffer and call the sucker again), but in this case it makes sense to start with a somewhat bigger one - they often do exceed one page worth of output. Signed-off-by: Al Viro --- drivers/scsi/scsi_proc.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/scsi_proc.c b/drivers/scsi/scsi_proc.c index 1670ba7ad6af..1eb34c34d7b9 100644 --- a/drivers/scsi/scsi_proc.c +++ b/drivers/scsi/scsi_proc.c @@ -78,7 +78,8 @@ static int proc_scsi_show(struct seq_file *m, void *v) static int proc_scsi_host_open(struct inode *inode, struct file *file) { - return single_open(file, proc_scsi_show, PDE(inode)->data); + return single_open_size(file, proc_scsi_show, PDE(inode)->data, + 4 * PAGE_SIZE); } static const struct file_operations proc_scsi_fops = { From 78846ce66d3e273a6937fddfd6752b3074c82e62 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 31 Mar 2013 15:07:00 -0400 Subject: [PATCH 095/204] rtl8192u: switch to proc_create() Signed-off-by: Al Viro --- .../rtl8192u/ieee80211/ieee80211_module.c | 55 ++++++++----------- 1 file changed, 23 insertions(+), 32 deletions(-) diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_module.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_module.c index 76c56e5aed79..e0870c05a5e0 100644 --- a/drivers/staging/rtl8192u/ieee80211/ieee80211_module.c +++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_module.c @@ -243,39 +243,34 @@ static int debug = \ ; struct proc_dir_entry *ieee80211_proc; -static int show_debug_level(char *page, char **start, off_t offset, - int count, int *eof, void *data) +static int show_debug_level(struct seq_file *m, void *v) { - return snprintf(page, count, "0x%08X\n", ieee80211_debug_level); + return seq_printf(m, "0x%08X\n", ieee80211_debug_level); } -static int store_debug_level(struct file *file, const char *buffer, - unsigned long count, void *data) +static ssize_t write_debug_level(struct file *file, const char __user *buffer, + size_t count, loff_t *ppos) { - char buf[] = "0x00000000"; - unsigned long len = min_t(unsigned long, sizeof(buf) - 1, count); - char *p = (char *)buf; unsigned long val; - - if (copy_from_user(buf, buffer, len)) - return count; - buf[len] = 0; - if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') { - p++; - if (p[0] == 'x' || p[0] == 'X') - p++; - val = simple_strtoul(p, &p, 16); - } else - val = simple_strtoul(p, &p, 10); - if (p == buf) - printk(KERN_INFO DRV_NAME - ": %s is not in hex or decimal form.\n", buf); - else - ieee80211_debug_level = val; - - return strnlen(buf, count); + int err = kstrtoul_from_user(buffer, count, 0, &val); + if (err) + return err; + ieee80211_debug_level = val; + return count; } +static int open_debug_level(struct inode *inode, struct file *file) +{ + return single_open(file, show_debug_level, NULL); +} + +static const struct file_operations fops = { + .open = open_debug_level, + .read = seq_read, + .llseek = seq_lseek, + .write = write_debug_level +}; + int __init ieee80211_debug_init(void) { struct proc_dir_entry *e; @@ -288,17 +283,13 @@ int __init ieee80211_debug_init(void) " proc directory\n"); return -EIO; } - e = create_proc_entry("debug_level", S_IFREG | S_IRUGO | S_IWUSR, - ieee80211_proc); + e = proc_create("debug_level", S_IRUGO | S_IWUSR, + ieee80211_proc, &fops); if (!e) { remove_proc_entry(DRV_NAME, init_net.proc_net); ieee80211_proc = NULL; return -EIO; } - e->read_proc = show_debug_level; - e->write_proc = store_debug_level; - e->data = NULL; - return 0; } From a69755b187749e7cc020e17127a54f395aea4eaa Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 31 Mar 2013 15:18:19 -0400 Subject: [PATCH 096/204] xtensa simdisk: switch to proc_create_data() Signed-off-by: Al Viro --- arch/xtensa/platforms/iss/simdisk.c | 36 ++++++++++++++++++----------- 1 file changed, 23 insertions(+), 13 deletions(-) diff --git a/arch/xtensa/platforms/iss/simdisk.c b/arch/xtensa/platforms/iss/simdisk.c index f58ffc3b68a8..47ccef7839c9 100644 --- a/arch/xtensa/platforms/iss/simdisk.c +++ b/arch/xtensa/platforms/iss/simdisk.c @@ -214,20 +214,27 @@ static int simdisk_detach(struct simdisk *dev) return err; } -static int proc_read_simdisk(char *page, char **start, off_t off, - int count, int *eof, void *data) +static ssize_t proc_read_simdisk(struct file *file, char __user *buf, + size_t size, loff_t *ppos) { - int len; - struct simdisk *dev = (struct simdisk *) data; - len = sprintf(page, "%s\n", dev->filename ? dev->filename : ""); - return len; + struct simdisk *dev = PDE(file_inode(file))->data; + char *s = dev->filename; + if (s) { + ssize_t n = simple_read_from_buffer(buf, size, ppos, + s, strlen(s)); + if (n < 0) + return n; + buf += n; + size -= n; + } + return simple_read_from_buffer(buf, size, ppos, "\n", 1); } -static int proc_write_simdisk(struct file *file, const char *buffer, - unsigned long count, void *data) +static ssize_t proc_write_simdisk(struct file *file, const char __user *buf, + size_t size, loff_t *ppos) { char *tmp = kmalloc(count + 1, GFP_KERNEL); - struct simdisk *dev = (struct simdisk *) data; + struct simdisk *dev = PDE(file_inode(file))->data; int err; if (tmp == NULL) @@ -256,6 +263,12 @@ static int proc_write_simdisk(struct file *file, const char *buffer, return err; } +static const struct file_operations fops = { + .read = proc_read_simdisk, + .write = proc_write_simdisk, + .llseek = default_llseek, +}; + static int __init simdisk_setup(struct simdisk *dev, int which, struct proc_dir_entry *procdir) { @@ -289,10 +302,7 @@ static int __init simdisk_setup(struct simdisk *dev, int which, set_capacity(dev->gd, 0); add_disk(dev->gd); - dev->procfile = create_proc_entry(tmp, 0644, procdir); - dev->procfile->data = dev; - dev->procfile->read_proc = proc_read_simdisk; - dev->procfile->write_proc = proc_write_simdisk; + dev->procfile = proc_create_data(tmp, 0644, procdir, &fops, dev); return 0; out_alloc_disk: From ff9046ac92aa89d5ba3e94515baf172e79bd5395 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 31 Mar 2013 15:29:21 -0400 Subject: [PATCH 097/204] bfin_adv7393: switch to proc_create_data() Signed-off-by: Al Viro --- drivers/video/bfin_adv7393fb.c | 43 +++++++++++++++------------------- 1 file changed, 19 insertions(+), 24 deletions(-) diff --git a/drivers/video/bfin_adv7393fb.c b/drivers/video/bfin_adv7393fb.c index 8d411a3c9966..b65c1f9dc154 100644 --- a/drivers/video/bfin_adv7393fb.c +++ b/drivers/video/bfin_adv7393fb.c @@ -333,29 +333,23 @@ static int proc_output(char *buf) return p - buf; } -static int -adv7393_read_proc(char *page, char **start, off_t off, - int count, int *eof, void *data) +static ssize_t +adv7393_read_proc(struct file *file, char __user *buf, + size_t size, loff_t *ppos) { - int len; - - len = proc_output(page); - if (len <= off + count) - *eof = 1; - *start = page + off; - len -= off; - if (len > count) - len = count; - if (len < 0) - len = 0; - return len; + static const char message[] = "Usage:\n" + "echo 0x[REG][Value] > adv7393\n" + "example: echo 0x1234 >adv7393\n" + "writes 0x34 into Register 0x12\n"; + return simple_read_from_buffer(buf, size, ppos, message, + sizeof(message)); } -static int +static ssize_t adv7393_write_proc(struct file *file, const char __user * buffer, - size_t count, void *data) + size_t count, loff_t *ppos) { - struct adv7393fb_device *fbdev = data; + struct adv7393fb_device *fbdev = PDE(file_inode(file))->data; unsigned int val; int ret; @@ -368,6 +362,12 @@ adv7393_write_proc(struct file *file, const char __user * buffer, return count; } +static const struct file_operations fops = { + .read = adv7393_read_proc, + .write = adv7393_write_proc, + .llseek = default_llseek, +}; + static int bfin_adv7393_fb_probe(struct i2c_client *client, const struct i2c_device_id *id) { @@ -506,17 +506,12 @@ static int bfin_adv7393_fb_probe(struct i2c_client *client, fbdev->info.node, fbdev->info.fix.id); dev_info(&client->dev, "fb memory address : 0x%p\n", fbdev->fb_mem); - entry = create_proc_entry("driver/adv7393", 0, NULL); + entry = proc_create_data("driver/adv7393", 0, NULL, &fops, fbdev); if (!entry) { dev_err(&client->dev, "unable to create /proc entry\n"); ret = -EFAULT; goto free_fb; } - - entry->read_proc = adv7393_read_proc; - entry->write_proc = adv7393_write_proc; - entry->data = fbdev; - return 0; free_fb: From ee21ed0afc2f47007fbd8b22928ecb17316e13e2 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 31 Mar 2013 15:30:40 -0400 Subject: [PATCH 098/204] procfs: kill ->write_proc() Signed-off-by: Al Viro --- fs/proc/generic.c | 25 ------------------------- include/linux/proc_fs.h | 1 - 2 files changed, 26 deletions(-) diff --git a/fs/proc/generic.c b/fs/proc/generic.c index 6bce60703c76..51fcb201e289 100644 --- a/fs/proc/generic.c +++ b/fs/proc/generic.c @@ -196,30 +196,6 @@ proc_file_read(struct file *file, char __user *buf, size_t nbytes, return rv; } -static ssize_t -proc_file_write(struct file *file, const char __user *buffer, - size_t count, loff_t *ppos) -{ - struct proc_dir_entry *pde = PDE(file_inode(file)); - ssize_t rv = -EIO; - - if (pde->write_proc) { - spin_lock(&pde->pde_unload_lock); - if (!pde->proc_fops) { - spin_unlock(&pde->pde_unload_lock); - return rv; - } - pde->pde_users++; - spin_unlock(&pde->pde_unload_lock); - - /* FIXME: does this routine need ppos? probably... */ - rv = pde->write_proc(file, buffer, count, pde->data); - pde_users_dec(pde); - } - return rv; -} - - static loff_t proc_file_lseek(struct file *file, loff_t offset, int orig) { @@ -239,7 +215,6 @@ proc_file_lseek(struct file *file, loff_t offset, int orig) static const struct file_operations proc_file_operations = { .llseek = proc_file_lseek, .read = proc_file_read, - .write = proc_file_write, }; static int proc_notify_change(struct dentry *dentry, struct iattr *iattr) diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h index 94dfb2aa5533..4f4137a0bd8a 100644 --- a/include/linux/proc_fs.h +++ b/include/linux/proc_fs.h @@ -72,7 +72,6 @@ struct proc_dir_entry { struct proc_dir_entry *next, *parent, *subdir; void *data; read_proc_t *read_proc; - write_proc_t *write_proc; atomic_t count; /* use count */ int pde_users; /* number of callers into module in progress */ struct completion *pde_unload_completion; From 8510e30b46cd5467b2f930bef68a276dbc2c7d7c Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 31 Mar 2013 15:41:41 -0400 Subject: [PATCH 099/204] last_radio_log: switch to proc_create() Signed-off-by: Al Viro --- arch/arm/mach-msm/last_radio_log.c | 20 ++++---------------- 1 file changed, 4 insertions(+), 16 deletions(-) diff --git a/arch/arm/mach-msm/last_radio_log.c b/arch/arm/mach-msm/last_radio_log.c index 1e243f46a969..7777767ee89a 100644 --- a/arch/arm/mach-msm/last_radio_log.c +++ b/arch/arm/mach-msm/last_radio_log.c @@ -31,20 +31,8 @@ extern void *smem_item(unsigned id, unsigned *size); static ssize_t last_radio_log_read(struct file *file, char __user *buf, size_t len, loff_t *offset) { - loff_t pos = *offset; - ssize_t count; - - if (pos >= radio_log_size) - return 0; - - count = min(len, (size_t)(radio_log_size - pos)); - if (copy_to_user(buf, radio_log_base + pos, count)) { - pr_err("%s: copy to user failed\n", __func__); - return -EFAULT; - } - - *offset += count; - return count; + return simple_read_from_buffer(buf, len, offset, + radio_log_base, radio_log_size); } static struct file_operations last_radio_log_fops = { @@ -67,7 +55,8 @@ void msm_init_last_radio_log(struct module *owner) return; } - entry = create_proc_entry("last_radio_log", S_IFREG | S_IRUGO, NULL); + entry = proc_create("last_radio_log", S_IRUGO, NULL, + &last_radio_log_fops); if (!entry) { pr_err("%s: could not create proc entry for radio log\n", __func__); @@ -77,7 +66,6 @@ void msm_init_last_radio_log(struct module *owner) pr_err("%s: last radio log is %d bytes long\n", __func__, radio_log_size); last_radio_log_fops.owner = owner; - entry->proc_fops = &last_radio_log_fops; entry->size = radio_log_size; } EXPORT_SYMBOL(msm_init_last_radio_log); From d9dda78bad879595d8c4220a067fc029d6484a16 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 31 Mar 2013 18:16:14 -0400 Subject: [PATCH 100/204] procfs: new helper - PDE_DATA(inode) The only part of proc_dir_entry the code outside of fs/proc really cares about is PDE(inode)->data. Provide a helper for that; static inline for now, eventually will be moved to fs/proc, along with the knowledge of struct proc_dir_entry layout. Signed-off-by: Al Viro --- arch/alpha/kernel/srm_env.c | 4 +-- arch/arm/kernel/atags_proc.c | 2 +- arch/blackfin/kernel/cplbinfo.c | 4 +-- arch/ia64/kernel/salinfo.c | 18 ++++------- arch/mips/lasat/picvue_proc.c | 4 +-- arch/powerpc/kernel/proc_powerpc.c | 19 +++++------- arch/powerpc/platforms/pseries/scanlog.c | 9 ++---- arch/sh/mm/alignment.c | 2 +- arch/sparc/kernel/ioport.c | 2 +- arch/tile/kernel/hardwall.c | 2 +- arch/xtensa/platforms/iss/simdisk.c | 4 +-- drivers/acpi/ac.c | 2 +- drivers/acpi/battery.c | 2 +- drivers/acpi/button.c | 2 +- drivers/acpi/proc.c | 4 +-- drivers/acpi/sbs.c | 8 ++--- drivers/block/DAC960.c | 8 ++--- drivers/block/cciss.c | 2 +- drivers/block/cpqarray.c | 2 +- drivers/block/drbd/drbd_proc.c | 2 +- drivers/block/pktcdvd.c | 2 +- drivers/block/ps3vram.c | 2 +- drivers/char/ipmi/ipmi_msghandler.c | 6 ++-- drivers/char/ipmi/ipmi_si_intf.c | 6 ++-- drivers/gpu/drm/drm_proc.c | 2 +- drivers/ide/ide-cd.c | 2 +- drivers/ide/ide-disk_proc.c | 8 ++--- drivers/ide/ide-floppy_proc.c | 2 +- drivers/ide/ide-proc.c | 22 +++++++------- drivers/ide/ide-tape.c | 2 +- drivers/isdn/gigaset/capi.c | 2 +- drivers/isdn/hardware/avm/b1.c | 2 +- drivers/isdn/hardware/avm/b1dma.c | 2 +- drivers/isdn/hardware/avm/c4.c | 2 +- drivers/isdn/hardware/eicon/divasproc.c | 12 ++++---- drivers/isdn/hysdn/hycapi.c | 2 +- drivers/isdn/hysdn/hysdn_procconf.c | 4 +-- drivers/isdn/hysdn/hysdn_proclog.c | 8 ++--- drivers/macintosh/via-pmu.c | 2 +- drivers/media/pci/zoran/zoran_procfs.c | 4 +-- drivers/message/fusion/mptbase.c | 4 +-- drivers/message/i2o/i2o_proc.c | 38 ++++++++++++------------ drivers/net/bonding/bond_procfs.c | 4 +-- drivers/net/irda/vlsi_ir.c | 2 +- drivers/net/wireless/airo.c | 33 +++++++------------- drivers/net/wireless/ray_cs.c | 2 +- drivers/parisc/led.c | 4 +-- drivers/pci/proc.c | 20 +++++-------- drivers/platform/x86/thinkpad_acpi.c | 4 +-- drivers/platform/x86/toshiba_acpi.c | 18 +++++------ drivers/pnp/isapnp/proc.c | 4 +-- drivers/pnp/pnpbios/proc.c | 4 +-- drivers/rtc/rtc-proc.c | 2 +- drivers/scsi/scsi_proc.c | 4 +-- drivers/staging/ccg/rndis.c | 4 +-- drivers/staging/dgrp/dgrp_dpa_ops.c | 9 +----- drivers/staging/dgrp/dgrp_mon_ops.c | 9 +----- drivers/staging/dgrp/dgrp_net_ops.c | 9 +----- drivers/staging/dgrp/dgrp_ports_ops.c | 2 +- drivers/staging/silicom/bpctl_mod.c | 38 ++++++++++++------------ drivers/tty/serial/serial_core.c | 2 +- drivers/usb/gadget/at91_udc.c | 2 +- drivers/usb/gadget/lpc32xx_udc.c | 2 +- drivers/usb/gadget/rndis.c | 4 +-- drivers/usb/host/isp1362-hcd.c | 2 +- drivers/usb/host/sl811-hcd.c | 2 +- drivers/video/bfin_adv7393fb.c | 2 +- drivers/zorro/proc.c | 4 +-- fs/afs/proc.c | 8 ++--- fs/ext4/mballoc.c | 2 +- fs/ext4/super.c | 2 +- fs/jbd2/journal.c | 2 +- fs/proc/generic.c | 2 +- fs/proc/proc_devtree.c | 2 +- include/linux/proc_fs.h | 5 ++++ ipc/util.c | 2 +- kernel/irq/proc.c | 14 ++++----- net/8021q/vlanproc.c | 2 +- net/atm/proc.c | 2 +- net/bluetooth/af_bluetooth.c | 2 +- net/bluetooth/cmtp/capi.c | 2 +- net/can/bcm.c | 2 +- net/can/proc.c | 2 +- net/core/neighbour.c | 2 +- net/core/pktgen.c | 6 ++-- net/ipv4/netfilter/ipt_CLUSTERIP.c | 6 ++-- net/ipv4/tcp_ipv4.c | 2 +- net/ipv4/udp.c | 2 +- net/ipv6/proc.c | 2 +- net/netfilter/x_tables.c | 6 ++-- net/netfilter/xt_hashlimit.c | 2 +- net/netfilter/xt_recent.c | 6 ++-- net/sunrpc/cache.c | 24 +++++++-------- net/sunrpc/stats.c | 2 +- sound/core/info.c | 4 +-- 95 files changed, 243 insertions(+), 302 deletions(-) diff --git a/arch/alpha/kernel/srm_env.c b/arch/alpha/kernel/srm_env.c index e64559f0a82d..ef8769b6c98b 100644 --- a/arch/alpha/kernel/srm_env.c +++ b/arch/alpha/kernel/srm_env.c @@ -104,14 +104,14 @@ static int srm_env_proc_show(struct seq_file *m, void *v) static int srm_env_proc_open(struct inode *inode, struct file *file) { - return single_open(file, srm_env_proc_show, PDE(inode)->data); + return single_open(file, srm_env_proc_show, PDE_DATA(inode)); } static ssize_t srm_env_proc_write(struct file *file, const char __user *buffer, size_t count, loff_t *pos) { int res; - srm_env_t *entry = PDE(file_inode(file))->data; + srm_env_t *entry = PDE_DATA(file_inode(file)); char *buf = (char *) __get_free_page(GFP_USER); unsigned long ret1, ret2; diff --git a/arch/arm/kernel/atags_proc.c b/arch/arm/kernel/atags_proc.c index 8c00f75bf1ab..c7ff8073416f 100644 --- a/arch/arm/kernel/atags_proc.c +++ b/arch/arm/kernel/atags_proc.c @@ -12,7 +12,7 @@ struct buffer { static ssize_t atags_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) { - struct buffer *b = PDE(file_inode(file))->data; + struct buffer *b = PDE_DATA(file_inode(file)); return simple_read_from_buffer(buf, count, ppos, b->data, b->size); } diff --git a/arch/blackfin/kernel/cplbinfo.c b/arch/blackfin/kernel/cplbinfo.c index e1d0b24c6070..404045dcc5e4 100644 --- a/arch/blackfin/kernel/cplbinfo.c +++ b/arch/blackfin/kernel/cplbinfo.c @@ -116,14 +116,12 @@ static const struct seq_operations cplbinfo_sops = { static int cplbinfo_open(struct inode *inode, struct file *file) { - struct proc_dir_entry *pde = PDE(file_inode(file)); char cplb_type; - unsigned int cpu; + unsigned int cpu = (unsigned long)PDE_DATA(file_inode(file)); int ret; struct seq_file *m; struct cplbinfo_data *cdata; - cpu = (unsigned int)pde->data; cplb_type = cpu & CPLBINFO_DCPLB_FLAG ? 'D' : 'I'; cpu &= ~CPLBINFO_DCPLB_FLAG; diff --git a/arch/ia64/kernel/salinfo.c b/arch/ia64/kernel/salinfo.c index aa527d7e91f2..a97d75b9c5ec 100644 --- a/arch/ia64/kernel/salinfo.c +++ b/arch/ia64/kernel/salinfo.c @@ -301,9 +301,7 @@ salinfo_event_open(struct inode *inode, struct file *file) static ssize_t salinfo_event_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos) { - struct inode *inode = file_inode(file); - struct proc_dir_entry *entry = PDE(inode); - struct salinfo_data *data = entry->data; + struct salinfo_data *data = PDE_DATA(file_inode(file)); char cmd[32]; size_t size; int i, n, cpu = -1; @@ -360,8 +358,7 @@ static const struct file_operations salinfo_event_fops = { static int salinfo_log_open(struct inode *inode, struct file *file) { - struct proc_dir_entry *entry = PDE(inode); - struct salinfo_data *data = entry->data; + struct salinfo_data *data = PDE_DATA(inode); if (!capable(CAP_SYS_ADMIN)) return -EPERM; @@ -386,8 +383,7 @@ salinfo_log_open(struct inode *inode, struct file *file) static int salinfo_log_release(struct inode *inode, struct file *file) { - struct proc_dir_entry *entry = PDE(inode); - struct salinfo_data *data = entry->data; + struct salinfo_data *data = PDE_DATA(inode); if (data->state == STATE_NO_DATA) { vfree(data->log_buffer); @@ -463,9 +459,7 @@ salinfo_log_new_read(int cpu, struct salinfo_data *data) static ssize_t salinfo_log_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos) { - struct inode *inode = file_inode(file); - struct proc_dir_entry *entry = PDE(inode); - struct salinfo_data *data = entry->data; + struct salinfo_data *data = PDE_DATA(file_inode(file)); u8 *buf; u64 bufsize; @@ -524,9 +518,7 @@ salinfo_log_clear(struct salinfo_data *data, int cpu) static ssize_t salinfo_log_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos) { - struct inode *inode = file_inode(file); - struct proc_dir_entry *entry = PDE(inode); - struct salinfo_data *data = entry->data; + struct salinfo_data *data = PDE_DATA(file_inode(file)); char cmd[32]; size_t size; u32 offset; diff --git a/arch/mips/lasat/picvue_proc.c b/arch/mips/lasat/picvue_proc.c index c592bc8b8c99..638c5db122c9 100644 --- a/arch/mips/lasat/picvue_proc.c +++ b/arch/mips/lasat/picvue_proc.c @@ -58,13 +58,13 @@ static int pvc_line_proc_show(struct seq_file *m, void *v) static int pvc_line_proc_open(struct inode *inode, struct file *file) { - return single_open(file, pvc_line_proc_show, PDE(inode)->data); + return single_open(file, pvc_line_proc_show, PDE_DATA(inode)); } static ssize_t pvc_line_proc_write(struct file *file, const char __user *buf, size_t count, loff_t *pos) { - int lineno = *(int *)PDE(file_inode(file))->data; + int lineno = *(int *)PDE_DATA(file_inode(file)); char kbuf[PVC_LINELEN]; size_t len; diff --git a/arch/powerpc/kernel/proc_powerpc.c b/arch/powerpc/kernel/proc_powerpc.c index f19d0bdc3241..41d8ee9c82f1 100644 --- a/arch/powerpc/kernel/proc_powerpc.c +++ b/arch/powerpc/kernel/proc_powerpc.c @@ -32,8 +32,6 @@ static loff_t page_map_seek( struct file *file, loff_t off, int whence) { loff_t new; - struct proc_dir_entry *dp = PDE(file_inode(file)); - switch(whence) { case 0: new = off; @@ -42,12 +40,12 @@ static loff_t page_map_seek( struct file *file, loff_t off, int whence) new = file->f_pos + off; break; case 2: - new = dp->size + off; + new = PAGE_SIZE + off; break; default: return -EINVAL; } - if ( new < 0 || new > dp->size ) + if ( new < 0 || new > PAGE_SIZE ) return -EINVAL; return (file->f_pos = new); } @@ -55,19 +53,18 @@ static loff_t page_map_seek( struct file *file, loff_t off, int whence) static ssize_t page_map_read( struct file *file, char __user *buf, size_t nbytes, loff_t *ppos) { - struct proc_dir_entry *dp = PDE(file_inode(file)); - return simple_read_from_buffer(buf, nbytes, ppos, dp->data, dp->size); + return simple_read_from_buffer(buf, nbytes, ppos, + PDE_DATA(file_inode(file)), PAGE_SIZE); } static int page_map_mmap( struct file *file, struct vm_area_struct *vma ) { - struct proc_dir_entry *dp = PDE(file_inode(file)); - - if ((vma->vm_end - vma->vm_start) > dp->size) + if ((vma->vm_end - vma->vm_start) > PAGE_SIZE) return -EINVAL; - remap_pfn_range(vma, vma->vm_start, __pa(dp->data) >> PAGE_SHIFT, - dp->size, vma->vm_page_prot); + remap_pfn_range(vma, vma->vm_start, + __pa(PDE_DATA(file_inode(file))) >> PAGE_SHIFT, + PAGE_SIZE, vma->vm_page_prot); return 0; } diff --git a/arch/powerpc/platforms/pseries/scanlog.c b/arch/powerpc/platforms/pseries/scanlog.c index 47f3cda2a68b..cc220d2061b2 100644 --- a/arch/powerpc/platforms/pseries/scanlog.c +++ b/arch/powerpc/platforms/pseries/scanlog.c @@ -46,8 +46,7 @@ static struct proc_dir_entry *proc_ppc64_scan_log_dump; /* The proc file */ static ssize_t scanlog_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) { - struct proc_dir_entry *dp = PDE(file_inode(file)); - unsigned int *data = (unsigned int *)dp->data; + unsigned int *data = PDE_DATA(file_inode(file)); int status; unsigned long len, off; unsigned int wait_time; @@ -135,8 +134,7 @@ static ssize_t scanlog_write(struct file * file, const char __user * buf, static int scanlog_open(struct inode * inode, struct file * file) { - struct proc_dir_entry *dp = PDE(inode); - unsigned int *data = (unsigned int *)dp->data; + unsigned int *data = PDE_DATA(file_inode(file)); if (data[0] != 0) { /* This imperfect test stops a second copy of the @@ -152,8 +150,7 @@ static int scanlog_open(struct inode * inode, struct file * file) static int scanlog_release(struct inode * inode, struct file * file) { - struct proc_dir_entry *dp = PDE(inode); - unsigned int *data = (unsigned int *)dp->data; + unsigned int *data = PDE_DATA(file_inode(file)); data[0] = 0; diff --git a/arch/sh/mm/alignment.c b/arch/sh/mm/alignment.c index aea14855e656..ec2b25302427 100644 --- a/arch/sh/mm/alignment.c +++ b/arch/sh/mm/alignment.c @@ -140,7 +140,7 @@ static int alignment_proc_open(struct inode *inode, struct file *file) static ssize_t alignment_proc_write(struct file *file, const char __user *buffer, size_t count, loff_t *pos) { - int *data = PDE(file_inode(file))->data; + int *data = PDE_DATA(file_inode(file)); char mode; if (count > 0) { diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c index 0f094db918c7..2096468de9b2 100644 --- a/arch/sparc/kernel/ioport.c +++ b/arch/sparc/kernel/ioport.c @@ -693,7 +693,7 @@ static int sparc_io_proc_show(struct seq_file *m, void *v) static int sparc_io_proc_open(struct inode *inode, struct file *file) { - return single_open(file, sparc_io_proc_show, PDE(inode)->data); + return single_open(file, sparc_io_proc_show, PDE_DATA(inode)); } static const struct file_operations sparc_io_proc_fops = { diff --git a/arch/tile/kernel/hardwall.c b/arch/tile/kernel/hardwall.c index 20273ee37deb..38ac189d9575 100644 --- a/arch/tile/kernel/hardwall.c +++ b/arch/tile/kernel/hardwall.c @@ -914,7 +914,7 @@ static int hardwall_proc_show(struct seq_file *sf, void *v) static int hardwall_proc_open(struct inode *inode, struct file *file) { - return single_open(file, hardwall_proc_show, PDE(inode)->data); + return single_open(file, hardwall_proc_show, PDE_DATA(inode)); } static const struct file_operations hardwall_proc_fops = { diff --git a/arch/xtensa/platforms/iss/simdisk.c b/arch/xtensa/platforms/iss/simdisk.c index 47ccef7839c9..4a06d70ddf5e 100644 --- a/arch/xtensa/platforms/iss/simdisk.c +++ b/arch/xtensa/platforms/iss/simdisk.c @@ -217,7 +217,7 @@ static int simdisk_detach(struct simdisk *dev) static ssize_t proc_read_simdisk(struct file *file, char __user *buf, size_t size, loff_t *ppos) { - struct simdisk *dev = PDE(file_inode(file))->data; + struct simdisk *dev = PDE_DATA(file_inode(file)); char *s = dev->filename; if (s) { ssize_t n = simple_read_from_buffer(buf, size, ppos, @@ -234,7 +234,7 @@ static ssize_t proc_write_simdisk(struct file *file, const char __user *buf, size_t size, loff_t *ppos) { char *tmp = kmalloc(count + 1, GFP_KERNEL); - struct simdisk *dev = PDE(file_inode(file))->data; + struct simdisk *dev = PDE_DATA(file_inode(file)); int err; if (tmp == NULL) diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c index 6d5bf649196d..00d2efd674df 100644 --- a/drivers/acpi/ac.c +++ b/drivers/acpi/ac.c @@ -194,7 +194,7 @@ static int acpi_ac_seq_show(struct seq_file *seq, void *offset) static int acpi_ac_open_fs(struct inode *inode, struct file *file) { - return single_open(file, acpi_ac_seq_show, PDE(inode)->data); + return single_open(file, acpi_ac_seq_show, PDE_DATA(inode)); } static int acpi_ac_add_fs(struct acpi_device *device) diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c index c5cd5b5513e6..169ced7e540d 100644 --- a/drivers/acpi/battery.c +++ b/drivers/acpi/battery.c @@ -929,7 +929,7 @@ static int acpi_battery_read_##_name(struct seq_file *seq, void *offset) \ } \ static int acpi_battery_##_name##_open_fs(struct inode *inode, struct file *file) \ { \ - return single_open(file, acpi_battery_read_##_name, PDE(inode)->data); \ + return single_open(file, acpi_battery_read_##_name, PDE_DATA(inode)); \ } DECLARE_FILE_FUNCTIONS(info); diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c index 86c7d5445c38..5d57cd513f4f 100644 --- a/drivers/acpi/button.c +++ b/drivers/acpi/button.c @@ -128,7 +128,7 @@ static int acpi_button_state_seq_show(struct seq_file *seq, void *offset) static int acpi_button_state_open_fs(struct inode *inode, struct file *file) { - return single_open(file, acpi_button_state_seq_show, PDE(inode)->data); + return single_open(file, acpi_button_state_seq_show, PDE_DATA(inode)); } static const struct file_operations acpi_button_state_fops = { diff --git a/drivers/acpi/proc.c b/drivers/acpi/proc.c index 52ce76725c20..aa1227a7e3f2 100644 --- a/drivers/acpi/proc.c +++ b/drivers/acpi/proc.c @@ -120,7 +120,7 @@ static int acpi_system_alarm_seq_show(struct seq_file *seq, void *offset) static int acpi_system_alarm_open_fs(struct inode *inode, struct file *file) { - return single_open(file, acpi_system_alarm_seq_show, PDE(inode)->data); + return single_open(file, acpi_system_alarm_seq_show, PDE_DATA(inode)); } static int get_date_field(char **p, u32 * value) @@ -397,7 +397,7 @@ static int acpi_system_wakeup_device_open_fs(struct inode *inode, struct file *file) { return single_open(file, acpi_system_wakeup_device_seq_show, - PDE(inode)->data); + PDE_DATA(inode)); } static const struct file_operations acpi_system_wakeup_device_fops = { diff --git a/drivers/acpi/sbs.c b/drivers/acpi/sbs.c index e523245643ac..a296e08d76b6 100644 --- a/drivers/acpi/sbs.c +++ b/drivers/acpi/sbs.c @@ -584,7 +584,7 @@ static int acpi_battery_read_info(struct seq_file *seq, void *offset) static int acpi_battery_info_open_fs(struct inode *inode, struct file *file) { - return single_open(file, acpi_battery_read_info, PDE(inode)->data); + return single_open(file, acpi_battery_read_info, PDE_DATA(inode)); } static int acpi_battery_read_state(struct seq_file *seq, void *offset) @@ -623,7 +623,7 @@ static int acpi_battery_read_state(struct seq_file *seq, void *offset) static int acpi_battery_state_open_fs(struct inode *inode, struct file *file) { - return single_open(file, acpi_battery_read_state, PDE(inode)->data); + return single_open(file, acpi_battery_read_state, PDE_DATA(inode)); } static int acpi_battery_read_alarm(struct seq_file *seq, void *offset) @@ -688,7 +688,7 @@ acpi_battery_write_alarm(struct file *file, const char __user * buffer, static int acpi_battery_alarm_open_fs(struct inode *inode, struct file *file) { - return single_open(file, acpi_battery_read_alarm, PDE(inode)->data); + return single_open(file, acpi_battery_read_alarm, PDE_DATA(inode)); } static const struct file_operations acpi_battery_info_fops = { @@ -736,7 +736,7 @@ static int acpi_ac_read_state(struct seq_file *seq, void *offset) static int acpi_ac_state_open_fs(struct inode *inode, struct file *file) { - return single_open(file, acpi_ac_read_state, PDE(inode)->data); + return single_open(file, acpi_ac_read_state, PDE_DATA(inode)); } static const struct file_operations acpi_ac_state_fops = { diff --git a/drivers/block/DAC960.c b/drivers/block/DAC960.c index 5b5ee79ff236..eb3950113e42 100644 --- a/drivers/block/DAC960.c +++ b/drivers/block/DAC960.c @@ -6473,7 +6473,7 @@ static int dac960_initial_status_proc_show(struct seq_file *m, void *v) static int dac960_initial_status_proc_open(struct inode *inode, struct file *file) { - return single_open(file, dac960_initial_status_proc_show, PDE(inode)->data); + return single_open(file, dac960_initial_status_proc_show, PDE_DATA(inode)); } static const struct file_operations dac960_initial_status_proc_fops = { @@ -6519,7 +6519,7 @@ static int dac960_current_status_proc_show(struct seq_file *m, void *v) static int dac960_current_status_proc_open(struct inode *inode, struct file *file) { - return single_open(file, dac960_current_status_proc_show, PDE(inode)->data); + return single_open(file, dac960_current_status_proc_show, PDE_DATA(inode)); } static const struct file_operations dac960_current_status_proc_fops = { @@ -6540,14 +6540,14 @@ static int dac960_user_command_proc_show(struct seq_file *m, void *v) static int dac960_user_command_proc_open(struct inode *inode, struct file *file) { - return single_open(file, dac960_user_command_proc_show, PDE(inode)->data); + return single_open(file, dac960_user_command_proc_show, PDE_DATA(inode)); } static ssize_t dac960_user_command_proc_write(struct file *file, const char __user *Buffer, size_t Count, loff_t *pos) { - DAC960_Controller_T *Controller = (DAC960_Controller_T *) PDE(file_inode(file))->data; + DAC960_Controller_T *Controller = PDE_DATA(file_inode(file)); unsigned char CommandBuffer[80]; int Length; if (Count > sizeof(CommandBuffer)-1) return -EINVAL; diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c index ade58bc8f3c4..d150fe1248bf 100644 --- a/drivers/block/cciss.c +++ b/drivers/block/cciss.c @@ -493,7 +493,7 @@ static int cciss_seq_open(struct inode *inode, struct file *file) struct seq_file *seq = file->private_data; if (!ret) - seq->private = PDE(inode)->data; + seq->private = PDE_DATA(inode); return ret; } diff --git a/drivers/block/cpqarray.c b/drivers/block/cpqarray.c index 3f087133a25a..3b9e8ebcb96b 100644 --- a/drivers/block/cpqarray.c +++ b/drivers/block/cpqarray.c @@ -296,7 +296,7 @@ static int ida_proc_show(struct seq_file *m, void *v) static int ida_proc_open(struct inode *inode, struct file *file) { - return single_open(file, ida_proc_show, PDE(inode)->data); + return single_open(file, ida_proc_show, PDE_DATA(inode)); } static const struct file_operations ida_proc_fops = { diff --git a/drivers/block/drbd/drbd_proc.c b/drivers/block/drbd/drbd_proc.c index 56672a61eb94..928adb815b09 100644 --- a/drivers/block/drbd/drbd_proc.c +++ b/drivers/block/drbd/drbd_proc.c @@ -314,7 +314,7 @@ static int drbd_seq_show(struct seq_file *seq, void *v) static int drbd_proc_open(struct inode *inode, struct file *file) { if (try_module_get(THIS_MODULE)) - return single_open(file, drbd_seq_show, PDE(inode)->data); + return single_open(file, drbd_seq_show, PDE_DATA(inode)); return -ENODEV; } diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c index 2e7de7a59bfc..e0588c6dd86f 100644 --- a/drivers/block/pktcdvd.c +++ b/drivers/block/pktcdvd.c @@ -2648,7 +2648,7 @@ static int pkt_seq_show(struct seq_file *m, void *p) static int pkt_seq_open(struct inode *inode, struct file *file) { - return single_open(file, pkt_seq_show, PDE(inode)->data); + return single_open(file, pkt_seq_show, PDE_DATA(inode)); } static const struct file_operations pkt_proc_fops = { diff --git a/drivers/block/ps3vram.c b/drivers/block/ps3vram.c index 75e112d66006..06a2e53e5f37 100644 --- a/drivers/block/ps3vram.c +++ b/drivers/block/ps3vram.c @@ -525,7 +525,7 @@ static int ps3vram_proc_show(struct seq_file *m, void *v) static int ps3vram_proc_open(struct inode *inode, struct file *file) { - return single_open(file, ps3vram_proc_show, PDE(inode)->data); + return single_open(file, ps3vram_proc_show, PDE_DATA(inode)); } static const struct file_operations ps3vram_proc_fops = { diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c index 053201b062a4..1420bbbe1a61 100644 --- a/drivers/char/ipmi/ipmi_msghandler.c +++ b/drivers/char/ipmi/ipmi_msghandler.c @@ -1917,7 +1917,7 @@ static int smi_ipmb_proc_show(struct seq_file *m, void *v) static int smi_ipmb_proc_open(struct inode *inode, struct file *file) { - return single_open(file, smi_ipmb_proc_show, PDE(inode)->data); + return single_open(file, smi_ipmb_proc_show, PDE_DATA(inode)); } static const struct file_operations smi_ipmb_proc_ops = { @@ -1938,7 +1938,7 @@ static int smi_version_proc_show(struct seq_file *m, void *v) static int smi_version_proc_open(struct inode *inode, struct file *file) { - return single_open(file, smi_version_proc_show, PDE(inode)->data); + return single_open(file, smi_version_proc_show, PDE_DATA(inode)); } static const struct file_operations smi_version_proc_ops = { @@ -2013,7 +2013,7 @@ static int smi_stats_proc_show(struct seq_file *m, void *v) static int smi_stats_proc_open(struct inode *inode, struct file *file) { - return single_open(file, smi_stats_proc_show, PDE(inode)->data); + return single_open(file, smi_stats_proc_show, PDE_DATA(inode)); } static const struct file_operations smi_stats_proc_ops = { diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c index 0ac9b45a585e..313538abe63c 100644 --- a/drivers/char/ipmi/ipmi_si_intf.c +++ b/drivers/char/ipmi/ipmi_si_intf.c @@ -2839,7 +2839,7 @@ static int smi_type_proc_show(struct seq_file *m, void *v) static int smi_type_proc_open(struct inode *inode, struct file *file) { - return single_open(file, smi_type_proc_show, PDE(inode)->data); + return single_open(file, smi_type_proc_show, PDE_DATA(inode)); } static const struct file_operations smi_type_proc_ops = { @@ -2882,7 +2882,7 @@ static int smi_si_stats_proc_show(struct seq_file *m, void *v) static int smi_si_stats_proc_open(struct inode *inode, struct file *file) { - return single_open(file, smi_si_stats_proc_show, PDE(inode)->data); + return single_open(file, smi_si_stats_proc_show, PDE_DATA(inode)); } static const struct file_operations smi_si_stats_proc_ops = { @@ -2910,7 +2910,7 @@ static int smi_params_proc_show(struct seq_file *m, void *v) static int smi_params_proc_open(struct inode *inode, struct file *file) { - return single_open(file, smi_params_proc_show, PDE(inode)->data); + return single_open(file, smi_params_proc_show, PDE_DATA(inode)); } static const struct file_operations smi_params_proc_ops = { diff --git a/drivers/gpu/drm/drm_proc.c b/drivers/gpu/drm/drm_proc.c index ff5456b7df72..e06431897f4e 100644 --- a/drivers/gpu/drm/drm_proc.c +++ b/drivers/gpu/drm/drm_proc.c @@ -63,7 +63,7 @@ static struct drm_info_list drm_proc_list[] = { static int drm_proc_open(struct inode *inode, struct file *file) { - struct drm_info_node* node = PDE(inode)->data; + struct drm_info_node* node = PDE_DATA(inode); return single_open(file, node->info_ent->show, node); } diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c index 8126824daccb..b23113926388 100644 --- a/drivers/ide/ide-cd.c +++ b/drivers/ide/ide-cd.c @@ -1408,7 +1408,7 @@ static int idecd_capacity_proc_show(struct seq_file *m, void *v) static int idecd_capacity_proc_open(struct inode *inode, struct file *file) { - return single_open(file, idecd_capacity_proc_show, PDE(inode)->data); + return single_open(file, idecd_capacity_proc_show, PDE_DATA(inode)); } static const struct file_operations idecd_capacity_proc_fops = { diff --git a/drivers/ide/ide-disk_proc.c b/drivers/ide/ide-disk_proc.c index 8b570a17bcd9..0d1fae6cba6d 100644 --- a/drivers/ide/ide-disk_proc.c +++ b/drivers/ide/ide-disk_proc.c @@ -53,7 +53,7 @@ static int idedisk_cache_proc_show(struct seq_file *m, void *v) static int idedisk_cache_proc_open(struct inode *inode, struct file *file) { - return single_open(file, idedisk_cache_proc_show, PDE(inode)->data); + return single_open(file, idedisk_cache_proc_show, PDE_DATA(inode)); } static const struct file_operations idedisk_cache_proc_fops = { @@ -74,7 +74,7 @@ static int idedisk_capacity_proc_show(struct seq_file *m, void *v) static int idedisk_capacity_proc_open(struct inode *inode, struct file *file) { - return single_open(file, idedisk_capacity_proc_show, PDE(inode)->data); + return single_open(file, idedisk_capacity_proc_show, PDE_DATA(inode)); } static const struct file_operations idedisk_capacity_proc_fops = { @@ -115,7 +115,7 @@ static int idedisk_sv_proc_show(struct seq_file *m, void *v) static int idedisk_sv_proc_open(struct inode *inode, struct file *file) { - return single_open(file, idedisk_sv_proc_show, PDE(inode)->data); + return single_open(file, idedisk_sv_proc_show, PDE_DATA(inode)); } static const struct file_operations idedisk_sv_proc_fops = { @@ -133,7 +133,7 @@ static int idedisk_st_proc_show(struct seq_file *m, void *v) static int idedisk_st_proc_open(struct inode *inode, struct file *file) { - return single_open(file, idedisk_st_proc_show, PDE(inode)->data); + return single_open(file, idedisk_st_proc_show, PDE_DATA(inode)); } static const struct file_operations idedisk_st_proc_fops = { diff --git a/drivers/ide/ide-floppy_proc.c b/drivers/ide/ide-floppy_proc.c index 1600720f3e86..e7a25ea757df 100644 --- a/drivers/ide/ide-floppy_proc.c +++ b/drivers/ide/ide-floppy_proc.c @@ -15,7 +15,7 @@ static int idefloppy_capacity_proc_show(struct seq_file *m, void *v) static int idefloppy_capacity_proc_open(struct inode *inode, struct file *file) { - return single_open(file, idefloppy_capacity_proc_show, PDE(inode)->data); + return single_open(file, idefloppy_capacity_proc_show, PDE_DATA(inode)); } static const struct file_operations idefloppy_capacity_proc_fops = { diff --git a/drivers/ide/ide-proc.c b/drivers/ide/ide-proc.c index 2abcc4790f12..97c070077774 100644 --- a/drivers/ide/ide-proc.c +++ b/drivers/ide/ide-proc.c @@ -58,7 +58,7 @@ static int ide_imodel_proc_show(struct seq_file *m, void *v) static int ide_imodel_proc_open(struct inode *inode, struct file *file) { - return single_open(file, ide_imodel_proc_show, PDE(inode)->data); + return single_open(file, ide_imodel_proc_show, PDE_DATA(inode)); } static const struct file_operations ide_imodel_proc_fops = { @@ -82,7 +82,7 @@ static int ide_mate_proc_show(struct seq_file *m, void *v) static int ide_mate_proc_open(struct inode *inode, struct file *file) { - return single_open(file, ide_mate_proc_show, PDE(inode)->data); + return single_open(file, ide_mate_proc_show, PDE_DATA(inode)); } static const struct file_operations ide_mate_proc_fops = { @@ -103,7 +103,7 @@ static int ide_channel_proc_show(struct seq_file *m, void *v) static int ide_channel_proc_open(struct inode *inode, struct file *file) { - return single_open(file, ide_channel_proc_show, PDE(inode)->data); + return single_open(file, ide_channel_proc_show, PDE_DATA(inode)); } static const struct file_operations ide_channel_proc_fops = { @@ -143,7 +143,7 @@ static int ide_identify_proc_show(struct seq_file *m, void *v) static int ide_identify_proc_open(struct inode *inode, struct file *file) { - return single_open(file, ide_identify_proc_show, PDE(inode)->data); + return single_open(file, ide_identify_proc_show, PDE_DATA(inode)); } static const struct file_operations ide_identify_proc_fops = { @@ -325,7 +325,7 @@ static int ide_settings_proc_show(struct seq_file *m, void *v) static int ide_settings_proc_open(struct inode *inode, struct file *file) { - return single_open(file, ide_settings_proc_show, PDE(inode)->data); + return single_open(file, ide_settings_proc_show, PDE_DATA(inode)); } #define MAX_LEN 30 @@ -333,7 +333,7 @@ static int ide_settings_proc_open(struct inode *inode, struct file *file) static ssize_t ide_settings_proc_write(struct file *file, const char __user *buffer, size_t count, loff_t *pos) { - ide_drive_t *drive = (ide_drive_t *) PDE(file_inode(file))->data; + ide_drive_t *drive = PDE_DATA(file_inode(file)); char name[MAX_LEN + 1]; int for_real = 0, mul_factor, div_factor; unsigned long n; @@ -474,7 +474,7 @@ static int ide_geometry_proc_show(struct seq_file *m, void *v) static int ide_geometry_proc_open(struct inode *inode, struct file *file) { - return single_open(file, ide_geometry_proc_show, PDE(inode)->data); + return single_open(file, ide_geometry_proc_show, PDE_DATA(inode)); } const struct file_operations ide_geometry_proc_fops = { @@ -497,7 +497,7 @@ static int ide_dmodel_proc_show(struct seq_file *seq, void *v) static int ide_dmodel_proc_open(struct inode *inode, struct file *file) { - return single_open(file, ide_dmodel_proc_show, PDE(inode)->data); + return single_open(file, ide_dmodel_proc_show, PDE_DATA(inode)); } static const struct file_operations ide_dmodel_proc_fops = { @@ -525,7 +525,7 @@ static int ide_driver_proc_show(struct seq_file *m, void *v) static int ide_driver_proc_open(struct inode *inode, struct file *file) { - return single_open(file, ide_driver_proc_show, PDE(inode)->data); + return single_open(file, ide_driver_proc_show, PDE_DATA(inode)); } static int ide_replace_subdriver(ide_drive_t *drive, const char *driver) @@ -558,7 +558,7 @@ static int ide_replace_subdriver(ide_drive_t *drive, const char *driver) static ssize_t ide_driver_proc_write(struct file *file, const char __user *buffer, size_t count, loff_t *pos) { - ide_drive_t *drive = (ide_drive_t *) PDE(file_inode(file))->data; + ide_drive_t *drive = PDE_DATA(file_inode(file)); char name[32]; if (!capable(CAP_SYS_ADMIN)) @@ -601,7 +601,7 @@ static int ide_media_proc_show(struct seq_file *m, void *v) static int ide_media_proc_open(struct inode *inode, struct file *file) { - return single_open(file, ide_media_proc_show, PDE(inode)->data); + return single_open(file, ide_media_proc_show, PDE_DATA(inode)); } static const struct file_operations ide_media_proc_fops = { diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c index ce8237d36159..89f859591bbb 100644 --- a/drivers/ide/ide-tape.c +++ b/drivers/ide/ide-tape.c @@ -1847,7 +1847,7 @@ static int idetape_name_proc_show(struct seq_file *m, void *v) static int idetape_name_proc_open(struct inode *inode, struct file *file) { - return single_open(file, idetape_name_proc_show, PDE(inode)->data); + return single_open(file, idetape_name_proc_show, PDE_DATA(inode)); } static const struct file_operations idetape_name_proc_fops = { diff --git a/drivers/isdn/gigaset/capi.c b/drivers/isdn/gigaset/capi.c index 03a0a01a4054..3286903a95d2 100644 --- a/drivers/isdn/gigaset/capi.c +++ b/drivers/isdn/gigaset/capi.c @@ -2334,7 +2334,7 @@ static int gigaset_proc_show(struct seq_file *m, void *v) static int gigaset_proc_open(struct inode *inode, struct file *file) { - return single_open(file, gigaset_proc_show, PDE(inode)->data); + return single_open(file, gigaset_proc_show, PDE_DATA(inode)); } static const struct file_operations gigaset_proc_fops = { diff --git a/drivers/isdn/hardware/avm/b1.c b/drivers/isdn/hardware/avm/b1.c index 821f7ac33b37..4d9b195547c5 100644 --- a/drivers/isdn/hardware/avm/b1.c +++ b/drivers/isdn/hardware/avm/b1.c @@ -702,7 +702,7 @@ static int b1ctl_proc_show(struct seq_file *m, void *v) static int b1ctl_proc_open(struct inode *inode, struct file *file) { - return single_open(file, b1ctl_proc_show, PDE(inode)->data); + return single_open(file, b1ctl_proc_show, PDE_DATA(inode)); } const struct file_operations b1ctl_proc_fops = { diff --git a/drivers/isdn/hardware/avm/b1dma.c b/drivers/isdn/hardware/avm/b1dma.c index 0896aa86fc08..19b113faeb7b 100644 --- a/drivers/isdn/hardware/avm/b1dma.c +++ b/drivers/isdn/hardware/avm/b1dma.c @@ -944,7 +944,7 @@ static int b1dmactl_proc_show(struct seq_file *m, void *v) static int b1dmactl_proc_open(struct inode *inode, struct file *file) { - return single_open(file, b1dmactl_proc_show, PDE(inode)->data); + return single_open(file, b1dmactl_proc_show, PDE_DATA(inode)); } const struct file_operations b1dmactl_proc_fops = { diff --git a/drivers/isdn/hardware/avm/c4.c b/drivers/isdn/hardware/avm/c4.c index 1d7fc44e3eef..5d00d72fe482 100644 --- a/drivers/isdn/hardware/avm/c4.c +++ b/drivers/isdn/hardware/avm/c4.c @@ -1129,7 +1129,7 @@ static int c4_proc_show(struct seq_file *m, void *v) static int c4_proc_open(struct inode *inode, struct file *file) { - return single_open(file, c4_proc_show, PDE(inode)->data); + return single_open(file, c4_proc_show, PDE_DATA(inode)); } static const struct file_operations c4_proc_fops = { diff --git a/drivers/isdn/hardware/eicon/divasproc.c b/drivers/isdn/hardware/eicon/divasproc.c index 3a4165c61196..56ce98a4e248 100644 --- a/drivers/isdn/hardware/eicon/divasproc.c +++ b/drivers/isdn/hardware/eicon/divasproc.c @@ -145,7 +145,7 @@ void remove_divas_proc(void) static ssize_t grp_opt_proc_write(struct file *file, const char __user *buffer, size_t count, loff_t *pos) { - diva_os_xdi_adapter_t *a = PDE(file_inode(file))->data; + diva_os_xdi_adapter_t *a = PDE_DATA(file_inode(file)); PISDN_ADAPTER IoAdapter = IoAdapters[a->controller - 1]; if ((count == 1) || (count == 2)) { @@ -172,7 +172,7 @@ static ssize_t grp_opt_proc_write(struct file *file, const char __user *buffer, static ssize_t d_l1_down_proc_write(struct file *file, const char __user *buffer, size_t count, loff_t *pos) { - diva_os_xdi_adapter_t *a = PDE(file_inode(file))->data; + diva_os_xdi_adapter_t *a = PDE_DATA(file_inode(file)); PISDN_ADAPTER IoAdapter = IoAdapters[a->controller - 1]; if ((count == 1) || (count == 2)) { @@ -210,7 +210,7 @@ static int d_l1_down_proc_show(struct seq_file *m, void *v) static int d_l1_down_proc_open(struct inode *inode, struct file *file) { - return single_open(file, d_l1_down_proc_show, PDE(inode)->data); + return single_open(file, d_l1_down_proc_show, PDE_DATA(inode)); } static const struct file_operations d_l1_down_proc_fops = { @@ -236,7 +236,7 @@ static int grp_opt_proc_show(struct seq_file *m, void *v) static int grp_opt_proc_open(struct inode *inode, struct file *file) { - return single_open(file, grp_opt_proc_show, PDE(inode)->data); + return single_open(file, grp_opt_proc_show, PDE_DATA(inode)); } static const struct file_operations grp_opt_proc_fops = { @@ -251,7 +251,7 @@ static const struct file_operations grp_opt_proc_fops = { static ssize_t info_proc_write(struct file *file, const char __user *buffer, size_t count, loff_t *pos) { - diva_os_xdi_adapter_t *a = PDE(file_inode(file))->data; + diva_os_xdi_adapter_t *a = PDE_DATA(file_inode(file)); PISDN_ADAPTER IoAdapter = IoAdapters[a->controller - 1]; char c[4]; @@ -335,7 +335,7 @@ static int info_proc_show(struct seq_file *m, void *v) static int info_proc_open(struct inode *inode, struct file *file) { - return single_open(file, info_proc_show, PDE(inode)->data); + return single_open(file, info_proc_show, PDE_DATA(inode)); } static const struct file_operations info_proc_fops = { diff --git a/drivers/isdn/hysdn/hycapi.c b/drivers/isdn/hysdn/hycapi.c index 931f916c9c23..00aad10507d8 100644 --- a/drivers/isdn/hysdn/hycapi.c +++ b/drivers/isdn/hysdn/hycapi.c @@ -469,7 +469,7 @@ static int hycapi_proc_show(struct seq_file *m, void *v) static int hycapi_proc_open(struct inode *inode, struct file *file) { - return single_open(file, hycapi_proc_show, PDE(inode)->data); + return single_open(file, hycapi_proc_show, PDE_DATA(inode)); } static const struct file_operations hycapi_proc_fops = { diff --git a/drivers/isdn/hysdn/hysdn_procconf.c b/drivers/isdn/hysdn/hysdn_procconf.c index dc88bcb25029..73079213ec94 100644 --- a/drivers/isdn/hysdn/hysdn_procconf.c +++ b/drivers/isdn/hysdn/hysdn_procconf.c @@ -234,7 +234,7 @@ hysdn_conf_open(struct inode *ino, struct file *filep) /* now search the addressed card */ mutex_lock(&hysdn_conf_mutex); - card = PDE(ino)->data; + card = PDE_DATA(ino); if (card->debug_flags & (LOG_PROC_OPEN | LOG_PROC_ALL)) hysdn_addlog(card, "config open for uid=%d gid=%d mode=0x%x", filep->f_cred->fsuid, filep->f_cred->fsgid, @@ -308,7 +308,7 @@ hysdn_conf_close(struct inode *ino, struct file *filep) int retval = 0; mutex_lock(&hysdn_conf_mutex); - card = PDE(ino)->data; + card = PDE_DATA(ino); if (card->debug_flags & (LOG_PROC_OPEN | LOG_PROC_ALL)) hysdn_addlog(card, "config close for uid=%d gid=%d mode=0x%x", filep->f_cred->fsuid, filep->f_cred->fsgid, diff --git a/drivers/isdn/hysdn/hysdn_proclog.c b/drivers/isdn/hysdn/hysdn_proclog.c index 22f0e4ef1fb1..b61e8d5e84ad 100644 --- a/drivers/isdn/hysdn/hysdn_proclog.c +++ b/drivers/isdn/hysdn/hysdn_proclog.c @@ -173,7 +173,7 @@ hysdn_log_read(struct file *file, char __user *buf, size_t count, loff_t *off) { struct log_data *inf; int len; - hysdn_card *card = PDE(file_inode(file))->data; + hysdn_card *card = PDE_DATA(file_inode(file)); if (!*((struct log_data **) file->private_data)) { struct procdata *pd = card->proclog; @@ -202,7 +202,7 @@ hysdn_log_read(struct file *file, char __user *buf, size_t count, loff_t *off) static int hysdn_log_open(struct inode *ino, struct file *filep) { - hysdn_card *card = PDE(ino)->data; + hysdn_card *card = PDE_DATA(ino); mutex_lock(&hysdn_log_mutex); if ((filep->f_mode & (FMODE_READ | FMODE_WRITE)) == FMODE_WRITE) { @@ -255,7 +255,7 @@ hysdn_log_close(struct inode *ino, struct file *filep) pd = (struct procdata *) inf->proc_ctrl; /* still entries there */ else { /* no info available -> search card */ - card = PDE(file_inode(filep))->data; + card = PDE_DATA(file_inode(filep)); pd = card->proclog; /* pointer to procfs log */ } if (pd) @@ -286,7 +286,7 @@ static unsigned int hysdn_log_poll(struct file *file, poll_table *wait) { unsigned int mask = 0; - hysdn_card *card = PDE(file_inode(file))->data; + hysdn_card *card = PDE_DATA(file_inode(file)); struct procdata *pd = card->proclog; if ((file->f_mode & (FMODE_READ | FMODE_WRITE)) == FMODE_WRITE) diff --git a/drivers/macintosh/via-pmu.c b/drivers/macintosh/via-pmu.c index 22b8ce4191cc..c31fbab6aa82 100644 --- a/drivers/macintosh/via-pmu.c +++ b/drivers/macintosh/via-pmu.c @@ -869,7 +869,7 @@ static int pmu_battery_proc_show(struct seq_file *m, void *v) static int pmu_battery_proc_open(struct inode *inode, struct file *file) { - return single_open(file, pmu_battery_proc_show, PDE(inode)->data); + return single_open(file, pmu_battery_proc_show, PDE_DATA(inode)); } static const struct file_operations pmu_battery_proc_fops = { diff --git a/drivers/media/pci/zoran/zoran_procfs.c b/drivers/media/pci/zoran/zoran_procfs.c index e084b0a21b1b..07a104d2bd1d 100644 --- a/drivers/media/pci/zoran/zoran_procfs.c +++ b/drivers/media/pci/zoran/zoran_procfs.c @@ -130,14 +130,14 @@ static int zoran_show(struct seq_file *p, void *v) static int zoran_open(struct inode *inode, struct file *file) { - struct zoran *data = PDE(inode)->data; + struct zoran *data = PDE_DATA(inode); return single_open(file, zoran_show, data); } static ssize_t zoran_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos) { - struct zoran *zr = PDE(file_inode(file))->data; + struct zoran *zr = PDE_DATA(file_inode(file)); char *string, *sp; char *line, *ldelim, *varname, *svar, *tdelim; diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c index fb69baa06ca8..767ff4d839f4 100644 --- a/drivers/message/fusion/mptbase.c +++ b/drivers/message/fusion/mptbase.c @@ -6656,7 +6656,7 @@ static int mpt_summary_proc_show(struct seq_file *m, void *v) static int mpt_summary_proc_open(struct inode *inode, struct file *file) { - return single_open(file, mpt_summary_proc_show, PDE(inode)->data); + return single_open(file, mpt_summary_proc_show, PDE_DATA(inode)); } static const struct file_operations mpt_summary_proc_fops = { @@ -6805,7 +6805,7 @@ static int mpt_iocinfo_proc_show(struct seq_file *m, void *v) static int mpt_iocinfo_proc_open(struct inode *inode, struct file *file) { - return single_open(file, mpt_iocinfo_proc_show, PDE(inode)->data); + return single_open(file, mpt_iocinfo_proc_show, PDE_DATA(inode)); } static const struct file_operations mpt_iocinfo_proc_fops = { diff --git a/drivers/message/i2o/i2o_proc.c b/drivers/message/i2o/i2o_proc.c index 15c1e480c0dd..70a840f9b283 100644 --- a/drivers/message/i2o/i2o_proc.c +++ b/drivers/message/i2o/i2o_proc.c @@ -1599,98 +1599,98 @@ static int i2o_seq_show_sensors(struct seq_file *seq, void *v) static int i2o_seq_open_hrt(struct inode *inode, struct file *file) { - return single_open(file, i2o_seq_show_hrt, PDE(inode)->data); + return single_open(file, i2o_seq_show_hrt, PDE_DATA(inode)); }; static int i2o_seq_open_lct(struct inode *inode, struct file *file) { - return single_open(file, i2o_seq_show_lct, PDE(inode)->data); + return single_open(file, i2o_seq_show_lct, PDE_DATA(inode)); }; static int i2o_seq_open_status(struct inode *inode, struct file *file) { - return single_open(file, i2o_seq_show_status, PDE(inode)->data); + return single_open(file, i2o_seq_show_status, PDE_DATA(inode)); }; static int i2o_seq_open_hw(struct inode *inode, struct file *file) { - return single_open(file, i2o_seq_show_hw, PDE(inode)->data); + return single_open(file, i2o_seq_show_hw, PDE_DATA(inode)); }; static int i2o_seq_open_ddm_table(struct inode *inode, struct file *file) { - return single_open(file, i2o_seq_show_ddm_table, PDE(inode)->data); + return single_open(file, i2o_seq_show_ddm_table, PDE_DATA(inode)); }; static int i2o_seq_open_driver_store(struct inode *inode, struct file *file) { - return single_open(file, i2o_seq_show_driver_store, PDE(inode)->data); + return single_open(file, i2o_seq_show_driver_store, PDE_DATA(inode)); }; static int i2o_seq_open_drivers_stored(struct inode *inode, struct file *file) { - return single_open(file, i2o_seq_show_drivers_stored, PDE(inode)->data); + return single_open(file, i2o_seq_show_drivers_stored, PDE_DATA(inode)); }; static int i2o_seq_open_groups(struct inode *inode, struct file *file) { - return single_open(file, i2o_seq_show_groups, PDE(inode)->data); + return single_open(file, i2o_seq_show_groups, PDE_DATA(inode)); }; static int i2o_seq_open_phys_device(struct inode *inode, struct file *file) { - return single_open(file, i2o_seq_show_phys_device, PDE(inode)->data); + return single_open(file, i2o_seq_show_phys_device, PDE_DATA(inode)); }; static int i2o_seq_open_claimed(struct inode *inode, struct file *file) { - return single_open(file, i2o_seq_show_claimed, PDE(inode)->data); + return single_open(file, i2o_seq_show_claimed, PDE_DATA(inode)); }; static int i2o_seq_open_users(struct inode *inode, struct file *file) { - return single_open(file, i2o_seq_show_users, PDE(inode)->data); + return single_open(file, i2o_seq_show_users, PDE_DATA(inode)); }; static int i2o_seq_open_priv_msgs(struct inode *inode, struct file *file) { - return single_open(file, i2o_seq_show_priv_msgs, PDE(inode)->data); + return single_open(file, i2o_seq_show_priv_msgs, PDE_DATA(inode)); }; static int i2o_seq_open_authorized_users(struct inode *inode, struct file *file) { return single_open(file, i2o_seq_show_authorized_users, - PDE(inode)->data); + PDE_DATA(inode)); }; static int i2o_seq_open_dev_identity(struct inode *inode, struct file *file) { - return single_open(file, i2o_seq_show_dev_identity, PDE(inode)->data); + return single_open(file, i2o_seq_show_dev_identity, PDE_DATA(inode)); }; static int i2o_seq_open_ddm_identity(struct inode *inode, struct file *file) { - return single_open(file, i2o_seq_show_ddm_identity, PDE(inode)->data); + return single_open(file, i2o_seq_show_ddm_identity, PDE_DATA(inode)); }; static int i2o_seq_open_uinfo(struct inode *inode, struct file *file) { - return single_open(file, i2o_seq_show_uinfo, PDE(inode)->data); + return single_open(file, i2o_seq_show_uinfo, PDE_DATA(inode)); }; static int i2o_seq_open_sgl_limits(struct inode *inode, struct file *file) { - return single_open(file, i2o_seq_show_sgl_limits, PDE(inode)->data); + return single_open(file, i2o_seq_show_sgl_limits, PDE_DATA(inode)); }; static int i2o_seq_open_sensors(struct inode *inode, struct file *file) { - return single_open(file, i2o_seq_show_sensors, PDE(inode)->data); + return single_open(file, i2o_seq_show_sensors, PDE_DATA(inode)); }; static int i2o_seq_open_dev_name(struct inode *inode, struct file *file) { - return single_open(file, i2o_seq_show_dev_name, PDE(inode)->data); + return single_open(file, i2o_seq_show_dev_name, PDE_DATA(inode)); }; static const struct file_operations i2o_seq_fops_lct = { diff --git a/drivers/net/bonding/bond_procfs.c b/drivers/net/bonding/bond_procfs.c index 3cea38d37344..94d06f1307b8 100644 --- a/drivers/net/bonding/bond_procfs.c +++ b/drivers/net/bonding/bond_procfs.c @@ -218,15 +218,13 @@ static const struct seq_operations bond_info_seq_ops = { static int bond_info_open(struct inode *inode, struct file *file) { struct seq_file *seq; - struct proc_dir_entry *proc; int res; res = seq_open(file, &bond_info_seq_ops); if (!res) { /* recover the pointer buried in proc_dir_entry data */ seq = file->private_data; - proc = PDE(inode); - seq->private = proc->data; + seq->private = PDE_DATA(inode); } return res; diff --git a/drivers/net/irda/vlsi_ir.c b/drivers/net/irda/vlsi_ir.c index 2f99f8881dfc..e22cd4e7017a 100644 --- a/drivers/net/irda/vlsi_ir.c +++ b/drivers/net/irda/vlsi_ir.c @@ -383,7 +383,7 @@ static int vlsi_seq_show(struct seq_file *seq, void *v) static int vlsi_seq_open(struct inode *inode, struct file *file) { - return single_open(file, vlsi_seq_show, PDE(inode)->data); + return single_open(file, vlsi_seq_show, PDE_DATA(inode)); } static const struct file_operations vlsi_proc_fops = { diff --git a/drivers/net/wireless/airo.c b/drivers/net/wireless/airo.c index 53295418f576..66e398d4730d 100644 --- a/drivers/net/wireless/airo.c +++ b/drivers/net/wireless/airo.c @@ -4663,8 +4663,7 @@ static ssize_t proc_write( struct file *file, static int proc_status_open(struct inode *inode, struct file *file) { struct proc_data *data; - struct proc_dir_entry *dp = PDE(inode); - struct net_device *dev = dp->data; + struct net_device *dev = PDE_DATA(inode); struct airo_info *apriv = dev->ml_priv; CapabilityRid cap_rid; StatusRid status_rid; @@ -4746,8 +4745,7 @@ static int proc_stats_rid_open( struct inode *inode, u16 rid ) { struct proc_data *data; - struct proc_dir_entry *dp = PDE(inode); - struct net_device *dev = dp->data; + struct net_device *dev = PDE_DATA(inode); struct airo_info *apriv = dev->ml_priv; StatsRid stats; int i, j; @@ -4809,8 +4807,7 @@ static inline int sniffing_mode(struct airo_info *ai) static void proc_config_on_close(struct inode *inode, struct file *file) { struct proc_data *data = file->private_data; - struct proc_dir_entry *dp = PDE(inode); - struct net_device *dev = dp->data; + struct net_device *dev = PDE_DATA(inode); struct airo_info *ai = dev->ml_priv; char *line; @@ -5021,8 +5018,7 @@ static const char *get_rmode(__le16 mode) static int proc_config_open(struct inode *inode, struct file *file) { struct proc_data *data; - struct proc_dir_entry *dp = PDE(inode); - struct net_device *dev = dp->data; + struct net_device *dev = PDE_DATA(inode); struct airo_info *ai = dev->ml_priv; int i; __le16 mode; @@ -5112,8 +5108,7 @@ static int proc_config_open(struct inode *inode, struct file *file) static void proc_SSID_on_close(struct inode *inode, struct file *file) { struct proc_data *data = file->private_data; - struct proc_dir_entry *dp = PDE(inode); - struct net_device *dev = dp->data; + struct net_device *dev = PDE_DATA(inode); struct airo_info *ai = dev->ml_priv; SsidRid SSID_rid; int i; @@ -5148,8 +5143,7 @@ static void proc_SSID_on_close(struct inode *inode, struct file *file) static void proc_APList_on_close( struct inode *inode, struct file *file ) { struct proc_data *data = file->private_data; - struct proc_dir_entry *dp = PDE(inode); - struct net_device *dev = dp->data; + struct net_device *dev = PDE_DATA(inode); struct airo_info *ai = dev->ml_priv; APListRid APList_rid; int i; @@ -5283,8 +5277,7 @@ static int set_wep_tx_idx(struct airo_info *ai, u16 index, int perm, int lock) static void proc_wepkey_on_close( struct inode *inode, struct file *file ) { struct proc_data *data; - struct proc_dir_entry *dp = PDE(inode); - struct net_device *dev = dp->data; + struct net_device *dev = PDE_DATA(inode); struct airo_info *ai = dev->ml_priv; int i, rc; char key[16]; @@ -5335,8 +5328,7 @@ static void proc_wepkey_on_close( struct inode *inode, struct file *file ) { static int proc_wepkey_open( struct inode *inode, struct file *file ) { struct proc_data *data; - struct proc_dir_entry *dp = PDE(inode); - struct net_device *dev = dp->data; + struct net_device *dev = PDE_DATA(inode); struct airo_info *ai = dev->ml_priv; char *ptr; WepKeyRid wkr; @@ -5384,8 +5376,7 @@ static int proc_wepkey_open( struct inode *inode, struct file *file ) static int proc_SSID_open(struct inode *inode, struct file *file) { struct proc_data *data; - struct proc_dir_entry *dp = PDE(inode); - struct net_device *dev = dp->data; + struct net_device *dev = PDE_DATA(inode); struct airo_info *ai = dev->ml_priv; int i; char *ptr; @@ -5428,8 +5419,7 @@ static int proc_SSID_open(struct inode *inode, struct file *file) static int proc_APList_open( struct inode *inode, struct file *file ) { struct proc_data *data; - struct proc_dir_entry *dp = PDE(inode); - struct net_device *dev = dp->data; + struct net_device *dev = PDE_DATA(inode); struct airo_info *ai = dev->ml_priv; int i; char *ptr; @@ -5468,8 +5458,7 @@ static int proc_APList_open( struct inode *inode, struct file *file ) { static int proc_BSSList_open( struct inode *inode, struct file *file ) { struct proc_data *data; - struct proc_dir_entry *dp = PDE(inode); - struct net_device *dev = dp->data; + struct net_device *dev = PDE_DATA(inode); struct airo_info *ai = dev->ml_priv; char *ptr; BSSListRid BSSList_rid; diff --git a/drivers/net/wireless/ray_cs.c b/drivers/net/wireless/ray_cs.c index 3109c0db66e1..a6f660c01902 100644 --- a/drivers/net/wireless/ray_cs.c +++ b/drivers/net/wireless/ray_cs.c @@ -2778,7 +2778,7 @@ static ssize_t int_proc_write(struct file *file, const char __user *buffer, nr = nr * 10 + c; p++; } while (--len); - *(int *)PDE(file_inode(file))->data = nr; + *(int *)PDE_DATA(file_inode(file)) = nr; return count; } diff --git a/drivers/parisc/led.c b/drivers/parisc/led.c index d4d800c54d86..b48243131993 100644 --- a/drivers/parisc/led.c +++ b/drivers/parisc/led.c @@ -172,14 +172,14 @@ static int led_proc_show(struct seq_file *m, void *v) static int led_proc_open(struct inode *inode, struct file *file) { - return single_open(file, led_proc_show, PDE(inode)->data); + return single_open(file, led_proc_show, PDE_DATA(inode)); } static ssize_t led_proc_write(struct file *file, const char *buf, size_t count, loff_t *pos) { - void *data = PDE(file_inode(file))->data; + void *data = PDE_DATA(file_inode(file)); char *cur, lbuf[32]; int d; diff --git a/drivers/pci/proc.c b/drivers/pci/proc.c index 0b009470e6db..12e4fb5824c1 100644 --- a/drivers/pci/proc.c +++ b/drivers/pci/proc.c @@ -46,9 +46,7 @@ proc_bus_pci_lseek(struct file *file, loff_t off, int whence) static ssize_t proc_bus_pci_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos) { - const struct inode *ino = file_inode(file); - const struct proc_dir_entry *dp = PDE(ino); - struct pci_dev *dev = dp->data; + struct pci_dev *dev = PDE_DATA(file_inode(file)); unsigned int pos = *ppos; unsigned int cnt, size; @@ -59,7 +57,7 @@ proc_bus_pci_read(struct file *file, char __user *buf, size_t nbytes, loff_t *pp */ if (capable(CAP_SYS_ADMIN)) - size = dp->size; + size = dev->cfg_size; else if (dev->hdr_type == PCI_HEADER_TYPE_CARDBUS) size = 128; else @@ -133,10 +131,9 @@ static ssize_t proc_bus_pci_write(struct file *file, const char __user *buf, size_t nbytes, loff_t *ppos) { struct inode *ino = file_inode(file); - const struct proc_dir_entry *dp = PDE(ino); - struct pci_dev *dev = dp->data; + struct pci_dev *dev = PDE_DATA(ino); int pos = *ppos; - int size = dp->size; + int size = dev->cfg_size; int cnt; if (pos >= size) @@ -200,7 +197,7 @@ proc_bus_pci_write(struct file *file, const char __user *buf, size_t nbytes, lof pci_config_pm_runtime_put(dev); *ppos = pos; - i_size_write(ino, dp->size); + i_size_write(ino, dev->cfg_size); return nbytes; } @@ -212,8 +209,7 @@ struct pci_filp_private { static long proc_bus_pci_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { - const struct proc_dir_entry *dp = PDE(file_inode(file)); - struct pci_dev *dev = dp->data; + struct pci_dev *dev = PDE_DATA(file_inode(file)); #ifdef HAVE_PCI_MMAP struct pci_filp_private *fpriv = file->private_data; #endif /* HAVE_PCI_MMAP */ @@ -253,9 +249,7 @@ static long proc_bus_pci_ioctl(struct file *file, unsigned int cmd, #ifdef HAVE_PCI_MMAP static int proc_bus_pci_mmap(struct file *file, struct vm_area_struct *vma) { - struct inode *inode = file_inode(file); - const struct proc_dir_entry *dp = PDE(inode); - struct pci_dev *dev = dp->data; + struct pci_dev *dev = PDE_DATA(file_inode(file)); struct pci_filp_private *fpriv = file->private_data; int i, ret; diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c index 9a907567f41e..05272e676a28 100644 --- a/drivers/platform/x86/thinkpad_acpi.c +++ b/drivers/platform/x86/thinkpad_acpi.c @@ -844,14 +844,14 @@ static int dispatch_proc_show(struct seq_file *m, void *v) static int dispatch_proc_open(struct inode *inode, struct file *file) { - return single_open(file, dispatch_proc_show, PDE(inode)->data); + return single_open(file, dispatch_proc_show, PDE_DATA(inode)); } static ssize_t dispatch_proc_write(struct file *file, const char __user *userbuf, size_t count, loff_t *pos) { - struct ibm_struct *ibm = PDE(file_inode(file))->data; + struct ibm_struct *ibm = PDE_DATA(file_inode(file)); char *kernbuf; int ret; diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c index 242abac62d8b..eb3467ea6d86 100644 --- a/drivers/platform/x86/toshiba_acpi.c +++ b/drivers/platform/x86/toshiba_acpi.c @@ -553,7 +553,7 @@ static int lcd_proc_show(struct seq_file *m, void *v) static int lcd_proc_open(struct inode *inode, struct file *file) { - return single_open(file, lcd_proc_show, PDE(inode)->data); + return single_open(file, lcd_proc_show, PDE_DATA(inode)); } static int set_lcd_brightness(struct toshiba_acpi_dev *dev, int value) @@ -583,7 +583,7 @@ static int set_lcd_status(struct backlight_device *bd) static ssize_t lcd_proc_write(struct file *file, const char __user *buf, size_t count, loff_t *pos) { - struct toshiba_acpi_dev *dev = PDE(file_inode(file))->data; + struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file)); char cmd[42]; size_t len; int value; @@ -644,13 +644,13 @@ static int video_proc_show(struct seq_file *m, void *v) static int video_proc_open(struct inode *inode, struct file *file) { - return single_open(file, video_proc_show, PDE(inode)->data); + return single_open(file, video_proc_show, PDE_DATA(inode)); } static ssize_t video_proc_write(struct file *file, const char __user *buf, size_t count, loff_t *pos) { - struct toshiba_acpi_dev *dev = PDE(file_inode(file))->data; + struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file)); char *cmd, *buffer; int ret; int value; @@ -744,13 +744,13 @@ static int fan_proc_show(struct seq_file *m, void *v) static int fan_proc_open(struct inode *inode, struct file *file) { - return single_open(file, fan_proc_show, PDE(inode)->data); + return single_open(file, fan_proc_show, PDE_DATA(inode)); } static ssize_t fan_proc_write(struct file *file, const char __user *buf, size_t count, loff_t *pos) { - struct toshiba_acpi_dev *dev = PDE(file_inode(file))->data; + struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file)); char cmd[42]; size_t len; int value; @@ -816,13 +816,13 @@ static int keys_proc_show(struct seq_file *m, void *v) static int keys_proc_open(struct inode *inode, struct file *file) { - return single_open(file, keys_proc_show, PDE(inode)->data); + return single_open(file, keys_proc_show, PDE_DATA(inode)); } static ssize_t keys_proc_write(struct file *file, const char __user *buf, size_t count, loff_t *pos) { - struct toshiba_acpi_dev *dev = PDE(file_inode(file))->data; + struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file)); char cmd[42]; size_t len; int value; @@ -859,7 +859,7 @@ static int version_proc_show(struct seq_file *m, void *v) static int version_proc_open(struct inode *inode, struct file *file) { - return single_open(file, version_proc_show, PDE(inode)->data); + return single_open(file, version_proc_show, PDE_DATA(inode)); } static const struct file_operations version_proc_fops = { diff --git a/drivers/pnp/isapnp/proc.c b/drivers/pnp/isapnp/proc.c index 65f735ac6b3b..af4d40affb79 100644 --- a/drivers/pnp/isapnp/proc.c +++ b/drivers/pnp/isapnp/proc.c @@ -55,9 +55,7 @@ static loff_t isapnp_proc_bus_lseek(struct file *file, loff_t off, int whence) static ssize_t isapnp_proc_bus_read(struct file *file, char __user * buf, size_t nbytes, loff_t * ppos) { - struct inode *ino = file_inode(file); - struct proc_dir_entry *dp = PDE(ino); - struct pnp_dev *dev = dp->data; + struct pnp_dev *dev = PDE_DATA(file_inode(file)); int pos = *ppos; int cnt, size = 256; diff --git a/drivers/pnp/pnpbios/proc.c b/drivers/pnp/pnpbios/proc.c index 63ddb0173456..8dafd65d4758 100644 --- a/drivers/pnp/pnpbios/proc.c +++ b/drivers/pnp/pnpbios/proc.c @@ -238,13 +238,13 @@ static int pnpbios_proc_show(struct seq_file *m, void *v) static int pnpbios_proc_open(struct inode *inode, struct file *file) { - return single_open(file, pnpbios_proc_show, PDE(inode)->data); + return single_open(file, pnpbios_proc_show, PDE_DATA(inode)); } static ssize_t pnpbios_proc_write(struct file *file, const char __user *buf, size_t count, loff_t *pos) { - void *data = PDE(file_inode(file))->data; + void *data = PDE_DATA(file_inode(file)); struct pnp_bios_node *node; int boot = (long)data >> 8; u8 nodenum = (long)data; diff --git a/drivers/rtc/rtc-proc.c b/drivers/rtc/rtc-proc.c index e96236ac2e78..ffa69e1c9245 100644 --- a/drivers/rtc/rtc-proc.c +++ b/drivers/rtc/rtc-proc.c @@ -110,7 +110,7 @@ static int rtc_proc_show(struct seq_file *seq, void *offset) static int rtc_proc_open(struct inode *inode, struct file *file) { int ret; - struct rtc_device *rtc = PDE(inode)->data; + struct rtc_device *rtc = PDE_DATA(inode); if (!try_module_get(THIS_MODULE)) return -ENODEV; diff --git a/drivers/scsi/scsi_proc.c b/drivers/scsi/scsi_proc.c index 1eb34c34d7b9..db66357211ed 100644 --- a/drivers/scsi/scsi_proc.c +++ b/drivers/scsi/scsi_proc.c @@ -48,7 +48,7 @@ static DEFINE_MUTEX(global_host_template_mutex); static ssize_t proc_scsi_host_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos) { - struct Scsi_Host *shost = PDE(file_inode(file))->data; + struct Scsi_Host *shost = PDE_DATA(file_inode(file)); ssize_t ret = -ENOMEM; char *page; @@ -78,7 +78,7 @@ static int proc_scsi_show(struct seq_file *m, void *v) static int proc_scsi_host_open(struct inode *inode, struct file *file) { - return single_open_size(file, proc_scsi_show, PDE(inode)->data, + return single_open_size(file, proc_scsi_show, PDE_DATA(inode), 4 * PAGE_SIZE); } diff --git a/drivers/staging/ccg/rndis.c b/drivers/staging/ccg/rndis.c index d9297eebbf73..1e4cfb05f70b 100644 --- a/drivers/staging/ccg/rndis.c +++ b/drivers/staging/ccg/rndis.c @@ -1065,7 +1065,7 @@ static int rndis_proc_show(struct seq_file *m, void *v) static ssize_t rndis_proc_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos) { - rndis_params *p = PDE(file_inode(file))->data; + rndis_params *p = PDE_DATA(file_inode(file)); u32 speed = 0; int i, fl_speed = 0; @@ -1109,7 +1109,7 @@ static ssize_t rndis_proc_write(struct file *file, const char __user *buffer, static int rndis_proc_open(struct inode *inode, struct file *file) { - return single_open(file, rndis_proc_show, PDE(inode)->data); + return single_open(file, rndis_proc_show, PDE_DATA(inode)); } static const struct file_operations rndis_proc_fops = { diff --git a/drivers/staging/dgrp/dgrp_dpa_ops.c b/drivers/staging/dgrp/dgrp_dpa_ops.c index cfa8e82404f9..43209c163a43 100644 --- a/drivers/staging/dgrp/dgrp_dpa_ops.c +++ b/drivers/staging/dgrp/dgrp_dpa_ops.c @@ -113,8 +113,6 @@ static int dgrp_dpa_open(struct inode *inode, struct file *file) struct nd_struct *nd; int rtn = 0; - struct proc_dir_entry *de; - rtn = try_module_get(THIS_MODULE); if (!rtn) return -ENXIO; @@ -137,12 +135,7 @@ static int dgrp_dpa_open(struct inode *inode, struct file *file) /* * Get the node pointer, and fail if it doesn't exist. */ - de = PDE(inode); - if (!de) { - rtn = -ENXIO; - goto done; - } - nd = (struct nd_struct *)de->data; + nd = PDE_DATA(inode); if (!nd) { rtn = -ENXIO; goto done; diff --git a/drivers/staging/dgrp/dgrp_mon_ops.c b/drivers/staging/dgrp/dgrp_mon_ops.c index 52493b5c1673..6edbbf069150 100644 --- a/drivers/staging/dgrp/dgrp_mon_ops.c +++ b/drivers/staging/dgrp/dgrp_mon_ops.c @@ -67,7 +67,6 @@ const struct file_operations dgrp_mon_ops = { static int dgrp_mon_open(struct inode *inode, struct file *file) { struct nd_struct *nd; - struct proc_dir_entry *de; struct timeval tv; uint32_t time; u8 *buf; @@ -95,13 +94,7 @@ static int dgrp_mon_open(struct inode *inode, struct file *file) /* * Get the node pointer, and fail if it doesn't exist. */ - de = PDE(inode); - if (!de) { - rtn = -ENXIO; - goto done; - } - - nd = (struct nd_struct *)de->data; + nd = PDE_DATA(inode); if (!nd) { rtn = -ENXIO; goto done; diff --git a/drivers/staging/dgrp/dgrp_net_ops.c b/drivers/staging/dgrp/dgrp_net_ops.c index dc826b2cf907..5448fc78bcad 100644 --- a/drivers/staging/dgrp/dgrp_net_ops.c +++ b/drivers/staging/dgrp/dgrp_net_ops.c @@ -784,7 +784,6 @@ static int alloc_nd_buffers(struct nd_struct *nd) static int dgrp_net_open(struct inode *inode, struct file *file) { struct nd_struct *nd; - struct proc_dir_entry *de; ulong lock_flags; int rtn; @@ -808,13 +807,7 @@ static int dgrp_net_open(struct inode *inode, struct file *file) /* * Get the node pointer, and fail if it doesn't exist. */ - de = PDE(inode); - if (!de) { - rtn = -ENXIO; - goto done; - } - - nd = (struct nd_struct *) de->data; + nd = PDE_DATA(inode); if (!nd) { rtn = -ENXIO; goto done; diff --git a/drivers/staging/dgrp/dgrp_ports_ops.c b/drivers/staging/dgrp/dgrp_ports_ops.c index 48e9079c6355..4ce030815f27 100644 --- a/drivers/staging/dgrp/dgrp_ports_ops.c +++ b/drivers/staging/dgrp/dgrp_ports_ops.c @@ -149,7 +149,7 @@ static int dgrp_ports_open(struct inode *inode, struct file *file) rtn = seq_open(file, &ports_seq_ops); if (!rtn) { seq = file->private_data; - seq->private = PDE(inode)->data; + seq->private = PDE_DATA(inode); } return rtn; diff --git a/drivers/staging/silicom/bpctl_mod.c b/drivers/staging/silicom/bpctl_mod.c index f64ee07c15ac..e2da0fb3f98e 100644 --- a/drivers/staging/silicom/bpctl_mod.c +++ b/drivers/staging/silicom/bpctl_mod.c @@ -7250,7 +7250,7 @@ static int procfs_add(char *proc_name, const struct file_operations *fops, #define RO_FOPS(name) \ static int name##_open(struct inode *inode, struct file *file) \ { \ - return single_open(file, show_##name, PDE(inode)->data);\ + return single_open(file, show_##name, PDE_DATA(inode));\ } \ static const struct file_operations name##_ops = { \ .open = name##_open, \ @@ -7262,7 +7262,7 @@ static const struct file_operations name##_ops = { \ #define RW_FOPS(name) \ static int name##_open(struct inode *inode, struct file *file) \ { \ - return single_open(file, show_##name, PDE(inode)->data);\ + return single_open(file, show_##name, PDE_DATA(inode));\ } \ static const struct file_operations name##_ops = { \ .open = name##_open, \ @@ -7351,7 +7351,7 @@ static ssize_t bypass_write(struct file *file, const char __user *buffer, if (bypass_param < 0) return -1; - set_bypass_fn(PDE(file_inode(file))->data, bypass_param); + set_bypass_fn(PDE_DATA(file_inode(file)), bypass_param); return count; } static int show_bypass(struct seq_file *m, void *v) @@ -7375,7 +7375,7 @@ static ssize_t tap_write(struct file *file, const char __user *buffer, if (tap_param < 0) return -1; - set_tap_fn(PDE(file_inode(file))->data, tap_param); + set_tap_fn(PDE_DATA(file_inode(file)), tap_param); return count; } static int show_tap(struct seq_file *m, void *v) @@ -7399,7 +7399,7 @@ static ssize_t disc_write(struct file *file, const char __user *buffer, if (tap_param < 0) return -1; - set_disc_fn(PDE(file_inode(file))->data, tap_param); + set_disc_fn(PDE_DATA(file_inode(file)), tap_param); return count; } static int show_disc(struct seq_file *m, void *v) @@ -7461,7 +7461,7 @@ RO_FOPS(disc_change) static ssize_t bypass_wd_write(struct file *file, const char __user *buffer, size_t count, loff_t *pos) { - bpctl_dev_t *dev = PDE(file_inode(file))->data; + bpctl_dev_t *dev = PDE_DATA(file_inode(file)); int timeout; int ret = kstrtoint_from_user(buffer, count, 10, &timeout); if (ret) @@ -7507,7 +7507,7 @@ RO_FOPS(wd_expire_time) static ssize_t tpl_write(struct file *file, const char __user *buffer, size_t count, loff_t *pos) { - bpctl_dev_t *dev = PDE(file_inode(file))->data; + bpctl_dev_t *dev = PDE_DATA(file_inode(file)); int tpl_param = user_on_off(buffer, count); if (tpl_param < 0) return -1; @@ -7533,7 +7533,7 @@ RW_FOPS(tpl) static ssize_t wait_at_pwup_write(struct file *file, const char __user *buffer, size_t count, loff_t *pos) { - bpctl_dev_t *dev = PDE(file_inode(file))->data; + bpctl_dev_t *dev = PDE_DATA(file_inode(file)); int tpl_param = user_on_off(buffer, count); if (tpl_param < 0) return -1; @@ -7558,7 +7558,7 @@ RW_FOPS(wait_at_pwup) static ssize_t hw_reset_write(struct file *file, const char __user *buffer, size_t count, loff_t *pos) { - bpctl_dev_t *dev = PDE(file_inode(file))->data; + bpctl_dev_t *dev = PDE_DATA(file_inode(file)); int tpl_param = user_on_off(buffer, count); if (tpl_param < 0) return -1; @@ -7603,7 +7603,7 @@ static ssize_t dis_bypass_write(struct file *file, const char __user *buffer, if (bypass_param < 0) return -EINVAL; - set_dis_bypass_fn(PDE(file_inode(file))->data, bypass_param); + set_dis_bypass_fn(PDE_DATA(file_inode(file)), bypass_param); return count; } static int show_dis_bypass(struct seq_file *m, void *v) @@ -7627,7 +7627,7 @@ static ssize_t dis_tap_write(struct file *file, const char __user *buffer, if (tap_param < 0) return -EINVAL; - set_dis_tap_fn(PDE(file_inode(file))->data, tap_param); + set_dis_tap_fn(PDE_DATA(file_inode(file)), tap_param); return count; } static int show_dis_tap(struct seq_file *m, void *v) @@ -7651,7 +7651,7 @@ static ssize_t dis_disc_write(struct file *file, const char __user *buffer, if (tap_param < 0) return -EINVAL; - set_dis_disc_fn(PDE(file_inode(file))->data, tap_param); + set_dis_disc_fn(PDE_DATA(file_inode(file)), tap_param); return count; } static int show_dis_disc(struct seq_file *m, void *v) @@ -7675,7 +7675,7 @@ static ssize_t bypass_pwup_write(struct file *file, const char __user *buffer, if (bypass_param < 0) return -EINVAL; - set_bypass_pwup_fn(PDE(file_inode(file))->data, bypass_param); + set_bypass_pwup_fn(PDE_DATA(file_inode(file)), bypass_param); return count; } static int show_bypass_pwup(struct seq_file *m, void *v) @@ -7699,7 +7699,7 @@ static ssize_t bypass_pwoff_write(struct file *file, const char __user *buffer, if (bypass_param < 0) return -EINVAL; - set_bypass_pwoff_fn(PDE(file_inode(file))->data, bypass_param); + set_bypass_pwoff_fn(PDE_DATA(file_inode(file)), bypass_param); return count; } static int show_bypass_pwoff(struct seq_file *m, void *v) @@ -7723,7 +7723,7 @@ static ssize_t tap_pwup_write(struct file *file, const char __user *buffer, if (tap_param < 0) return -EINVAL; - set_tap_pwup_fn(PDE(file_inode(file))->data, tap_param); + set_tap_pwup_fn(PDE_DATA(file_inode(file)), tap_param); return count; } static int show_tap_pwup(struct seq_file *m, void *v) @@ -7747,7 +7747,7 @@ static ssize_t disc_pwup_write(struct file *file, const char __user *buffer, if (tap_param < 0) return -EINVAL; - set_disc_pwup_fn(PDE(file_inode(file))->data, tap_param); + set_disc_pwup_fn(PDE_DATA(file_inode(file)), tap_param); return count; } static int show_disc_pwup(struct seq_file *m, void *v) @@ -7771,7 +7771,7 @@ static ssize_t std_nic_write(struct file *file, const char __user *buffer, if (bypass_param < 0) return -EINVAL; - set_std_nic_fn(PDE(file_inode(file))->data, bypass_param); + set_std_nic_fn(PDE_DATA(file_inode(file)), bypass_param); return count; } static int show_std_nic(struct seq_file *m, void *v) @@ -7812,7 +7812,7 @@ static ssize_t wd_exp_mode_write(struct file *file, const char __user *buffer, else if (strcmp(kbuf, "disc") == 0) bypass_param = 2; - set_wd_exp_mode_fn(PDE(file_inode(file))->data, bypass_param); + set_wd_exp_mode_fn(PDE_DATA(file_inode(file)), bypass_param); return count; } @@ -7839,7 +7839,7 @@ static ssize_t wd_autoreset_write(struct file *file, const char __user *buffer, int ret = kstrtoint_from_user(buffer, count, 10, &timeout); if (ret) return ret; - set_wd_autoreset_fn(PDE(file_inode(file))->data, timeout); + set_wd_autoreset_fn(PDE_DATA(file_inode(file)), timeout); return count; } static int show_wd_autoreset(struct seq_file *m, void *v) diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c index a400002dfa84..19cc749f8386 100644 --- a/drivers/tty/serial/serial_core.c +++ b/drivers/tty/serial/serial_core.c @@ -1711,7 +1711,7 @@ static int uart_proc_show(struct seq_file *m, void *v) static int uart_proc_open(struct inode *inode, struct file *file) { - return single_open(file, uart_proc_show, PDE(inode)->data); + return single_open(file, uart_proc_show, PDE_DATA(inode)); } static const struct file_operations uart_proc_fops = { diff --git a/drivers/usb/gadget/at91_udc.c b/drivers/usb/gadget/at91_udc.c index 45dd2929a671..88966e0508a5 100644 --- a/drivers/usb/gadget/at91_udc.c +++ b/drivers/usb/gadget/at91_udc.c @@ -221,7 +221,7 @@ static int proc_udc_show(struct seq_file *s, void *unused) static int proc_udc_open(struct inode *inode, struct file *file) { - return single_open(file, proc_udc_show, PDE(inode)->data); + return single_open(file, proc_udc_show, PDE_DATA(inode)); } static const struct file_operations proc_ops = { diff --git a/drivers/usb/gadget/lpc32xx_udc.c b/drivers/usb/gadget/lpc32xx_udc.c index aa04089d6899..1049d3745d7a 100644 --- a/drivers/usb/gadget/lpc32xx_udc.c +++ b/drivers/usb/gadget/lpc32xx_udc.c @@ -565,7 +565,7 @@ static int proc_udc_show(struct seq_file *s, void *unused) static int proc_udc_open(struct inode *inode, struct file *file) { - return single_open(file, proc_udc_show, PDE(inode)->data); + return single_open(file, proc_udc_show, PDE_DATA(inode)); } static const struct file_operations proc_ops = { diff --git a/drivers/usb/gadget/rndis.c b/drivers/usb/gadget/rndis.c index d9297eebbf73..1e4cfb05f70b 100644 --- a/drivers/usb/gadget/rndis.c +++ b/drivers/usb/gadget/rndis.c @@ -1065,7 +1065,7 @@ static int rndis_proc_show(struct seq_file *m, void *v) static ssize_t rndis_proc_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos) { - rndis_params *p = PDE(file_inode(file))->data; + rndis_params *p = PDE_DATA(file_inode(file)); u32 speed = 0; int i, fl_speed = 0; @@ -1109,7 +1109,7 @@ static ssize_t rndis_proc_write(struct file *file, const char __user *buffer, static int rndis_proc_open(struct inode *inode, struct file *file) { - return single_open(file, rndis_proc_show, PDE(inode)->data); + return single_open(file, rndis_proc_show, PDE_DATA(inode)); } static const struct file_operations rndis_proc_fops = { diff --git a/drivers/usb/host/isp1362-hcd.c b/drivers/usb/host/isp1362-hcd.c index 9137caadb1c8..b04e8ece4d35 100644 --- a/drivers/usb/host/isp1362-hcd.c +++ b/drivers/usb/host/isp1362-hcd.c @@ -2175,7 +2175,7 @@ static int proc_isp1362_show(struct seq_file *s, void *unused) static int proc_isp1362_open(struct inode *inode, struct file *file) { - return single_open(file, proc_isp1362_show, PDE(inode)->data); + return single_open(file, proc_isp1362_show, PDE_DATA(inode)); } static const struct file_operations proc_ops = { diff --git a/drivers/usb/host/sl811-hcd.c b/drivers/usb/host/sl811-hcd.c index d62f0404baaa..313d0bbfff29 100644 --- a/drivers/usb/host/sl811-hcd.c +++ b/drivers/usb/host/sl811-hcd.c @@ -1494,7 +1494,7 @@ static int proc_sl811h_show(struct seq_file *s, void *unused) static int proc_sl811h_open(struct inode *inode, struct file *file) { - return single_open(file, proc_sl811h_show, PDE(inode)->data); + return single_open(file, proc_sl811h_show, PDE_DATA(inode)); } static const struct file_operations proc_ops = { diff --git a/drivers/video/bfin_adv7393fb.c b/drivers/video/bfin_adv7393fb.c index b65c1f9dc154..a54f7f7d763b 100644 --- a/drivers/video/bfin_adv7393fb.c +++ b/drivers/video/bfin_adv7393fb.c @@ -349,7 +349,7 @@ static ssize_t adv7393_write_proc(struct file *file, const char __user * buffer, size_t count, loff_t *ppos) { - struct adv7393fb_device *fbdev = PDE(file_inode(file))->data; + struct adv7393fb_device *fbdev = PDE_DATA(file_inode(file)); unsigned int val; int ret; diff --git a/drivers/zorro/proc.c b/drivers/zorro/proc.c index 73b33837e12c..6d3a602c004b 100644 --- a/drivers/zorro/proc.c +++ b/drivers/zorro/proc.c @@ -47,9 +47,7 @@ proc_bus_zorro_lseek(struct file *file, loff_t off, int whence) static ssize_t proc_bus_zorro_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos) { - struct inode *ino = file_inode(file); - struct proc_dir_entry *dp = PDE(ino); - struct zorro_dev *z = dp->data; + struct zorro_dev *z = PDE_DATA(file_inode(file)); struct ConfigDev cd; loff_t pos = *ppos; diff --git a/fs/afs/proc.c b/fs/afs/proc.c index 096b23f821a1..526e4bbbde59 100644 --- a/fs/afs/proc.c +++ b/fs/afs/proc.c @@ -190,7 +190,7 @@ static int afs_proc_cells_open(struct inode *inode, struct file *file) return ret; m = file->private_data; - m->private = PDE(inode)->data; + m->private = PDE_DATA(inode); return 0; } @@ -448,7 +448,7 @@ static int afs_proc_cell_volumes_open(struct inode *inode, struct file *file) struct seq_file *m; int ret; - cell = PDE(inode)->data; + cell = PDE_DATA(inode); if (!cell) return -ENOENT; @@ -554,7 +554,7 @@ static int afs_proc_cell_vlservers_open(struct inode *inode, struct file *file) struct seq_file *m; int ret; - cell = PDE(inode)->data; + cell = PDE_DATA(inode); if (!cell) return -ENOENT; @@ -659,7 +659,7 @@ static int afs_proc_cell_servers_open(struct inode *inode, struct file *file) struct seq_file *m; int ret; - cell = PDE(inode)->data; + cell = PDE_DATA(inode); if (!cell) return -ENOENT; diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c index ee6614bdb639..28e421c208a5 100644 --- a/fs/ext4/mballoc.c +++ b/fs/ext4/mballoc.c @@ -2149,7 +2149,7 @@ static const struct seq_operations ext4_mb_seq_groups_ops = { static int ext4_mb_seq_groups_open(struct inode *inode, struct file *file) { - struct super_block *sb = PDE(inode)->data; + struct super_block *sb = PDE_DATA(inode); int rc; rc = seq_open(file, &ext4_mb_seq_groups_ops); diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 5d6d53578124..c65510548355 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -1802,7 +1802,7 @@ static int options_seq_show(struct seq_file *seq, void *offset) static int options_open_fs(struct inode *inode, struct file *file) { - return single_open(file, options_seq_show, PDE(inode)->data); + return single_open(file, options_seq_show, PDE_DATA(inode)); } static const struct file_operations ext4_seq_options_fops = { diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c index ed10991ab006..154592ea5632 100644 --- a/fs/jbd2/journal.c +++ b/fs/jbd2/journal.c @@ -950,7 +950,7 @@ static const struct seq_operations jbd2_seq_info_ops = { static int jbd2_seq_info_open(struct inode *inode, struct file *file) { - journal_t *journal = PDE(inode)->data; + journal_t *journal = PDE_DATA(inode); struct jbd2_stats_proc_session *s; int rc, size; diff --git a/fs/proc/generic.c b/fs/proc/generic.c index 51fcb201e289..c0ad720c37b9 100644 --- a/fs/proc/generic.c +++ b/fs/proc/generic.c @@ -346,7 +346,7 @@ void proc_free_inum(unsigned int inum) static void *proc_follow_link(struct dentry *dentry, struct nameidata *nd) { - nd_set_link(nd, PDE(dentry->d_inode)->data); + nd_set_link(nd, PDE_DATA(dentry->d_inode)); return NULL; } diff --git a/fs/proc/proc_devtree.c b/fs/proc/proc_devtree.c index 30b590f5bd35..e0043c7e7ab7 100644 --- a/fs/proc/proc_devtree.c +++ b/fs/proc/proc_devtree.c @@ -41,7 +41,7 @@ static int property_proc_show(struct seq_file *m, void *v) static int property_proc_open(struct inode *inode, struct file *file) { - return single_open(file, property_proc_show, PDE(inode)->data); + return single_open(file, property_proc_show, PDE_DATA(inode)); } static const struct file_operations property_proc_fops = { diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h index 4f4137a0bd8a..5ae73e273e7e 100644 --- a/include/linux/proc_fs.h +++ b/include/linux/proc_fs.h @@ -306,6 +306,11 @@ static inline struct proc_dir_entry *PDE(const struct inode *inode) return PROC_I(inode)->pde; } +static inline void *PDE_DATA(const struct inode *inode) +{ + return PROC_I(inode)->pde->data; +} + static inline struct net *PDE_NET(struct proc_dir_entry *pde) { return pde->parent->data; diff --git a/ipc/util.c b/ipc/util.c index 464a8abd779f..b6db68131a0e 100644 --- a/ipc/util.c +++ b/ipc/util.c @@ -964,7 +964,7 @@ static int sysvipc_proc_open(struct inode *inode, struct file *file) seq = file->private_data; seq->private = iter; - iter->iface = PDE(inode)->data; + iter->iface = PDE_DATA(inode); iter->ns = get_ipc_ns(current->nsproxy->ipc_ns); out: return ret; diff --git a/kernel/irq/proc.c b/kernel/irq/proc.c index 397db02209ed..d59ae3751a33 100644 --- a/kernel/irq/proc.c +++ b/kernel/irq/proc.c @@ -76,7 +76,7 @@ static int irq_affinity_list_proc_show(struct seq_file *m, void *v) static ssize_t write_irq_affinity(int type, struct file *file, const char __user *buffer, size_t count, loff_t *pos) { - unsigned int irq = (int)(long)PDE(file_inode(file))->data; + unsigned int irq = (int)(long)PDE_DATA(file_inode(file)); cpumask_var_t new_value; int err; @@ -131,17 +131,17 @@ static ssize_t irq_affinity_list_proc_write(struct file *file, static int irq_affinity_proc_open(struct inode *inode, struct file *file) { - return single_open(file, irq_affinity_proc_show, PDE(inode)->data); + return single_open(file, irq_affinity_proc_show, PDE_DATA(inode)); } static int irq_affinity_list_proc_open(struct inode *inode, struct file *file) { - return single_open(file, irq_affinity_list_proc_show, PDE(inode)->data); + return single_open(file, irq_affinity_list_proc_show, PDE_DATA(inode)); } static int irq_affinity_hint_proc_open(struct inode *inode, struct file *file) { - return single_open(file, irq_affinity_hint_proc_show, PDE(inode)->data); + return single_open(file, irq_affinity_hint_proc_show, PDE_DATA(inode)); } static const struct file_operations irq_affinity_proc_fops = { @@ -212,7 +212,7 @@ static ssize_t default_affinity_write(struct file *file, static int default_affinity_open(struct inode *inode, struct file *file) { - return single_open(file, default_affinity_show, PDE(inode)->data); + return single_open(file, default_affinity_show, PDE_DATA(inode)); } static const struct file_operations default_affinity_proc_fops = { @@ -233,7 +233,7 @@ static int irq_node_proc_show(struct seq_file *m, void *v) static int irq_node_proc_open(struct inode *inode, struct file *file) { - return single_open(file, irq_node_proc_show, PDE(inode)->data); + return single_open(file, irq_node_proc_show, PDE_DATA(inode)); } static const struct file_operations irq_node_proc_fops = { @@ -256,7 +256,7 @@ static int irq_spurious_proc_show(struct seq_file *m, void *v) static int irq_spurious_proc_open(struct inode *inode, struct file *file) { - return single_open(file, irq_spurious_proc_show, PDE(inode)->data); + return single_open(file, irq_spurious_proc_show, PDE_DATA(inode)); } static const struct file_operations irq_spurious_proc_fops = { diff --git a/net/8021q/vlanproc.c b/net/8021q/vlanproc.c index dc526ec965e4..959ddbb0ca4d 100644 --- a/net/8021q/vlanproc.c +++ b/net/8021q/vlanproc.c @@ -93,7 +93,7 @@ static const struct file_operations vlan_fops = { static int vlandev_seq_open(struct inode *inode, struct file *file) { - return single_open(file, vlandev_seq_show, PDE(inode)->data); + return single_open(file, vlandev_seq_show, PDE_DATA(inode)); } static const struct file_operations vlandev_fops = { diff --git a/net/atm/proc.c b/net/atm/proc.c index 6ac35ff0d6b9..bbb6461a4b7f 100644 --- a/net/atm/proc.c +++ b/net/atm/proc.c @@ -385,7 +385,7 @@ static ssize_t proc_dev_atm_read(struct file *file, char __user *buf, page = get_zeroed_page(GFP_KERNEL); if (!page) return -ENOMEM; - dev = PDE(file_inode(file))->data; + dev = PDE_DATA(file_inode(file)); if (!dev->ops->proc_read) length = -EINVAL; else { diff --git a/net/bluetooth/af_bluetooth.c b/net/bluetooth/af_bluetooth.c index d3ee69b35a78..82040e46b24b 100644 --- a/net/bluetooth/af_bluetooth.c +++ b/net/bluetooth/af_bluetooth.c @@ -617,7 +617,7 @@ static int bt_seq_open(struct inode *inode, struct file *file) struct bt_sock_list *sk_list; struct bt_seq_state *s; - sk_list = PDE(inode)->data; + sk_list = PDE_DATA(inode); s = __seq_open_private(file, &bt_seq_ops, sizeof(struct bt_seq_state)); if (!s) diff --git a/net/bluetooth/cmtp/capi.c b/net/bluetooth/cmtp/capi.c index a4a9d4b6816c..cd75e4d64b90 100644 --- a/net/bluetooth/cmtp/capi.c +++ b/net/bluetooth/cmtp/capi.c @@ -539,7 +539,7 @@ static int cmtp_proc_show(struct seq_file *m, void *v) static int cmtp_proc_open(struct inode *inode, struct file *file) { - return single_open(file, cmtp_proc_show, PDE(inode)->data); + return single_open(file, cmtp_proc_show, PDE_DATA(inode)); } static const struct file_operations cmtp_proc_fops = { diff --git a/net/can/bcm.c b/net/can/bcm.c index 5dcb20076f39..8f113e6ff327 100644 --- a/net/can/bcm.c +++ b/net/can/bcm.c @@ -226,7 +226,7 @@ static int bcm_proc_show(struct seq_file *m, void *v) static int bcm_proc_open(struct inode *inode, struct file *file) { - return single_open(file, bcm_proc_show, PDE(inode)->data); + return single_open(file, bcm_proc_show, PDE_DATA(inode)); } static const struct file_operations bcm_proc_fops = { diff --git a/net/can/proc.c b/net/can/proc.c index 1ab8c888f102..b543470c8f8b 100644 --- a/net/can/proc.c +++ b/net/can/proc.c @@ -378,7 +378,7 @@ static int can_rcvlist_proc_show(struct seq_file *m, void *v) static int can_rcvlist_proc_open(struct inode *inode, struct file *file) { - return single_open(file, can_rcvlist_proc_show, PDE(inode)->data); + return single_open(file, can_rcvlist_proc_show, PDE_DATA(inode)); } static const struct file_operations can_rcvlist_proc_fops = { diff --git a/net/core/neighbour.c b/net/core/neighbour.c index 3863b8f639c5..537301a2c31f 100644 --- a/net/core/neighbour.c +++ b/net/core/neighbour.c @@ -2714,7 +2714,7 @@ static int neigh_stat_seq_open(struct inode *inode, struct file *file) if (!ret) { struct seq_file *sf = file->private_data; - sf->private = PDE(inode)->data; + sf->private = PDE_DATA(inode); } return ret; }; diff --git a/net/core/pktgen.c b/net/core/pktgen.c index 6048fc1da1c2..f6af4fe59f2e 100644 --- a/net/core/pktgen.c +++ b/net/core/pktgen.c @@ -508,7 +508,7 @@ static ssize_t pgctrl_write(struct file *file, const char __user *buf, static int pgctrl_open(struct inode *inode, struct file *file) { - return single_open(file, pgctrl_show, PDE(inode)->data); + return single_open(file, pgctrl_show, PDE_DATA(inode)); } static const struct file_operations pktgen_fops = { @@ -1685,7 +1685,7 @@ static ssize_t pktgen_if_write(struct file *file, static int pktgen_if_open(struct inode *inode, struct file *file) { - return single_open(file, pktgen_if_show, PDE(inode)->data); + return single_open(file, pktgen_if_show, PDE_DATA(inode)); } static const struct file_operations pktgen_if_fops = { @@ -1823,7 +1823,7 @@ static ssize_t pktgen_thread_write(struct file *file, static int pktgen_thread_open(struct inode *inode, struct file *file) { - return single_open(file, pktgen_thread_show, PDE(inode)->data); + return single_open(file, pktgen_thread_show, PDE_DATA(inode)); } static const struct file_operations pktgen_thread_fops = { diff --git a/net/ipv4/netfilter/ipt_CLUSTERIP.c b/net/ipv4/netfilter/ipt_CLUSTERIP.c index 5852b249054f..e4738fef070a 100644 --- a/net/ipv4/netfilter/ipt_CLUSTERIP.c +++ b/net/ipv4/netfilter/ipt_CLUSTERIP.c @@ -631,7 +631,7 @@ static int clusterip_proc_open(struct inode *inode, struct file *file) if (!ret) { struct seq_file *sf = file->private_data; - struct clusterip_config *c = PDE(inode)->data; + struct clusterip_config *c = PDE_DATA(inode); sf->private = c; @@ -643,7 +643,7 @@ static int clusterip_proc_open(struct inode *inode, struct file *file) static int clusterip_proc_release(struct inode *inode, struct file *file) { - struct clusterip_config *c = PDE(inode)->data; + struct clusterip_config *c = PDE_DATA(inode); int ret; ret = seq_release(inode, file); @@ -657,7 +657,7 @@ static int clusterip_proc_release(struct inode *inode, struct file *file) static ssize_t clusterip_proc_write(struct file *file, const char __user *input, size_t size, loff_t *ofs) { - struct clusterip_config *c = PDE(file_inode(file))->data; + struct clusterip_config *c = PDE_DATA(file_inode(file)); #define PROC_WRITELEN 10 char buffer[PROC_WRITELEN+1]; unsigned long nodenum; diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index d09203c63264..fc55a1c79bd9 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -2580,7 +2580,7 @@ static void tcp_seq_stop(struct seq_file *seq, void *v) int tcp_seq_open(struct inode *inode, struct file *file) { - struct tcp_seq_afinfo *afinfo = PDE(inode)->data; + struct tcp_seq_afinfo *afinfo = PDE_DATA(inode); struct tcp_iter_state *s; int err; diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index 0a073a263720..d27264318315 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -2093,7 +2093,7 @@ static void udp_seq_stop(struct seq_file *seq, void *v) int udp_seq_open(struct inode *inode, struct file *file) { - struct udp_seq_afinfo *afinfo = PDE(inode)->data; + struct udp_seq_afinfo *afinfo = PDE_DATA(inode); struct udp_iter_state *s; int err; diff --git a/net/ipv6/proc.c b/net/ipv6/proc.c index bbbe53a99b57..7ea6e180139c 100644 --- a/net/ipv6/proc.c +++ b/net/ipv6/proc.c @@ -247,7 +247,7 @@ static int snmp6_dev_seq_show(struct seq_file *seq, void *v) static int snmp6_dev_seq_open(struct inode *inode, struct file *file) { - return single_open(file, snmp6_dev_seq_show, PDE(inode)->data); + return single_open(file, snmp6_dev_seq_show, PDE_DATA(inode)); } static const struct file_operations snmp6_dev_seq_fops = { diff --git a/net/netfilter/x_tables.c b/net/netfilter/x_tables.c index 686c7715d777..67fb7bff9bbc 100644 --- a/net/netfilter/x_tables.c +++ b/net/netfilter/x_tables.c @@ -999,7 +999,7 @@ static int xt_table_open(struct inode *inode, struct file *file) sizeof(struct xt_names_priv)); if (!ret) { priv = ((struct seq_file *)file->private_data)->private; - priv->af = (unsigned long)PDE(inode)->data; + priv->af = (unsigned long)PDE_DATA(inode); } return ret; } @@ -1147,7 +1147,7 @@ static int xt_match_open(struct inode *inode, struct file *file) seq = file->private_data; seq->private = trav; - trav->nfproto = (unsigned long)PDE(inode)->data; + trav->nfproto = (unsigned long)PDE_DATA(inode); return 0; } @@ -1211,7 +1211,7 @@ static int xt_target_open(struct inode *inode, struct file *file) seq = file->private_data; seq->private = trav; - trav->nfproto = (unsigned long)PDE(inode)->data; + trav->nfproto = (unsigned long)PDE_DATA(inode); return 0; } diff --git a/net/netfilter/xt_hashlimit.c b/net/netfilter/xt_hashlimit.c index f330e8beaf69..ebfad037b11f 100644 --- a/net/netfilter/xt_hashlimit.c +++ b/net/netfilter/xt_hashlimit.c @@ -841,7 +841,7 @@ static int dl_proc_open(struct inode *inode, struct file *file) if (!ret) { struct seq_file *sf = file->private_data; - sf->private = PDE(inode)->data; + sf->private = PDE_DATA(inode); } return ret; } diff --git a/net/netfilter/xt_recent.c b/net/netfilter/xt_recent.c index d9cad315229d..3db2d387cf52 100644 --- a/net/netfilter/xt_recent.c +++ b/net/netfilter/xt_recent.c @@ -525,14 +525,13 @@ static const struct seq_operations recent_seq_ops = { static int recent_seq_open(struct inode *inode, struct file *file) { - struct proc_dir_entry *pde = PDE(inode); struct recent_iter_state *st; st = __seq_open_private(file, &recent_seq_ops, sizeof(*st)); if (st == NULL) return -ENOMEM; - st->table = pde->data; + st->table = PDE_DATA(inode); return 0; } @@ -540,8 +539,7 @@ static ssize_t recent_mt_proc_write(struct file *file, const char __user *input, size_t size, loff_t *loff) { - const struct proc_dir_entry *pde = PDE(file_inode(file)); - struct recent_table *t = pde->data; + struct recent_table *t = PDE_DATA(file_inode(file)); struct recent_entry *e; char buf[sizeof("+b335:1d35:1e55:dead:c0de:1715:5afe:c0de")]; const char *c = buf; diff --git a/net/sunrpc/cache.c b/net/sunrpc/cache.c index 25d58e766014..d9828b6799a3 100644 --- a/net/sunrpc/cache.c +++ b/net/sunrpc/cache.c @@ -1461,7 +1461,7 @@ static ssize_t write_flush(struct file *file, const char __user *buf, static ssize_t cache_read_procfs(struct file *filp, char __user *buf, size_t count, loff_t *ppos) { - struct cache_detail *cd = PDE(file_inode(filp))->data; + struct cache_detail *cd = PDE_DATA(file_inode(filp)); return cache_read(filp, buf, count, ppos, cd); } @@ -1469,14 +1469,14 @@ static ssize_t cache_read_procfs(struct file *filp, char __user *buf, static ssize_t cache_write_procfs(struct file *filp, const char __user *buf, size_t count, loff_t *ppos) { - struct cache_detail *cd = PDE(file_inode(filp))->data; + struct cache_detail *cd = PDE_DATA(file_inode(filp)); return cache_write(filp, buf, count, ppos, cd); } static unsigned int cache_poll_procfs(struct file *filp, poll_table *wait) { - struct cache_detail *cd = PDE(file_inode(filp))->data; + struct cache_detail *cd = PDE_DATA(file_inode(filp)); return cache_poll(filp, wait, cd); } @@ -1485,21 +1485,21 @@ static long cache_ioctl_procfs(struct file *filp, unsigned int cmd, unsigned long arg) { struct inode *inode = file_inode(filp); - struct cache_detail *cd = PDE(inode)->data; + struct cache_detail *cd = PDE_DATA(inode); return cache_ioctl(inode, filp, cmd, arg, cd); } static int cache_open_procfs(struct inode *inode, struct file *filp) { - struct cache_detail *cd = PDE(inode)->data; + struct cache_detail *cd = PDE_DATA(inode); return cache_open(inode, filp, cd); } static int cache_release_procfs(struct inode *inode, struct file *filp) { - struct cache_detail *cd = PDE(inode)->data; + struct cache_detail *cd = PDE_DATA(inode); return cache_release(inode, filp, cd); } @@ -1517,14 +1517,14 @@ static const struct file_operations cache_file_operations_procfs = { static int content_open_procfs(struct inode *inode, struct file *filp) { - struct cache_detail *cd = PDE(inode)->data; + struct cache_detail *cd = PDE_DATA(inode); return content_open(inode, filp, cd); } static int content_release_procfs(struct inode *inode, struct file *filp) { - struct cache_detail *cd = PDE(inode)->data; + struct cache_detail *cd = PDE_DATA(inode); return content_release(inode, filp, cd); } @@ -1538,14 +1538,14 @@ static const struct file_operations content_file_operations_procfs = { static int open_flush_procfs(struct inode *inode, struct file *filp) { - struct cache_detail *cd = PDE(inode)->data; + struct cache_detail *cd = PDE_DATA(inode); return open_flush(inode, filp, cd); } static int release_flush_procfs(struct inode *inode, struct file *filp) { - struct cache_detail *cd = PDE(inode)->data; + struct cache_detail *cd = PDE_DATA(inode); return release_flush(inode, filp, cd); } @@ -1553,7 +1553,7 @@ static int release_flush_procfs(struct inode *inode, struct file *filp) static ssize_t read_flush_procfs(struct file *filp, char __user *buf, size_t count, loff_t *ppos) { - struct cache_detail *cd = PDE(file_inode(filp))->data; + struct cache_detail *cd = PDE_DATA(file_inode(filp)); return read_flush(filp, buf, count, ppos, cd); } @@ -1562,7 +1562,7 @@ static ssize_t write_flush_procfs(struct file *filp, const char __user *buf, size_t count, loff_t *ppos) { - struct cache_detail *cd = PDE(file_inode(filp))->data; + struct cache_detail *cd = PDE_DATA(file_inode(filp)); return write_flush(filp, buf, count, ppos, cd); } diff --git a/net/sunrpc/stats.c b/net/sunrpc/stats.c index bc2068ee795b..21b75cb08c03 100644 --- a/net/sunrpc/stats.c +++ b/net/sunrpc/stats.c @@ -64,7 +64,7 @@ static int rpc_proc_show(struct seq_file *seq, void *v) { static int rpc_proc_open(struct inode *inode, struct file *file) { - return single_open(file, rpc_proc_show, PDE(inode)->data); + return single_open(file, rpc_proc_show, PDE_DATA(inode)); } static const struct file_operations rpc_proc_fops = { diff --git a/sound/core/info.c b/sound/core/info.c index a4e2de6874df..3aa88640808e 100644 --- a/sound/core/info.c +++ b/sound/core/info.c @@ -310,12 +310,10 @@ static int snd_info_entry_open(struct inode *inode, struct file *file) struct snd_info_entry *entry; struct snd_info_private_data *data; struct snd_info_buffer *buffer; - struct proc_dir_entry *p; int mode, err; mutex_lock(&info_mutex); - p = PDE(inode); - entry = p == NULL ? NULL : (struct snd_info_entry *)p->data; + entry = PDE_DATA(inode); if (entry == NULL || ! entry->p) { mutex_unlock(&info_mutex); return -ENODEV; From c35f2e49f88e72ffcb0cc6af2f93fe153fa88dd8 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 31 Mar 2013 18:29:51 -0400 Subject: [PATCH 101/204] srm_env: use proc_remove_subtree() Signed-off-by: Al Viro --- arch/alpha/kernel/srm_env.c | 64 ++++--------------------------------- 1 file changed, 7 insertions(+), 57 deletions(-) diff --git a/arch/alpha/kernel/srm_env.c b/arch/alpha/kernel/srm_env.c index ef8769b6c98b..97b4f3fee497 100644 --- a/arch/alpha/kernel/srm_env.c +++ b/arch/alpha/kernel/srm_env.c @@ -51,7 +51,6 @@ MODULE_LICENSE("GPL"); typedef struct _srm_env { char *name; unsigned long id; - struct proc_dir_entry *proc_entry; } srm_env_t; static struct proc_dir_entry *base_dir; @@ -149,52 +148,6 @@ static const struct file_operations srm_env_proc_fops = { .write = srm_env_proc_write, }; -static void -srm_env_cleanup(void) -{ - srm_env_t *entry; - unsigned long var_num; - - if (base_dir) { - /* - * Remove named entries - */ - if (named_dir) { - entry = srm_named_entries; - while (entry->name != NULL && entry->id != 0) { - if (entry->proc_entry) { - remove_proc_entry(entry->name, - named_dir); - entry->proc_entry = NULL; - } - entry++; - } - remove_proc_entry(NAMED_DIR, base_dir); - } - - /* - * Remove numbered entries - */ - if (numbered_dir) { - for (var_num = 0; var_num <= 255; var_num++) { - entry = &srm_numbered_entries[var_num]; - - if (entry->proc_entry) { - remove_proc_entry(entry->name, - numbered_dir); - entry->proc_entry = NULL; - entry->name = NULL; - } - } - remove_proc_entry(NUMBERED_DIR, base_dir); - } - - remove_proc_entry(BASE_DIR, NULL); - } - - return; -} - static int __init srm_env_init(void) { @@ -225,7 +178,7 @@ srm_env_init(void) if (!base_dir) { printk(KERN_ERR "Couldn't create base dir /proc/%s\n", BASE_DIR); - goto cleanup; + return -ENOMEM; } /* @@ -254,9 +207,8 @@ srm_env_init(void) */ entry = srm_named_entries; while (entry->name && entry->id) { - entry->proc_entry = proc_create_data(entry->name, 0644, named_dir, - &srm_env_proc_fops, entry); - if (!entry->proc_entry) + if (!proc_create_data(entry->name, 0644, named_dir, + &srm_env_proc_fops, entry)) goto cleanup; entry++; } @@ -268,9 +220,8 @@ srm_env_init(void) entry = &srm_numbered_entries[var_num]; entry->name = number[var_num]; - entry->proc_entry = proc_create_data(entry->name, 0644, numbered_dir, - &srm_env_proc_fops, entry); - if (!entry->proc_entry) + if (!proc_create_data(entry->name, 0644, numbered_dir, + &srm_env_proc_fops, entry)) goto cleanup; entry->id = var_num; @@ -282,15 +233,14 @@ srm_env_init(void) return 0; cleanup: - srm_env_cleanup(); - + remove_proc_subtree(BASE_DIR, NULL); return -ENOMEM; } static void __exit srm_env_exit(void) { - srm_env_cleanup(); + remove_proc_subtree(BASE_DIR, NULL); printk(KERN_INFO "%s: unloaded successfully\n", NAME); return; From 1c1ec6c6255cce0fa48391e36b419cf951800b50 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 31 Mar 2013 21:45:09 -0400 Subject: [PATCH 102/204] srm_env: don't bother with pointer to srm_env_t Since the only thing in it the methods actually care about is variable id, just store that directly. Signed-off-by: Al Viro --- arch/alpha/kernel/srm_env.c | 33 +++++++++------------------------ 1 file changed, 9 insertions(+), 24 deletions(-) diff --git a/arch/alpha/kernel/srm_env.c b/arch/alpha/kernel/srm_env.c index 97b4f3fee497..ffe996a54fad 100644 --- a/arch/alpha/kernel/srm_env.c +++ b/arch/alpha/kernel/srm_env.c @@ -56,7 +56,6 @@ typedef struct _srm_env { static struct proc_dir_entry *base_dir; static struct proc_dir_entry *named_dir; static struct proc_dir_entry *numbered_dir; -static char number[256][4]; static srm_env_t srm_named_entries[] = { { "auto_action", ENV_AUTO_ACTION }, @@ -76,21 +75,18 @@ static srm_env_t srm_named_entries[] = { { "tty_dev", ENV_TTY_DEV }, { NULL, 0 }, }; -static srm_env_t srm_numbered_entries[256]; - static int srm_env_proc_show(struct seq_file *m, void *v) { unsigned long ret; - srm_env_t *entry; + unsigned long id = (unsigned long)m->private; char *page; - entry = m->private; page = (char *)__get_free_page(GFP_USER); if (!page) return -ENOMEM; - ret = callback_getenv(entry->id, page, PAGE_SIZE); + ret = callback_getenv(id, page, PAGE_SIZE); if ((ret >> 61) == 0) { seq_write(m, page, ret); @@ -110,7 +106,7 @@ static ssize_t srm_env_proc_write(struct file *file, const char __user *buffer, size_t count, loff_t *pos) { int res; - srm_env_t *entry = PDE_DATA(file_inode(file)); + unsigned long id = (unsigned long)PDE_DATA(file_inode(file)); char *buf = (char *) __get_free_page(GFP_USER); unsigned long ret1, ret2; @@ -126,7 +122,7 @@ static ssize_t srm_env_proc_write(struct file *file, const char __user *buffer, goto out; buf[count] = '\0'; - ret1 = callback_setenv(entry->id, buf, count); + ret1 = callback_setenv(id, buf, count); if ((ret1 >> 61) == 0) { do ret2 = callback_save_env(); @@ -165,12 +161,6 @@ srm_env_init(void) return -ENODEV; } - /* - * Init numbers - */ - for (var_num = 0; var_num <= 255; var_num++) - sprintf(number[var_num], "%ld", var_num); - /* * Create base directory */ @@ -208,7 +198,7 @@ srm_env_init(void) entry = srm_named_entries; while (entry->name && entry->id) { if (!proc_create_data(entry->name, 0644, named_dir, - &srm_env_proc_fops, entry)) + &srm_env_proc_fops, (void *)entry->id)) goto cleanup; entry++; } @@ -217,14 +207,11 @@ srm_env_init(void) * Create all numbered nodes */ for (var_num = 0; var_num <= 255; var_num++) { - entry = &srm_numbered_entries[var_num]; - entry->name = number[var_num]; - - if (!proc_create_data(entry->name, 0644, numbered_dir, - &srm_env_proc_fops, entry)) + char name[4]; + sprintf(name, "%ld", var_num); + if (!proc_create_data(name, 0644, numbered_dir, + &srm_env_proc_fops, (void *)var_num)) goto cleanup; - - entry->id = var_num; } printk(KERN_INFO "%s: version %s loaded successfully\n", NAME, @@ -242,8 +229,6 @@ srm_env_exit(void) { remove_proc_subtree(BASE_DIR, NULL); printk(KERN_INFO "%s: unloaded successfully\n", NAME); - - return; } module_init(srm_env_init); From 6ea1511ec4ed477aeb5846275b52c89204d47089 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 31 Mar 2013 22:50:16 -0400 Subject: [PATCH 103/204] prominfo_proc fixes * check for proc_mkdir() failures * use remove_proc_subtree() Signed-off-by: Al Viro --- arch/ia64/sn/kernel/sn2/prominfo_proc.c | 50 ++++++++----------------- 1 file changed, 16 insertions(+), 34 deletions(-) diff --git a/arch/ia64/sn/kernel/sn2/prominfo_proc.c b/arch/ia64/sn/kernel/sn2/prominfo_proc.c index 20b88cb1881a..90298bda936a 100644 --- a/arch/ia64/sn/kernel/sn2/prominfo_proc.c +++ b/arch/ia64/sn/kernel/sn2/prominfo_proc.c @@ -216,58 +216,40 @@ void __exit prominfo_exit(void); module_init(prominfo_init); module_exit(prominfo_exit); -static struct proc_dir_entry **proc_entries; static struct proc_dir_entry *sgi_prominfo_entry; #define NODE_NAME_LEN 11 int __init prominfo_init(void) { - struct proc_dir_entry **entp; cnodeid_t cnodeid; - unsigned long nasid; - int size; - char name[NODE_NAME_LEN]; if (!ia64_platform_is("sn2")) return 0; - size = num_online_nodes() * sizeof(struct proc_dir_entry *); - proc_entries = kzalloc(size, GFP_KERNEL); - if (!proc_entries) + sgi_prominfo_entry = proc_mkdir("sgi_prominfo", NULL); + if (!sgi_prominfo_entry) return -ENOMEM; - sgi_prominfo_entry = proc_mkdir("sgi_prominfo", NULL); - - entp = proc_entries; for_each_online_node(cnodeid) { - sprintf(name, "node%d", cnodeid); - *entp = proc_mkdir(name, sgi_prominfo_entry); - nasid = cnodeid_to_nasid(cnodeid); - create_proc_read_entry("fit", 0, *entp, read_fit_entry, - (void *)nasid); - create_proc_read_entry("version", 0, *entp, - read_version_entry, (void *)nasid); - entp++; - } + struct proc_dir_entry *dir; + unsigned long nasid; + char name[NODE_NAME_LEN]; + sprintf(name, "node%d", cnodeid); + dir = proc_mkdir(name, sgi_prominfo_entry); + if (!dir) + continue; + nasid = cnodeid_to_nasid(cnodeid); + create_proc_read_entry("fit", 0, dir, read_fit_entry, + (void *)nasid); + create_proc_read_entry("version", 0, dir, + read_version_entry, (void *)nasid); + } return 0; } void __exit prominfo_exit(void) { - struct proc_dir_entry **entp; - unsigned int cnodeid; - char name[NODE_NAME_LEN]; - - entp = proc_entries; - for_each_online_node(cnodeid) { - remove_proc_entry("fit", *entp); - remove_proc_entry("version", *entp); - sprintf(name, "node%d", cnodeid); - remove_proc_entry(name, sgi_prominfo_entry); - entp++; - } - remove_proc_entry("sgi_prominfo", NULL); - kfree(proc_entries); + remove_proc_subtree("sgi_prominfo", NULL); } From b177a29251081576df35cfbcb0f7d7c80deceb8b Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 31 Mar 2013 23:21:50 -0400 Subject: [PATCH 104/204] lparcfg: don't bother saving pointer to proc_dir_entry Signed-off-by: Al Viro --- arch/powerpc/kernel/lparcfg.c | 11 ++--------- 1 file changed, 2 insertions(+), 9 deletions(-) diff --git a/arch/powerpc/kernel/lparcfg.c b/arch/powerpc/kernel/lparcfg.c index f5725bce9ed2..801a757c3630 100644 --- a/arch/powerpc/kernel/lparcfg.c +++ b/arch/powerpc/kernel/lparcfg.c @@ -41,8 +41,6 @@ /* #define LPARCFG_DEBUG */ -static struct proc_dir_entry *proc_ppc64_lparcfg; - /* * Track sum of all purrs across all processors. This is used to further * calculate usage values by different applications @@ -688,27 +686,22 @@ static const struct file_operations lparcfg_fops = { static int __init lparcfg_init(void) { - struct proc_dir_entry *ent; umode_t mode = S_IRUSR | S_IRGRP | S_IROTH; /* Allow writing if we have FW_FEATURE_SPLPAR */ if (firmware_has_feature(FW_FEATURE_SPLPAR)) mode |= S_IWUSR; - ent = proc_create("powerpc/lparcfg", mode, NULL, &lparcfg_fops); - if (!ent) { + if (!proc_create("powerpc/lparcfg", mode, NULL, &lparcfg_fops)) { printk(KERN_ERR "Failed to create powerpc/lparcfg\n"); return -EIO; } - - proc_ppc64_lparcfg = ent; return 0; } static void __exit lparcfg_cleanup(void) { - if (proc_ppc64_lparcfg) - remove_proc_entry("lparcfg", proc_ppc64_lparcfg->parent); + remove_proc_subtree("powerpc/lparcfg", NULL); } module_init(lparcfg_init); From fbd387aea0cb98c9d6e534c55d3d2ac83153348d Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 1 Apr 2013 20:48:34 -0400 Subject: [PATCH 105/204] create_proc_cpu_mask() doesn't need an argument... Signed-off-by: Al Viro --- arch/s390/kernel/irq.c | 6 ++---- include/linux/profile.h | 4 ++-- kernel/profile.c | 4 ++-- 3 files changed, 6 insertions(+), 8 deletions(-) diff --git a/arch/s390/kernel/irq.c b/arch/s390/kernel/irq.c index 1630f439cd2a..1580af3db31a 100644 --- a/arch/s390/kernel/irq.c +++ b/arch/s390/kernel/irq.c @@ -162,10 +162,8 @@ asmlinkage void do_softirq(void) #ifdef CONFIG_PROC_FS void init_irq_proc(void) { - struct proc_dir_entry *root_irq_dir; - - root_irq_dir = proc_mkdir("irq", NULL); - create_prof_cpu_mask(root_irq_dir); + if (proc_mkdir("irq", NULL)) + create_prof_cpu_mask(); } #endif diff --git a/include/linux/profile.h b/include/linux/profile.h index 21123902366d..aaad3861beb8 100644 --- a/include/linux/profile.h +++ b/include/linux/profile.h @@ -18,10 +18,10 @@ struct pt_regs; struct notifier_block; #if defined(CONFIG_PROFILING) && defined(CONFIG_PROC_FS) -void create_prof_cpu_mask(struct proc_dir_entry *de); +void create_prof_cpu_mask(void); int create_proc_profile(void); #else -static inline void create_prof_cpu_mask(struct proc_dir_entry *de) +static inline void create_prof_cpu_mask(void) { } diff --git a/kernel/profile.c b/kernel/profile.c index dc3384ee874e..524ce5e29d3f 100644 --- a/kernel/profile.c +++ b/kernel/profile.c @@ -462,10 +462,10 @@ static const struct file_operations prof_cpu_mask_proc_fops = { .write = prof_cpu_mask_proc_write, }; -void create_prof_cpu_mask(struct proc_dir_entry *root_irq_dir) +void create_prof_cpu_mask(void) { /* create /proc/irq/prof_cpu_mask */ - proc_create("prof_cpu_mask", 0600, root_irq_dir, &prof_cpu_mask_proc_fops); + proc_create("irq/prof_cpu_mask", 0600, NULL, &prof_cpu_mask_proc_fops); } /* From 345566bd724e13448c10f1489dbc18290af01931 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Wed, 3 Apr 2013 00:04:51 -0400 Subject: [PATCH 106/204] x25: use proc_remove_subtree() ... and don't bother with ->owner, while we are at it - procfs fops do not need it. Signed-off-by: Al Viro --- net/x25/x25_proc.c | 47 ++++++++++++++-------------------------------- 1 file changed, 14 insertions(+), 33 deletions(-) diff --git a/net/x25/x25_proc.c b/net/x25/x25_proc.c index 2ffde4631ae2..0917f047f2cf 100644 --- a/net/x25/x25_proc.c +++ b/net/x25/x25_proc.c @@ -187,7 +187,6 @@ static int x25_seq_forward_open(struct inode *inode, struct file *file) } static const struct file_operations x25_seq_socket_fops = { - .owner = THIS_MODULE, .open = x25_seq_socket_open, .read = seq_read, .llseek = seq_lseek, @@ -195,7 +194,6 @@ static const struct file_operations x25_seq_socket_fops = { }; static const struct file_operations x25_seq_route_fops = { - .owner = THIS_MODULE, .open = x25_seq_route_open, .read = seq_read, .llseek = seq_lseek, @@ -203,55 +201,38 @@ static const struct file_operations x25_seq_route_fops = { }; static const struct file_operations x25_seq_forward_fops = { - .owner = THIS_MODULE, .open = x25_seq_forward_open, .read = seq_read, .llseek = seq_lseek, .release = seq_release, }; -static struct proc_dir_entry *x25_proc_dir; - int __init x25_proc_init(void) { - struct proc_dir_entry *p; - int rc = -ENOMEM; + if (!proc_mkdir("x25", init_net.proc_net)) + return -ENOMEM; - x25_proc_dir = proc_mkdir("x25", init_net.proc_net); - if (!x25_proc_dir) + if (!proc_create("x25/route", S_IRUGO, init_net.proc_net, + &x25_seq_route_fops)) goto out; - p = proc_create("route", S_IRUGO, x25_proc_dir, &x25_seq_route_fops); - if (!p) - goto out_route; + if (!proc_create("x25/socket", S_IRUGO, init_net.proc_net, + &x25_seq_socket_fops)) + goto out; - p = proc_create("socket", S_IRUGO, x25_proc_dir, &x25_seq_socket_fops); - if (!p) - goto out_socket; - - p = proc_create("forward", S_IRUGO, x25_proc_dir, - &x25_seq_forward_fops); - if (!p) - goto out_forward; - rc = 0; + if (!proc_create("x25/forward", S_IRUGO, init_net.proc_net, + &x25_seq_forward_fops)) + goto out; + return 0; out: - return rc; -out_forward: - remove_proc_entry("socket", x25_proc_dir); -out_socket: - remove_proc_entry("route", x25_proc_dir); -out_route: - remove_proc_entry("x25", init_net.proc_net); - goto out; + remove_proc_subtree("x25", init_net.proc_net); + return -ENOMEM; } void __exit x25_proc_exit(void) { - remove_proc_entry("forward", x25_proc_dir); - remove_proc_entry("route", x25_proc_dir); - remove_proc_entry("socket", x25_proc_dir); - remove_proc_entry("x25", init_net.proc_net); + remove_proc_subtree("x25", init_net.proc_net); } #else /* CONFIG_PROC_FS */ From 14805359c790977199e0d74fe689c2c17e6a0954 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 4 Apr 2013 19:12:06 -0400 Subject: [PATCH 107/204] bluetooth: don't bother with ->owner for procfs fops Signed-off-by: Al Viro --- net/bluetooth/af_bluetooth.c | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) diff --git a/net/bluetooth/af_bluetooth.c b/net/bluetooth/af_bluetooth.c index 82040e46b24b..8ab94c6f6f3f 100644 --- a/net/bluetooth/af_bluetooth.c +++ b/net/bluetooth/af_bluetooth.c @@ -627,6 +627,13 @@ static int bt_seq_open(struct inode *inode, struct file *file) return 0; } +static const struct file_operations bt_fops = { + .open = bt_seq_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release_private +}; + int bt_procfs_init(struct module* module, struct net *net, const char *name, struct bt_sock_list* sk_list, int (* seq_show)(struct seq_file *, void *)) @@ -635,13 +642,7 @@ int bt_procfs_init(struct module* module, struct net *net, const char *name, sk_list->custom_seq_show = seq_show; - sk_list->fops.owner = module; - sk_list->fops.open = bt_seq_open; - sk_list->fops.read = seq_read; - sk_list->fops.llseek = seq_lseek; - sk_list->fops.release = seq_release_private; - - pde = proc_create(name, 0, net->proc_net, &sk_list->fops); + pde = proc_create(name, 0, net->proc_net, &bt_fops); if (!pde) return -ENOMEM; From b03166152f6da91cec8b66837b309dd3923ea536 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 4 Apr 2013 19:14:33 -0400 Subject: [PATCH 108/204] bluetooth: kill unused 'module' argument of bt_procfs_init() Signed-off-by: Al Viro --- include/net/bluetooth/bluetooth.h | 2 +- net/bluetooth/af_bluetooth.c | 4 ++-- net/bluetooth/bnep/sock.c | 2 +- net/bluetooth/cmtp/sock.c | 2 +- net/bluetooth/hci_sock.c | 2 +- net/bluetooth/hidp/sock.c | 2 +- net/bluetooth/l2cap_sock.c | 2 +- net/bluetooth/rfcomm/sock.c | 2 +- net/bluetooth/sco.c | 2 +- 9 files changed, 10 insertions(+), 10 deletions(-) diff --git a/include/net/bluetooth/bluetooth.h b/include/net/bluetooth/bluetooth.h index 9531beee09b5..946c7772b137 100644 --- a/include/net/bluetooth/bluetooth.h +++ b/include/net/bluetooth/bluetooth.h @@ -319,7 +319,7 @@ extern void hci_sock_cleanup(void); extern int bt_sysfs_init(void); extern void bt_sysfs_cleanup(void); -extern int bt_procfs_init(struct module* module, struct net *net, const char *name, +extern int bt_procfs_init(struct net *net, const char *name, struct bt_sock_list* sk_list, int (* seq_show)(struct seq_file *, void *)); extern void bt_procfs_cleanup(struct net *net, const char *name); diff --git a/net/bluetooth/af_bluetooth.c b/net/bluetooth/af_bluetooth.c index 8ab94c6f6f3f..68e6fefb3655 100644 --- a/net/bluetooth/af_bluetooth.c +++ b/net/bluetooth/af_bluetooth.c @@ -634,7 +634,7 @@ static const struct file_operations bt_fops = { .release = seq_release_private }; -int bt_procfs_init(struct module* module, struct net *net, const char *name, +int bt_procfs_init(struct net *net, const char *name, struct bt_sock_list* sk_list, int (* seq_show)(struct seq_file *, void *)) { @@ -656,7 +656,7 @@ void bt_procfs_cleanup(struct net *net, const char *name) remove_proc_entry(name, net->proc_net); } #else -int bt_procfs_init(struct module* module, struct net *net, const char *name, +int bt_procfs_init(struct net *net, const char *name, struct bt_sock_list* sk_list, int (* seq_show)(struct seq_file *, void *)) { diff --git a/net/bluetooth/bnep/sock.c b/net/bluetooth/bnep/sock.c index e7154a58465f..d4686fb7e957 100644 --- a/net/bluetooth/bnep/sock.c +++ b/net/bluetooth/bnep/sock.c @@ -234,7 +234,7 @@ int __init bnep_sock_init(void) goto error; } - err = bt_procfs_init(THIS_MODULE, &init_net, "bnep", &bnep_sk_list, NULL); + err = bt_procfs_init(&init_net, "bnep", &bnep_sk_list, NULL); if (err < 0) { BT_ERR("Failed to create BNEP proc file"); bt_sock_unregister(BTPROTO_BNEP); diff --git a/net/bluetooth/cmtp/sock.c b/net/bluetooth/cmtp/sock.c index 1c57482112b6..03f26bf85d74 100644 --- a/net/bluetooth/cmtp/sock.c +++ b/net/bluetooth/cmtp/sock.c @@ -245,7 +245,7 @@ int cmtp_init_sockets(void) goto error; } - err = bt_procfs_init(THIS_MODULE, &init_net, "cmtp", &cmtp_sk_list, NULL); + err = bt_procfs_init(&init_net, "cmtp", &cmtp_sk_list, NULL); if (err < 0) { BT_ERR("Failed to create CMTP proc file"); bt_sock_unregister(BTPROTO_HIDP); diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c index 6a93614f2c49..6ad23951c133 100644 --- a/net/bluetooth/hci_sock.c +++ b/net/bluetooth/hci_sock.c @@ -1102,7 +1102,7 @@ int __init hci_sock_init(void) goto error; } - err = bt_procfs_init(THIS_MODULE, &init_net, "hci", &hci_sk_list, NULL); + err = bt_procfs_init(&init_net, "hci", &hci_sk_list, NULL); if (err < 0) { BT_ERR("Failed to create HCI proc file"); bt_sock_unregister(BTPROTO_HCI); diff --git a/net/bluetooth/hidp/sock.c b/net/bluetooth/hidp/sock.c index 82a829d90b0f..e7e04d4b9d99 100644 --- a/net/bluetooth/hidp/sock.c +++ b/net/bluetooth/hidp/sock.c @@ -284,7 +284,7 @@ int __init hidp_init_sockets(void) goto error; } - err = bt_procfs_init(THIS_MODULE, &init_net, "hidp", &hidp_sk_list, NULL); + err = bt_procfs_init(&init_net, "hidp", &hidp_sk_list, NULL); if (err < 0) { BT_ERR("Failed to create HIDP proc file"); bt_sock_unregister(BTPROTO_HIDP); diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c index 1bcfb8422fdc..fe15960c02c3 100644 --- a/net/bluetooth/l2cap_sock.c +++ b/net/bluetooth/l2cap_sock.c @@ -1292,7 +1292,7 @@ int __init l2cap_init_sockets(void) goto error; } - err = bt_procfs_init(THIS_MODULE, &init_net, "l2cap", &l2cap_sk_list, + err = bt_procfs_init(&init_net, "l2cap", &l2cap_sk_list, NULL); if (err < 0) { BT_ERR("Failed to create L2CAP proc file"); diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c index c23bae86263b..fda3bb4019a3 100644 --- a/net/bluetooth/rfcomm/sock.c +++ b/net/bluetooth/rfcomm/sock.c @@ -1036,7 +1036,7 @@ int __init rfcomm_init_sockets(void) goto error; } - err = bt_procfs_init(THIS_MODULE, &init_net, "rfcomm", &rfcomm_sk_list, NULL); + err = bt_procfs_init(&init_net, "rfcomm", &rfcomm_sk_list, NULL); if (err < 0) { BT_ERR("Failed to create RFCOMM proc file"); bt_sock_unregister(BTPROTO_RFCOMM); diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c index fad0302bdb32..7e8dbaf8bc10 100644 --- a/net/bluetooth/sco.c +++ b/net/bluetooth/sco.c @@ -1083,7 +1083,7 @@ int __init sco_init(void) goto error; } - err = bt_procfs_init(THIS_MODULE, &init_net, "sco", &sco_sk_list, NULL); + err = bt_procfs_init(&init_net, "sco", &sco_sk_list, NULL); if (err < 0) { BT_ERR("Failed to create SCO proc file"); bt_sock_unregister(BTPROTO_SCO); From 4d006263d3d61413e63784a454b6e3310bd8e6ee Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 4 Apr 2013 19:16:06 -0400 Subject: [PATCH 109/204] bluetooth: fix race in bt_procfs_init() use proc_create_data() rather than set ->data after the file has been created Signed-off-by: Al Viro --- net/bluetooth/af_bluetooth.c | 8 +------- 1 file changed, 1 insertion(+), 7 deletions(-) diff --git a/net/bluetooth/af_bluetooth.c b/net/bluetooth/af_bluetooth.c index 68e6fefb3655..438a8c56938e 100644 --- a/net/bluetooth/af_bluetooth.c +++ b/net/bluetooth/af_bluetooth.c @@ -638,16 +638,10 @@ int bt_procfs_init(struct net *net, const char *name, struct bt_sock_list* sk_list, int (* seq_show)(struct seq_file *, void *)) { - struct proc_dir_entry * pde; - sk_list->custom_seq_show = seq_show; - pde = proc_create(name, 0, net->proc_net, &bt_fops); - if (!pde) + if (!proc_create_data(name, 0, net->proc_net, &bt_fops, sk_list)) return -ENOMEM; - - pde->data = sk_list; - return 0; } From c10c062cadf527c3e072f01280d266fbbc592f9d Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 4 Apr 2013 19:18:04 -0400 Subject: [PATCH 110/204] bluetooth: kill unused fops field in struct bt_sock_list Signed-off-by: Al Viro --- include/net/bluetooth/bluetooth.h | 1 - 1 file changed, 1 deletion(-) diff --git a/include/net/bluetooth/bluetooth.h b/include/net/bluetooth/bluetooth.h index 946c7772b137..ea81f0ef6492 100644 --- a/include/net/bluetooth/bluetooth.h +++ b/include/net/bluetooth/bluetooth.h @@ -226,7 +226,6 @@ struct bt_sock_list { struct hlist_head head; rwlock_t lock; #ifdef CONFIG_PROC_FS - struct file_operations fops; int (* custom_seq_show)(struct seq_file *, void *); #endif }; From 75ef9de1267ba171ecefafca35758e2be0db10dc Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 4 Apr 2013 19:09:41 -0400 Subject: [PATCH 111/204] constify a bunch of struct file_operations instances Signed-off-by: Al Viro --- arch/powerpc/kvm/book3s_64_mmu_hv.c | 2 +- arch/powerpc/kvm/book3s_64_vio.c | 2 +- arch/powerpc/kvm/book3s_hv.c | 2 +- drivers/media/rc/ir-lirc-codec.c | 2 +- drivers/media/rc/lirc_dev.c | 2 +- drivers/s390/cio/qdio_debug.c | 2 +- drivers/scsi/qla2xxx/qla_os.c | 2 +- drivers/staging/csr/drv.c | 4 ++-- drivers/staging/dgrp/dgrp_specproc.c | 6 +++--- drivers/staging/ft1000/ft1000-usb/ft1000_debug.c | 2 +- drivers/staging/rtl8192u/ieee80211/proc.c | 2 +- drivers/staging/silicom/bpctl_mod.c | 2 +- fs/nfsd/nfsctl.c | 4 ++-- 13 files changed, 17 insertions(+), 17 deletions(-) diff --git a/arch/powerpc/kvm/book3s_64_mmu_hv.c b/arch/powerpc/kvm/book3s_64_mmu_hv.c index 8cc18abd6dde..da98e26f6e45 100644 --- a/arch/powerpc/kvm/book3s_64_mmu_hv.c +++ b/arch/powerpc/kvm/book3s_64_mmu_hv.c @@ -1467,7 +1467,7 @@ static int kvm_htab_release(struct inode *inode, struct file *filp) return 0; } -static struct file_operations kvm_htab_fops = { +static const struct file_operations kvm_htab_fops = { .read = kvm_htab_read, .write = kvm_htab_write, .llseek = default_llseek, diff --git a/arch/powerpc/kvm/book3s_64_vio.c b/arch/powerpc/kvm/book3s_64_vio.c index 72ffc899c082..b2d3f3b2de72 100644 --- a/arch/powerpc/kvm/book3s_64_vio.c +++ b/arch/powerpc/kvm/book3s_64_vio.c @@ -92,7 +92,7 @@ static int kvm_spapr_tce_release(struct inode *inode, struct file *filp) return 0; } -static struct file_operations kvm_spapr_tce_fops = { +static const struct file_operations kvm_spapr_tce_fops = { .mmap = kvm_spapr_tce_mmap, .release = kvm_spapr_tce_release, }; diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c index 80dcc53a1aba..b62bd1b97c68 100644 --- a/arch/powerpc/kvm/book3s_hv.c +++ b/arch/powerpc/kvm/book3s_hv.c @@ -1483,7 +1483,7 @@ static int kvm_rma_release(struct inode *inode, struct file *filp) return 0; } -static struct file_operations kvm_rma_fops = { +static const struct file_operations kvm_rma_fops = { .mmap = kvm_rma_mmap, .release = kvm_rma_release, }; diff --git a/drivers/media/rc/ir-lirc-codec.c b/drivers/media/rc/ir-lirc-codec.c index 9945e5e7f61a..8ee080ef2f2c 100644 --- a/drivers/media/rc/ir-lirc-codec.c +++ b/drivers/media/rc/ir-lirc-codec.c @@ -307,7 +307,7 @@ static void ir_lirc_close(void *data) return; } -static struct file_operations lirc_fops = { +static const struct file_operations lirc_fops = { .owner = THIS_MODULE, .write = ir_lirc_transmit_ir, .unlocked_ioctl = ir_lirc_ioctl, diff --git a/drivers/media/rc/lirc_dev.c b/drivers/media/rc/lirc_dev.c index 5247d94fea29..8dc057b273f2 100644 --- a/drivers/media/rc/lirc_dev.c +++ b/drivers/media/rc/lirc_dev.c @@ -152,7 +152,7 @@ static int lirc_thread(void *irctl) } -static struct file_operations lirc_dev_fops = { +static const struct file_operations lirc_dev_fops = { .owner = THIS_MODULE, .read = lirc_dev_fop_read, .write = lirc_dev_fop_write, diff --git a/drivers/s390/cio/qdio_debug.c b/drivers/s390/cio/qdio_debug.c index ccaae9d63d27..4221b02085ad 100644 --- a/drivers/s390/cio/qdio_debug.c +++ b/drivers/s390/cio/qdio_debug.c @@ -224,7 +224,7 @@ static int qperf_seq_open(struct inode *inode, struct file *filp) file_inode(filp)->i_private); } -static struct file_operations debugfs_perf_fops = { +static const struct file_operations debugfs_perf_fops = { .owner = THIS_MODULE, .open = qperf_seq_open, .read = seq_read, diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index 2c6dd3dfe0f4..ccb5e6404d09 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -5351,7 +5351,7 @@ static struct pci_driver qla2xxx_pci_driver = { .err_handler = &qla2xxx_err_handler, }; -static struct file_operations apidev_fops = { +static const struct file_operations apidev_fops = { .owner = THIS_MODULE, .llseek = noop_llseek, }; diff --git a/drivers/staging/csr/drv.c b/drivers/staging/csr/drv.c index 3bd52fdeac3b..33742ba13779 100644 --- a/drivers/staging/csr/drv.c +++ b/drivers/staging/csr/drv.c @@ -1941,7 +1941,7 @@ uf_sme_queue_message(unifi_priv_t *priv, u8 *buffer, int length) * **************************************************************************** */ -static struct file_operations unifi_fops = { +static const struct file_operations unifi_fops = { .owner = THIS_MODULE, .open = unifi_open, .release = unifi_release, @@ -2041,7 +2041,7 @@ void uf_destroy_device_nodes(unifi_priv_t *priv) * ---------------------------------------------------------------- */ static int -uf_create_debug_device(struct file_operations *fops) +uf_create_debug_device(const struct file_operations *fops) { int ret; diff --git a/drivers/staging/dgrp/dgrp_specproc.c b/drivers/staging/dgrp/dgrp_specproc.c index 99c993b13378..b990b2686ba9 100644 --- a/drivers/staging/dgrp/dgrp_specproc.c +++ b/drivers/staging/dgrp/dgrp_specproc.c @@ -63,7 +63,7 @@ static int dgrp_nodeinfo_proc_open(struct inode *inode, struct file *file); static int dgrp_info_proc_open(struct inode *inode, struct file *file); static int dgrp_config_proc_open(struct inode *inode, struct file *file); -static struct file_operations config_proc_file_ops = { +static const struct file_operations config_proc_file_ops = { .owner = THIS_MODULE, .open = dgrp_config_proc_open, .read = seq_read, @@ -72,7 +72,7 @@ static struct file_operations config_proc_file_ops = { .write = dgrp_config_proc_write, }; -static struct file_operations info_proc_file_ops = { +static const struct file_operations info_proc_file_ops = { .owner = THIS_MODULE, .open = dgrp_info_proc_open, .read = seq_read, @@ -80,7 +80,7 @@ static struct file_operations info_proc_file_ops = { .release = single_release, }; -static struct file_operations nodeinfo_proc_file_ops = { +static const struct file_operations nodeinfo_proc_file_ops = { .owner = THIS_MODULE, .open = dgrp_nodeinfo_proc_open, .read = seq_read, diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_debug.c b/drivers/staging/ft1000/ft1000-usb/ft1000_debug.c index 297389e8c608..3251d2e073b5 100644 --- a/drivers/staging/ft1000/ft1000-usb/ft1000_debug.c +++ b/drivers/staging/ft1000/ft1000-usb/ft1000_debug.c @@ -55,7 +55,7 @@ int numofmsgbuf = 0; // // Table of entry-point routines for char device // -static struct file_operations ft1000fops = +static const struct file_operations ft1000fops = { .unlocked_ioctl = ft1000_ioctl, .poll = ft1000_poll_dev, diff --git a/drivers/staging/rtl8192u/ieee80211/proc.c b/drivers/staging/rtl8192u/ieee80211/proc.c index 54026a412ca4..c426dfdd9fdd 100644 --- a/drivers/staging/rtl8192u/ieee80211/proc.c +++ b/drivers/staging/rtl8192u/ieee80211/proc.c @@ -99,7 +99,7 @@ static int crypto_info_open(struct inode *inode, struct file *file) return seq_open(file, &crypto_seq_ops); } -static struct file_operations proc_crypto_ops = { +static const struct file_operations proc_crypto_ops = { .open = crypto_info_open, .read = seq_read, .llseek = seq_lseek, diff --git a/drivers/staging/silicom/bpctl_mod.c b/drivers/staging/silicom/bpctl_mod.c index e2da0fb3f98e..2cfa800e248c 100644 --- a/drivers/staging/silicom/bpctl_mod.c +++ b/drivers/staging/silicom/bpctl_mod.c @@ -5803,7 +5803,7 @@ static long device_ioctl(struct file *file, /* see include/linux/fs.h */ return ret; } -struct file_operations Fops = { +static const struct file_operations Fops = { .owner = THIS_MODULE, .unlocked_ioctl = device_ioctl, .open = device_open, diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c index f33455b4d957..5bee0313dffd 100644 --- a/fs/nfsd/nfsctl.c +++ b/fs/nfsd/nfsctl.c @@ -177,7 +177,7 @@ static int export_features_open(struct inode *inode, struct file *file) return single_open(file, export_features_show, NULL); } -static struct file_operations export_features_operations = { +static const struct file_operations export_features_operations = { .open = export_features_open, .read = seq_read, .llseek = seq_lseek, @@ -196,7 +196,7 @@ static int supported_enctypes_open(struct inode *inode, struct file *file) return single_open(file, supported_enctypes_show, NULL); } -static struct file_operations supported_enctypes_ops = { +static const struct file_operations supported_enctypes_ops = { .open = supported_enctypes_open, .read = seq_read, .llseek = seq_lseek, From 4554eb90659eb3132f41968b77511d7263b631f0 Mon Sep 17 00:00:00 2001 From: David Howells Date: Thu, 4 Apr 2013 16:58:25 +0100 Subject: [PATCH 112/204] UM: Adjust printk in create_proc_mconsole() Adjust printk in create_proc_mconsole() to reflect it is now using proc_create() not create_proc_mconsole(). Signed-off-by: David Howells --- arch/um/drivers/mconsole_kern.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/arch/um/drivers/mconsole_kern.c b/arch/um/drivers/mconsole_kern.c index 4bd82ac0210f..d7d21851e60c 100644 --- a/arch/um/drivers/mconsole_kern.c +++ b/arch/um/drivers/mconsole_kern.c @@ -782,8 +782,7 @@ static int create_proc_mconsole(void) ent = proc_create("mconsole", 0200, NULL, &mconsole_proc_fops); if (ent == NULL) { - printk(KERN_INFO "create_proc_mconsole : create_proc_entry " - "failed\n"); + printk(KERN_INFO "create_proc_mconsole : proc_create failed\n"); return 0; } return 0; From 8a25378e408022c441a1d27082fea9264323b7e7 Mon Sep 17 00:00:00 2001 From: David Howells Date: Thu, 4 Apr 2013 16:44:51 +0100 Subject: [PATCH 113/204] nubus: Don't use create_proc_entry() Don't use create_proc_entry() in nubus_proc_subdir(). The files created aren't given any way to use them, so for the moment use create_proc_read_entry() with a NULL accessor and generate a compile-time warning. Signed-off-by: David Howells --- drivers/nubus/proc.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/nubus/proc.c b/drivers/nubus/proc.c index 208dd12825bc..bb1446bb2802 100644 --- a/drivers/nubus/proc.c +++ b/drivers/nubus/proc.c @@ -73,8 +73,9 @@ static void nubus_proc_subdir(struct nubus_dev* dev, struct proc_dir_entry* e; sprintf(name, "%x", ent.type); - e = create_proc_entry(name, S_IFREG | S_IRUGO | - S_IWUSR, parent); +#warning Need to set some I/O handlers here + e = create_proc_read_entry(name, S_IFREG | S_IRUGO | S_IWUSR, + parent, NULL, NULL); if (!e) return; } } From 3cba53765bdaeef0a5ee8680b0dd4b028f3cae79 Mon Sep 17 00:00:00 2001 From: David Howells Date: Thu, 4 Apr 2013 16:49:26 +0100 Subject: [PATCH 114/204] wlags49_h2: Don't use create_proc_entry() create_proc_entry() shouldn't be used. Rather proc_create_data() should be used. The proc_write() function is only used by #if'd out code, so delete it for now. Signed-off-by: David Howells --- drivers/staging/wlags49_h2/wl_main.c | 11 ----------- 1 file changed, 11 deletions(-) diff --git a/drivers/staging/wlags49_h2/wl_main.c b/drivers/staging/wlags49_h2/wl_main.c index f5f120a62460..174c41af4847 100644 --- a/drivers/staging/wlags49_h2/wl_main.c +++ b/drivers/staging/wlags49_h2/wl_main.c @@ -147,7 +147,6 @@ void wl_isr_handler( unsigned long p ); //int scull_read_procmem(char *buf, char **start, off_t offset, int len, int unused); int scull_read_procmem(char *buf, char **start, off_t offset, int len, int *eof, void *data ); static int write_int(struct file *file, const char *buffer, unsigned long count, void *data); -static void proc_write(const char *name, write_proc_t *w, void *data); #endif /* SCULL_USE_PROC */ @@ -910,7 +909,6 @@ int wl_insert( struct net_device *dev ) #if 0 //SCULL_USE_PROC /* don't waste space if unused */ create_proc_read_entry( "wlags", 0, NULL, scull_read_procmem, dev ); proc_mkdir("driver/wlags49", 0); - proc_write("driver/wlags49/wlags49_type", write_int, &lp->wlags49_type); #endif /* SCULL_USE_PROC */ DBG_LEAVE( DbgInfo ); @@ -3773,15 +3771,6 @@ int scull_read_procmem(char *buf, char **start, off_t offset, int len, int *eof, return len; } // scull_read_procmem -static void proc_write(const char *name, write_proc_t *w, void *data) -{ - struct proc_dir_entry * entry = create_proc_entry(name, S_IFREG | S_IWUSR, NULL); - if (entry) { - entry->write_proc = w; - entry->data = data; - } -} // proc_write - static int write_int(struct file *file, const char *buffer, unsigned long count, void *data) { static char proc_number[11]; From 80e928f7ebb958f4d79d4099d1c5c0a015a23b93 Mon Sep 17 00:00:00 2001 From: David Howells Date: Thu, 4 Apr 2013 17:02:03 +0100 Subject: [PATCH 115/204] proc: Kill create_proc_entry() Kill create_proc_entry() in favour of create_proc_read_entry(), proc_create() and proc_create_data(). Signed-off-by: David Howells --- fs/proc/generic.c | 9 ++++++--- include/linux/proc_fs.h | 17 ++--------------- 2 files changed, 8 insertions(+), 18 deletions(-) diff --git a/fs/proc/generic.c b/fs/proc/generic.c index c0ad720c37b9..5453f1c0b70c 100644 --- a/fs/proc/generic.c +++ b/fs/proc/generic.c @@ -650,8 +650,9 @@ struct proc_dir_entry *proc_mkdir(const char *name, } EXPORT_SYMBOL(proc_mkdir); -struct proc_dir_entry *create_proc_entry(const char *name, umode_t mode, - struct proc_dir_entry *parent) +struct proc_dir_entry *create_proc_read_entry( + const char *name, umode_t mode, struct proc_dir_entry *parent, + read_proc_t *read_proc, void *data) { struct proc_dir_entry *ent; @@ -668,6 +669,8 @@ struct proc_dir_entry *create_proc_entry(const char *name, umode_t mode, ent = __proc_create(&parent, name, mode, 1); if (ent) { + ent->read_proc = read_proc; + ent->data = data; if (proc_register(parent, ent) < 0) { kfree(ent); ent = NULL; @@ -675,7 +678,7 @@ struct proc_dir_entry *create_proc_entry(const char *name, umode_t mode, } return ent; } -EXPORT_SYMBOL(create_proc_entry); +EXPORT_SYMBOL(create_proc_read_entry); struct proc_dir_entry *proc_create_data(const char *name, umode_t mode, struct proc_dir_entry *parent, diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h index 5ae73e273e7e..bcc0e10ef1df 100644 --- a/include/linux/proc_fs.h +++ b/include/linux/proc_fs.h @@ -109,8 +109,6 @@ extern void proc_root_init(void); void proc_flush_task(struct task_struct *task); -extern struct proc_dir_entry *create_proc_entry(const char *name, umode_t mode, - struct proc_dir_entry *parent); struct proc_dir_entry *proc_create_data(const char *name, umode_t mode, struct proc_dir_entry *parent, const struct file_operations *proc_fops, @@ -164,17 +162,9 @@ static inline struct proc_dir_entry *proc_create(const char *name, umode_t mode, return proc_create_data(name, mode, parent, proc_fops, NULL); } -static inline struct proc_dir_entry *create_proc_read_entry(const char *name, +extern struct proc_dir_entry *create_proc_read_entry(const char *name, umode_t mode, struct proc_dir_entry *base, - read_proc_t *read_proc, void * data) -{ - struct proc_dir_entry *res=create_proc_entry(name,mode,base); - if (res) { - res->read_proc=read_proc; - res->data=data; - } - return res; -} + read_proc_t *read_proc, void *data); extern struct proc_dir_entry *proc_net_mkdir(struct net *net, const char *name, struct proc_dir_entry *parent); @@ -190,9 +180,6 @@ static inline void proc_flush_task(struct task_struct *task) { } -static inline struct proc_dir_entry *create_proc_entry(const char *name, - umode_t mode, struct proc_dir_entry *parent) { return NULL; } - #define proc_create(name, mode, parent, fops) ({ (void)(mode), NULL; }) static inline struct proc_dir_entry *proc_create_data(const char *name, From 7294b0bb694c4376cad819bb97f2796626f50551 Mon Sep 17 00:00:00 2001 From: David Howells Date: Thu, 4 Apr 2013 20:36:00 +0100 Subject: [PATCH 116/204] silicom-bypass: Remove device_open/close() Remove device_open/close() functions as they don't really do anything and remove Device_Open as it isn't counted atomically and the value isn't used. Signed-off-by: David Howells --- drivers/staging/silicom/bpctl_mod.c | 24 ------------------------ 1 file changed, 24 deletions(-) diff --git a/drivers/staging/silicom/bpctl_mod.c b/drivers/staging/silicom/bpctl_mod.c index 2cfa800e248c..3117559c041b 100644 --- a/drivers/staging/silicom/bpctl_mod.c +++ b/drivers/staging/silicom/bpctl_mod.c @@ -35,7 +35,6 @@ #define BP_MOD_DESCR "Silicom Bypass-SD Control driver" #define BP_SYNC_FLAG 1 -static int Device_Open = 0; static int major_num = 0; MODULE_AUTHOR("Anna Lukin, annal@silicom.co.il"); @@ -289,27 +288,6 @@ static struct notifier_block bp_notifier_block = { .notifier_call = bp_device_event, }; -static int device_open(struct inode *inode, struct file *file) -{ -#ifdef DEBUG - printk("device_open(%p)\n", file); -#endif - Device_Open++; -/* -* Initialize the message -*/ - return SUCCESS; -} - -static int device_release(struct inode *inode, struct file *file) -{ -#ifdef DEBUG - printk("device_release(%p,%p)\n", inode, file); -#endif - Device_Open--; - return SUCCESS; -} - int is_bypass_fn(bpctl_dev_t *pbpctl_dev); int wdt_time_left(bpctl_dev_t *pbpctl_dev); @@ -5806,8 +5784,6 @@ static long device_ioctl(struct file *file, /* see include/linux/fs.h */ static const struct file_operations Fops = { .owner = THIS_MODULE, .unlocked_ioctl = device_ioctl, - .open = device_open, - .release = device_release, /* a.k.a. close */ }; #ifndef PCI_DEVICE From 996142e61d11fc1c1bea2834a36116c9a0fae029 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 5 Apr 2013 20:39:36 -0400 Subject: [PATCH 117/204] pxa3xx-gcu: quite playing silly buggers with ->f_op misc device gets ->private_data pointing to struct miscdevice on open(), so we can use that to get to per-device structure instead of relying on file_operations being copied into it. Signed-off-by: Al Viro --- drivers/video/pxa3xx-gcu.c | 21 ++++++++++++--------- 1 file changed, 12 insertions(+), 9 deletions(-) diff --git a/drivers/video/pxa3xx-gcu.c b/drivers/video/pxa3xx-gcu.c index 6c984eacc7e3..4c318a34dfeb 100644 --- a/drivers/video/pxa3xx-gcu.c +++ b/drivers/video/pxa3xx-gcu.c @@ -369,15 +369,20 @@ pxa3xx_gcu_wait_free(struct pxa3xx_gcu_priv *priv) /* Misc device layer */ +static inline struct pxa3xx_gcu_priv *file_dev(struct file *file) +{ + struct miscdevice *dev = file->private_data; + return container_of(dev, struct pxa3xx_gcu_priv, misc_dev); +} + static ssize_t -pxa3xx_gcu_misc_write(struct file *filp, const char *buff, +pxa3xx_gcu_misc_write(struct file *file, const char *buff, size_t count, loff_t *offp) { int ret; unsigned long flags; struct pxa3xx_gcu_batch *buffer; - struct pxa3xx_gcu_priv *priv = - container_of(filp->f_op, struct pxa3xx_gcu_priv, misc_fops); + struct pxa3xx_gcu_priv *priv = file_dev(file); int words = count / 4; @@ -450,11 +455,10 @@ pxa3xx_gcu_misc_write(struct file *filp, const char *buff, static long -pxa3xx_gcu_misc_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) +pxa3xx_gcu_misc_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { unsigned long flags; - struct pxa3xx_gcu_priv *priv = - container_of(filp->f_op, struct pxa3xx_gcu_priv, misc_fops); + struct pxa3xx_gcu_priv *priv = file_dev(file); switch (cmd) { case PXA3XX_GCU_IOCTL_RESET: @@ -471,11 +475,10 @@ pxa3xx_gcu_misc_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) } static int -pxa3xx_gcu_misc_mmap(struct file *filp, struct vm_area_struct *vma) +pxa3xx_gcu_misc_mmap(struct file *file, struct vm_area_struct *vma) { unsigned int size = vma->vm_end - vma->vm_start; - struct pxa3xx_gcu_priv *priv = - container_of(filp->f_op, struct pxa3xx_gcu_priv, misc_fops); + struct pxa3xx_gcu_priv *priv = file_dev(file); switch (vma->vm_pgoff) { case 0: From 264bd6602edd9f309c67685770bc1c8103699428 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 5 Apr 2013 20:44:08 -0400 Subject: [PATCH 118/204] pxa3xx-gcu: stop embedding file_operations into device-private object no need to do that anymore... Signed-off-by: Al Viro --- drivers/video/pxa3xx-gcu.c | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) diff --git a/drivers/video/pxa3xx-gcu.c b/drivers/video/pxa3xx-gcu.c index 4c318a34dfeb..97563c55af63 100644 --- a/drivers/video/pxa3xx-gcu.c +++ b/drivers/video/pxa3xx-gcu.c @@ -101,7 +101,6 @@ struct pxa3xx_gcu_priv { dma_addr_t shared_phys; struct resource *resource_mem; struct miscdevice misc_dev; - struct file_operations misc_fops; wait_queue_head_t wait_idle; wait_queue_head_t wait_free; spinlock_t spinlock; @@ -577,6 +576,13 @@ free_buffers(struct platform_device *dev, priv->free = NULL; } +static const struct file_operations misc_fops = { + .owner = THIS_MODULE, + .write = pxa3xx_gcu_misc_write, + .unlocked_ioctl = pxa3xx_gcu_misc_ioctl, + .mmap = pxa3xx_gcu_misc_mmap +}; + static int pxa3xx_gcu_probe(struct platform_device *dev) { int i, ret, irq; @@ -604,14 +610,9 @@ static int pxa3xx_gcu_probe(struct platform_device *dev) * container_of(). This isn't really necessary as we have a fixed minor * number anyway, but this is to avoid statics. */ - priv->misc_fops.owner = THIS_MODULE; - priv->misc_fops.write = pxa3xx_gcu_misc_write; - priv->misc_fops.unlocked_ioctl = pxa3xx_gcu_misc_ioctl; - priv->misc_fops.mmap = pxa3xx_gcu_misc_mmap; - priv->misc_dev.minor = MISCDEV_MINOR, priv->misc_dev.name = DRV_NAME, - priv->misc_dev.fops = &priv->misc_fops, + priv->misc_dev.fops = &misc_fops, /* register misc device */ ret = misc_register(&priv->misc_dev); From 434b5a2e2dfd2a15bde68ed7ed2d4150eceb04e0 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sat, 6 Apr 2013 13:53:56 -0400 Subject: [PATCH 119/204] sound_firmware: don't bother with filp_close() it's opened read-only and never installed into any descriptor tables; fput() will do just as well. Signed-off-by: Al Viro --- sound/sound_firmware.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/sound/sound_firmware.c b/sound/sound_firmware.c index e14903468051..b155137ee312 100644 --- a/sound/sound_firmware.c +++ b/sound/sound_firmware.c @@ -1,6 +1,7 @@ #include #include #include +#include #include #include #include @@ -23,14 +24,14 @@ static int do_mod_firmware_load(const char *fn, char **fp) if (l <= 0 || l > 131072) { printk(KERN_INFO "Invalid firmware '%s'\n", fn); - filp_close(filp, NULL); + fput(filp); return 0; } dp = vmalloc(l); if (dp == NULL) { printk(KERN_INFO "Out of memory loading '%s'.\n", fn); - filp_close(filp, NULL); + fput(filp); return 0; } pos = 0; @@ -38,10 +39,10 @@ static int do_mod_firmware_load(const char *fn, char **fp) { printk(KERN_INFO "Failed to read '%s'.\n", fn); vfree(dp); - filp_close(filp, NULL); + fput(filp); return 0; } - filp_close(filp, NULL); + fput(filp); *fp = dp; return (int) l; } From 7c51d177f0eac50a85abc19e60e79c1dc58955d9 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sat, 6 Apr 2013 18:00:07 -0400 Subject: [PATCH 120/204] vt6656: slightly sanitized reading config Just reading - parsing the results is left alone (and unspeakably lousy). Signed-off-by: Al Viro --- drivers/staging/vt6656/main_usb.c | 63 ++++++++++--------------------- 1 file changed, 20 insertions(+), 43 deletions(-) diff --git a/drivers/staging/vt6656/main_usb.c b/drivers/staging/vt6656/main_usb.c index a5063a6f64d9..457d91c1325d 100644 --- a/drivers/staging/vt6656/main_usb.c +++ b/drivers/staging/vt6656/main_usb.c @@ -46,6 +46,7 @@ */ #undef __NO_VERSION__ +#include #include "device.h" #include "card.h" #include "baseband.h" @@ -1316,53 +1317,29 @@ static int Config_FileGetParameter(unsigned char *string, /* if read fails, return NULL, or return data pointer */ static unsigned char *Config_FileOperation(struct vnt_private *pDevice) { - unsigned char *config_path = CONFIG_PATH; - unsigned char *buffer = NULL; - struct file *filp=NULL; - mm_segment_t old_fs = get_fs(); + unsigned char *buffer = kmalloc(1024, GFP_KERNEL); + struct file *file; - int result = 0; + if (!buffer) { + printk("allocate mem for file fail?\n"); + return NULL; + } - set_fs (KERNEL_DS); + file = filp_open(CONFIG_PATH, O_RDONLY, 0); + if (IS_ERR(file)) { + kfree(buffer); + printk("Config_FileOperation file Not exist\n"); + return NULL; + } - /* open file */ - filp = filp_open(config_path, O_RDWR, 0); - if (IS_ERR(filp)) { - printk("Config_FileOperation file Not exist\n"); - result=-1; - goto error2; - } + if (kernel_read(file, 0, buffer, 1024) < 0) { + printk("read file error?\n"); + kfree(buffer); + buffer = NULL; + } - if(!(filp->f_op) || !(filp->f_op->read) ||!(filp->f_op->write)) { - printk("file %s is not read or writeable?\n",config_path); - result = -1; - goto error1; - } - - buffer = kmalloc(1024, GFP_KERNEL); - if(buffer==NULL) { - printk("allocate mem for file fail?\n"); - result = -1; - goto error1; - } - - if(filp->f_op->read(filp, buffer, 1024, &filp->f_pos)<0) { - printk("read file error?\n"); - result = -1; - } - -error1: - if(filp_close(filp,NULL)) - printk("Config_FileOperation:close file fail\n"); - -error2: - set_fs (old_fs); - -if(result!=0) { - kfree(buffer); - buffer=NULL; -} - return buffer; + fput(file); + return buffer; } /* return --->-1:fail; >=0:successful */ From f805442e130c6eeb6c25bc5c3b3cefc27ab6dcec Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sat, 6 Apr 2013 18:11:22 -0400 Subject: [PATCH 121/204] vt6655: slightly clean reading config file Signed-off-by: Al Viro --- drivers/staging/vt6655/device_main.c | 115 ++++++++++----------------- 1 file changed, 40 insertions(+), 75 deletions(-) diff --git a/drivers/staging/vt6655/device_main.c b/drivers/staging/vt6655/device_main.c index 453c83d7fe8c..a89ab9bf38e4 100644 --- a/drivers/staging/vt6655/device_main.c +++ b/drivers/staging/vt6655/device_main.c @@ -60,6 +60,7 @@ */ #undef __NO_VERSION__ +#include #include "device.h" #include "card.h" #include "channel.h" @@ -2946,87 +2947,51 @@ static int Config_FileGetParameter(unsigned char *string, return true; } -int Config_FileOperation(PSDevice pDevice,bool fwrite,unsigned char *Parameter) { - unsigned char *config_path = CONFIG_PATH; - unsigned char *buffer = NULL; - unsigned char tmpbuffer[20]; - struct file *filp=NULL; - mm_segment_t old_fs = get_fs(); - //int oldfsuid=0,oldfsgid=0; - int result=0; +int Config_FileOperation(PSDevice pDevice,bool fwrite,unsigned char *Parameter) +{ + unsigned char *buffer = kmalloc(1024, GFP_KERNEL); + unsigned char tmpbuffer[20]; + struct file *file; + int result=0; - set_fs (KERNEL_DS); + if (!buffer) { + printk("allocate mem for file fail?\n"); + return -1; + } + file = filp_open(CONFIG_PATH, O_RDONLY, 0); + if (IS_ERR(file)) { + kfree(buffer); + printk("Config_FileOperation:open file fail?\n"); + return -1; + } - /* Can't do this anymore, so we rely on correct filesystem permissions: - //Make sure a caller can read or write power as root - oldfsuid=current->cred->fsuid; - oldfsgid=current->cred->fsgid; - current->cred->fsuid = 0; - current->cred->fsgid = 0; - */ + if (kernel_read(file, 0, buffer, 1024) < 0) { + printk("read file error?\n"); + result = -1; + goto error1; + } - //open file - filp = filp_open(config_path, O_RDWR, 0); - if (IS_ERR(filp)) { - printk("Config_FileOperation:open file fail?\n"); - result=-1; - goto error2; - } + if (Config_FileGetParameter("ZONETYPE",tmpbuffer,buffer)!=true) { + printk("get parameter error?\n"); + result = -1; + goto error1; + } - if(!(filp->f_op) || !(filp->f_op->read) ||!(filp->f_op->write)) { - printk("file %s cann't readable or writable?\n",config_path); - result = -1; - goto error1; - } - -buffer = kmalloc(1024, GFP_KERNEL); -if(buffer==NULL) { - printk("allocate mem for file fail?\n"); - result = -1; - goto error1; -} - -if(filp->f_op->read(filp, buffer, 1024, &filp->f_pos)<0) { - printk("read file error?\n"); - result = -1; - goto error1; -} - -if(Config_FileGetParameter("ZONETYPE",tmpbuffer,buffer)!=true) { - printk("get parameter error?\n"); - result = -1; - goto error1; -} - -if(memcmp(tmpbuffer,"USA",3)==0) { - result=ZoneType_USA; -} -else if(memcmp(tmpbuffer,"JAPAN",5)==0) { - result=ZoneType_Japan; -} -else if(memcmp(tmpbuffer,"EUROPE",5)==0) { - result=ZoneType_Europe; -} -else { - result = -1; - printk("Unknown Zonetype[%s]?\n",tmpbuffer); -} + if (memcmp(tmpbuffer,"USA",3)==0) { + result = ZoneType_USA; + } else if(memcmp(tmpbuffer,"JAPAN",5)==0) { + result = ZoneType_Japan; + } else if(memcmp(tmpbuffer,"EUROPE",5)==0) { + result = ZoneType_Europe; + } else { + result = -1; + printk("Unknown Zonetype[%s]?\n",tmpbuffer); + } error1: - kfree(buffer); - - if(filp_close(filp,NULL)) - printk("Config_FileOperation:close file fail\n"); - -error2: - set_fs (old_fs); - - /* - current->cred->fsuid=oldfsuid; - current->cred->fsgid=oldfsgid; - */ - - return result; + kfree(buffer); + fput(file); + return result; } From ad147d011f4e9d4e4309f7974fd19c7f875ccb14 Mon Sep 17 00:00:00 2001 From: David Howells Date: Thu, 4 Apr 2013 16:32:28 +0100 Subject: [PATCH 122/204] procfs: Clean up huge if-statement in __proc_file_read() Switch huge if-statement in __proc_file_read() around. This then puts the single line loop break immediately after the if-statement and allows us to de-indent the huge comment and make it take fewer lines. The code following the if-statement then follows naturally from the call to dp->read_proc(). Signed-off-by: David Howells --- fs/proc/generic.c | 98 +++++++++++++++++++++++------------------------ 1 file changed, 47 insertions(+), 51 deletions(-) diff --git a/fs/proc/generic.c b/fs/proc/generic.c index 5453f1c0b70c..a6a1cb5d589d 100644 --- a/fs/proc/generic.c +++ b/fs/proc/generic.c @@ -71,59 +71,55 @@ __proc_file_read(struct file *file, char __user *buf, size_t nbytes, count = min_t(size_t, PROC_BLOCK_SIZE, nbytes); start = NULL; - if (dp->read_proc) { - /* - * How to be a proc read function - * ------------------------------ - * Prototype: - * int f(char *buffer, char **start, off_t offset, - * int count, int *peof, void *dat) - * - * Assume that the buffer is "count" bytes in size. - * - * If you know you have supplied all the data you - * have, set *peof. - * - * You have three ways to return data: - * 0) Leave *start = NULL. (This is the default.) - * Put the data of the requested offset at that - * offset within the buffer. Return the number (n) - * of bytes there are from the beginning of the - * buffer up to the last byte of data. If the - * number of supplied bytes (= n - offset) is - * greater than zero and you didn't signal eof - * and the reader is prepared to take more data - * you will be called again with the requested - * offset advanced by the number of bytes - * absorbed. This interface is useful for files - * no larger than the buffer. - * 1) Set *start = an unsigned long value less than - * the buffer address but greater than zero. - * Put the data of the requested offset at the - * beginning of the buffer. Return the number of - * bytes of data placed there. If this number is - * greater than zero and you didn't signal eof - * and the reader is prepared to take more data - * you will be called again with the requested - * offset advanced by *start. This interface is - * useful when you have a large file consisting - * of a series of blocks which you want to count - * and return as wholes. - * (Hack by Paul.Russell@rustcorp.com.au) - * 2) Set *start = an address within the buffer. - * Put the data of the requested offset at *start. - * Return the number of bytes of data placed there. - * If this number is greater than zero and you - * didn't signal eof and the reader is prepared to - * take more data you will be called again with the - * requested offset advanced by the number of bytes - * absorbed. - */ - n = dp->read_proc(page, &start, *ppos, - count, &eof, dp->data); - } else + if (!dp->read_proc) break; + /* How to be a proc read function + * ------------------------------ + * Prototype: + * int f(char *buffer, char **start, off_t offset, + * int count, int *peof, void *dat) + * + * Assume that the buffer is "count" bytes in size. + * + * If you know you have supplied all the data you have, set + * *peof. + * + * You have three ways to return data: + * + * 0) Leave *start = NULL. (This is the default.) Put the + * data of the requested offset at that offset within the + * buffer. Return the number (n) of bytes there are from + * the beginning of the buffer up to the last byte of data. + * If the number of supplied bytes (= n - offset) is greater + * than zero and you didn't signal eof and the reader is + * prepared to take more data you will be called again with + * the requested offset advanced by the number of bytes + * absorbed. This interface is useful for files no larger + * than the buffer. + * + * 1) Set *start = an unsigned long value less than the buffer + * address but greater than zero. Put the data of the + * requested offset at the beginning of the buffer. Return + * the number of bytes of data placed there. If this number + * is greater than zero and you didn't signal eof and the + * reader is prepared to take more data you will be called + * again with the requested offset advanced by *start. This + * interface is useful when you have a large file consisting + * of a series of blocks which you want to count and return + * as wholes. + * (Hack by Paul.Russell@rustcorp.com.au) + * + * 2) Set *start = an address within the buffer. Put the data + * of the requested offset at *start. Return the number of + * bytes of data placed there. If this number is greater + * than zero and you didn't signal eof and the reader is + * prepared to take more data you will be called again with + * the requested offset advanced by the number of bytes + * absorbed. + */ + n = dp->read_proc(page, &start, *ppos, count, &eof, dp->data); + if (n == 0) /* end of file */ break; if (n < 0) { /* error */ From 866ad9a747bbf5461739fcae6d0a41c8971bbe1d Mon Sep 17 00:00:00 2001 From: Al Viro Date: Wed, 3 Apr 2013 19:07:30 -0400 Subject: [PATCH 123/204] procfs: preparations for remove_proc_entry() race fixes * leave ->proc_fops alone; make ->pde_users negative instead * trim pde_opener * move relevant code in fs/proc/inode.c Signed-off-by: Al Viro --- fs/proc/generic.c | 83 +------------ fs/proc/inode.c | 250 ++++++++++++++++++++-------------------- fs/proc/internal.h | 7 +- include/linux/proc_fs.h | 11 +- 4 files changed, 136 insertions(+), 215 deletions(-) diff --git a/fs/proc/generic.c b/fs/proc/generic.c index a6a1cb5d589d..bec58323629c 100644 --- a/fs/proc/generic.c +++ b/fs/proc/generic.c @@ -39,7 +39,7 @@ static int proc_match(unsigned int len, const char *name, struct proc_dir_entry /* buffer size is one page but our output routines use some slack for overruns */ #define PROC_BLOCK_SIZE (PAGE_SIZE - 1024) -static ssize_t +ssize_t __proc_file_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos) { @@ -171,48 +171,6 @@ __proc_file_read(struct file *file, char __user *buf, size_t nbytes, return retval; } -static ssize_t -proc_file_read(struct file *file, char __user *buf, size_t nbytes, - loff_t *ppos) -{ - struct proc_dir_entry *pde = PDE(file_inode(file)); - ssize_t rv = -EIO; - - spin_lock(&pde->pde_unload_lock); - if (!pde->proc_fops) { - spin_unlock(&pde->pde_unload_lock); - return rv; - } - pde->pde_users++; - spin_unlock(&pde->pde_unload_lock); - - rv = __proc_file_read(file, buf, nbytes, ppos); - - pde_users_dec(pde); - return rv; -} - -static loff_t -proc_file_lseek(struct file *file, loff_t offset, int orig) -{ - loff_t retval = -EINVAL; - switch (orig) { - case 1: - offset += file->f_pos; - /* fallthrough */ - case 0: - if (offset < 0 || offset > MAX_NON_LFS) - break; - file->f_pos = retval = offset; - } - return retval; -} - -static const struct file_operations proc_file_operations = { - .llseek = proc_file_lseek, - .read = proc_file_read, -}; - static int proc_notify_change(struct dentry *dentry, struct iattr *iattr) { struct inode *inode = dentry->d_inode; @@ -722,41 +680,6 @@ void pde_put(struct proc_dir_entry *pde) free_proc_entry(pde); } -static void entry_rundown(struct proc_dir_entry *de) -{ - spin_lock(&de->pde_unload_lock); - /* - * Stop accepting new callers into module. If you're - * dynamically allocating ->proc_fops, save a pointer somewhere. - */ - de->proc_fops = NULL; - /* Wait until all existing callers into module are done. */ - if (de->pde_users > 0) { - DECLARE_COMPLETION_ONSTACK(c); - - if (!de->pde_unload_completion) - de->pde_unload_completion = &c; - - spin_unlock(&de->pde_unload_lock); - - wait_for_completion(de->pde_unload_completion); - - spin_lock(&de->pde_unload_lock); - } - - while (!list_empty(&de->pde_openers)) { - struct pde_opener *pdeo; - - pdeo = list_first_entry(&de->pde_openers, struct pde_opener, lh); - list_del(&pdeo->lh); - spin_unlock(&de->pde_unload_lock); - pdeo->release(pdeo->inode, pdeo->file); - kfree(pdeo); - spin_lock(&de->pde_unload_lock); - } - spin_unlock(&de->pde_unload_lock); -} - /* * Remove a /proc entry and free it if it's not currently in use. */ @@ -788,7 +711,7 @@ void remove_proc_entry(const char *name, struct proc_dir_entry *parent) return; } - entry_rundown(de); + proc_entry_rundown(de); if (S_ISDIR(de->mode)) parent->nlink--; @@ -837,7 +760,7 @@ int remove_proc_subtree(const char *name, struct proc_dir_entry *parent) } spin_unlock(&proc_subdir_lock); - entry_rundown(de); + proc_entry_rundown(de); next = de->parent; if (S_ISDIR(de->mode)) next->nlink--; diff --git a/fs/proc/inode.c b/fs/proc/inode.c index a4aaaeee3342..0cd9d80f28e8 100644 --- a/fs/proc/inode.c +++ b/fs/proc/inode.c @@ -129,96 +129,138 @@ static const struct super_operations proc_sops = { .show_options = proc_show_options, }; +enum {BIAS = -1U<<31}; + +static inline int use_pde(struct proc_dir_entry *pde) +{ + int res = 1; + spin_lock(&pde->pde_unload_lock); + if (unlikely(pde->pde_users < 0)) + res = 0; + else + pde->pde_users++; + spin_unlock(&pde->pde_unload_lock); + return res; +} + static void __pde_users_dec(struct proc_dir_entry *pde) { - pde->pde_users--; - if (pde->pde_unload_completion && pde->pde_users == 0) + if (--pde->pde_users == BIAS) complete(pde->pde_unload_completion); } -void pde_users_dec(struct proc_dir_entry *pde) +static void unuse_pde(struct proc_dir_entry *pde) { spin_lock(&pde->pde_unload_lock); __pde_users_dec(pde); spin_unlock(&pde->pde_unload_lock); } +void proc_entry_rundown(struct proc_dir_entry *de) +{ + spin_lock(&de->pde_unload_lock); + de->pde_users += BIAS; + /* Wait until all existing callers into module are done. */ + if (de->pde_users != BIAS) { + DECLARE_COMPLETION_ONSTACK(c); + de->pde_unload_completion = &c; + spin_unlock(&de->pde_unload_lock); + + wait_for_completion(de->pde_unload_completion); + + spin_lock(&de->pde_unload_lock); + } + + while (!list_empty(&de->pde_openers)) { + struct pde_opener *pdeo; + struct file *file; + + pdeo = list_first_entry(&de->pde_openers, struct pde_opener, lh); + list_del(&pdeo->lh); + spin_unlock(&de->pde_unload_lock); + file = pdeo->file; + de->proc_fops->release(file_inode(file), file); + kfree(pdeo); + spin_lock(&de->pde_unload_lock); + } + spin_unlock(&de->pde_unload_lock); +} + +/* ->read_proc() users - legacy crap */ +static ssize_t +proc_file_read(struct file *file, char __user *buf, size_t nbytes, + loff_t *ppos) +{ + struct proc_dir_entry *pde = PDE(file_inode(file)); + ssize_t rv = -EIO; + if (use_pde(pde)) { + rv = __proc_file_read(file, buf, nbytes, ppos); + unuse_pde(pde); + } + return rv; +} + +static loff_t +proc_file_lseek(struct file *file, loff_t offset, int orig) +{ + loff_t retval = -EINVAL; + switch (orig) { + case 1: + offset += file->f_pos; + /* fallthrough */ + case 0: + if (offset < 0 || offset > MAX_NON_LFS) + break; + file->f_pos = retval = offset; + } + return retval; +} + +const struct file_operations proc_file_operations = { + .llseek = proc_file_lseek, + .read = proc_file_read, +}; + static loff_t proc_reg_llseek(struct file *file, loff_t offset, int whence) { struct proc_dir_entry *pde = PDE(file_inode(file)); loff_t rv = -EINVAL; - loff_t (*llseek)(struct file *, loff_t, int); - - spin_lock(&pde->pde_unload_lock); - /* - * remove_proc_entry() is going to delete PDE (as part of module - * cleanup sequence). No new callers into module allowed. - */ - if (!pde->proc_fops) { - spin_unlock(&pde->pde_unload_lock); - return rv; + if (use_pde(pde)) { + loff_t (*llseek)(struct file *, loff_t, int); + llseek = pde->proc_fops->llseek; + if (!llseek) + llseek = default_llseek; + rv = llseek(file, offset, whence); + unuse_pde(pde); } - /* - * Bump refcount so that remove_proc_entry will wail for ->llseek to - * complete. - */ - pde->pde_users++; - /* - * Save function pointer under lock, to protect against ->proc_fops - * NULL'ifying right after ->pde_unload_lock is dropped. - */ - llseek = pde->proc_fops->llseek; - spin_unlock(&pde->pde_unload_lock); - - if (!llseek) - llseek = default_llseek; - rv = llseek(file, offset, whence); - - pde_users_dec(pde); return rv; } static ssize_t proc_reg_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) { + ssize_t (*read)(struct file *, char __user *, size_t, loff_t *); struct proc_dir_entry *pde = PDE(file_inode(file)); ssize_t rv = -EIO; - ssize_t (*read)(struct file *, char __user *, size_t, loff_t *); - - spin_lock(&pde->pde_unload_lock); - if (!pde->proc_fops) { - spin_unlock(&pde->pde_unload_lock); - return rv; + if (use_pde(pde)) { + read = pde->proc_fops->read; + if (read) + rv = read(file, buf, count, ppos); + unuse_pde(pde); } - pde->pde_users++; - read = pde->proc_fops->read; - spin_unlock(&pde->pde_unload_lock); - - if (read) - rv = read(file, buf, count, ppos); - - pde_users_dec(pde); return rv; } static ssize_t proc_reg_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos) { + ssize_t (*write)(struct file *, const char __user *, size_t, loff_t *); struct proc_dir_entry *pde = PDE(file_inode(file)); ssize_t rv = -EIO; - ssize_t (*write)(struct file *, const char __user *, size_t, loff_t *); - - spin_lock(&pde->pde_unload_lock); - if (!pde->proc_fops) { - spin_unlock(&pde->pde_unload_lock); - return rv; + if (use_pde(pde)) { + write = pde->proc_fops->write; + if (write) + rv = write(file, buf, count, ppos); + unuse_pde(pde); } - pde->pde_users++; - write = pde->proc_fops->write; - spin_unlock(&pde->pde_unload_lock); - - if (write) - rv = write(file, buf, count, ppos); - - pde_users_dec(pde); return rv; } @@ -227,20 +269,12 @@ static unsigned int proc_reg_poll(struct file *file, struct poll_table_struct *p struct proc_dir_entry *pde = PDE(file_inode(file)); unsigned int rv = DEFAULT_POLLMASK; unsigned int (*poll)(struct file *, struct poll_table_struct *); - - spin_lock(&pde->pde_unload_lock); - if (!pde->proc_fops) { - spin_unlock(&pde->pde_unload_lock); - return rv; + if (use_pde(pde)) { + poll = pde->proc_fops->poll; + if (poll) + rv = poll(file, pts); + unuse_pde(pde); } - pde->pde_users++; - poll = pde->proc_fops->poll; - spin_unlock(&pde->pde_unload_lock); - - if (poll) - rv = poll(file, pts); - - pde_users_dec(pde); return rv; } @@ -249,20 +283,12 @@ static long proc_reg_unlocked_ioctl(struct file *file, unsigned int cmd, unsigne struct proc_dir_entry *pde = PDE(file_inode(file)); long rv = -ENOTTY; long (*ioctl)(struct file *, unsigned int, unsigned long); - - spin_lock(&pde->pde_unload_lock); - if (!pde->proc_fops) { - spin_unlock(&pde->pde_unload_lock); - return rv; + if (use_pde(pde)) { + ioctl = pde->proc_fops->unlocked_ioctl; + if (ioctl) + rv = ioctl(file, cmd, arg); + unuse_pde(pde); } - pde->pde_users++; - ioctl = pde->proc_fops->unlocked_ioctl; - spin_unlock(&pde->pde_unload_lock); - - if (ioctl) - rv = ioctl(file, cmd, arg); - - pde_users_dec(pde); return rv; } @@ -272,20 +298,12 @@ static long proc_reg_compat_ioctl(struct file *file, unsigned int cmd, unsigned struct proc_dir_entry *pde = PDE(file_inode(file)); long rv = -ENOTTY; long (*compat_ioctl)(struct file *, unsigned int, unsigned long); - - spin_lock(&pde->pde_unload_lock); - if (!pde->proc_fops) { - spin_unlock(&pde->pde_unload_lock); - return rv; + if (use_pde(pde)) { + compat_ioctl = pde->proc_fops->compat_ioctl; + if (compat_ioctl) + rv = compat_ioctl(file, cmd, arg); + unuse_pde(pde); } - pde->pde_users++; - compat_ioctl = pde->proc_fops->compat_ioctl; - spin_unlock(&pde->pde_unload_lock); - - if (compat_ioctl) - rv = compat_ioctl(file, cmd, arg); - - pde_users_dec(pde); return rv; } #endif @@ -295,20 +313,12 @@ static int proc_reg_mmap(struct file *file, struct vm_area_struct *vma) struct proc_dir_entry *pde = PDE(file_inode(file)); int rv = -EIO; int (*mmap)(struct file *, struct vm_area_struct *); - - spin_lock(&pde->pde_unload_lock); - if (!pde->proc_fops) { - spin_unlock(&pde->pde_unload_lock); - return rv; + if (use_pde(pde)) { + mmap = pde->proc_fops->mmap; + if (mmap) + rv = mmap(file, vma); + unuse_pde(pde); } - pde->pde_users++; - mmap = pde->proc_fops->mmap; - spin_unlock(&pde->pde_unload_lock); - - if (mmap) - rv = mmap(file, vma); - - pde_users_dec(pde); return rv; } @@ -334,16 +344,12 @@ static int proc_reg_open(struct inode *inode, struct file *file) if (!pdeo) return -ENOMEM; - spin_lock(&pde->pde_unload_lock); - if (!pde->proc_fops) { - spin_unlock(&pde->pde_unload_lock); + if (!use_pde(pde)) { kfree(pdeo); return -ENOENT; } - pde->pde_users++; open = pde->proc_fops->open; release = pde->proc_fops->release; - spin_unlock(&pde->pde_unload_lock); if (open) rv = open(inode, file); @@ -351,10 +357,8 @@ static int proc_reg_open(struct inode *inode, struct file *file) spin_lock(&pde->pde_unload_lock); if (rv == 0 && release) { /* To know what to release. */ - pdeo->inode = inode; pdeo->file = file; /* Strictly for "too late" ->release in proc_reg_release(). */ - pdeo->release = release; list_add(&pdeo->lh, &pde->pde_openers); } else kfree(pdeo); @@ -364,12 +368,12 @@ static int proc_reg_open(struct inode *inode, struct file *file) } static struct pde_opener *find_pde_opener(struct proc_dir_entry *pde, - struct inode *inode, struct file *file) + struct file *file) { struct pde_opener *pdeo; list_for_each_entry(pdeo, &pde->pde_openers, lh) { - if (pdeo->inode == inode && pdeo->file == file) + if (pdeo->file == file) return pdeo; } return NULL; @@ -383,8 +387,8 @@ static int proc_reg_release(struct inode *inode, struct file *file) struct pde_opener *pdeo; spin_lock(&pde->pde_unload_lock); - pdeo = find_pde_opener(pde, inode, file); - if (!pde->proc_fops) { + pdeo = find_pde_opener(pde, file); + if (pde->pde_users < 0) { /* * Can't simply exit, __fput() will think that everything is OK, * and move on to freeing struct file. remove_proc_entry() will @@ -396,7 +400,7 @@ static int proc_reg_release(struct inode *inode, struct file *file) if (pdeo) { list_del(&pdeo->lh); spin_unlock(&pde->pde_unload_lock); - rv = pdeo->release(inode, file); + rv = pde->proc_fops->release(inode, file); kfree(pdeo); } else spin_unlock(&pde->pde_unload_lock); @@ -413,7 +417,7 @@ static int proc_reg_release(struct inode *inode, struct file *file) if (release) rv = release(inode, file); - pde_users_dec(pde); + unuse_pde(pde); return rv; } diff --git a/fs/proc/internal.h b/fs/proc/internal.h index 9c93a53f371d..c43d536f93b9 100644 --- a/fs/proc/internal.h +++ b/fs/proc/internal.h @@ -151,12 +151,13 @@ int proc_readdir_de(struct proc_dir_entry *de, struct file *filp, void *dirent, filldir_t filldir); struct pde_opener { - struct inode *inode; struct file *file; - int (*release)(struct inode *, struct file *); struct list_head lh; }; -void pde_users_dec(struct proc_dir_entry *pde); + +ssize_t __proc_file_read(struct file *, char __user *, size_t, loff_t *); +extern const struct file_operations proc_file_operations; +void proc_entry_rundown(struct proc_dir_entry *); extern spinlock_t proc_subdir_lock; diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h index bcc0e10ef1df..947ae7eb63ef 100644 --- a/include/linux/proc_fs.h +++ b/include/linux/proc_fs.h @@ -60,20 +60,13 @@ struct proc_dir_entry { kgid_t gid; loff_t size; const struct inode_operations *proc_iops; - /* - * NULL ->proc_fops means "PDE is going away RSN" or - * "PDE is just created". In either case, e.g. ->read_proc won't be - * called because it's too late or too early, respectively. - * - * If you're allocating ->proc_fops dynamically, save a pointer - * somewhere. - */ const struct file_operations *proc_fops; struct proc_dir_entry *next, *parent, *subdir; void *data; read_proc_t *read_proc; atomic_t count; /* use count */ - int pde_users; /* number of callers into module in progress */ + int pde_users; /* number of callers into module in progress; */ + /* negative -> it's going away RSN */ struct completion *pde_unload_completion; struct list_head pde_openers; /* who did ->open, but not ->release */ spinlock_t pde_unload_lock; /* proc_fops checks and pde_users bumps */ From ca469f35a8e9ef12571a4b80ac6d7fdc0260fb44 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Wed, 3 Apr 2013 19:57:00 -0400 Subject: [PATCH 124/204] deal with races between remove_proc_entry() and proc_reg_release() * serialize the call of ->release() on per-pdeo mutex * don't remove pdeo from per-pde list until we are through with it Signed-off-by: Al Viro --- fs/proc/inode.c | 85 +++++++++++++++++----------------------------- fs/proc/internal.h | 2 ++ 2 files changed, 34 insertions(+), 53 deletions(-) diff --git a/fs/proc/inode.c b/fs/proc/inode.c index 0cd9d80f28e8..b5b204d6b07f 100644 --- a/fs/proc/inode.c +++ b/fs/proc/inode.c @@ -156,6 +156,29 @@ static void unuse_pde(struct proc_dir_entry *pde) spin_unlock(&pde->pde_unload_lock); } +/* pde is locked */ +static void close_pdeo(struct proc_dir_entry *pde, struct pde_opener *pdeo) +{ + pdeo->count++; + if (!mutex_trylock(&pdeo->mutex)) { + /* somebody else is doing that, just wait */ + spin_unlock(&pde->pde_unload_lock); + mutex_lock(&pdeo->mutex); + spin_lock(&pde->pde_unload_lock); + WARN_ON(!list_empty(&pdeo->lh)); + } else { + struct file *file; + spin_unlock(&pde->pde_unload_lock); + file = pdeo->file; + pde->proc_fops->release(file_inode(file), file); + spin_lock(&pde->pde_unload_lock); + list_del_init(&pdeo->lh); + } + mutex_unlock(&pdeo->mutex); + if (!--pdeo->count) + kfree(pdeo); +} + void proc_entry_rundown(struct proc_dir_entry *de) { spin_lock(&de->pde_unload_lock); @@ -173,15 +196,8 @@ void proc_entry_rundown(struct proc_dir_entry *de) while (!list_empty(&de->pde_openers)) { struct pde_opener *pdeo; - struct file *file; - pdeo = list_first_entry(&de->pde_openers, struct pde_opener, lh); - list_del(&pdeo->lh); - spin_unlock(&de->pde_unload_lock); - file = pdeo->file; - de->proc_fops->release(file_inode(file), file); - kfree(pdeo); - spin_lock(&de->pde_unload_lock); + close_pdeo(de, pdeo); } spin_unlock(&de->pde_unload_lock); } @@ -357,6 +373,8 @@ static int proc_reg_open(struct inode *inode, struct file *file) spin_lock(&pde->pde_unload_lock); if (rv == 0 && release) { /* To know what to release. */ + mutex_init(&pdeo->mutex); + pdeo->count = 0; pdeo->file = file; /* Strictly for "too late" ->release in proc_reg_release(). */ list_add(&pdeo->lh, &pde->pde_openers); @@ -367,58 +385,19 @@ static int proc_reg_open(struct inode *inode, struct file *file) return rv; } -static struct pde_opener *find_pde_opener(struct proc_dir_entry *pde, - struct file *file) -{ - struct pde_opener *pdeo; - - list_for_each_entry(pdeo, &pde->pde_openers, lh) { - if (pdeo->file == file) - return pdeo; - } - return NULL; -} - static int proc_reg_release(struct inode *inode, struct file *file) { struct proc_dir_entry *pde = PDE(inode); - int rv = 0; - int (*release)(struct inode *, struct file *); struct pde_opener *pdeo; - spin_lock(&pde->pde_unload_lock); - pdeo = find_pde_opener(pde, file); - if (pde->pde_users < 0) { - /* - * Can't simply exit, __fput() will think that everything is OK, - * and move on to freeing struct file. remove_proc_entry() will - * find slacker in opener's list and will try to do non-trivial - * things with struct file. Therefore, remove opener from list. - * - * But if opener is removed from list, who will ->release it? - */ - if (pdeo) { - list_del(&pdeo->lh); - spin_unlock(&pde->pde_unload_lock); - rv = pde->proc_fops->release(inode, file); - kfree(pdeo); - } else - spin_unlock(&pde->pde_unload_lock); - return rv; - } - pde->pde_users++; - release = pde->proc_fops->release; - if (pdeo) { - list_del(&pdeo->lh); - kfree(pdeo); + list_for_each_entry(pdeo, &pde->pde_openers, lh) { + if (pdeo->file == file) { + close_pdeo(pde, pdeo); + break; + } } spin_unlock(&pde->pde_unload_lock); - - if (release) - rv = release(inode, file); - - unuse_pde(pde); - return rv; + return 0; } static const struct file_operations proc_reg_file_ops = { diff --git a/fs/proc/internal.h b/fs/proc/internal.h index c43d536f93b9..e2fa9345a9a8 100644 --- a/fs/proc/internal.h +++ b/fs/proc/internal.h @@ -153,6 +153,8 @@ int proc_readdir_de(struct proc_dir_entry *de, struct file *filp, void *dirent, struct pde_opener { struct file *file; struct list_head lh; + int count; /* number of threads in close_pdeo() */ + struct mutex mutex; }; ssize_t __proc_file_read(struct file *, char __user *, size_t, loff_t *); From 05c0ae21c034a6f7c6f4c0c63a31167ebb4b061f Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 4 Apr 2013 16:28:47 -0400 Subject: [PATCH 125/204] try a saner locking for pde_opener... Signed-off-by: Al Viro --- fs/proc/inode.c | 62 ++++++++++++++--------------------------- fs/proc/internal.h | 4 +-- include/linux/proc_fs.h | 2 +- 3 files changed, 24 insertions(+), 44 deletions(-) diff --git a/fs/proc/inode.c b/fs/proc/inode.c index b5b204d6b07f..3b14a45870a9 100644 --- a/fs/proc/inode.c +++ b/fs/proc/inode.c @@ -133,67 +133,48 @@ enum {BIAS = -1U<<31}; static inline int use_pde(struct proc_dir_entry *pde) { - int res = 1; - spin_lock(&pde->pde_unload_lock); - if (unlikely(pde->pde_users < 0)) - res = 0; - else - pde->pde_users++; - spin_unlock(&pde->pde_unload_lock); - return res; -} - -static void __pde_users_dec(struct proc_dir_entry *pde) -{ - if (--pde->pde_users == BIAS) - complete(pde->pde_unload_completion); + return atomic_inc_unless_negative(&pde->in_use); } static void unuse_pde(struct proc_dir_entry *pde) { - spin_lock(&pde->pde_unload_lock); - __pde_users_dec(pde); - spin_unlock(&pde->pde_unload_lock); + if (atomic_dec_return(&pde->in_use) == BIAS) + complete(pde->pde_unload_completion); } /* pde is locked */ static void close_pdeo(struct proc_dir_entry *pde, struct pde_opener *pdeo) { - pdeo->count++; - if (!mutex_trylock(&pdeo->mutex)) { + if (pdeo->closing) { /* somebody else is doing that, just wait */ + DECLARE_COMPLETION_ONSTACK(c); + pdeo->c = &c; spin_unlock(&pde->pde_unload_lock); - mutex_lock(&pdeo->mutex); + wait_for_completion(&c); spin_lock(&pde->pde_unload_lock); - WARN_ON(!list_empty(&pdeo->lh)); } else { struct file *file; + pdeo->closing = 1; spin_unlock(&pde->pde_unload_lock); file = pdeo->file; pde->proc_fops->release(file_inode(file), file); spin_lock(&pde->pde_unload_lock); list_del_init(&pdeo->lh); - } - mutex_unlock(&pdeo->mutex); - if (!--pdeo->count) + if (pdeo->c) + complete(pdeo->c); kfree(pdeo); + } } void proc_entry_rundown(struct proc_dir_entry *de) { - spin_lock(&de->pde_unload_lock); - de->pde_users += BIAS; + DECLARE_COMPLETION_ONSTACK(c); /* Wait until all existing callers into module are done. */ - if (de->pde_users != BIAS) { - DECLARE_COMPLETION_ONSTACK(c); - de->pde_unload_completion = &c; - spin_unlock(&de->pde_unload_lock); - - wait_for_completion(de->pde_unload_completion); - - spin_lock(&de->pde_unload_lock); - } + de->pde_unload_completion = &c; + if (atomic_add_return(BIAS, &de->in_use) != BIAS) + wait_for_completion(&c); + spin_lock(&de->pde_unload_lock); while (!list_empty(&de->pde_openers)) { struct pde_opener *pdeo; pdeo = list_first_entry(&de->pde_openers, struct pde_opener, lh); @@ -356,7 +337,7 @@ static int proc_reg_open(struct inode *inode, struct file *file) * by hand in remove_proc_entry(). For this, save opener's credentials * for later. */ - pdeo = kmalloc(sizeof(struct pde_opener), GFP_KERNEL); + pdeo = kzalloc(sizeof(struct pde_opener), GFP_KERNEL); if (!pdeo) return -ENOMEM; @@ -370,18 +351,17 @@ static int proc_reg_open(struct inode *inode, struct file *file) if (open) rv = open(inode, file); - spin_lock(&pde->pde_unload_lock); if (rv == 0 && release) { /* To know what to release. */ - mutex_init(&pdeo->mutex); - pdeo->count = 0; pdeo->file = file; /* Strictly for "too late" ->release in proc_reg_release(). */ + spin_lock(&pde->pde_unload_lock); list_add(&pdeo->lh, &pde->pde_openers); + spin_unlock(&pde->pde_unload_lock); } else kfree(pdeo); - __pde_users_dec(pde); - spin_unlock(&pde->pde_unload_lock); + + unuse_pde(pde); return rv; } diff --git a/fs/proc/internal.h b/fs/proc/internal.h index e2fa9345a9a8..46a7e2a7b904 100644 --- a/fs/proc/internal.h +++ b/fs/proc/internal.h @@ -153,8 +153,8 @@ int proc_readdir_de(struct proc_dir_entry *de, struct file *filp, void *dirent, struct pde_opener { struct file *file; struct list_head lh; - int count; /* number of threads in close_pdeo() */ - struct mutex mutex; + int closing; + struct completion *c; }; ssize_t __proc_file_read(struct file *, char __user *, size_t, loff_t *); diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h index 947ae7eb63ef..2781e498f709 100644 --- a/include/linux/proc_fs.h +++ b/include/linux/proc_fs.h @@ -65,7 +65,7 @@ struct proc_dir_entry { void *data; read_proc_t *read_proc; atomic_t count; /* use count */ - int pde_users; /* number of callers into module in progress; */ + atomic_t in_use; /* number of callers into module in progress; */ /* negative -> it's going away RSN */ struct completion *pde_unload_completion; struct list_head pde_openers; /* who did ->open, but not ->release */ From 2ce8fce2ea1663d7a62dd780653a137ca33d6ee4 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sat, 13 Apr 2013 16:35:35 -0400 Subject: [PATCH 126/204] cx25821: sanitize cx25821_get_audio_data() a bit Signed-off-by: Al Viro --- .../pci/cx25821/cx25821-audio-upstream.c | 93 ++++++------------- 1 file changed, 30 insertions(+), 63 deletions(-) diff --git a/drivers/media/pci/cx25821/cx25821-audio-upstream.c b/drivers/media/pci/cx25821/cx25821-audio-upstream.c index 87491ca05ee5..d930f308e94e 100644 --- a/drivers/media/pci/cx25821/cx25821-audio-upstream.c +++ b/drivers/media/pci/cx25821/cx25821-audio-upstream.c @@ -259,80 +259,47 @@ void cx25821_free_mem_upstream_audio(struct cx25821_dev *dev) static int cx25821_get_audio_data(struct cx25821_dev *dev, struct sram_channel *sram_ch) { - struct file *myfile; + struct file *file; int frame_index_temp = dev->_audioframe_index; int i = 0; - int line_size = AUDIO_LINE_SIZE; int frame_size = AUDIO_DATA_BUF_SZ; int frame_offset = frame_size * frame_index_temp; - ssize_t vfs_read_retval = 0; - char mybuf[line_size]; + char mybuf[AUDIO_LINE_SIZE]; loff_t file_offset = dev->_audioframe_count * frame_size; - loff_t pos; - mm_segment_t old_fs; + char *p = NULL; if (dev->_audiofile_status == END_OF_FILE) return 0; - myfile = filp_open(dev->_audiofilename, O_RDONLY | O_LARGEFILE, 0); - - if (IS_ERR(myfile)) { - const int open_errno = -PTR_ERR(myfile); - pr_err("%s(): ERROR opening file(%s) with errno = %d!\n", - __func__, dev->_audiofilename, open_errno); - return PTR_ERR(myfile); - } else { - if (!(myfile->f_op)) { - pr_err("%s(): File has no file operations registered!\n", - __func__); - filp_close(myfile, NULL); - return -EIO; - } - - if (!myfile->f_op->read) { - pr_err("%s(): File has no READ operations registered!\n", - __func__); - filp_close(myfile, NULL); - return -EIO; - } - - pos = myfile->f_pos; - old_fs = get_fs(); - set_fs(KERNEL_DS); - - for (i = 0; i < dev->_audio_lines_count; i++) { - pos = file_offset; - - vfs_read_retval = vfs_read(myfile, mybuf, line_size, - &pos); - - if (vfs_read_retval > 0 && vfs_read_retval == line_size - && dev->_audiodata_buf_virt_addr != NULL) { - memcpy((void *)(dev->_audiodata_buf_virt_addr + - frame_offset / 4), mybuf, - vfs_read_retval); - } - - file_offset += vfs_read_retval; - frame_offset += vfs_read_retval; - - if (vfs_read_retval < line_size) { - pr_info("Done: exit %s() since no more bytes to read from Audio file\n", - __func__); - break; - } - } - - if (i > 0) - dev->_audioframe_count++; - - dev->_audiofile_status = (vfs_read_retval == line_size) ? - IN_PROGRESS : END_OF_FILE; - - set_fs(old_fs); - filp_close(myfile, NULL); + file = filp_open(dev->_audiofilename, O_RDONLY | O_LARGEFILE, 0); + if (IS_ERR(file)) { + pr_err("%s(): ERROR opening file(%s) with errno = %ld!\n", + __func__, dev->_audiofilename, -PTR_ERR(file)); + return PTR_ERR(file); } + if (dev->_audiodata_buf_virt_addr) + p = (char *)dev->_audiodata_buf_virt_addr + frame_offset; + + for (i = 0; i < dev->_audio_lines_count; i++) { + int n = kernel_read(file, file_offset, mybuf, AUDIO_LINE_SIZE); + if (n < AUDIO_LINE_SIZE) { + pr_info("Done: exit %s() since no more bytes to read from Audio file\n", + __func__); + dev->_audiofile_status = END_OF_FILE; + fput(file); + return 0; + } + dev->_audiofile_status = IN_PROGRESS; + if (p) { + memcpy(p, mybuf, n); + p += n; + } + file_offset += n; + } + dev->_audioframe_count++; + fput(file); + return 0; } From 3af0761307d04f6b9a4626fb80011a22c143d75e Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sat, 13 Apr 2013 16:48:24 -0400 Subject: [PATCH 127/204] cx25821: sanitize cx25821_openfile_audio() a bit... Signed-off-by: Al Viro --- .../pci/cx25821/cx25821-audio-upstream.c | 104 ++++++------------ 1 file changed, 32 insertions(+), 72 deletions(-) diff --git a/drivers/media/pci/cx25821/cx25821-audio-upstream.c b/drivers/media/pci/cx25821/cx25821-audio-upstream.c index d930f308e94e..d6dfb5765d0b 100644 --- a/drivers/media/pci/cx25821/cx25821-audio-upstream.c +++ b/drivers/media/pci/cx25821/cx25821-audio-upstream.c @@ -321,81 +321,41 @@ static void cx25821_audioups_handler(struct work_struct *work) static int cx25821_openfile_audio(struct cx25821_dev *dev, struct sram_channel *sram_ch) { - struct file *myfile; - int i = 0, j = 0; - int line_size = AUDIO_LINE_SIZE; - ssize_t vfs_read_retval = 0; - char mybuf[line_size]; - loff_t pos; - loff_t offset = (unsigned long)0; - mm_segment_t old_fs; + char *p = (void *)dev->_audiodata_buf_virt_addr; + struct file *file; + loff_t offset; + int i, j; - myfile = filp_open(dev->_audiofilename, O_RDONLY | O_LARGEFILE, 0); - - if (IS_ERR(myfile)) { - const int open_errno = -PTR_ERR(myfile); - pr_err("%s(): ERROR opening file(%s) with errno = %d!\n", - __func__, dev->_audiofilename, open_errno); - return PTR_ERR(myfile); - } else { - if (!(myfile->f_op)) { - pr_err("%s(): File has no file operations registered!\n", - __func__); - filp_close(myfile, NULL); - return -EIO; - } - - if (!myfile->f_op->read) { - pr_err("%s(): File has no READ operations registered!\n", - __func__); - filp_close(myfile, NULL); - return -EIO; - } - - pos = myfile->f_pos; - old_fs = get_fs(); - set_fs(KERNEL_DS); - - for (j = 0; j < NUM_AUDIO_FRAMES; j++) { - for (i = 0; i < dev->_audio_lines_count; i++) { - pos = offset; - - vfs_read_retval = vfs_read(myfile, mybuf, - line_size, &pos); - - if (vfs_read_retval > 0 && - vfs_read_retval == line_size && - dev->_audiodata_buf_virt_addr != NULL) { - memcpy((void *)(dev-> - _audiodata_buf_virt_addr - + offset / 4), mybuf, - vfs_read_retval); - } - - offset += vfs_read_retval; - - if (vfs_read_retval < line_size) { - pr_info("Done: exit %s() since no more bytes to read from Audio file\n", - __func__); - break; - } - } - - if (i > 0) - dev->_audioframe_count++; - - if (vfs_read_retval < line_size) - break; - } - - dev->_audiofile_status = (vfs_read_retval == line_size) ? - IN_PROGRESS : END_OF_FILE; - - set_fs(old_fs); - myfile->f_pos = 0; - filp_close(myfile, NULL); + file = filp_open(dev->_audiofilename, O_RDONLY | O_LARGEFILE, 0); + if (IS_ERR(file)) { + pr_err("%s(): ERROR opening file(%s) with errno = %ld!\n", + __func__, dev->_audiofilename, PTR_ERR(file)); + return PTR_ERR(file); } + for (j = 0, offset = 0; j < NUM_AUDIO_FRAMES; j++) { + for (i = 0; i < dev->_audio_lines_count; i++) { + char buf[AUDIO_LINE_SIZE]; + int n = kernel_read(file, offset, buf, + AUDIO_LINE_SIZE); + + if (n < AUDIO_LINE_SIZE) { + pr_info("Done: exit %s() since no more bytes to read from Audio file\n", + __func__); + dev->_audiofile_status = END_OF_FILE; + fput(file); + return 0; + } + + if (p) + memcpy(p + offset, buf, n); + + offset += n; + } + dev->_audioframe_count++; + } + dev->_audiofile_status = IN_PROGRESS; + fput(file); return 0; } From 3dc20cb282ec03cc4c997130d680c800011ed479 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sat, 13 Apr 2013 20:31:37 -0400 Subject: [PATCH 128/204] new helper: read_code() switch binfmts that use ->read() to that (and to kernel_read() in several cases in binfmt_flat - sure, it's nommu, but still, doing ->read() into kmalloc'ed buffer...) Signed-off-by: Al Viro --- arch/x86/ia32/ia32_aout.c | 30 ++++++------------------------ fs/binfmt_aout.c | 25 ++++++------------------- fs/binfmt_elf_fdpic.c | 7 ++----- fs/binfmt_flat.c | 37 ++++++++++++++++++------------------- fs/exec.c | 9 +++++++++ include/linux/binfmts.h | 1 + 6 files changed, 42 insertions(+), 67 deletions(-) diff --git a/arch/x86/ia32/ia32_aout.c b/arch/x86/ia32/ia32_aout.c index 03abf9b70011..03d721cbbc32 100644 --- a/arch/x86/ia32/ia32_aout.c +++ b/arch/x86/ia32/ia32_aout.c @@ -323,11 +323,8 @@ static int load_aout_binary(struct linux_binprm *bprm) if (N_MAGIC(ex) == OMAGIC) { unsigned long text_addr, map_size; - loff_t pos; text_addr = N_TXTADDR(ex); - - pos = 32; map_size = ex.a_text+ex.a_data; error = vm_brk(text_addr & PAGE_MASK, map_size); @@ -337,15 +334,12 @@ static int load_aout_binary(struct linux_binprm *bprm) return error; } - error = bprm->file->f_op->read(bprm->file, - (char __user *)text_addr, - ex.a_text+ex.a_data, &pos); + error = read_code(bprm->file, text_addr, 32, + ex.a_text + ex.a_data); if ((signed long)error < 0) { send_sig(SIGKILL, current, 0); return error; } - - flush_icache_range(text_addr, text_addr+ex.a_text+ex.a_data); } else { #ifdef WARN_OLD static unsigned long error_time, error_time2; @@ -367,15 +361,9 @@ static int load_aout_binary(struct linux_binprm *bprm) #endif if (!bprm->file->f_op->mmap || (fd_offset & ~PAGE_MASK) != 0) { - loff_t pos = fd_offset; - vm_brk(N_TXTADDR(ex), ex.a_text+ex.a_data); - bprm->file->f_op->read(bprm->file, - (char __user *)N_TXTADDR(ex), - ex.a_text+ex.a_data, &pos); - flush_icache_range((unsigned long) N_TXTADDR(ex), - (unsigned long) N_TXTADDR(ex) + - ex.a_text+ex.a_data); + read_code(bprm->file, N_TXTADDR(ex), fd_offset, + ex.a_text+ex.a_data); goto beyond_if; } @@ -452,8 +440,6 @@ static int load_aout_library(struct file *file) start_addr = ex.a_entry & 0xfffff000; if ((N_TXTOFF(ex) & ~PAGE_MASK) != 0) { - loff_t pos = N_TXTOFF(ex); - #ifdef WARN_OLD static unsigned long error_time; if (time_after(jiffies, error_time + 5*HZ)) { @@ -466,12 +452,8 @@ static int load_aout_library(struct file *file) #endif vm_brk(start_addr, ex.a_text + ex.a_data + ex.a_bss); - file->f_op->read(file, (char __user *)start_addr, - ex.a_text + ex.a_data, &pos); - flush_icache_range((unsigned long) start_addr, - (unsigned long) start_addr + ex.a_text + - ex.a_data); - + read_code(file, start_addr, N_TXTOFF(ex), + ex.a_text + ex.a_data); retval = 0; goto out; } diff --git a/fs/binfmt_aout.c b/fs/binfmt_aout.c index bbc8f8827eac..b23253df8756 100644 --- a/fs/binfmt_aout.c +++ b/fs/binfmt_aout.c @@ -287,15 +287,12 @@ static int load_aout_binary(struct linux_binprm * bprm) return error; } - error = bprm->file->f_op->read(bprm->file, - (char __user *)text_addr, - ex.a_text+ex.a_data, &pos); + error = read_code(bprm->file, text_addr, pos, + ex.a_text+ex.a_data); if ((signed long)error < 0) { send_sig(SIGKILL, current, 0); return error; } - - flush_icache_range(text_addr, text_addr+ex.a_text+ex.a_data); } else { if ((ex.a_text & 0xfff || ex.a_data & 0xfff) && (N_MAGIC(ex) != NMAGIC) && printk_ratelimit()) @@ -311,14 +308,9 @@ static int load_aout_binary(struct linux_binprm * bprm) } if (!bprm->file->f_op->mmap||((fd_offset & ~PAGE_MASK) != 0)) { - loff_t pos = fd_offset; vm_brk(N_TXTADDR(ex), ex.a_text+ex.a_data); - bprm->file->f_op->read(bprm->file, - (char __user *)N_TXTADDR(ex), - ex.a_text+ex.a_data, &pos); - flush_icache_range((unsigned long) N_TXTADDR(ex), - (unsigned long) N_TXTADDR(ex) + - ex.a_text+ex.a_data); + read_code(bprm->file, N_TXTADDR(ex), fd_offset, + ex.a_text + ex.a_data); goto beyond_if; } @@ -397,8 +389,6 @@ static int load_aout_library(struct file *file) start_addr = ex.a_entry & 0xfffff000; if ((N_TXTOFF(ex) & ~PAGE_MASK) != 0) { - loff_t pos = N_TXTOFF(ex); - if (printk_ratelimit()) { printk(KERN_WARNING @@ -407,11 +397,8 @@ static int load_aout_library(struct file *file) } vm_brk(start_addr, ex.a_text + ex.a_data + ex.a_bss); - file->f_op->read(file, (char __user *)start_addr, - ex.a_text + ex.a_data, &pos); - flush_icache_range((unsigned long) start_addr, - (unsigned long) start_addr + ex.a_text + ex.a_data); - + read_code(file, start_addr, N_TXTOFF(ex), + ex.a_text + ex.a_data); retval = 0; goto out; } diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c index 9c13e023e2b7..2711d9901632 100644 --- a/fs/binfmt_elf_fdpic.c +++ b/fs/binfmt_elf_fdpic.c @@ -926,7 +926,6 @@ static int elf_fdpic_map_file_constdisp_on_uclinux( struct elf32_fdpic_loadseg *seg; struct elf32_phdr *phdr; unsigned long load_addr, base = ULONG_MAX, top = 0, maddr = 0, mflags; - loff_t fpos; int loop, ret; load_addr = params->load_addr; @@ -964,14 +963,12 @@ static int elf_fdpic_map_file_constdisp_on_uclinux( if (params->phdrs[loop].p_type != PT_LOAD) continue; - fpos = phdr->p_offset; - seg->addr = maddr + (phdr->p_vaddr - base); seg->p_vaddr = phdr->p_vaddr; seg->p_memsz = phdr->p_memsz; - ret = file->f_op->read(file, (void *) seg->addr, - phdr->p_filesz, &fpos); + ret = read_code(file, seg->addr, phdr->p_offset, + phdr->p_filesz); if (ret < 0) return ret; diff --git a/fs/binfmt_flat.c b/fs/binfmt_flat.c index 2036d21baaef..d50bbe59da1e 100644 --- a/fs/binfmt_flat.c +++ b/fs/binfmt_flat.c @@ -207,11 +207,12 @@ static int decompress_exec( /* Read in first chunk of data and parse gzip header. */ fpos = offset; - ret = bprm->file->f_op->read(bprm->file, buf, LBUFSIZE, &fpos); + ret = kernel_read(bprm->file, offset, buf, LBUFSIZE); strm.next_in = buf; strm.avail_in = ret; strm.total_in = 0; + fpos += ret; retval = -ENOEXEC; @@ -277,7 +278,7 @@ static int decompress_exec( } while ((ret = zlib_inflate(&strm, Z_NO_FLUSH)) == Z_OK) { - ret = bprm->file->f_op->read(bprm->file, buf, LBUFSIZE, &fpos); + ret = kernel_read(bprm->file, fpos, buf, LBUFSIZE); if (ret <= 0) break; len -= ret; @@ -285,6 +286,7 @@ static int decompress_exec( strm.next_in = buf; strm.avail_in = ret; strm.total_in = 0; + fpos += ret; } if (ret < 0) { @@ -428,6 +430,7 @@ static int load_flat_file(struct linux_binprm * bprm, unsigned long textpos = 0, datapos = 0, result; unsigned long realdatastart = 0; unsigned long text_len, data_len, bss_len, stack_len, flags; + unsigned long full_data; unsigned long len, memp = 0; unsigned long memp_size, extra, rlim; unsigned long *reloc = 0, *rp; @@ -451,6 +454,7 @@ static int load_flat_file(struct linux_binprm * bprm, relocs = ntohl(hdr->reloc_count); flags = ntohl(hdr->flags); rev = ntohl(hdr->rev); + full_data = data_len + relocs * sizeof(unsigned long); if (strncmp(hdr->magic, "bFLT", 4)) { /* @@ -577,12 +581,12 @@ static int load_flat_file(struct linux_binprm * bprm, #ifdef CONFIG_BINFMT_ZFLAT if (flags & FLAT_FLAG_GZDATA) { result = decompress_exec(bprm, fpos, (char *) datapos, - data_len + (relocs * sizeof(unsigned long)), 0); + full_data, 0); } else #endif { - result = bprm->file->f_op->read(bprm->file, (char *) datapos, - data_len + (relocs * sizeof(unsigned long)), &fpos); + result = read_code(bprm->file, datapos, fpos, + full_data); } if (IS_ERR_VALUE(result)) { printk("Unable to read data+bss, errno %d\n", (int)-result); @@ -627,30 +631,25 @@ static int load_flat_file(struct linux_binprm * bprm, if (flags & FLAT_FLAG_GZIP) { result = decompress_exec(bprm, sizeof (struct flat_hdr), (((char *) textpos) + sizeof (struct flat_hdr)), - (text_len + data_len + (relocs * sizeof(unsigned long)) + (text_len + full_data - sizeof (struct flat_hdr)), 0); memmove((void *) datapos, (void *) realdatastart, - data_len + (relocs * sizeof(unsigned long))); + full_data); } else if (flags & FLAT_FLAG_GZDATA) { - fpos = 0; - result = bprm->file->f_op->read(bprm->file, - (char *) textpos, text_len, &fpos); + result = read_code(bprm->file, textpos, 0, text_len); if (!IS_ERR_VALUE(result)) result = decompress_exec(bprm, text_len, (char *) datapos, - data_len + (relocs * sizeof(unsigned long)), 0); + full_data, 0); } else #endif { - fpos = 0; - result = bprm->file->f_op->read(bprm->file, - (char *) textpos, text_len, &fpos); - if (!IS_ERR_VALUE(result)) { - fpos = ntohl(hdr->data_start); - result = bprm->file->f_op->read(bprm->file, (char *) datapos, - data_len + (relocs * sizeof(unsigned long)), &fpos); - } + result = read_code(bprm->file, textpos, 0, text_len); + if (!IS_ERR_VALUE(result)) + result = read_code(bprm->file, datapos, + ntohl(hdr->data_start), + full_data); } if (IS_ERR_VALUE(result)) { printk("Unable to read code+data+bss, errno %d\n",(int)-result); diff --git a/fs/exec.c b/fs/exec.c index a96a4885bbbf..77dc9096440f 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -802,6 +802,15 @@ int kernel_read(struct file *file, loff_t offset, EXPORT_SYMBOL(kernel_read); +ssize_t read_code(struct file *file, unsigned long addr, loff_t pos, size_t len) +{ + ssize_t res = file->f_op->read(file, (void __user *)addr, len, &pos); + if (res > 0) + flush_icache_range(addr, addr + len); + return res; +} +EXPORT_SYMBOL(read_code); + static int exec_mmap(struct mm_struct *mm) { struct task_struct *tsk; diff --git a/include/linux/binfmts.h b/include/linux/binfmts.h index c3a09149f793..70cf138690e9 100644 --- a/include/linux/binfmts.h +++ b/include/linux/binfmts.h @@ -118,5 +118,6 @@ extern int prepare_bprm_creds(struct linux_binprm *bprm); extern void install_exec_creds(struct linux_binprm *bprm); extern void set_binfmt(struct linux_binfmt *new); extern void free_bprm(struct linux_binprm *); +extern ssize_t read_code(struct file *, unsigned long, loff_t, size_t); #endif /* _LINUX_BINFMTS_H */ From b5edfd27699de420f3af2c34fc7ad9686f169933 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 14 Apr 2013 15:34:01 -0400 Subject: [PATCH 129/204] hppfs: fix the leaks on close() we need to close the underlying procfs file and free ->private_data Signed-off-by: Al Viro --- fs/hppfs/hppfs.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/fs/hppfs/hppfs.c b/fs/hppfs/hppfs.c index 126d3c2e2dee..8ef57793c923 100644 --- a/fs/hppfs/hppfs.c +++ b/fs/hppfs/hppfs.c @@ -436,7 +436,6 @@ static int hppfs_open(struct inode *inode, struct file *file) path.mnt = inode->i_sb->s_fs_info; path.dentry = HPPFS_I(inode)->proc_dentry; - /* XXX This isn't closed anywhere */ data->proc_file = dentry_open(&path, file_mode(file->f_mode), cred); err = PTR_ERR(data->proc_file); if (IS_ERR(data->proc_file)) @@ -523,12 +522,23 @@ static loff_t hppfs_llseek(struct file *file, loff_t off, int where) return default_llseek(file, off, where); } +static int hppfs_release(struct inode *inode, struct file *file) +{ + struct hppfs_private *data = file->private_data; + struct file *proc_file = data->proc_file; + if (proc_file) + fput(proc_file); + kfree(data); + return 0; +} + static const struct file_operations hppfs_file_fops = { .owner = NULL, .llseek = hppfs_llseek, .read = hppfs_read, .write = hppfs_write, .open = hppfs_open, + .release = hppfs_release, }; struct hppfs_dirent { @@ -582,6 +592,7 @@ static const struct file_operations hppfs_dir_fops = { .open = hppfs_dir_open, .fsync = hppfs_fsync, .llseek = default_llseek, + .release = hppfs_release, }; static int hppfs_statfs(struct dentry *dentry, struct kstatfs *sf) From 79d0a3e399576c380787be5dd36be51de763af62 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 14 Apr 2013 15:35:44 -0400 Subject: [PATCH 130/204] hppfs: get rid of ->fsync() it has grown by accident - directories there do *not* use page cache, so there's nothing to write. Signed-off-by: Al Viro --- fs/hppfs/hppfs.c | 7 ------- 1 file changed, 7 deletions(-) diff --git a/fs/hppfs/hppfs.c b/fs/hppfs/hppfs.c index 8ef57793c923..cd3e38972c86 100644 --- a/fs/hppfs/hppfs.c +++ b/fs/hppfs/hppfs.c @@ -580,17 +580,10 @@ static int hppfs_readdir(struct file *file, void *ent, filldir_t filldir) return err; } -static int hppfs_fsync(struct file *file, loff_t start, loff_t end, - int datasync) -{ - return filemap_write_and_wait_range(file->f_mapping, start, end); -} - static const struct file_operations hppfs_dir_fops = { .owner = NULL, .readdir = hppfs_readdir, .open = hppfs_dir_open, - .fsync = hppfs_fsync, .llseek = default_llseek, .release = hppfs_release, }; From fca660beb875a0449bebcfe2d6696cadb4cc593c Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 14 Apr 2013 16:49:33 -0400 Subject: [PATCH 131/204] dmasound_core: saner arguments for sq_fsync() it is not (and it has never been) an ->fsync() instance... Signed-off-by: Al Viro --- sound/oss/dmasound/dmasound_core.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/sound/oss/dmasound/dmasound_core.c b/sound/oss/dmasound/dmasound_core.c index c918313c2206..bac43b5b6e95 100644 --- a/sound/oss/dmasound/dmasound_core.c +++ b/sound/oss/dmasound/dmasound_core.c @@ -835,7 +835,7 @@ static void sq_reset(void) shared_resources_initialised = 0 ; } -static int sq_fsync(struct file *filp, struct dentry *dentry) +static int sq_fsync(void) { int rc = 0; int timeout = 5; @@ -874,7 +874,7 @@ static int sq_release(struct inode *inode, struct file *file) if (file->f_mode & FMODE_WRITE) { if (write_sq.busy) - rc = sq_fsync(file, file->f_path.dentry); + rc = sq_fsync(); sq_reset_output() ; /* make sure dma is stopped and all is quiet */ write_sq_release_buffers(); @@ -1025,7 +1025,7 @@ static int sq_ioctl(struct file *file, u_int cmd, u_long arg) */ result = 0 ; if (file->f_mode & FMODE_WRITE) { - result = sq_fsync(file, file->f_path.dentry); + result = sq_fsync(); sq_reset_output() ; } /* if we are the shared resource owner then release them */ From e53cfda5d2c90a6dd763eb72034c775add729e40 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 14 Apr 2013 16:59:00 -0400 Subject: [PATCH 132/204] tomoyo_close_control: don't bother with return value Signed-off-by: Al Viro --- security/tomoyo/common.c | 5 +---- security/tomoyo/common.h | 2 +- security/tomoyo/securityfs_if.c | 5 ++--- 3 files changed, 4 insertions(+), 8 deletions(-) diff --git a/security/tomoyo/common.c b/security/tomoyo/common.c index f89a0333b813..283862aebdc8 100644 --- a/security/tomoyo/common.c +++ b/security/tomoyo/common.c @@ -2681,10 +2681,8 @@ ssize_t tomoyo_write_control(struct tomoyo_io_buffer *head, * tomoyo_close_control - close() for /sys/kernel/security/tomoyo/ interface. * * @head: Pointer to "struct tomoyo_io_buffer". - * - * Returns 0. */ -int tomoyo_close_control(struct tomoyo_io_buffer *head) +void tomoyo_close_control(struct tomoyo_io_buffer *head) { /* * If the file is /sys/kernel/security/tomoyo/query , decrement the @@ -2694,7 +2692,6 @@ int tomoyo_close_control(struct tomoyo_io_buffer *head) atomic_dec_and_test(&tomoyo_query_observers)) wake_up_all(&tomoyo_answer_wait); tomoyo_notify_gc(head, false); - return 0; } /** diff --git a/security/tomoyo/common.h b/security/tomoyo/common.h index d4f166bc3508..b897d4862016 100644 --- a/security/tomoyo/common.h +++ b/security/tomoyo/common.h @@ -958,7 +958,7 @@ const struct tomoyo_path_info *tomoyo_path_matches_group (const struct tomoyo_path_info *pathname, const struct tomoyo_group *group); int tomoyo_check_open_permission(struct tomoyo_domain_info *domain, struct path *path, const int flag); -int tomoyo_close_control(struct tomoyo_io_buffer *head); +void tomoyo_close_control(struct tomoyo_io_buffer *head); int tomoyo_env_perm(struct tomoyo_request_info *r, const char *env); int tomoyo_execute_permission(struct tomoyo_request_info *r, const struct tomoyo_path_info *filename); diff --git a/security/tomoyo/securityfs_if.c b/security/tomoyo/securityfs_if.c index fcf32783b66b..179a955b319d 100644 --- a/security/tomoyo/securityfs_if.c +++ b/security/tomoyo/securityfs_if.c @@ -143,14 +143,13 @@ static int tomoyo_open(struct inode *inode, struct file *file) /** * tomoyo_release - close() for /sys/kernel/security/tomoyo/ interface. * - * @inode: Pointer to "struct inode". * @file: Pointer to "struct file". * - * Returns 0 on success, negative value otherwise. */ static int tomoyo_release(struct inode *inode, struct file *file) { - return tomoyo_close_control(file->private_data); + tomoyo_close_control(file->private_data); + return 0; } /** From 0e2bcaae836e535236244bfc900626ee541eb7bb Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 14 Apr 2013 17:22:17 -0400 Subject: [PATCH 133/204] sock_close() couldn't have been called with NULL inode since at least 2.1.early ... if not since 0.99 or so. Signed-off-by: Al Viro --- net/socket.c | 9 --------- 1 file changed, 9 deletions(-) diff --git a/net/socket.c b/net/socket.c index 88f759adf3af..9663df63e3d1 100644 --- a/net/socket.c +++ b/net/socket.c @@ -1173,15 +1173,6 @@ static int sock_mmap(struct file *file, struct vm_area_struct *vma) static int sock_close(struct inode *inode, struct file *filp) { - /* - * It was possible the inode is NULL we were - * closing an unfinished socket. - */ - - if (!inode) { - printk(KERN_DEBUG "sock_close: NULL inode\n"); - return 0; - } sock_release(SOCKET_I(inode)); return 0; } From f269cad7f4bb19d4146fc1decc51f3da88257ffc Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 14 Apr 2013 20:01:50 -0400 Subject: [PATCH 134/204] fanotify: don't wank with FASYNC on ->release() ... it's done already by __fput() Signed-off-by: Al Viro --- fs/notify/inotify/inotify_user.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/fs/notify/inotify/inotify_user.c b/fs/notify/inotify/inotify_user.c index e0f7c1241a6a..1db6d886cbf2 100644 --- a/fs/notify/inotify/inotify_user.c +++ b/fs/notify/inotify/inotify_user.c @@ -287,9 +287,6 @@ static int inotify_release(struct inode *ignored, struct file *file) pr_debug("%s: group=%p\n", __func__, group); - if (file->f_flags & FASYNC) - fsnotify_fasync(-1, file, 0); - /* free this group, matching get was inotify_init->fsnotify_obtain_group */ fsnotify_destroy_group(group); From 3dce1891f3e4c334046b32c355b9e5cef50c18d9 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 14 Apr 2013 21:23:06 -0400 Subject: [PATCH 135/204] yurex: don't wank with fasync on ->release()... Signed-off-by: Al Viro --- drivers/usb/misc/yurex.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/usb/misc/yurex.c b/drivers/usb/misc/yurex.c index 42ad2e6d86c4..b6ab515bfc6c 100644 --- a/drivers/usb/misc/yurex.c +++ b/drivers/usb/misc/yurex.c @@ -407,8 +407,6 @@ static int yurex_release(struct inode *inode, struct file *file) if (dev == NULL) return -ENODEV; - yurex_fasync(-1, file, 0); - /* decrement the count on our device */ kref_put(&dev->kref, yurex_delete); return 0; From 858feacd2b6790c49ba9c7521f0c7ac3a5a9cb8e Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 14 Apr 2013 22:39:37 -0400 Subject: [PATCH 136/204] lpfc: fix races for miscdevice open vs. rmmod mind you, I'm not sure WTF would anybody _need_ that miscdevice at all - no IO is possible for it, opening it only pins the module down and is seriously racy, at that. Signed-off-by: Al Viro --- drivers/scsi/lpfc/lpfc_init.c | 33 +-------------------------------- 1 file changed, 1 insertion(+), 32 deletions(-) diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c index 314b4f61b9e3..8b9c191a7019 100644 --- a/drivers/scsi/lpfc/lpfc_init.c +++ b/drivers/scsi/lpfc/lpfc_init.c @@ -10368,36 +10368,6 @@ lpfc_io_resume(struct pci_dev *pdev) return; } -/** - * lpfc_mgmt_open - method called when 'lpfcmgmt' is opened from userspace - * @inode: pointer to the inode representing the lpfcmgmt device - * @filep: pointer to the file representing the open lpfcmgmt device - * - * This routine puts a reference count on the lpfc module whenever the - * character device is opened - **/ -static int -lpfc_mgmt_open(struct inode *inode, struct file *filep) -{ - try_module_get(THIS_MODULE); - return 0; -} - -/** - * lpfc_mgmt_release - method called when 'lpfcmgmt' is closed in userspace - * @inode: pointer to the inode representing the lpfcmgmt device - * @filep: pointer to the file representing the open lpfcmgmt device - * - * This routine removes a reference count from the lpfc module when the - * character device is closed - **/ -static int -lpfc_mgmt_release(struct inode *inode, struct file *filep) -{ - module_put(THIS_MODULE); - return 0; -} - static struct pci_device_id lpfc_id_table[] = { {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER, PCI_ANY_ID, PCI_ANY_ID, }, @@ -10515,8 +10485,7 @@ static struct pci_driver lpfc_driver = { }; static const struct file_operations lpfc_mgmt_fop = { - .open = lpfc_mgmt_open, - .release = lpfc_mgmt_release, + .owner = THIS_MODULE, }; static struct miscdevice lpfc_mgmt_dev = { From f0689f05371c6a7a33b4a4b85ecb6d1c79e2a371 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 15 Apr 2013 10:28:20 -0400 Subject: [PATCH 137/204] mptctl: don't wank with fasync in ->release() Signed-off-by: Al Viro --- drivers/message/fusion/mptctl.c | 8 -------- 1 file changed, 8 deletions(-) diff --git a/drivers/message/fusion/mptctl.c b/drivers/message/fusion/mptctl.c index b383b6961e59..dcc8385adeb3 100644 --- a/drivers/message/fusion/mptctl.c +++ b/drivers/message/fusion/mptctl.c @@ -596,13 +596,6 @@ mptctl_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply) return 1; } -static int -mptctl_release(struct inode *inode, struct file *filep) -{ - fasync_helper(-1, filep, 0, &async_queue); - return 0; -} - static int mptctl_fasync(int fd, struct file *filep, int mode) { @@ -2822,7 +2815,6 @@ static const struct file_operations mptctl_fops = { .llseek = no_llseek, .fasync = mptctl_fasync, .unlocked_ioctl = mptctl_ioctl, - .release = mptctl_release, #ifdef CONFIG_COMPAT .compat_ioctl = compat_mpctl_ioctl, #endif From e84cb41eb008fb42b357c55329c345f9a0375237 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 15 Apr 2013 10:29:11 -0400 Subject: [PATCH 138/204] pmcraid: don't wank with fasync in ->release() Signed-off-by: Al Viro --- drivers/scsi/pmcraid.c | 14 -------------- 1 file changed, 14 deletions(-) diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c index b46f5e906837..8e1b73775065 100644 --- a/drivers/scsi/pmcraid.c +++ b/drivers/scsi/pmcraid.c @@ -3598,19 +3598,6 @@ static int pmcraid_chr_open(struct inode *inode, struct file *filep) return 0; } -/** - * pmcraid_release - char node "release" entry point - */ -static int pmcraid_chr_release(struct inode *inode, struct file *filep) -{ - struct pmcraid_instance *pinstance = filep->private_data; - - filep->private_data = NULL; - fasync_helper(-1, filep, 0, &pinstance->aen_queue); - - return 0; -} - /** * pmcraid_fasync - Async notifier registration from applications * @@ -4167,7 +4154,6 @@ static long pmcraid_chr_ioctl( static const struct file_operations pmcraid_fops = { .owner = THIS_MODULE, .open = pmcraid_chr_open, - .release = pmcraid_chr_release, .fasync = pmcraid_chr_fasync, .unlocked_ioctl = pmcraid_chr_ioctl, #ifdef CONFIG_COMPAT From 8e0bcc722289275d5586a08b0d33b737bac2836e Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 15 Apr 2013 13:29:15 -0400 Subject: [PATCH 139/204] fix a leak in /proc/schedstats Signed-off-by: Al Viro --- kernel/sched/stats.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) diff --git a/kernel/sched/stats.c b/kernel/sched/stats.c index e036eda1a9c9..da98af347e8b 100644 --- a/kernel/sched/stats.c +++ b/kernel/sched/stats.c @@ -130,16 +130,11 @@ static int schedstat_open(struct inode *inode, struct file *file) return seq_open(file, &schedstat_sops); } -static int schedstat_release(struct inode *inode, struct file *file) -{ - return 0; -}; - static const struct file_operations proc_schedstat_operations = { .open = schedstat_open, .read = seq_read, .llseek = seq_lseek, - .release = schedstat_release, + .release = seq_release, }; static int __init proc_schedstat_init(void) From 96625a74c7968fdd02476d01579ac826799e4f08 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 15 Apr 2013 13:30:33 -0400 Subject: [PATCH 140/204] mpt2sas: don't wank with fasync on ->release() Signed-off-by: Al Viro --- drivers/scsi/mpt2sas/mpt2sas_ctl.c | 14 -------------- 1 file changed, 14 deletions(-) diff --git a/drivers/scsi/mpt2sas/mpt2sas_ctl.c b/drivers/scsi/mpt2sas/mpt2sas_ctl.c index 08685c4cf231..eec052c2670a 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_ctl.c +++ b/drivers/scsi/mpt2sas/mpt2sas_ctl.c @@ -504,19 +504,6 @@ _ctl_fasync(int fd, struct file *filep, int mode) return fasync_helper(fd, filep, mode, &async_queue); } -/** - * _ctl_release - - * @inode - - * @filep - - * - * Called when application releases the fasyn callback handler. - */ -static int -_ctl_release(struct inode *inode, struct file *filep) -{ - return fasync_helper(-1, filep, 0, &async_queue); -} - /** * _ctl_poll - * @file - @@ -3027,7 +3014,6 @@ struct device_attribute *mpt2sas_dev_attrs[] = { static const struct file_operations ctl_fops = { .owner = THIS_MODULE, .unlocked_ioctl = _ctl_ioctl, - .release = _ctl_release, .poll = _ctl_poll, .fasync = _ctl_fasync, #ifdef CONFIG_COMPAT From 70ab27ddb7ccb8d42a4e79730be5bcd7939851b6 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 15 Apr 2013 13:31:14 -0400 Subject: [PATCH 141/204] mpt3sas: don't wank with fasync on ->release() Signed-off-by: Al Viro --- drivers/scsi/mpt3sas/mpt3sas_ctl.c | 14 -------------- 1 file changed, 14 deletions(-) diff --git a/drivers/scsi/mpt3sas/mpt3sas_ctl.c b/drivers/scsi/mpt3sas/mpt3sas_ctl.c index 054d5231c974..0b402b6f2d26 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_ctl.c +++ b/drivers/scsi/mpt3sas/mpt3sas_ctl.c @@ -502,19 +502,6 @@ _ctl_fasync(int fd, struct file *filep, int mode) return fasync_helper(fd, filep, mode, &async_queue); } -/** - * _ctl_release - - * @inode - - * @filep - - * - * Called when application releases the fasyn callback handler. - */ -static int -_ctl_release(struct inode *inode, struct file *filep) -{ - return fasync_helper(-1, filep, 0, &async_queue); -} - /** * _ctl_poll - * @file - @@ -3233,7 +3220,6 @@ struct device_attribute *mpt3sas_dev_attrs[] = { static const struct file_operations ctl_fops = { .owner = THIS_MODULE, .unlocked_ioctl = _ctl_ioctl, - .release = _ctl_release, .poll = _ctl_poll, .fasync = _ctl_fasync, #ifdef CONFIG_COMPAT From 25643165c3e35cae633afe8926d49c4e558e63d2 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 15 Apr 2013 13:34:22 -0400 Subject: [PATCH 142/204] lis3lv02d: don't wank with fasync() on ->release() Signed-off-by: Al Viro --- drivers/misc/lis3lv02d/lis3lv02d.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/misc/lis3lv02d/lis3lv02d.c b/drivers/misc/lis3lv02d/lis3lv02d.c index 4a87e5c0a320..4cd4a3d2a76a 100644 --- a/drivers/misc/lis3lv02d/lis3lv02d.c +++ b/drivers/misc/lis3lv02d/lis3lv02d.c @@ -593,7 +593,6 @@ static int lis3lv02d_misc_release(struct inode *inode, struct file *file) struct lis3lv02d *lis3 = container_of(file->private_data, struct lis3lv02d, miscdev); - fasync_helper(-1, file, 0, &lis3->async_queue); clear_bit(0, &lis3->misc_opened); /* release the device */ if (lis3->pm_dev) pm_runtime_put(lis3->pm_dev); From 7caf2184f264f70f76d88444e4199945041a2aca Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 15 Apr 2013 13:56:11 -0400 Subject: [PATCH 143/204] dvb_net: don't mess with ->f_op in ->release() Signed-off-by: Al Viro --- drivers/media/dvb-core/dvb_net.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/drivers/media/dvb-core/dvb_net.c b/drivers/media/dvb-core/dvb_net.c index 44225b186f6d..59ba60659a3e 100644 --- a/drivers/media/dvb-core/dvb_net.c +++ b/drivers/media/dvb-core/dvb_net.c @@ -1479,11 +1479,8 @@ static int dvb_net_close(struct inode *inode, struct file *file) dvb_generic_release(inode, file); - if(dvbdev->users == 1 && dvbnet->exit == 1) { - fops_put(file->f_op); - file->f_op = NULL; + if(dvbdev->users == 1 && dvbnet->exit == 1) wake_up(&dvbdev->wait_queue); - } return 0; } From 03feee373f05d5c500dd6198015de83005df902c Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 15 Apr 2013 13:58:21 -0400 Subject: [PATCH 144/204] dvb_frontend: don't mess with ->f_op in ->release() Signed-off-by: Al Viro --- drivers/media/dvb-core/dvb_frontend.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/drivers/media/dvb-core/dvb_frontend.c b/drivers/media/dvb-core/dvb_frontend.c index 6e50a7581568..73fc7fe00751 100644 --- a/drivers/media/dvb-core/dvb_frontend.c +++ b/drivers/media/dvb-core/dvb_frontend.c @@ -2492,11 +2492,8 @@ static int dvb_frontend_release(struct inode *inode, struct file *file) if (dvbdev->users == -1) { wake_up(&fepriv->wait_queue); - if (fepriv->exit != DVB_FE_NO_EXIT) { - fops_put(file->f_op); - file->f_op = NULL; + if (fepriv->exit != DVB_FE_NO_EXIT) wake_up(&dvbdev->wait_queue); - } if (fe->ops.ts_bus_ctrl) fe->ops.ts_bus_ctrl(fe, 0); } From c08c464d6f4136d9e48ffa23c0bcd93442343b2a Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 15 Apr 2013 16:31:13 -0400 Subject: [PATCH 145/204] mISDN: fix the races with timers going off just as they are deleted timer callback in timerdev.c both accesses struct mISDNtimer it's called for *and* moves it to dev->expired. We need del_timer_sync(), or we risk kfree() freeing it right under dev_expire_timer() *and* dev->expired getting corrupted. Signed-off-by: Al Viro --- drivers/isdn/mISDN/timerdev.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) diff --git a/drivers/isdn/mISDN/timerdev.c b/drivers/isdn/mISDN/timerdev.c index 1094667d8f31..5a1a5cadc766 100644 --- a/drivers/isdn/mISDN/timerdev.c +++ b/drivers/isdn/mISDN/timerdev.c @@ -72,14 +72,24 @@ static int mISDN_close(struct inode *ino, struct file *filep) { struct mISDNtimerdev *dev = filep->private_data; + struct list_head *list = &dev->pending; struct mISDNtimer *timer, *next; if (*debug & DEBUG_TIMER) printk(KERN_DEBUG "%s(%p,%p)\n", __func__, ino, filep); - list_for_each_entry_safe(timer, next, &dev->pending, list) { - del_timer(&timer->tl); + + spin_lock_irq(&dev->lock); + while (!list_empty(list)) { + timer = list_first_entry(list, struct mISDNtimer, list); + spin_unlock_irq(&dev->lock); + del_timer_sync(&timer->tl); + spin_lock_irq(&dev->lock); + /* it might have been moved to ->expired */ + list_del(&timer->list); kfree(timer); } + spin_unlock_irq(&dev->lock); + list_for_each_entry_safe(timer, next, &dev->expired, list) { kfree(timer); } From 1b1089561ce596a4032ba1039365090304db1cfd Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 15 Apr 2013 16:55:41 -0400 Subject: [PATCH 146/204] mISDN: fix races between misdn_del_timer() and timer callback mark the victim with negative ->id if misdn_del_timer() finds it on the list, have timer callback *not* move ones so marked to dev->expired Signed-off-by: Al Viro --- drivers/isdn/mISDN/timerdev.c | 22 +++++++++------------- 1 file changed, 9 insertions(+), 13 deletions(-) diff --git a/drivers/isdn/mISDN/timerdev.c b/drivers/isdn/mISDN/timerdev.c index 5a1a5cadc766..c00546f830db 100644 --- a/drivers/isdn/mISDN/timerdev.c +++ b/drivers/isdn/mISDN/timerdev.c @@ -163,7 +163,8 @@ dev_expire_timer(unsigned long data) u_long flags; spin_lock_irqsave(&timer->dev->lock, flags); - list_move_tail(&timer->list, &timer->dev->expired); + if (timer->id >= 0) + list_move_tail(&timer->list, &timer->dev->expired); spin_unlock_irqrestore(&timer->dev->lock, flags); wake_up_interruptible(&timer->dev->wait); } @@ -203,26 +204,21 @@ misdn_add_timer(struct mISDNtimerdev *dev, int timeout) static int misdn_del_timer(struct mISDNtimerdev *dev, int id) { - u_long flags; struct mISDNtimer *timer; - int ret = 0; - spin_lock_irqsave(&dev->lock, flags); + spin_lock_irq(&dev->lock); list_for_each_entry(timer, &dev->pending, list) { if (timer->id == id) { list_del_init(&timer->list); - /* RED-PEN AK: race -- timer can be still running on - * other CPU. Needs reference count I think - */ - del_timer(&timer->tl); - ret = timer->id; + timer->id = -1; + spin_unlock_irq(&dev->lock); + del_timer_sync(&timer->tl); kfree(timer); - goto unlock; + return id; } } -unlock: - spin_unlock_irqrestore(&dev->lock, flags); - return ret; + spin_unlock_irq(&dev->lock); + return 0; } static long From 1678ec00a632f8b9204e28e5c506128881171604 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 15 Apr 2013 17:04:04 -0400 Subject: [PATCH 147/204] mISDN: fix misdn_add_timer()/misdn_del_timer() race do add_timer() *before* unlocking dev->lock, or unpleasant things can happen if misdn_del_timer() on another CPU finds the sucker, calls del_timer_sync() (which does nothing, since we hadn't started the timer yet) and frees it, just as we get around to add_timer()... Signed-off-by: Al Viro --- drivers/isdn/mISDN/timerdev.c | 14 +++++--------- 1 file changed, 5 insertions(+), 9 deletions(-) diff --git a/drivers/isdn/mISDN/timerdev.c b/drivers/isdn/mISDN/timerdev.c index c00546f830db..ddb8adcd5fbb 100644 --- a/drivers/isdn/mISDN/timerdev.c +++ b/drivers/isdn/mISDN/timerdev.c @@ -173,7 +173,6 @@ static int misdn_add_timer(struct mISDNtimerdev *dev, int timeout) { int id; - u_long flags; struct mISDNtimer *timer; if (!timeout) { @@ -184,19 +183,16 @@ misdn_add_timer(struct mISDNtimerdev *dev, int timeout) timer = kzalloc(sizeof(struct mISDNtimer), GFP_KERNEL); if (!timer) return -ENOMEM; - spin_lock_irqsave(&dev->lock, flags); - timer->id = dev->next_id++; + timer->dev = dev; + setup_timer(&timer->tl, dev_expire_timer, (long)timer); + spin_lock_irq(&dev->lock); + id = timer->id = dev->next_id++; if (dev->next_id < 0) dev->next_id = 1; list_add_tail(&timer->list, &dev->pending); - spin_unlock_irqrestore(&dev->lock, flags); - timer->dev = dev; - timer->tl.data = (long)timer; - timer->tl.function = dev_expire_timer; - init_timer(&timer->tl); timer->tl.expires = jiffies + ((HZ * (u_long)timeout) / 1000); add_timer(&timer->tl); - id = timer->id; + spin_unlock_irq(&dev->lock); } return id; } From ebb06be16bc9a1e66a010ca50c75c5128bafb4b1 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 15 Apr 2013 17:18:17 -0400 Subject: [PATCH 148/204] mISDN: fix mISDN_read()/mISDN_read() race Signed-off-by: Al Viro --- drivers/isdn/mISDN/timerdev.c | 23 ++++++++++++++--------- 1 file changed, 14 insertions(+), 9 deletions(-) diff --git a/drivers/isdn/mISDN/timerdev.c b/drivers/isdn/mISDN/timerdev.c index ddb8adcd5fbb..da2aa376a3a3 100644 --- a/drivers/isdn/mISDN/timerdev.c +++ b/drivers/isdn/mISDN/timerdev.c @@ -102,36 +102,41 @@ static ssize_t mISDN_read(struct file *filep, char __user *buf, size_t count, loff_t *off) { struct mISDNtimerdev *dev = filep->private_data; + struct list_head *list = &dev->expired; struct mISDNtimer *timer; - u_long flags; int ret = 0; if (*debug & DEBUG_TIMER) printk(KERN_DEBUG "%s(%p, %p, %d, %p)\n", __func__, filep, buf, (int)count, off); - if (list_empty(&dev->expired) && (dev->work == 0)) { + if (count < sizeof(int)) + return -ENOSPC; + + spin_lock_irq(&dev->lock); + while (list_empty(list) && (dev->work == 0)) { + spin_unlock_irq(&dev->lock); if (filep->f_flags & O_NONBLOCK) return -EAGAIN; wait_event_interruptible(dev->wait, (dev->work || - !list_empty(&dev->expired))); + !list_empty(list))); if (signal_pending(current)) return -ERESTARTSYS; + spin_lock_irq(&dev->lock); } - if (count < sizeof(int)) - return -ENOSPC; if (dev->work) dev->work = 0; - if (!list_empty(&dev->expired)) { - spin_lock_irqsave(&dev->lock, flags); - timer = (struct mISDNtimer *)dev->expired.next; + if (!list_empty(list)) { + timer = list_first_entry(list, struct mISDNtimer, list); list_del(&timer->list); - spin_unlock_irqrestore(&dev->lock, flags); + spin_unlock_irq(&dev->lock); if (put_user(timer->id, (int __user *)buf)) ret = -EFAULT; else ret = sizeof(int); kfree(timer); + } else { + spin_unlock_irq(&dev->lock); } return ret; } From 89b107adce32a52920b36787b60c8f24c986c526 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 15 Apr 2013 17:27:11 -0400 Subject: [PATCH 149/204] mISDN: grabbing/dropping reference to THIS_MODULE in open/release is racy ... when you have no ->owner set. Signed-off-by: Al Viro --- drivers/isdn/mISDN/timerdev.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/isdn/mISDN/timerdev.c b/drivers/isdn/mISDN/timerdev.c index da2aa376a3a3..9438d7ec3308 100644 --- a/drivers/isdn/mISDN/timerdev.c +++ b/drivers/isdn/mISDN/timerdev.c @@ -64,7 +64,6 @@ mISDN_open(struct inode *ino, struct file *filep) dev->work = 0; init_waitqueue_head(&dev->wait); filep->private_data = dev; - __module_get(THIS_MODULE); return nonseekable_open(ino, filep); } @@ -94,7 +93,6 @@ mISDN_close(struct inode *ino, struct file *filep) kfree(timer); } kfree(dev); - module_put(THIS_MODULE); return 0; } @@ -269,6 +267,7 @@ mISDN_ioctl(struct file *filep, unsigned int cmd, unsigned long arg) } static const struct file_operations mISDN_fops = { + .owner = THIS_MODULE, .read = mISDN_read, .poll = mISDN_poll, .unlocked_ioctl = mISDN_ioctl, From 14b872f02ebd6fd451744f71a3d44b0e57e423ca Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 19 Apr 2013 06:43:33 -0400 Subject: [PATCH 150/204] xt_hashlimit: allocate a copy of name explicitly, don't rely on procfs guts Signed-off-by: Al Viro --- net/netfilter/xt_hashlimit.c | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) diff --git a/net/netfilter/xt_hashlimit.c b/net/netfilter/xt_hashlimit.c index ebfad037b11f..905c328ed5a8 100644 --- a/net/netfilter/xt_hashlimit.c +++ b/net/netfilter/xt_hashlimit.c @@ -107,6 +107,7 @@ struct xt_hashlimit_htable { /* seq_file stuff */ struct proc_dir_entry *pde; + const char *name; struct net *net; struct hlist_head hash[0]; /* hashtable itself */ @@ -253,6 +254,11 @@ static int htable_create(struct net *net, struct xt_hashlimit_mtinfo1 *minfo, hinfo->count = 0; hinfo->family = family; hinfo->rnd_initialized = false; + hinfo->name = kstrdup(minfo->name, GFP_KERNEL); + if (!hinfo->name) { + vfree(hinfo); + return -ENOMEM; + } spin_lock_init(&hinfo->lock); hinfo->pde = proc_create_data(minfo->name, 0, @@ -260,6 +266,7 @@ static int htable_create(struct net *net, struct xt_hashlimit_mtinfo1 *minfo, hashlimit_net->ipt_hashlimit : hashlimit_net->ip6t_hashlimit, &dl_file_ops, hinfo); if (hinfo->pde == NULL) { + kfree(hinfo->name); vfree(hinfo); return -ENOMEM; } @@ -330,9 +337,10 @@ static void htable_destroy(struct xt_hashlimit_htable *hinfo) parent = hashlimit_net->ip6t_hashlimit; if(parent != NULL) - remove_proc_entry(hinfo->pde->name, parent); + remove_proc_entry(hinfo->name, parent); htable_selective_cleanup(hinfo, select_all); + kfree(hinfo->name); vfree(hinfo); } @@ -344,7 +352,7 @@ static struct xt_hashlimit_htable *htable_find_get(struct net *net, struct xt_hashlimit_htable *hinfo; hlist_for_each_entry(hinfo, &hashlimit_net->htables, node) { - if (!strcmp(name, hinfo->pde->name) && + if (!strcmp(name, hinfo->name) && hinfo->family == family) { hinfo->use++; return hinfo; @@ -887,7 +895,7 @@ static void __net_exit hashlimit_proc_net_exit(struct net *net) pde = hashlimit_net->ip6t_hashlimit; hlist_for_each_entry(hinfo, &hashlimit_net->htables, node) - remove_proc_entry(hinfo->pde->name, pde); + remove_proc_entry(hinfo->name, pde); hashlimit_net->ipt_hashlimit = NULL; hashlimit_net->ip6t_hashlimit = NULL; From d0206fb55540cfdc3a2634ffdafc6f1d86cf1f15 Mon Sep 17 00:00:00 2001 From: David Howells Date: Tue, 9 Apr 2013 21:11:47 +0100 Subject: [PATCH 151/204] procfs: Mark create_proc_read_entry deprecated Mark create_proc_read_entry deprecated. proc_create[_data]() should be used instead. Signed-off-by: David Howells Signed-off-by: Al Viro --- include/linux/proc_fs.h | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h index 2781e498f709..8175b49396a6 100644 --- a/include/linux/proc_fs.h +++ b/include/linux/proc_fs.h @@ -155,7 +155,8 @@ static inline struct proc_dir_entry *proc_create(const char *name, umode_t mode, return proc_create_data(name, mode, parent, proc_fops, NULL); } -extern struct proc_dir_entry *create_proc_read_entry(const char *name, +extern __deprecated +struct proc_dir_entry *create_proc_read_entry(const char *name, umode_t mode, struct proc_dir_entry *base, read_proc_t *read_proc, void *data); @@ -191,7 +192,8 @@ static inline struct proc_dir_entry *proc_mkdir(const char *name, static inline struct proc_dir_entry *proc_mkdir_mode(const char *name, umode_t mode, struct proc_dir_entry *parent) { return NULL; } -static inline struct proc_dir_entry *create_proc_read_entry(const char *name, +static inline __deprecated +struct proc_dir_entry *create_proc_read_entry(const char *name, umode_t mode, struct proc_dir_entry *base, read_proc_t *read_proc, void * data) { return NULL; } From 0541f9d08acfcf68b589e93cc26c3117d0b594c4 Mon Sep 17 00:00:00 2001 From: David Howells Date: Mon, 8 Apr 2013 15:17:33 +0100 Subject: [PATCH 152/204] rtl8192u: Don't use create_proc_read_entry() Don't use create_proc_read_entry() as that is deprecated, but rather use proc_create_data() and seq_file instead. Whilst we're at it, reduce the number of show functions where we can share them. Note: proc_get_stats_ap() should probably use seq_file iteration rather than list_for_each_entry(). Further note: There appears to be a lot of locking missing in this file to defend against concurrent access by the driver doing normal operations. Notably, ieee->network_list traversal and RWCAM/RCAMO command/response access. Further, do any of the registers read have side effects upon reading? Signed-off-by: David Howells cc: Jerry Chuang cc: Mauro Carvalho Chehab cc: Greg Kroah-Hartman cc: linux-wireless@vger.kernel.org cc: devel@driverdev.osuosl.org Signed-off-by: Al Viro --- drivers/staging/rtl8192u/r8192U_core.c | 222 +++++++++++-------------- 1 file changed, 95 insertions(+), 127 deletions(-) diff --git a/drivers/staging/rtl8192u/r8192U_core.c b/drivers/staging/rtl8192u/r8192U_core.c index f7de2f6d49a5..433c3df95de0 100644 --- a/drivers/staging/rtl8192u/r8192U_core.c +++ b/drivers/staging/rtl8192u/r8192U_core.c @@ -71,6 +71,8 @@ double __extendsfdf2(float a) {return a;} //#include "r8192xU_phyreg.h" #include #include +#include +#include // FIXME: check if 2.6.7 is ok #ifdef CONFIG_RTL8192_PM @@ -472,103 +474,73 @@ void watch_dog_timer_callback(unsigned long data); static struct proc_dir_entry *rtl8192_proc; -static int proc_get_stats_ap(char *page, char **start, off_t offset, int count, - int *eof, void *data) +static int proc_get_stats_ap(struct seq_file *m, void *v) { - struct net_device *dev = data; + struct net_device *dev = m->private; struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); struct ieee80211_device *ieee = priv->ieee80211; struct ieee80211_network *target; - int len = 0; - list_for_each_entry(target, &ieee->network_list, list) { - - len += snprintf(page + len, count - len, "%s ", target->ssid); - + const char *wpa = "non_WPA"; if (target->wpa_ie_len > 0 || target->rsn_ie_len > 0) - len += snprintf(page + len, count - len, "WPA\n"); - else - len += snprintf(page + len, count - len, "non_WPA\n"); + wpa = "WPA"; + + seq_printf(m, "%s %s\n", target->ssid, wpa); } - *eof = 1; - return len; + return 0; } -static int proc_get_registers(char *page, char **start, - off_t offset, int count, - int *eof, void *data) +static int proc_get_registers(struct seq_file *m, void *v) { - struct net_device *dev = data; -// struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); + struct net_device *dev = m->private; + int i,n, max = 0xff; - int len = 0; - int i,n; - - int max=0xff; - - /* This dump the current register page */ - len += snprintf(page + len, count - len, - "\n####################page 0##################\n "); + seq_puts(m, "\n####################page 0##################\n "); for (n=0;n<=max;) { //printk( "\nD: %2x> ", n); - len += snprintf(page + len, count - len, - "\nD: %2x > ",n); + seq_printf(m, "\nD: %2x > ",n); for (i=0;i<16 && n<=max;i++,n++) - len += snprintf(page + len, count - len, - "%2x ",read_nic_byte(dev,0x000|n)); + seq_printf(m, "%2x ",read_nic_byte(dev,0x000|n)); // printk("%2x ",read_nic_byte(dev,n)); } - len += snprintf(page + len, count - len, - "\n####################page 1##################\n "); + + seq_puts(m, "\n####################page 1##################\n "); for (n=0;n<=max;) { //printk( "\nD: %2x> ", n); - len += snprintf(page + len, count - len, - "\nD: %2x > ",n); + seq_printf(m, "\nD: %2x > ",n); for (i=0;i<16 && n<=max;i++,n++) - len += snprintf(page + len, count - len, - "%2x ",read_nic_byte(dev,0x100|n)); + seq_printf(m, "%2x ",read_nic_byte(dev,0x100|n)); // printk("%2x ",read_nic_byte(dev,n)); } - len += snprintf(page + len, count - len, - "\n####################page 3##################\n "); + + seq_puts(m, "\n####################page 3##################\n "); for (n=0;n<=max;) { //printk( "\nD: %2x> ", n); - len += snprintf(page + len, count - len, - "\nD: %2x > ",n); + seq_printf(m, "\nD: %2x > ",n); for(i=0;i<16 && n<=max;i++,n++) - len += snprintf(page + len, count - len, - "%2x ",read_nic_byte(dev,0x300|n)); + seq_printf(m, "%2x ",read_nic_byte(dev,0x300|n)); // printk("%2x ",read_nic_byte(dev,n)); } - len += snprintf(page + len, count - len,"\n"); - *eof = 1; - return len; + seq_putc(m, '\n'); + return 0; } - - - - -static int proc_get_stats_tx(char *page, char **start, - off_t offset, int count, - int *eof, void *data) +static int proc_get_stats_tx(struct seq_file *m, void *v) { - struct net_device *dev = data; + struct net_device *dev = m->private; struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); - int len = 0; - - len += snprintf(page + len, count - len, + seq_printf(m, "TX VI priority ok int: %lu\n" "TX VI priority error int: %lu\n" "TX VO priority ok int: %lu\n" @@ -629,22 +601,15 @@ static int proc_get_stats_tx(char *page, char **start, // priv->stats.txbeaconerr ); - *eof = 1; - return len; + return 0; } - - -static int proc_get_stats_rx(char *page, char **start, - off_t offset, int count, - int *eof, void *data) +static int proc_get_stats_rx(struct seq_file *m, void *v) { - struct net_device *dev = data; + struct net_device *dev = m->private; struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); - int len = 0; - - len += snprintf(page + len, count - len, + seq_printf(m, "RX packets: %lu\n" "RX urb status error: %lu\n" "RX invalid urb error: %lu\n", @@ -652,9 +617,9 @@ static int proc_get_stats_rx(char *page, char **start, priv->stats.rxstaterr, priv->stats.rxurberr); - *eof = 1; - return len; + return 0; } + void rtl8192_proc_module_init(void) { RT_TRACE(COMP_INIT, "Initializing proc filesystem"); @@ -667,74 +632,77 @@ void rtl8192_proc_module_remove(void) remove_proc_entry(RTL819xU_MODULE_NAME, init_net.proc_net); } +/* + * seq_file wrappers for procfile show routines. + */ +static int rtl8192_proc_open(struct inode *inode, struct file *file) +{ + struct net_device *dev = PDE(inode)->parent->data; + int (*show)(struct seq_file *, void *) = PDE_DATA(inode); + + return single_open(file, show, dev); +} + +static const struct file_operations rtl8192_proc_fops = { + .open = rtl8192_proc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + +/* + * Table of proc files we need to create. + */ +struct rtl8192_proc_file { + char name[12]; + int (*show)(struct seq_file *, void *); +}; + +static const struct rtl8192_proc_file rtl8192_proc_files[] = { + { "stats-rx", &proc_get_stats_rx }, + { "stats-tx", &proc_get_stats_tx }, + { "stats-ap", &proc_get_stats_ap }, + { "registers", &proc_get_registers }, + { "" } +}; + +void rtl8192_proc_init_one(struct net_device *dev) +{ + const struct rtl8192_proc_file *f; + struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); + + if (rtl8192_proc) { + priv->dir_dev = proc_mkdir(dev->name, rtl8192_proc); + if (!priv->dir_dev) { + RT_TRACE(COMP_ERR, "Unable to initialize /proc/net/rtl8192/%s\n", + dev->name); + return; + } + priv->dir_dev->data = dev; + + for (f = rtl8192_proc_files; f->name[0]; f++) { + if (!proc_create_data(f->name, S_IFREG | S_IRUGO, + priv->dir_dev, + rtl8192_proc_fops, f->show)) { + RT_TRACE(COMP_ERR, "Unable to initialize " + "/proc/net/rtl8192/%s/%s\n", + dev->name, f->name); + return; + } + } + } +} void rtl8192_proc_remove_one(struct net_device *dev) { struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); - if (priv->dir_dev) { - // remove_proc_entry("stats-hw", priv->dir_dev); - remove_proc_entry("stats-tx", priv->dir_dev); - remove_proc_entry("stats-rx", priv->dir_dev); - // remove_proc_entry("stats-ieee", priv->dir_dev); - remove_proc_entry("stats-ap", priv->dir_dev); - remove_proc_entry("registers", priv->dir_dev); - // remove_proc_entry("cck-registers",priv->dir_dev); - // remove_proc_entry("ofdm-registers",priv->dir_dev); - //remove_proc_entry(dev->name, rtl8192_proc); - remove_proc_entry("wlan0", rtl8192_proc); + remove_proc_subtree(dev->name, rtl8192_proc); priv->dir_dev = NULL; } } - -void rtl8192_proc_init_one(struct net_device *dev) -{ - struct proc_dir_entry *e; - struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); - priv->dir_dev = proc_mkdir(dev->name, rtl8192_proc); - if (!priv->dir_dev) { - RT_TRACE(COMP_ERR, "Unable to initialize /proc/net/rtl8192/%s\n", - dev->name); - return; - } - e = create_proc_read_entry("stats-rx", S_IFREG | S_IRUGO, - priv->dir_dev, proc_get_stats_rx, dev); - - if (!e) { - RT_TRACE(COMP_ERR,"Unable to initialize " - "/proc/net/rtl8192/%s/stats-rx\n", - dev->name); - } - - - e = create_proc_read_entry("stats-tx", S_IFREG | S_IRUGO, - priv->dir_dev, proc_get_stats_tx, dev); - - if (!e) { - RT_TRACE(COMP_ERR, "Unable to initialize " - "/proc/net/rtl8192/%s/stats-tx\n", - dev->name); - } - - e = create_proc_read_entry("stats-ap", S_IFREG | S_IRUGO, - priv->dir_dev, proc_get_stats_ap, dev); - - if (!e) { - RT_TRACE(COMP_ERR, "Unable to initialize " - "/proc/net/rtl8192/%s/stats-ap\n", - dev->name); - } - - e = create_proc_read_entry("registers", S_IFREG | S_IRUGO, - priv->dir_dev, proc_get_registers, dev); - if (!e) { - RT_TRACE(COMP_ERR, "Unable to initialize " - "/proc/net/rtl8192/%s/registers\n", - dev->name); - } -} /**************************************************************************** -----------------------------MISC STUFF------------------------- *****************************************************************************/ From 5ba02e355d00ada1ef30515a8ba2aac750d3c256 Mon Sep 17 00:00:00 2001 From: David Howells Date: Mon, 8 Apr 2013 15:48:07 +0100 Subject: [PATCH 153/204] rtl8187se: Don't use create_proc_read_entry() Don't use create_proc_read_entry() as that is deprecated, but rather use proc_create_data() and seq_file instead. Whilst we're at it, reduce the number of show functions where we can share them. Question: Do any of the registers read by proc_get_registers() have side effects upon reading? If so, locking will be required. Signed-off-by: David Howells cc: Greg Kroah-Hartman cc: Maxim Mikityanskiy cc: YAMANE Toshiaki cc: Bill Pemberton cc: Andrea Merello cc: linux-wireless@vger.kernel.org cc: devel@driverdev.osuosl.org Signed-off-by: Al Viro --- drivers/staging/rtl8187se/r8180_core.c | 134 ++++++++++++------------- 1 file changed, 63 insertions(+), 71 deletions(-) diff --git a/drivers/staging/rtl8187se/r8180_core.c b/drivers/staging/rtl8187se/r8180_core.c index d10d75e8a33f..448da77e2cd1 100644 --- a/drivers/staging/rtl8187se/r8180_core.c +++ b/drivers/staging/rtl8187se/r8180_core.c @@ -36,6 +36,8 @@ #include #include #include +#include +#include #include "r8180_hw.h" #include "r8180.h" @@ -204,51 +206,35 @@ void rtl8180_start_tx_beacon(struct net_device *dev); static struct proc_dir_entry *rtl8180_proc; -static int proc_get_registers(char *page, char **start, - off_t offset, int count, - int *eof, void *data) +static int proc_get_registers(struct seq_file *m, void *v) { - struct net_device *dev = data; - int len = 0; - int i, n; - int max = 0xff; + struct net_device *dev = m->private; + int i, n, max = 0xff; /* This dump the current register page */ for (n = 0; n <= max;) { - len += snprintf(page + len, count - len, "\nD: %2x > ", n); + seq_printf(m, "\nD: %2x > ", n); for (i = 0; i < 16 && n <= max; i++, n++) - len += snprintf(page + len, count - len, "%2x ", - read_nic_byte(dev, n)); + seq_printf(m, "%2x ", read_nic_byte(dev, n)); } - len += snprintf(page + len, count - len, "\n"); - - *eof = 1; - return len; + seq_putc(m, '\n'); + return 0; } int get_curr_tx_free_desc(struct net_device *dev, int priority); -static int proc_get_stats_hw(char *page, char **start, - off_t offset, int count, - int *eof, void *data) +static int proc_get_stats_hw(struct seq_file *m, void *v) { - int len = 0; - - *eof = 1; - return len; + return 0; } -static int proc_get_stats_rx(char *page, char **start, - off_t offset, int count, - int *eof, void *data) +static int proc_get_stats_rx(struct seq_file *m, void *v) { - struct net_device *dev = data; + struct net_device *dev = m->private; struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev); - int len = 0; - - len += snprintf(page + len, count - len, + seq_printf(m, "RX OK: %lu\n" "RX Retry: %lu\n" "RX CRC Error(0-500): %lu\n" @@ -263,22 +249,17 @@ static int proc_get_stats_rx(char *page, char **start, priv->stats.rxicverr ); - *eof = 1; - return len; + return 0; } -static int proc_get_stats_tx(char *page, char **start, - off_t offset, int count, - int *eof, void *data) +static int proc_get_stats_tx(struct seq_file *m, void *v) { - struct net_device *dev = data; + struct net_device *dev = m->private; struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev); - - int len = 0; unsigned long totalOK; totalOK = priv->stats.txnpokint+priv->stats.txhpokint+priv->stats.txlpokint; - len += snprintf(page + len, count - len, + seq_printf(m, "TX OK: %lu\n" "TX Error: %lu\n" "TX Retry: %lu\n" @@ -291,8 +272,7 @@ static int proc_get_stats_tx(char *page, char **start, priv->stats.txbeaconerr ); - *eof = 1; - return len; + return 0; } void rtl8180_proc_module_init(void) @@ -318,9 +298,43 @@ void rtl8180_proc_remove_one(struct net_device *dev) } } +/* + * seq_file wrappers for procfile show routines. + */ +static int rtl8180_proc_open(struct inode *inode, struct file *file) +{ + struct net_device *dev = PDE(inode)->parent->data; + int (*show)(struct seq_file *, void *) = PDE_DATA(inode); + + return single_open(file, show, dev); +} + +static const struct file_operations rtl8180_proc_fops = { + .open = rtl8180_proc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + +/* + * Table of proc files we need to create. + */ +struct rtl8180_proc_file { + char name[12]; + int (*show)(struct seq_file *, void *); +}; + +static const struct rtl8180_proc_file rtl8180_proc_files[] = { + { "stats-hw", &proc_get_stats_hw }, + { "stats-rx", &proc_get_stats_rx }, + { "stats-tx", &proc_get_stats_tx }, + { "registers", &proc_get_registers }, + { "" } +}; + void rtl8180_proc_init_one(struct net_device *dev) { - struct proc_dir_entry *e; + const struct rtl8180_proc_file *f; struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev); priv->dir_dev = rtl8180_proc; @@ -329,38 +343,16 @@ void rtl8180_proc_init_one(struct net_device *dev) dev->name); return; } + priv->dir_dev->data = dev; - e = create_proc_read_entry("stats-hw", S_IFREG | S_IRUGO, - priv->dir_dev, proc_get_stats_hw, dev); - if (!e) { - DMESGE("Unable to initialize " - "/proc/net/r8180/%s/stats-hw\n", - dev->name); - } - - e = create_proc_read_entry("stats-rx", S_IFREG | S_IRUGO, - priv->dir_dev, proc_get_stats_rx, dev); - if (!e) { - DMESGE("Unable to initialize " - "/proc/net/r8180/%s/stats-rx\n", - dev->name); - } - - - e = create_proc_read_entry("stats-tx", S_IFREG | S_IRUGO, - priv->dir_dev, proc_get_stats_tx, dev); - if (!e) { - DMESGE("Unable to initialize " - "/proc/net/r8180/%s/stats-tx\n", - dev->name); - } - - e = create_proc_read_entry("registers", S_IFREG | S_IRUGO, - priv->dir_dev, proc_get_registers, dev); - if (!e) { - DMESGE("Unable to initialize " - "/proc/net/r8180/%s/registers\n", - dev->name); + for (f = rtl8180_proc_files; f->name[0]; f++) { + if (!proc_create_data(f->name, S_IFREG | S_IRUGO, + priv->dir_dev, + &rtl8180_proc_fops, f->show)) { + DMESGE("Unable to initialize /proc/net/r8180/%s\n", + f->name); + return; + } } } From 207e39099a90a7385900aca4868ed686f25300cb Mon Sep 17 00:00:00 2001 From: David Howells Date: Mon, 8 Apr 2013 16:06:20 +0100 Subject: [PATCH 154/204] ft1000: Don't use create_proc_read_entry() Don't use create_proc_read_entry() as that is deprecated, but rather use proc_create_data() and seq_file instead. Signed-off-by: David Howells cc: Marek Belisko cc: Greg Kroah-Hartman cc: Ondrej Zary cc: devel@driverdev.osuosl.org Signed-off-by: Al Viro --- .../ft1000/ft1000-pcmcia/ft1000_proc.c | 130 +++++++++--------- .../staging/ft1000/ft1000-usb/ft1000_proc.c | 129 ++++++++--------- 2 files changed, 123 insertions(+), 136 deletions(-) diff --git a/drivers/staging/ft1000/ft1000-pcmcia/ft1000_proc.c b/drivers/staging/ft1000/ft1000-pcmcia/ft1000_proc.c index 5337b415d450..21b369e0150f 100644 --- a/drivers/staging/ft1000/ft1000-pcmcia/ft1000_proc.c +++ b/drivers/staging/ft1000/ft1000-pcmcia/ft1000_proc.c @@ -19,6 +19,7 @@ #include #include #include +#include #include #include #include @@ -29,70 +30,55 @@ #define FT1000_PROC "ft1000" #define MAX_FILE_LEN 255 -#define PUTM_TO_PAGE(len, page, args...) \ - len += snprintf(page+len, PAGE_SIZE - len, args) - -#define PUTX_TO_PAGE(len, page, message, size, var) \ - len += snprintf(page+len, PAGE_SIZE - len, message); \ +#define seq_putx(m, message, size, var) \ + seq_printf(m, message); \ for(i = 0; i < (size - 1); i++) { \ - len += snprintf(page+len, PAGE_SIZE - len, "%02x:", var[i]); \ + seq_printf(m, "%02x:", var[i]); \ } \ - len += snprintf(page+len, PAGE_SIZE - len, "%02x\n", var[i]) + seq_printf(m, "%02x\n", var[i]) -#define PUTD_TO_PAGE(len, page, message, size, var) \ - len += snprintf(page+len, PAGE_SIZE - len, message); \ +#define seq_putd(m, message, size, var) \ + seq_printf(m, message); \ for(i = 0; i < (size - 1); i++) { \ - len += snprintf(page+len, PAGE_SIZE - len, "%d.", var[i]); \ + seq_printf(m, "%d.", var[i]); \ } \ - len += snprintf(page+len, PAGE_SIZE - len, "%d\n", var[i]) + seq_printf(m, "%d\n", var[i]) -static int ft1000ReadProc(char *page, char **start, off_t off, - int count, int *eof, void *data) +static int ft1000ReadProc(struct seq_file *m, void *v) { - struct net_device *dev; - int len; - int i; - struct ft1000_info *info; - char *status[] = { + static const char *status[] = { "Idle (Disconnect)", "Searching", "Active (Connected)", "Waiting for L2", "Sleep", "No Coverage", "", "" }; - char *signal[] = { "", "*", "**", "***", "****" }; + static const char *signal[] = { "", "*", "**", "***", "****" }; + + struct net_device *dev = m->private; + struct ft1000_info *info = netdev_priv(dev); + int i; int strength; int quality; struct timeval tv; time_t delta; - dev = (struct net_device *)data; - info = netdev_priv(dev); - - if (off > 0) { - *eof = 1; - return 0; - } - - /* Wrap-around */ - if (info->AsicID == ELECTRABUZZ_ID) { if (info->ProgConStat != 0xFF) { info->LedStat = ft1000_read_dpram(dev, FT1000_DSP_LED); info->ConStat = - ft1000_read_dpram(dev, - FT1000_DSP_CON_STATE); + ft1000_read_dpram(dev, FT1000_DSP_CON_STATE); } else { info->ConStat = 0xf; } } else { if (info->ProgConStat != 0xFF) { info->LedStat = - ntohs(ft1000_read_dpram_mag_16 - (dev, FT1000_MAG_DSP_LED, - FT1000_MAG_DSP_LED_INDX)); + ntohs(ft1000_read_dpram_mag_16( + dev, FT1000_MAG_DSP_LED, + FT1000_MAG_DSP_LED_INDX)); info->ConStat = - ntohs(ft1000_read_dpram_mag_16 - (dev, FT1000_MAG_DSP_CON_STATE, - FT1000_MAG_DSP_CON_STATE_INDX)); + ntohs(ft1000_read_dpram_mag_16( + dev, FT1000_MAG_DSP_CON_STATE, + FT1000_MAG_DSP_CON_STATE_INDX)); } else { info->ConStat = 0xf; } @@ -135,36 +121,46 @@ static int ft1000ReadProc(char *page, char **start, off_t off, } do_gettimeofday(&tv); - delta = (tv.tv_sec - info->ConTm); - len = 0; - PUTM_TO_PAGE(len, page, "Connection Time: %02ld:%02ld:%02ld\n", + delta = tv.tv_sec - info->ConTm; + seq_printf(m, "Connection Time: %02ld:%02ld:%02ld\n", ((delta / 3600) % 24), ((delta / 60) % 60), (delta % 60)); - PUTM_TO_PAGE(len, page, "Connection Time[s]: %ld\n", delta); - PUTM_TO_PAGE(len, page, "Asic ID: %s\n", - (info->AsicID) == + seq_printf(m, "Connection Time[s]: %ld\n", delta); + seq_printf(m, "Asic ID: %s\n", + info->AsicID == ELECTRABUZZ_ID ? "ELECTRABUZZ ASIC" : "MAGNEMITE ASIC"); - PUTX_TO_PAGE(len, page, "SKU: ", SKUSZ, info->Sku); - PUTX_TO_PAGE(len, page, "EUI64: ", EUISZ, info->eui64); - PUTD_TO_PAGE(len, page, "DSP version number: ", DSPVERSZ, info->DspVer); - PUTX_TO_PAGE(len, page, "Hardware Serial Number: ", HWSERNUMSZ, - info->HwSerNum); - PUTX_TO_PAGE(len, page, "Caliberation Version: ", CALVERSZ, - info->RfCalVer); - PUTD_TO_PAGE(len, page, "Caliberation Date: ", CALDATESZ, - info->RfCalDate); - PUTM_TO_PAGE(len, page, "Media State: %s\n", + seq_putx(m, "SKU: ", SKUSZ, info->Sku); + seq_putx(m, "EUI64: ", EUISZ, info->eui64); + seq_putd(m, "DSP version number: ", DSPVERSZ, info->DspVer); + seq_putx(m, "Hardware Serial Number: ", HWSERNUMSZ, info->HwSerNum); + seq_putx(m, "Caliberation Version: ", CALVERSZ, info->RfCalVer); + seq_putd(m, "Caliberation Date: ", CALDATESZ, info->RfCalDate); + seq_printf(m, "Media State: %s\n", (info->mediastate) ? "link" : "no link"); - PUTM_TO_PAGE(len, page, "Connection Status: %s\n", - status[((info->ConStat) & 0x7)]); - PUTM_TO_PAGE(len, page, "RX packets: %ld\n", info->stats.rx_packets); - PUTM_TO_PAGE(len, page, "TX packets: %ld\n", info->stats.tx_packets); - PUTM_TO_PAGE(len, page, "RX bytes: %ld\n", info->stats.rx_bytes); - PUTM_TO_PAGE(len, page, "TX bytes: %ld\n", info->stats.tx_bytes); - PUTM_TO_PAGE(len, page, "Signal Strength: %s\n", signal[strength]); - PUTM_TO_PAGE(len, page, "Signal Quality: %s\n", signal[quality]); - return len; + seq_printf(m, "Connection Status: %s\n", status[info->ConStat & 0x7]); + seq_printf(m, "RX packets: %ld\n", info->stats.rx_packets); + seq_printf(m, "TX packets: %ld\n", info->stats.tx_packets); + seq_printf(m, "RX bytes: %ld\n", info->stats.rx_bytes); + seq_printf(m, "TX bytes: %ld\n", info->stats.tx_bytes); + seq_printf(m, "Signal Strength: %s\n", signal[strength]); + seq_printf(m, "Signal Quality: %s\n", signal[quality]); + return 0; } +/* + * seq_file wrappers for procfile show routines. + */ +static int ft1000_proc_open(struct inode *inode, struct file *file) +{ + return single_open(file, ft1000ReadProc, PDE_DATA(inode)); +} + +static const struct file_operations ft1000_proc_fops = { + .open = ft1000_proc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + static int ft1000NotifyProc(struct notifier_block *this, unsigned long event, void *ptr) { @@ -176,8 +172,8 @@ static int ft1000NotifyProc(struct notifier_block *this, unsigned long event, switch (event) { case NETDEV_CHANGENAME: remove_proc_entry(info->netdevname, info->ft1000_proc_dir); - create_proc_read_entry(dev->name, 0644, info->ft1000_proc_dir, - ft1000ReadProc, dev); + proc_create_data(dev->name, 0644, info->ft1000_proc_dir, + &ft1000_proc_fops, dev); snprintf(info->netdevname, IFNAMSIZ, "%s", dev->name); break; } @@ -195,8 +191,10 @@ void ft1000InitProc(struct net_device *dev) info = netdev_priv(dev); info->ft1000_proc_dir = proc_mkdir(FT1000_PROC, init_net.proc_net); - create_proc_read_entry(dev->name, 0644, info->ft1000_proc_dir, - ft1000ReadProc, dev); + + proc_create_data(dev->name, 0644, info->ft1000_proc_dir, + &ft1000_proc_fops, dev); + snprintf(info->netdevname, IFNAMSIZ, "%s", dev->name); register_netdevice_notifier(&ft1000_netdev_notifier); } diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_proc.c b/drivers/staging/ft1000/ft1000-usb/ft1000_proc.c index b99640637fe0..d8294d6c9560 100644 --- a/drivers/staging/ft1000/ft1000-usb/ft1000_proc.c +++ b/drivers/staging/ft1000/ft1000-usb/ft1000_proc.c @@ -22,6 +22,7 @@ #include #include #include +#include #include @@ -30,22 +31,17 @@ #define FT1000_PROC_DIR "ft1000" -#define PUTM_TO_PAGE(len,page,args...) \ - len += snprintf(page+len, PAGE_SIZE - len, args) +#define seq_putx(m, message, size, var) \ + seq_printf(m, message); \ + for(i = 0; i < (size - 1); i++) \ + seq_printf(m, "%02x:", var[i]); \ + seq_printf(m, "%02x\n", var[i]) -#define PUTX_TO_PAGE(len,page,message,size,var) \ - len += snprintf(page+len, PAGE_SIZE - len, message); \ - for (i = 0; i < (size - 1); i++) {\ - len += snprintf(page+len, PAGE_SIZE - len, "%02x:", var[i]); \ - } \ - len += snprintf(page+len, PAGE_SIZE - len, "%02x\n", var[i]) - -#define PUTD_TO_PAGE(len,page,message,size,var) \ - len += snprintf(page+len, PAGE_SIZE - len, message); \ - for (i = 0; i < (size - 1); i++) {\ - len += snprintf(page+len, PAGE_SIZE - len, "%d.", var[i]); \ - } \ - len += snprintf(page+len, PAGE_SIZE - len, "%d\n", var[i]) +#define seq_putd(m, message, size, var) \ + seq_printf(m, message); \ + for(i = 0; i < (size - 1); i++) \ + seq_printf(m, "%d.", var[i]); \ + seq_printf(m, "%d\n", var[i]) #define FTNET_PROC init_net.proc_net @@ -55,19 +51,9 @@ int ft1000_read_dpram16 (struct ft1000_usb *ft1000dev, u16 indx, u8 *buffer, u8 highlow); -static int -ft1000ReadProc(char *page, char **start, off_t off, int count, int *eof, - void *data) +static int ft1000ReadProc(struct seq_file *m, void *v) { - struct net_device *dev; - int len; - int i; - unsigned short ledStat; - unsigned short conStat; - - struct ft1000_info *info; - - char *status[] = { + static const char *status[] = { "Idle (Disconnect)", "Searching", "Active (Connected)", @@ -77,22 +63,18 @@ ft1000ReadProc(char *page, char **start, off_t off, int count, int *eof, "", "", }; + static const char *signal[] = { "", "*", "**", "***", "****" }; - char *signal[] = { "", "*", "**", "***", "****" }; + struct net_device *dev = m->private; + struct ft1000_info *info = netdev_priv(dev); + int i; + unsigned short ledStat; + unsigned short conStat; int strength; int quality; struct timeval tv; time_t delta; - dev = (struct net_device *) data; - info = netdev_priv(dev); - - if (off > 0) { - *eof = 1; - return 0; - } - - if (info->ProgConStat != 0xFF) { ft1000_read_dpram16(info->priv, FT1000_MAG_DSP_LED, (u8 *)&ledStat, FT1000_MAG_DSP_LED_INDX); @@ -144,36 +126,43 @@ ft1000ReadProc(char *page, char **start, off_t off, int count, int *eof, quality = 0; } - len = 0; - PUTM_TO_PAGE(len, page, "Connection Time: %02ld:%02ld:%02ld\n", + seq_printf(m, "Connection Time: %02ld:%02ld:%02ld\n", ((delta / 3600) % 24), ((delta / 60) % 60), (delta % 60)); - PUTM_TO_PAGE(len, page, "Connection Time[s]: %ld\n", delta); - PUTM_TO_PAGE(len, page, "Asic ID: %s\n", - (info->AsicID) == - ELECTRABUZZ_ID ? "ELECTRABUZZ ASIC" : "MAGNEMITE ASIC"); - PUTX_TO_PAGE(len, page, "SKU: ", SKUSZ, info->Sku); - PUTX_TO_PAGE(len, page, "EUI64: ", EUISZ, info->eui64); - PUTD_TO_PAGE(len, page, "DSP version number: ", DSPVERSZ, info->DspVer); - PUTX_TO_PAGE(len, page, "Hardware Serial Number: ", HWSERNUMSZ, - info->HwSerNum); - PUTX_TO_PAGE(len, page, "Caliberation Version: ", CALVERSZ, - info->RfCalVer); - PUTD_TO_PAGE(len, page, "Caliberation Date: ", CALDATESZ, - info->RfCalDate); - PUTM_TO_PAGE(len, page, "Media State: %s\n", - (info->mediastate) ? "link" : "no link"); - PUTM_TO_PAGE(len, page, "Connection Status: %s\n", - status[((info->ConStat) & 0x7)]); - PUTM_TO_PAGE(len, page, "RX packets: %ld\n", info->stats.rx_packets); - PUTM_TO_PAGE(len, page, "TX packets: %ld\n", info->stats.tx_packets); - PUTM_TO_PAGE(len, page, "RX bytes: %ld\n", info->stats.rx_bytes); - PUTM_TO_PAGE(len, page, "TX bytes: %ld\n", info->stats.tx_bytes); - PUTM_TO_PAGE(len, page, "Signal Strength: %s\n", signal[strength]); - PUTM_TO_PAGE(len, page, "Signal Quality: %s\n", signal[quality]); - - return len; + seq_printf(m, "Connection Time[s]: %ld\n", delta); + seq_printf(m, "Asic ID: %s\n", + (info->AsicID) == ELECTRABUZZ_ID ? "ELECTRABUZZ ASIC" : "MAGNEMITE ASIC"); + seq_putx(m, "SKU: ", SKUSZ, info->Sku); + seq_putx(m, "EUI64: ", EUISZ, info->eui64); + seq_putd(m, "DSP version number: ", DSPVERSZ, info->DspVer); + seq_putx(m, "Hardware Serial Number: ", HWSERNUMSZ, info->HwSerNum); + seq_putx(m, "Caliberation Version: ", CALVERSZ, info->RfCalVer); + seq_putd(m, "Caliberation Date: ", CALDATESZ, info->RfCalDate); + seq_printf(m, "Media State: %s\n", (info->mediastate) ? "link" : "no link"); + seq_printf(m, "Connection Status: %s\n", status[info->ConStat & 0x7]); + seq_printf(m, "RX packets: %ld\n", info->stats.rx_packets); + seq_printf(m, "TX packets: %ld\n", info->stats.tx_packets); + seq_printf(m, "RX bytes: %ld\n", info->stats.rx_bytes); + seq_printf(m, "TX bytes: %ld\n", info->stats.tx_bytes); + seq_printf(m, "Signal Strength: %s\n", signal[strength]); + seq_printf(m, "Signal Quality: %s\n", signal[quality]); + return 0; } +/* + * seq_file wrappers for procfile show routines. + */ +static int ft1000_proc_open(struct inode *inode, struct file *file) +{ + return single_open(file, ft1000ReadProc, PDE_DATA(inode)); +} + +static const struct file_operations ft1000_proc_fops = { + .open = ft1000_proc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + static int ft1000NotifyProc(struct notifier_block *this, unsigned long event, void *ptr) { @@ -186,9 +175,9 @@ ft1000NotifyProc(struct notifier_block *this, unsigned long event, void *ptr) switch (event) { case NETDEV_CHANGENAME: remove_proc_entry(info->netdevname, info->ft1000_proc_dir); - ft1000_proc_file = create_proc_read_entry(dev->name, 0644, - info->ft1000_proc_dir, - ft1000ReadProc, dev); + ft1000_proc_file = + proc_create_data(dev->name, 0644, info->ft1000_proc_dir, + &ft1000_proc_fops, dev); snprintf(info->netdevname, IFNAMSIZ, "%s", dev->name); break; } @@ -217,10 +206,10 @@ int ft1000_init_proc(struct net_device *dev) } ft1000_proc_file = - create_proc_read_entry(dev->name, 0644, - info->ft1000_proc_dir, ft1000ReadProc, dev); + proc_create_data(dev->name, 0644, info->ft1000_proc_dir, + &ft1000_proc_fops, dev); - if (ft1000_proc_file == NULL) { + if (!ft1000_proc_file) { printk(KERN_WARNING "Unable to create /proc entry.\n"); goto fail_entry; } From 1f817b86d5e6aceed48dac7db6ce9a82a4375e3f Mon Sep 17 00:00:00 2001 From: David Howells Date: Mon, 8 Apr 2013 16:39:33 +0100 Subject: [PATCH 155/204] comedi: Don't use create_proc_read_entry() Don't use create_proc_read_entry() as that is deprecated, but rather use proc_create_data() and seq_file instead. Signed-off-by: David Howells cc: David Schleef cc: Ian Abbott cc: Mori Hess cc: Greg Kroah-Hartman cc: H Hartley Sweeten cc: devel@driverdev.osuosl.org Signed-off-by: Al Viro --- drivers/staging/comedi/proc.c | 52 +++++++++++++++++++++-------------- 1 file changed, 31 insertions(+), 21 deletions(-) diff --git a/drivers/staging/comedi/proc.c b/drivers/staging/comedi/proc.c index f01e0cccac3b..db790f9fc9db 100644 --- a/drivers/staging/comedi/proc.c +++ b/drivers/staging/comedi/proc.c @@ -31,17 +31,15 @@ #include "comedidev.h" #include "comedi_internal.h" #include -#include +#include -static int comedi_read(char *buf, char **start, off_t offset, int len, - int *eof, void *data) +static int comedi_read(struct seq_file *m, void *v) { int i; int devices_q = 0; - int l = 0; struct comedi_driver *driv; - l += sprintf(buf + l, + seq_printf(m, "comedi version " COMEDI_RELEASE "\n" "format string: %s\n", "\"%2d: %-20s %-20s %4d\", i, " @@ -49,39 +47,51 @@ static int comedi_read(char *buf, char **start, off_t offset, int len, for (i = 0; i < COMEDI_NUM_BOARD_MINORS; i++) { struct comedi_device *dev = comedi_dev_from_minor(i); - if (!dev) continue; if (dev->attached) { devices_q = 1; - l += sprintf(buf + l, "%2d: %-20s %-20s %4d\n", - i, - dev->driver->driver_name, - dev->board_name, dev->n_subdevices); + seq_printf(m, "%2d: %-20s %-20s %4d\n", + i, dev->driver->driver_name, + dev->board_name, dev->n_subdevices); } } if (!devices_q) - l += sprintf(buf + l, "no devices\n"); + seq_puts(m, "no devices\n"); for (driv = comedi_drivers; driv; driv = driv->next) { - l += sprintf(buf + l, "%s:\n", driv->driver_name); - for (i = 0; i < driv->num_names; i++) { - l += sprintf(buf + l, " %s\n", - *(char **)((char *)driv->board_name + - i * driv->offset)); - } + seq_printf(m, "%s:\n", driv->driver_name); + for (i = 0; i < driv->num_names; i++) + seq_printf(m, " %s\n", + *(char **)((char *)driv->board_name + + i * driv->offset)); + if (!driv->num_names) - l += sprintf(buf + l, " %s\n", driv->driver_name); + seq_printf(m, " %s\n", driv->driver_name); } - return l; + return 0; } +/* + * seq_file wrappers for procfile show routines. + */ +static int comedi_proc_open(struct inode *inode, struct file *file) +{ + return single_open(file, comedi_read, NULL); +} + +static const struct file_operations comedi_proc_fops = { + .open = comedi_proc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + void comedi_proc_init(void) { - create_proc_read_entry("comedi", S_IFREG | S_IRUGO, NULL, - comedi_read, NULL); + proc_create("comedi", 0644, NULL, &comedi_proc_fops); } void comedi_proc_cleanup(void) From 294a08e4b01a9834c5b41f49bac592006156f454 Mon Sep 17 00:00:00 2001 From: David Howells Date: Mon, 8 Apr 2013 16:50:22 +0100 Subject: [PATCH 156/204] csr: Don't use create_proc_read_entry() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Don't use create_proc_read_entry() as that is deprecated, but rather use proc_create_data() and seq_file instead. Signed-off-by: David Howells cc: Greg Kroah-Hartman cc: Randy Dunlap cc: Priit Laes cc: devel@driverdev.osuosl.org cc: Mikko Virkkilä cc: Lauri Hintsala cc: Riku Mettälä cc: Veli-Pekka Peltola Signed-off-by: Al Viro --- drivers/staging/csr/csr_wifi_hip_udi.c | 317 +++++++------------ drivers/staging/csr/csr_wifi_hip_unifi_udi.h | 17 +- drivers/staging/csr/io.c | 147 ++++----- 3 files changed, 169 insertions(+), 312 deletions(-) diff --git a/drivers/staging/csr/csr_wifi_hip_udi.c b/drivers/staging/csr/csr_wifi_hip_udi.c index a65b822db698..a6b006b0e983 100644 --- a/drivers/staging/csr/csr_wifi_hip_udi.c +++ b/drivers/staging/csr/csr_wifi_hip_udi.c @@ -24,10 +24,50 @@ * * --------------------------------------------------------------------------- */ +#include #include "csr_wifi_hip_unifi.h" #include "csr_wifi_hip_card.h" +static void unifi_print_unsafe_sdio_status(card_t *card, struct seq_file *m) +{ +#ifdef CSR_UNSAFE_SDIO_ACCESS + s32 iostate; + CsrResult r; + static const char *const states[] = { + "AWAKE", "DROWSY", "TORPID" + }; +#define SHARED_READ_RETRY_LIMIT 10 + u8 b; + + seq_printf(m, "Host State: %s\n", states[card->host_state]); + + r = unifi_check_io_status(card, &iostate); + if (iostate == 1) { + seq_puts(m, remaining, "I/O Check: F1 disabled\n"); + } else { + if (iostate == 1) { + seq_puts(m, "I/O Check: pending interrupt\n"); + + seq_printf(m, "BH reason interrupt = %d\n", card->bh_reason_unifi); + seq_printf(m, "BH reason host = %d\n", card->bh_reason_host); + + for (i = 0; i < SHARED_READ_RETRY_LIMIT; i++) { + r = unifi_read_8_or_16(card, card->sdio_ctrl_addr + 2, &b); + if (r == CSR_RESULT_SUCCESS && !(b & 0x80)) { + seq_printf(m, "fhsr: %u (driver thinks is %u)\n", + b, card->from_host_signals_r); + break; + } + } + + iostate = unifi_read_shared_count(card, card->sdio_ctrl_addr + 4); + seq_printf(m, "thsw: %u (driver thinks is %u)\n", + iostate, card->to_host_signals_w); + } +#endif +} + /* * --------------------------------------------------------------------------- * unifi_print_status @@ -41,228 +81,93 @@ * None. * --------------------------------------------------------------------------- */ -s32 unifi_print_status(card_t *card, char *str, s32 *remain) +s32 unifi_print_status(card_t *card, struct seq_file *m) { - char *p = str; - sdio_config_data_t *cfg; - u16 i, n; - s32 remaining = *remain; - s32 written; -#ifdef CSR_UNSAFE_SDIO_ACCESS - s32 iostate; - CsrResult r; - static const char *const states[] = { - "AWAKE", "DROWSY", "TORPID" - }; - #define SHARED_READ_RETRY_LIMIT 10 - u8 b; -#endif + sdio_config_data_t *cfg; + u16 i, n; - if (remaining <= 0) - { - return 0; - } + i = n = 0; + seq_printf(m, "Chip ID %u\n", card->chip_id); + seq_printf(m, "Chip Version %04X\n", card->chip_version); + seq_printf(m, "HIP v%u.%u\n", + (card->config_data.version >> 8) & 0xFF, + card->config_data.version & 0xFF); + seq_printf(m, "Build %u: %s\n", card->build_id, card->build_id_string); - i = n = 0; - written = scnprintf(p, remaining, "Chip ID %u\n", - (u16)card->chip_id); - UNIFI_SNPRINTF_RET(p, remaining, written); - written = scnprintf(p, remaining, "Chip Version %04X\n", - card->chip_version); - UNIFI_SNPRINTF_RET(p, remaining, written); - written = scnprintf(p, remaining, "HIP v%u.%u\n", - (card->config_data.version >> 8) & 0xFF, - card->config_data.version & 0xFF); - UNIFI_SNPRINTF_RET(p, remaining, written); - written = scnprintf(p, remaining, "Build %u: %s\n", - card->build_id, card->build_id_string); - UNIFI_SNPRINTF_RET(p, remaining, written); + cfg = &card->config_data; - cfg = &card->config_data; + seq_printf(m, "sdio ctrl offset %u\n", cfg->sdio_ctrl_offset); + seq_printf(m, "fromhost sigbuf handle %u\n", cfg->fromhost_sigbuf_handle); + seq_printf(m, "tohost_sigbuf_handle %u\n", cfg->tohost_sigbuf_handle); + seq_printf(m, "num_fromhost_sig_frags %u\n", cfg->num_fromhost_sig_frags); + seq_printf(m, "num_tohost_sig_frags %u\n", cfg->num_tohost_sig_frags); + seq_printf(m, "num_fromhost_data_slots %u\n", cfg->num_fromhost_data_slots); + seq_printf(m, "num_tohost_data_slots %u\n", cfg->num_tohost_data_slots); + seq_printf(m, "data_slot_size %u\n", cfg->data_slot_size); - written = scnprintf(p, remaining, "sdio ctrl offset %u\n", - cfg->sdio_ctrl_offset); - UNIFI_SNPRINTF_RET(p, remaining, written); - written = scnprintf(p, remaining, "fromhost sigbuf handle %u\n", - cfg->fromhost_sigbuf_handle); - UNIFI_SNPRINTF_RET(p, remaining, written); - written = scnprintf(p, remaining, "tohost_sigbuf_handle %u\n", - cfg->tohost_sigbuf_handle); - UNIFI_SNPRINTF_RET(p, remaining, written); - written = scnprintf(p, remaining, "num_fromhost_sig_frags %u\n", - cfg->num_fromhost_sig_frags); - UNIFI_SNPRINTF_RET(p, remaining, written); - written = scnprintf(p, remaining, "num_tohost_sig_frags %u\n", - cfg->num_tohost_sig_frags); - UNIFI_SNPRINTF_RET(p, remaining, written); - written = scnprintf(p, remaining, "num_fromhost_data_slots %u\n", - cfg->num_fromhost_data_slots); - UNIFI_SNPRINTF_RET(p, remaining, written); - written = scnprintf(p, remaining, "num_tohost_data_slots %u\n", - cfg->num_tohost_data_slots); - UNIFI_SNPRINTF_RET(p, remaining, written); - written = scnprintf(p, remaining, "data_slot_size %u\n", - cfg->data_slot_size); - UNIFI_SNPRINTF_RET(p, remaining, written); + /* Added by protocol version 0x0001 */ + seq_printf(m, "overlay_size %u\n", cfg->overlay_size); - /* Added by protocol version 0x0001 */ - written = scnprintf(p, remaining, "overlay_size %u\n", - (u16)cfg->overlay_size); - UNIFI_SNPRINTF_RET(p, remaining, written); + /* Added by protocol version 0x0300 */ + seq_printf(m, "data_slot_round %u\n", cfg->data_slot_round); + seq_printf(m, "sig_frag_size %u\n", cfg->sig_frag_size); - /* Added by protocol version 0x0300 */ - written = scnprintf(p, remaining, "data_slot_round %u\n", - cfg->data_slot_round); - UNIFI_SNPRINTF_RET(p, remaining, written); - written = scnprintf(p, remaining, "sig_frag_size %u\n", - cfg->sig_frag_size); - UNIFI_SNPRINTF_RET(p, remaining, written); + /* Added by protocol version 0x0300 */ + seq_printf(m, "tohost_sig_pad %u\n", cfg->tohost_signal_padding); - /* Added by protocol version 0x0300 */ - written = scnprintf(p, remaining, "tohost_sig_pad %u\n", - cfg->tohost_signal_padding); - UNIFI_SNPRINTF_RET(p, remaining, written); + seq_puts(m, "\nInternal state:\n"); - written = scnprintf(p, remaining, "\nInternal state:\n"); - UNIFI_SNPRINTF_RET(p, remaining, written); + seq_printf(m, "Last PHY PANIC: %04x:%04x\n", + card->last_phy_panic_code, card->last_phy_panic_arg); + seq_printf(m, "Last MAC PANIC: %04x:%04x\n", + card->last_mac_panic_code, card->last_mac_panic_arg); - written = scnprintf(p, remaining, "Last PHY PANIC: %04x:%04x\n", - card->last_phy_panic_code, card->last_phy_panic_arg); - UNIFI_SNPRINTF_RET(p, remaining, written); - written = scnprintf(p, remaining, "Last MAC PANIC: %04x:%04x\n", - card->last_mac_panic_code, card->last_mac_panic_arg); - UNIFI_SNPRINTF_RET(p, remaining, written); + seq_printf(m, "fhsr: %hu\n", (u16)card->from_host_signals_r); + seq_printf(m, "fhsw: %hu\n", (u16)card->from_host_signals_w); + seq_printf(m, "thsr: %hu\n", (u16)card->to_host_signals_r); + seq_printf(m, "thsw: %hu\n", (u16)card->to_host_signals_w); + seq_printf(m, "fh buffer contains: %d signals, %td bytes\n", + card->fh_buffer.count, + card->fh_buffer.ptr - card->fh_buffer.buf); - written = scnprintf(p, remaining, "fhsr: %u\n", - (u16)card->from_host_signals_r); - UNIFI_SNPRINTF_RET(p, remaining, written); - written = scnprintf(p, remaining, "fhsw: %u\n", - (u16)card->from_host_signals_w); - UNIFI_SNPRINTF_RET(p, remaining, written); - written = scnprintf(p, remaining, "thsr: %u\n", - (u16)card->to_host_signals_r); - UNIFI_SNPRINTF_RET(p, remaining, written); - written = scnprintf(p, remaining, "thsw: %u\n", - (u16)card->to_host_signals_w); - UNIFI_SNPRINTF_RET(p, remaining, written); - written = scnprintf(p, remaining, - "fh buffer contains: %d signals, %td bytes\n", - card->fh_buffer.count, - card->fh_buffer.ptr - card->fh_buffer.buf); - UNIFI_SNPRINTF_RET(p, remaining, written); + seq_puts(m, "paused: "); + for (i = 0; i < ARRAY_SIZE(card->tx_q_paused_flag); i++) + seq_printf(m, card->tx_q_paused_flag[i] ? "1" : "0"); + seq_putc(m, '\n'); - written = scnprintf(p, remaining, "paused: "); - UNIFI_SNPRINTF_RET(p, remaining, written); - for (i = 0; i < sizeof(card->tx_q_paused_flag) / sizeof(card->tx_q_paused_flag[0]); i++) - { - written = scnprintf(p, remaining, card->tx_q_paused_flag[i]?"1" : "0"); - UNIFI_SNPRINTF_RET(p, remaining, written); - } - written = scnprintf(p, remaining, "\n"); - UNIFI_SNPRINTF_RET(p, remaining, written); + seq_printf(m, "fh command q: %u waiting, %u free of %u:\n", + CSR_WIFI_HIP_Q_SLOTS_USED(&card->fh_command_queue), + CSR_WIFI_HIP_Q_SLOTS_FREE(&card->fh_command_queue), + UNIFI_SOFT_COMMAND_Q_LENGTH); - written = scnprintf(p, remaining, - "fh command q: %u waiting, %u free of %u:\n", - CSR_WIFI_HIP_Q_SLOTS_USED(&card->fh_command_queue), - CSR_WIFI_HIP_Q_SLOTS_FREE(&card->fh_command_queue), - UNIFI_SOFT_COMMAND_Q_LENGTH); - UNIFI_SNPRINTF_RET(p, remaining, written); - for (i = 0; i < UNIFI_NO_OF_TX_QS; i++) - { - written = scnprintf(p, remaining, - "fh traffic q[%u]: %u waiting, %u free of %u:\n", - i, - CSR_WIFI_HIP_Q_SLOTS_USED(&card->fh_traffic_queue[i]), - CSR_WIFI_HIP_Q_SLOTS_FREE(&card->fh_traffic_queue[i]), - UNIFI_SOFT_TRAFFIC_Q_LENGTH); - UNIFI_SNPRINTF_RET(p, remaining, written); - } + for (i = 0; i < UNIFI_NO_OF_TX_QS; i++) + seq_printf(m, "fh traffic q[%u]: %u waiting, %u free of %u:\n", + i, + CSR_WIFI_HIP_Q_SLOTS_USED(&card->fh_traffic_queue[i]), + CSR_WIFI_HIP_Q_SLOTS_FREE(&card->fh_traffic_queue[i]), + UNIFI_SOFT_TRAFFIC_Q_LENGTH); - written = scnprintf(p, remaining, "fh data slots free: %u\n", - card->from_host_data?CardGetFreeFromHostDataSlots(card) : 0); - UNIFI_SNPRINTF_RET(p, remaining, written); + seq_printf(m, "fh data slots free: %u\n", + card->from_host_data ? CardGetFreeFromHostDataSlots(card) : 0); + seq_puts(m, "From host data slots:"); + n = card->config_data.num_fromhost_data_slots; + for (i = 0; i < n && card->from_host_data; i++) + seq_printf(m, " %hu", (u16)card->from_host_data[i].bd.data_length); + seq_putc(m, '\n'); - written = scnprintf(p, remaining, "From host data slots:"); - UNIFI_SNPRINTF_RET(p, remaining, written); - n = card->config_data.num_fromhost_data_slots; - for (i = 0; i < n && card->from_host_data; i++) - { - written = scnprintf(p, remaining, " %u", - (u16)card->from_host_data[i].bd.data_length); - UNIFI_SNPRINTF_RET(p, remaining, written); - } - written = scnprintf(p, remaining, "\n"); - UNIFI_SNPRINTF_RET(p, remaining, written); + seq_puts(m, "To host data slots:"); + n = card->config_data.num_tohost_data_slots; + for (i = 0; i < n && card->to_host_data; i++) + seq_printf(m, " %hu", (u16)card->to_host_data[i].data_length); + seq_putc(m, '\n'); - written = scnprintf(p, remaining, "To host data slots:"); - UNIFI_SNPRINTF_RET(p, remaining, written); - n = card->config_data.num_tohost_data_slots; - for (i = 0; i < n && card->to_host_data; i++) - { - written = scnprintf(p, remaining, " %u", - (u16)card->to_host_data[i].data_length); - UNIFI_SNPRINTF_RET(p, remaining, written); - } - - written = scnprintf(p, remaining, "\n"); - UNIFI_SNPRINTF_RET(p, remaining, written); - -#ifdef CSR_UNSAFE_SDIO_ACCESS - written = scnprintf(p, remaining, "Host State: %s\n", states[card->host_state]); - UNIFI_SNPRINTF_RET(p, remaining, written); - - r = unifi_check_io_status(card, &iostate); - if (iostate == 1) - { - written = scnprintf(p, remaining, "I/O Check: F1 disabled\n"); - UNIFI_SNPRINTF_RET(p, remaining, written); - } - else - { - if (iostate == 1) - { - written = scnprintf(p, remaining, "I/O Check: pending interrupt\n"); - UNIFI_SNPRINTF_RET(p, remaining, written); - } - - written = scnprintf(p, remaining, "BH reason interrupt = %d\n", - card->bh_reason_unifi); - UNIFI_SNPRINTF_RET(p, remaining, written); - written = scnprintf(p, remaining, "BH reason host = %d\n", - card->bh_reason_host); - UNIFI_SNPRINTF_RET(p, remaining, written); - - for (i = 0; i < SHARED_READ_RETRY_LIMIT; i++) - { - r = unifi_read_8_or_16(card, card->sdio_ctrl_addr + 2, &b); - if ((r == CSR_RESULT_SUCCESS) && (!(b & 0x80))) - { - written = scnprintf(p, remaining, "fhsr: %u (driver thinks is %u)\n", - b, card->from_host_signals_r); - UNIFI_SNPRINTF_RET(p, remaining, written); - break; - } - } - iostate = unifi_read_shared_count(card, card->sdio_ctrl_addr + 4); - written = scnprintf(p, remaining, "thsw: %u (driver thinks is %u)\n", - iostate, card->to_host_signals_w); - UNIFI_SNPRINTF_RET(p, remaining, written); - } -#endif - - written = scnprintf(p, remaining, "\nStats:\n"); - UNIFI_SNPRINTF_RET(p, remaining, written); - written = scnprintf(p, remaining, "Total SDIO bytes: R=%u W=%u\n", - card->sdio_bytes_read, card->sdio_bytes_written); - - UNIFI_SNPRINTF_RET(p, remaining, written); - written = scnprintf(p, remaining, "Interrupts generated on card: %u\n", - card->unifi_interrupt_seq); - UNIFI_SNPRINTF_RET(p, remaining, written); - - *remain = remaining; - return (p - str); -} /* unifi_print_status() */ + unifi_print_unsafe_sdio_status(card, m); + seq_puts(m, "\nStats:\n"); + seq_printf(m, "Total SDIO bytes: R=%u W=%u\n", + card->sdio_bytes_read, card->sdio_bytes_written); + seq_printf(m, "Interrupts generated on card: %u\n", card->unifi_interrupt_seq); + return 0; +} diff --git a/drivers/staging/csr/csr_wifi_hip_unifi_udi.h b/drivers/staging/csr/csr_wifi_hip_unifi_udi.h index 9d85cfd57616..4126e85bfe9b 100644 --- a/drivers/staging/csr/csr_wifi_hip_unifi_udi.h +++ b/drivers/staging/csr/csr_wifi_hip_unifi_udi.h @@ -47,21 +47,6 @@ CsrResult unifi_remove_udi_hook(card_t *card, udi_func_t udi_fn); * This is used in the linux /proc interface and might be useful * in other systems. */ -s32 unifi_print_status(card_t *card, char *str, s32 *remain); - -#define UNIFI_SNPRINTF_RET(buf_p, remain, written) \ - do { \ - if (written >= remain) { \ - if (remain >= 2) { \ - buf_p[remain - 2] = '\n'; \ - buf_p[remain - 1] = 0; \ - } \ - buf_p += remain; \ - remain = 0; \ - } else if (written > 0) { \ - buf_p += written; \ - remain -= written; \ - } \ - } while (0) +s32 unifi_print_status(card_t *card, struct seq_file *m); #endif /* __CSR_WIFI_HIP_UNIFI_UDI_H__ */ diff --git a/drivers/staging/csr/io.c b/drivers/staging/csr/io.c index af9c28f073b9..f9b5c22c00b8 100644 --- a/drivers/staging/csr/io.c +++ b/drivers/staging/csr/io.c @@ -31,6 +31,7 @@ * --------------------------------------------------------------------------- */ #include +#include #include "csr_wifi_hip_unifi.h" #include "csr_wifi_hip_unifiversion.h" @@ -76,9 +77,28 @@ DEFINE_SEMAPHORE(Unifi_instance_mutex); */ DECLARE_WAIT_QUEUE_HEAD(Unifi_cleanup_wq); +#ifdef CONFIG_PROC_FS +/* + * seq_file wrappers for procfile show routines. + */ +static int uf_proc_show(struct seq_file *m, void *v); -static int uf_read_proc(char *page, char **start, off_t offset, int count, - int *eof, void *data); +#define UNIFI_DEBUG_TXT_BUFFER (8 * 1024) + +static int uf_proc_open(struct inode *inode, struct file *file) +{ + return single_open_size(file, uf_proc_show, PDE_DATA(inode), + UNIFI_DEBUG_TXT_BUFFER); +} + +static const struct file_operations uf_proc_fops = { + .open = uf_proc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + +#endif /* CONFIG_PROC_FS */ #ifdef CSR_WIFI_RX_PATH_SPLIT @@ -327,8 +347,8 @@ register_unifi_sdio(CsrSdioFunction *sdio_dev, int bus_id, struct device *dev) * The following complex casting is in place in order to eliminate 64-bit compilation warning * "cast to/from pointer from/to integer of different size" */ - if (!create_proc_read_entry(priv->proc_entry_name, 0, 0, - uf_read_proc, (void *)(long)priv->instance)) + if (!proc_create_data(priv->proc_entry_name, 0, NULL, + &uf_proc_fops, (void *)(long)priv->instance)) { unifi_error(priv, "unifi: can't create /proc/driver/unifi\n"); } @@ -827,7 +847,7 @@ uf_put_instance(int inst) /* * --------------------------------------------------------------------------- - * uf_read_proc + * uf_proc_show * * Read method for driver node in /proc/driver/unifi0 * @@ -844,107 +864,54 @@ uf_put_instance(int inst) * --------------------------------------------------------------------------- */ #ifdef CONFIG_PROC_FS -static int -uf_read_proc(char *page, char **start, off_t offset, int count, - int *eof, void *data) +static int uf_proc_show(struct seq_file *m, void *v) { -#define UNIFI_DEBUG_TXT_BUFFER 8*1024 - unifi_priv_t *priv; - int actual_amount_to_copy; - char *p, *orig_p; - s32 remain = UNIFI_DEBUG_TXT_BUFFER; - s32 written; - int i; + unifi_priv_t *priv; + int i; - /* - * The following complex casting is in place in order to eliminate 64-bit compilation warning - * "cast to/from pointer from/to integer of different size" - */ - priv = uf_find_instance((int)(long)data); - if (!priv) { - return 0; - } + /* + * The following complex casting is in place in order to eliminate + * 64-bit compilation warning "cast to/from pointer from/to integer of + * different size" + */ + priv = uf_find_instance((long)m->private); + if (!priv) + return 0; - p = kmalloc( UNIFI_DEBUG_TXT_BUFFER, GFP_KERNEL ); - - orig_p = p; - - written = scnprintf(p, remain, "UniFi SDIO Driver: %s %s %s\n", - CSR_WIFI_VERSION, __DATE__, __TIME__); - UNIFI_SNPRINTF_RET(p, remain, written); + seq_printf(m, "UniFi SDIO Driver: %s %s %s\n", + CSR_WIFI_VERSION, __DATE__, __TIME__); #ifdef CSR_SME_USERSPACE - written = scnprintf(p, remain, "SME: CSR userspace "); - UNIFI_SNPRINTF_RET(p, remain, written); + seq_puts(m, "SME: CSR userspace "); #ifdef CSR_SUPPORT_WEXT - written = scnprintf(p, remain, "with WEXT support\n"); + seq_puts(m, "with WEXT support\n"); #else - written = scnprintf(p, remain, "\n"); + seq_putc(m, '\n'); #endif /* CSR_SUPPORT_WEXT */ - UNIFI_SNPRINTF_RET(p, remain, written); #endif /* CSR_SME_USERSPACE */ #ifdef CSR_NATIVE_LINUX - written = scnprintf(p, remain, "SME: native\n"); - UNIFI_SNPRINTF_RET(p, remain, written); + seq_puts(m, "SME: native\n"); #endif #ifdef CSR_SUPPORT_SME - written = scnprintf(p, remain, - "Firmware (ROM) build:%u, Patch:%u\n", - priv->card_info.fw_build, - priv->sme_versions.firmwarePatch); - UNIFI_SNPRINTF_RET(p, remain, written); + seq_printf(m, "Firmware (ROM) build:%u, Patch:%u\n", + priv->card_info.fw_build, + priv->sme_versions.firmwarePatch); #endif - p += unifi_print_status(priv->card, p, &remain); - written = scnprintf(p, remain, "Last dbg str: %s\n", - priv->last_debug_string); - UNIFI_SNPRINTF_RET(p, remain, written); + unifi_print_status(priv->card, m); - written = scnprintf(p, remain, "Last dbg16:"); - UNIFI_SNPRINTF_RET(p, remain, written); - for (i = 0; i < 8; i++) { - written = scnprintf(p, remain, " %04X", - priv->last_debug_word16[i]); - UNIFI_SNPRINTF_RET(p, remain, written); - } - written = scnprintf(p, remain, "\n"); - UNIFI_SNPRINTF_RET(p, remain, written); - written = scnprintf(p, remain, " "); - UNIFI_SNPRINTF_RET(p, remain, written); - for (; i < 16; i++) { - written = scnprintf(p, remain, " %04X", - priv->last_debug_word16[i]); - UNIFI_SNPRINTF_RET(p, remain, written); - } - written = scnprintf(p, remain, "\n"); - UNIFI_SNPRINTF_RET(p, remain, written); - *start = page; + seq_printf(m, "Last dbg str: %s\n", priv->last_debug_string); - written = UNIFI_DEBUG_TXT_BUFFER - remain; - - if( offset >= written ) - { - *eof = 1; - kfree( orig_p ); - return(0); - } - - if( offset + count > written ) - { - actual_amount_to_copy = written - offset; - *eof = 1; - } - else - { - actual_amount_to_copy = count; - } - - memcpy( page, &(orig_p[offset]), actual_amount_to_copy ); - - kfree( orig_p ); - - return( actual_amount_to_copy ); -} /* uf_read_proc() */ + seq_puts(m, "Last dbg16:"); + for (i = 0; i < 8; i++) + seq_printf(m, " %04X", priv->last_debug_word16[i]); + seq_putc(m, '\n'); + seq_puts(m, " "); + for (; i < 16; i++) + seq_printf(m, " %04X", priv->last_debug_word16[i]); + seq_putc(m, '\n'); + return 0; +} #endif From 766d100d4e412bf4cea59805375790db3d698331 Mon Sep 17 00:00:00 2001 From: David Howells Date: Mon, 8 Apr 2013 22:47:46 +0100 Subject: [PATCH 157/204] cxt1e1: Don't use create_proc_read_entry() Don't use create_proc_read_entry() as that is deprecated, but rather use proc_create_data() and seq_file instead. Signed-off-by: David Howells cc: Bob Beers cc: Greg Kroah-Hartman cc: devel@driverdev.osuosl.org Signed-off-by: Al Viro --- drivers/staging/cxt1e1/Makefile | 3 +- drivers/staging/cxt1e1/sbeproc.c | 446 +++++++++++-------------------- drivers/staging/cxt1e1/sbeproc.h | 14 +- 3 files changed, 168 insertions(+), 295 deletions(-) diff --git a/drivers/staging/cxt1e1/Makefile b/drivers/staging/cxt1e1/Makefile index e99b82311823..b9ccb7650251 100644 --- a/drivers/staging/cxt1e1/Makefile +++ b/drivers/staging/cxt1e1/Makefile @@ -12,8 +12,9 @@ cxt1e1-y := \ linux.o \ functions.o \ hwprobe.o \ - sbeproc.o \ pmc93x6_eeprom.o \ sbecrc.o \ comet_tables.o \ sbeid.o + +cxt1e1-$(CONFIG_PROC_FS) += sbeproc.o diff --git a/drivers/staging/cxt1e1/sbeproc.c b/drivers/staging/cxt1e1/sbeproc.c index f42531c3d8da..49f10f0b7d29 100644 --- a/drivers/staging/cxt1e1/sbeproc.c +++ b/drivers/staging/cxt1e1/sbeproc.c @@ -19,6 +19,7 @@ #include #include #include +#include #include #include #include "pmcc4_sysdep.h" @@ -26,332 +27,193 @@ #include "pmcc4_private.h" #include "sbeproc.h" -/* forwards */ -void sbecom_get_brdinfo (ci_t *, struct sbe_brd_info *, u_int8_t *); +extern void sbecom_get_brdinfo(ci_t *, struct sbe_brd_info *, u_int8_t *); extern struct s_hdw_info hdw_info[MAX_BOARDS]; -#ifdef CONFIG_PROC_FS - -/********************************************************************/ -/* procfs stuff */ -/********************************************************************/ - - -void -sbecom_proc_brd_cleanup (ci_t * ci) +void sbecom_proc_brd_cleanup(ci_t *ci) { - if (ci->dir_dev) - { - char dir[7 + SBE_IFACETMPL_SIZE + 1]; - snprintf(dir, sizeof(dir), "driver/%s", ci->devname); - remove_proc_entry("info", ci->dir_dev); - remove_proc_entry(dir, NULL); - ci->dir_dev = NULL; - } + if (ci->dir_dev) { + char dir[7 + SBE_IFACETMPL_SIZE + 1]; + snprintf(dir, sizeof(dir), "driver/%s", ci->devname); + remove_proc_entry("info", ci->dir_dev); + remove_proc_entry(dir, NULL); + ci->dir_dev = NULL; + } } - -static int -sbecom_proc_get_sbe_info (char *buffer, char **start, off_t offset, - int length, int *eof, void *priv) +static void sbecom_proc_get_brdinfo(ci_t *ci, struct sbe_brd_info *bip) { - ci_t *ci = (ci_t *) priv; - int len = 0; - char *spd; - struct sbe_brd_info *bip; + hdw_info_t *hi = &hdw_info[ci->brdno]; + u_int8_t *bsn = 0; - if (!(bip = OS_kmalloc (sizeof (struct sbe_brd_info)))) - { - return -ENOMEM; - } -#if 0 - /** RLD DEBUG **/ - pr_info(">> sbecom_proc_get_sbe_info: entered, offset %d. length %d.\n", - (int) offset, (int) length); -#endif + switch (hi->promfmt) + { + case PROM_FORMAT_TYPE1: + bsn = (u_int8_t *) hi->mfg_info.pft1.Serial; + break; + case PROM_FORMAT_TYPE2: + bsn = (u_int8_t *) hi->mfg_info.pft2.Serial; + break; + } - { - hdw_info_t *hi = &hdw_info[ci->brdno]; + sbecom_get_brdinfo (ci, bip, bsn); - u_int8_t *bsn = 0; + pr_devel(">> sbecom_get_brdinfo: returned, first_if %p <%s> last_if %p <%s>\n", + bip->first_iname, bip->first_iname, + bip->last_iname, bip->last_iname); +} - switch (hi->promfmt) - { - case PROM_FORMAT_TYPE1: - bsn = (u_int8_t *) hi->mfg_info.pft1.Serial; - break; - case PROM_FORMAT_TYPE2: - bsn = (u_int8_t *) hi->mfg_info.pft2.Serial; - break; - } +/* + * Describe the driver state through /proc + */ +static int sbecom_proc_get_sbe_info(struct seq_file *m, void *v) +{ + ci_t *ci = m->private; + char *spd; + struct sbe_brd_info *bip; - sbecom_get_brdinfo (ci, bip, bsn); - } + if (!(bip = OS_kmalloc(sizeof(struct sbe_brd_info)))) + return -ENOMEM; -#if 0 - /** RLD DEBUG **/ - pr_info(">> sbecom_get_brdinfo: returned, first_if %p <%s> last_if %p <%s>\n", - (char *) &bip->first_iname, (char *) &bip->first_iname, - (char *) &bip->last_iname, (char *) &bip->last_iname); -#endif - len += sprintf (buffer + len, "Board Type: "); - switch (bip->brd_id) - { - case SBE_BOARD_ID (PCI_VENDOR_ID_SBE, PCI_DEVICE_ID_WANPMC_C1T3): - len += sprintf (buffer + len, "wanPMC-C1T3"); - break; - case SBE_BOARD_ID (PCI_VENDOR_ID_SBE, PCI_DEVICE_ID_WANPTMC_256T3_E1): - len += sprintf (buffer + len, "wanPTMC-256T3 "); - break; - case SBE_BOARD_ID (PCI_VENDOR_ID_SBE, PCI_DEVICE_ID_WANPTMC_256T3_T1): - len += sprintf (buffer + len, "wanPTMC-256T3 "); - break; - case SBE_BOARD_ID (PCI_VENDOR_ID_SBE, PCI_DEVICE_ID_WANPTMC_C24TE1): - len += sprintf (buffer + len, "wanPTMC-C24TE1"); - break; + pr_devel(">> sbecom_proc_get_sbe_info: entered\n"); - case SBE_BOARD_ID (PCI_VENDOR_ID_SBE, PCI_DEVICE_ID_WANPMC_C4T1E1): - case SBE_BOARD_ID (PCI_VENDOR_ID_SBE, PCI_DEVICE_ID_WANPMC_C4T1E1_L): - len += sprintf (buffer + len, "wanPMC-C4T1E1"); - break; - case SBE_BOARD_ID (PCI_VENDOR_ID_SBE, PCI_DEVICE_ID_WANPMC_C2T1E1): - case SBE_BOARD_ID (PCI_VENDOR_ID_SBE, PCI_DEVICE_ID_WANPMC_C2T1E1_L): - len += sprintf (buffer + len, "wanPMC-C2T1E1"); - break; - case SBE_BOARD_ID (PCI_VENDOR_ID_SBE, PCI_DEVICE_ID_WANPMC_C1T1E1): - case SBE_BOARD_ID (PCI_VENDOR_ID_SBE, PCI_DEVICE_ID_WANPMC_C1T1E1_L): - len += sprintf (buffer + len, "wanPMC-C1T1E1"); - break; + sbecom_proc_get_brdinfo(ci, bip); - case SBE_BOARD_ID (PCI_VENDOR_ID_SBE, PCI_DEVICE_ID_WANPCI_C4T1E1): - len += sprintf (buffer + len, "wanPCI-C4T1E1"); - break; - case SBE_BOARD_ID (PCI_VENDOR_ID_SBE, PCI_DEVICE_ID_WANPCI_C2T1E1): - len += sprintf (buffer + len, "wanPCI-C2T1E1"); - break; - case SBE_BOARD_ID (PCI_VENDOR_ID_SBE, PCI_DEVICE_ID_WANPCI_C1T1E1): - len += sprintf (buffer + len, "wanPCI-C1T1E1"); - break; + seq_puts(m, "Board Type: "); + switch (bip->brd_id) { + case SBE_BOARD_ID(PCI_VENDOR_ID_SBE, PCI_DEVICE_ID_WANPMC_C1T3): + seq_puts(m, "wanPMC-C1T3"); + break; + case SBE_BOARD_ID(PCI_VENDOR_ID_SBE, PCI_DEVICE_ID_WANPTMC_256T3_E1): + seq_puts(m, "wanPTMC-256T3 "); + break; + case SBE_BOARD_ID(PCI_VENDOR_ID_SBE, PCI_DEVICE_ID_WANPTMC_256T3_T1): + seq_puts(m, "wanPTMC-256T3 "); + break; + case SBE_BOARD_ID(PCI_VENDOR_ID_SBE, PCI_DEVICE_ID_WANPTMC_C24TE1): + seq_puts(m, "wanPTMC-C24TE1"); + break; - default: - len += sprintf (buffer + len, "unknown"); - break; - } - len += sprintf (buffer + len, " [%08X]\n", bip->brd_id); + case SBE_BOARD_ID(PCI_VENDOR_ID_SBE, PCI_DEVICE_ID_WANPMC_C4T1E1): + case SBE_BOARD_ID(PCI_VENDOR_ID_SBE, PCI_DEVICE_ID_WANPMC_C4T1E1_L): + seq_puts(m, "wanPMC-C4T1E1"); + break; + case SBE_BOARD_ID(PCI_VENDOR_ID_SBE, PCI_DEVICE_ID_WANPMC_C2T1E1): + case SBE_BOARD_ID(PCI_VENDOR_ID_SBE, PCI_DEVICE_ID_WANPMC_C2T1E1_L): + seq_puts(m, "wanPMC-C2T1E1"); + break; + case SBE_BOARD_ID(PCI_VENDOR_ID_SBE, PCI_DEVICE_ID_WANPMC_C1T1E1): + case SBE_BOARD_ID(PCI_VENDOR_ID_SBE, PCI_DEVICE_ID_WANPMC_C1T1E1_L): + seq_puts(m, "wanPMC-C1T1E1"); + break; - len += sprintf (buffer + len, "Board Number: %d\n", bip->brdno); - len += sprintf (buffer + len, "Hardware ID: 0x%02X\n", ci->hdw_bid); - len += sprintf (buffer + len, "Board SN: %06X\n", bip->brd_sn); - len += sprintf(buffer + len, "Board MAC: %pMF\n", - bip->brd_mac_addr); - len += sprintf (buffer + len, "Ports: %d\n", ci->max_port); - len += sprintf (buffer + len, "Channels: %d\n", bip->brd_chan_cnt); + case SBE_BOARD_ID(PCI_VENDOR_ID_SBE, PCI_DEVICE_ID_WANPCI_C4T1E1): + seq_puts(m, "wanPCI-C4T1E1"); + break; + case SBE_BOARD_ID(PCI_VENDOR_ID_SBE, PCI_DEVICE_ID_WANPCI_C2T1E1): + seq_puts(m, "wanPCI-C2T1E1"); + break; + case SBE_BOARD_ID(PCI_VENDOR_ID_SBE, PCI_DEVICE_ID_WANPCI_C1T1E1): + seq_puts(m, "wanPCI-C1T1E1"); + break; + + default: + seq_puts(m, "unknown"); + break; + } + + seq_printf(m, " [%08X]\n", bip->brd_id); + + seq_printf(m, "Board Number: %d\n", bip->brdno); + seq_printf(m, "Hardware ID: 0x%02X\n", ci->hdw_bid); + seq_printf(m, "Board SN: %06X\n", bip->brd_sn); + seq_printf(m, "Board MAC: %pMF\n", bip->brd_mac_addr); + seq_printf(m, "Ports: %d\n", ci->max_port); + seq_printf(m, "Channels: %d\n", bip->brd_chan_cnt); #if 1 - len += sprintf (buffer + len, "Interface: %s -> %s\n", - (char *) &bip->first_iname, (char *) &bip->last_iname); + seq_printf(m, "Interface: %s -> %s\n", + bip->first_iname, bip->last_iname); #else - len += sprintf (buffer + len, "Interface: 1st %p lst %p\n", - (char *) &bip->first_iname, (char *) &bip->last_iname); + seq_printf(m, "Interface: 1st %p lst %p\n", + bip->first_iname, bip->last_iname); #endif - switch (bip->brd_pci_speed) - { - case BINFO_PCI_SPEED_33: - spd = "33Mhz"; - break; - case BINFO_PCI_SPEED_66: - spd = "66Mhz"; - break; - default: - spd = ""; - break; - } - len += sprintf (buffer + len, "PCI Bus Speed: %s\n", spd); - len += sprintf (buffer + len, "Release: %s\n", ci->release); + switch (bip->brd_pci_speed) { + case BINFO_PCI_SPEED_33: + spd = "33Mhz"; + break; + case BINFO_PCI_SPEED_66: + spd = "66Mhz"; + break; + default: + spd = ""; + break; + } + seq_printf(m, "PCI Bus Speed: %s\n", spd); + seq_printf(m, "Release: %s\n", ci->release); #ifdef SBE_PMCC4_ENABLE - { - extern int cxt1e1_max_mru; + { + extern int cxt1e1_max_mru; #if 0 - extern int max_chans_used; - extern int cxt1e1_max_mtu; + extern int max_chans_used; + extern int cxt1e1_max_mtu; #endif - extern int max_rxdesc_used, max_txdesc_used; + extern int max_rxdesc_used, max_txdesc_used; - len += sprintf (buffer + len, "\ncxt1e1_max_mru: %d\n", cxt1e1_max_mru); + seq_printf(m, "\ncxt1e1_max_mru: %d\n", cxt1e1_max_mru); #if 0 - len += sprintf (buffer + len, "\nmax_chans_used: %d\n", max_chans_used); - len += sprintf (buffer + len, "cxt1e1_max_mtu: %d\n", cxt1e1_max_mtu); + seq_printf(m, "\nmax_chans_used: %d\n", max_chans_used); + seq_printf(m, "cxt1e1_max_mtu: %d\n", cxt1e1_max_mtu); #endif - len += sprintf (buffer + len, "max_rxdesc_used: %d\n", max_rxdesc_used); - len += sprintf (buffer + len, "max_txdesc_used: %d\n", max_txdesc_used); - } + seq_printf(m, "max_rxdesc_used: %d\n", max_rxdesc_used); + seq_printf(m, "max_txdesc_used: %d\n", max_txdesc_used); + } #endif - OS_kfree (bip); /* cleanup */ + kfree(bip); - /*** - * How to be a proc read function - * ------------------------------ - * Prototype: - * int f(char *buffer, char **start, off_t offset, - * int count, int *peof, void *dat) - * - * Assume that the buffer is "count" bytes in size. - * - * If you know you have supplied all the data you - * have, set *peof. - * - * You have three ways to return data: - * 0) Leave *start = NULL. (This is the default.) - * Put the data of the requested offset at that - * offset within the buffer. Return the number (n) - * of bytes there are from the beginning of the - * buffer up to the last byte of data. If the - * number of supplied bytes (= n - offset) is - * greater than zero and you didn't signal eof - * and the reader is prepared to take more data - * you will be called again with the requested - * offset advanced by the number of bytes - * absorbed. This interface is useful for files - * no larger than the buffer. - * 1) Set *start = an unsigned long value less than - * the buffer address but greater than zero. - * Put the data of the requested offset at the - * beginning of the buffer. Return the number of - * bytes of data placed there. If this number is - * greater than zero and you didn't signal eof - * and the reader is prepared to take more data - * you will be called again with the requested - * offset advanced by *start. This interface is - * useful when you have a large file consisting - * of a series of blocks which you want to count - * and return as wholes. - * (Hack by Paul.Russell@rustcorp.com.au) - * 2) Set *start = an address within the buffer. - * Put the data of the requested offset at *start. - * Return the number of bytes of data placed there. - * If this number is greater than zero and you - * didn't signal eof and the reader is prepared to - * take more data you will be called again with the - * requested offset advanced by the number of bytes - * absorbed. - */ - -#if 1 - /* #4 - interpretation of above = set EOF, return len */ - *eof = 1; -#endif - -#if 0 - /* - * #1 - from net/wireless/atmel.c RLD NOTE -there's something wrong with - * this plagarized code which results in this routine being called TWICE. - * The second call returns ZERO, resulting in hidden failure, but at - * least only a single message set is being displayed. - */ - if (len <= offset + length) - *eof = 1; - *start = buffer + offset; - len -= offset; - if (len > length) - len = length; - if (len < 0) - len = 0; -#endif - -#if 0 /* #2 from net/tokenring/olympic.c + - * lanstreamer.c */ - { - off_t begin = 0; - int size = 0; - off_t pos = 0; - - size = len; - pos = begin + size; - if (pos < offset) - { - len = 0; - begin = pos; - } - *start = buffer + (offset - begin); /* Start of wanted data */ - len -= (offset - begin); /* Start slop */ - if (len > length) - len = length; /* Ending slop */ - } -#endif - -#if 0 /* #3 from - * char/ftape/lowlevel/ftape-proc.c */ - len = strlen (buffer); - *start = NULL; - if (offset + length >= len) - *eof = 1; - else - *eof = 0; -#endif - -#if 0 - pr_info(">> proc_fs: returned len = %d., start %p\n", len, start); /* RLD DEBUG */ -#endif - -/*** - using NONE: returns = 314.314.314. - using #1 : returns = 314, 0. - using #2 : returns = 314, 0, 0. - using #3 : returns = 314, 314. - using #4 : returns = 314, 314. -***/ - - return len; + pr_devel(">> proc_fs: finished\n"); + return 0; } -/* initialize the /proc subsystem for the specific SBE driver */ - -int __init -sbecom_proc_brd_init (ci_t * ci) +/* + * seq_file wrappers for procfile show routines. + */ +static int sbecom_proc_open(struct inode *inode, struct file *file) { - struct proc_dir_entry *e; - char dir[7 + SBE_IFACETMPL_SIZE + 1]; + return single_open(file, sbecom_proc_get_sbe_info, PDE_DATA(inode)); +} - /* create a directory in the root procfs */ - snprintf(dir, sizeof(dir), "driver/%s", ci->devname); - ci->dir_dev = proc_mkdir(dir, NULL); - if (!ci->dir_dev) - { - pr_err("Unable to create directory /proc/driver/%s\n", ci->devname); - goto fail; - } - e = create_proc_read_entry ("info", S_IFREG | S_IRUGO, - ci->dir_dev, sbecom_proc_get_sbe_info, ci); - if (!e) - { - pr_err("Unable to create entry /proc/driver/%s/info\n", ci->devname); - goto fail; - } - return 0; +static const struct file_operations sbecom_proc_fops = { + .open = sbecom_proc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + +/* + * Initialize the /proc subsystem for the specific SBE driver + */ +int __init sbecom_proc_brd_init(ci_t *ci) +{ + char dir[7 + SBE_IFACETMPL_SIZE + 1]; + + snprintf(dir, sizeof(dir), "driver/%s", ci->devname); + ci->dir_dev = proc_mkdir(dir, NULL); + if (!ci->dir_dev) { + pr_err("Unable to create directory /proc/driver/%s\n", ci->devname); + goto fail; + } + + if (!proc_create_data("info", S_IFREG | S_IRUGO, ci->dir_dev, + &sbecom_proc_fops, ci)) { + pr_err("Unable to create entry /proc/driver/%s/info\n", ci->devname); + goto fail; + } + return 0; fail: - sbecom_proc_brd_cleanup (ci); - return 1; + sbecom_proc_brd_cleanup(ci); + return 1; } - -#else /*** ! CONFIG_PROC_FS ***/ - -/* stubbed off dummy routines */ - -void -sbecom_proc_brd_cleanup (ci_t * ci) -{ -} - -int __init -sbecom_proc_brd_init (ci_t * ci) -{ - return 0; -} - -#endif /*** CONFIG_PROC_FS ***/ - - -/*** End-of-File ***/ diff --git a/drivers/staging/cxt1e1/sbeproc.h b/drivers/staging/cxt1e1/sbeproc.h index e82be6afd1e8..e5c072cf1952 100644 --- a/drivers/staging/cxt1e1/sbeproc.h +++ b/drivers/staging/cxt1e1/sbeproc.h @@ -23,10 +23,20 @@ #ifdef CONFIG_PROC_FS -#ifdef __KERNEL__ void sbecom_proc_brd_cleanup (ci_t *); int __init sbecom_proc_brd_init (ci_t *); -#endif /*** __KERNEL__ ***/ +#else + +static inline void sbecom_proc_brd_cleanup(ci_t * ci) +{ +} + +static inline int __init sbecom_proc_brd_init(ci_t * ci) +{ + return 0; +} + #endif /*** CONFIG_PROC_FS ***/ + #endif /*** _INC_SBEPROC_H_ ***/ From f1cc0444ab2f0e1b254490f497363e3b0c9bcd56 Mon Sep 17 00:00:00 2001 From: David Howells Date: Mon, 8 Apr 2013 23:26:53 +0100 Subject: [PATCH 158/204] wlags49_h2: Don't use create_proc_read_entry() Don't use create_proc_read_entry() as that is deprecated, but rather use proc_create_data() and seq_file instead. Signed-off-by: David Howells cc: Henk de Groot cc: Bartlomiej Zolnierkiewicz cc: Greg Kroah-Hartman cc: linux-wireless@vger.kernel.org Signed-off-by: Al Viro --- drivers/staging/wlags49_h2/wl_main.c | 344 ++++++++++++++------------- 1 file changed, 173 insertions(+), 171 deletions(-) diff --git a/drivers/staging/wlags49_h2/wl_main.c b/drivers/staging/wlags49_h2/wl_main.c index 174c41af4847..c4264e8c877d 100644 --- a/drivers/staging/wlags49_h2/wl_main.c +++ b/drivers/staging/wlags49_h2/wl_main.c @@ -73,6 +73,7 @@ #include #include +#include #include #include // #include @@ -144,10 +145,24 @@ void wl_isr_handler( unsigned long p ); #if 0 //SCULL_USE_PROC /* don't waste space if unused */ -//int scull_read_procmem(char *buf, char **start, off_t offset, int len, int unused); -int scull_read_procmem(char *buf, char **start, off_t offset, int len, int *eof, void *data ); +static int scull_read_procmem(struct seq_file *m, void *v); static int write_int(struct file *file, const char *buffer, unsigned long count, void *data); +/* + * seq_file wrappers for procfile show routines. + */ +static int scull_read_procmem_open(struct inode *inode, struct file *file) +{ + return single_open(file, scull_read_procmem, PDE_DATA(inode)); +} + +static const struct file_operations scull_read_procmem_fops = { + .open = scull_read_procmem_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + #endif /* SCULL_USE_PROC */ /******************************************************************************* @@ -907,7 +922,7 @@ int wl_insert( struct net_device *dev ) } #if 0 //SCULL_USE_PROC /* don't waste space if unused */ - create_proc_read_entry( "wlags", 0, NULL, scull_read_procmem, dev ); + proc_create_data( "wlags", 0, NULL, &scull_read_procmem_fops, dev ); proc_mkdir("driver/wlags49", 0); #endif /* SCULL_USE_PROC */ @@ -2095,7 +2110,7 @@ static void __exit wl_module_exit( void ) wl_adapter_cleanup_module( ); #if 0 //SCULL_USE_PROC /* don't waste space if unused */ - remove_proc_entry( "wlags", NULL ); //;?why so a-symmetric compared to location of create_proc_read_entry + remove_proc_entry( "wlags", NULL ); //;?why so a-symmetric compared to location of proc_create_data #endif DBG_LEAVE( DbgInfo ); @@ -3529,229 +3544,215 @@ void wl_wds_netdev_deregister( struct wl_private *lp ) /* * The proc filesystem: function to read and entry */ -int printf_hcf_16( char *s, char *buf, hcf_16* p, int n ); -int printf_hcf_16( char *s, char *buf, hcf_16* p, int n ) { - -int i, len; - - len = sprintf(buf, "%s", s ); - while ( len < 20 ) len += sprintf(buf+len, " " ); - len += sprintf(buf+len,": " ); - for ( i = 0; i < n; i++ ) { - if ( len % 80 > 75 ) { - len += sprintf(buf+len,"\n" ); - } - len += sprintf(buf+len,"%04X ", p[i] ); - } - len += sprintf(buf+len,"\n" ); - return len; -} // printf_hcf_16 - -int printf_hcf_8( char *s, char *buf, hcf_8* p, int n ); -int printf_hcf_8( char *s, char *buf, hcf_8* p, int n ) { - -int i, len; - - len = sprintf(buf, "%s", s ); - while ( len < 20 ) len += sprintf(buf+len, " " ); - len += sprintf(buf+len,": " ); - for ( i = 0; i <= n; i++ ) { - if ( len % 80 > 77 ) { - len += sprintf(buf+len,"\n" ); - } - len += sprintf(buf+len,"%02X ", p[i] ); - } - len += sprintf(buf+len,"\n" ); - return len; -} // printf_hcf8 - -int printf_strct( char *s, char *buf, hcf_16* p ); -int printf_strct( char *s, char *buf, hcf_16* p ) { - -int i, len; - - len = sprintf(buf, "%s", s ); - while ( len < 20 ) len += sprintf(buf+len, " " ); - len += sprintf(buf+len,": " ); - for ( i = 0; i <= *p; i++ ) { - if ( len % 80 > 75 ) { - len += sprintf(buf+len,"\n" ); - } - len += sprintf(buf+len,"%04X ", p[i] ); - } - len += sprintf(buf+len,"\n" ); - return len; -} // printf_strct - -int scull_read_procmem(char *buf, char **start, off_t offset, int len, int *eof, void *data ) +static void printf_hcf_16(struct seq_file *m, const char *s, hcf_16 *p, int n) { - struct wl_private *lp = NULL; + int i, len; + + seq_printf(m, "%-20.20s: ", s); + len = 22; + + for (i = 0; i < n; i++) { + if (len % 80 > 75) + seq_putc(m, '\n'); + seq_printf(m, "%04X ", p[i]); + } + seq_putc(m, '\n'); +} + +static void printf_hcf_8(struct seq_file *m, const char *s, hcf_8 *p, int n) +{ + int i, len; + + seq_printf(m, "%-20.20s: ", s); + len = 22; + + for (i = 0; i <= n; i++) { + if (len % 80 > 77) + seq_putc(m, '\n'); + seq_printf(m, "%02X ", p[i]); + } + seq_putc(m, '\n'); +} + +static void printf_strct(struct seq_file *m, const char *s, hcf_16 *p) +{ + int i, len; + + seq_printf(m, "%-20.20s: ", s); + len = 22; + + for ( i = 0; i <= *p; i++ ) { + if (len % 80 > 75) + seq_putc(m, '\n'); + seq_printf(m,"%04X ", p[i]); + } + seq_putc(m, '\n'); +} + +int scull_read_procmem(struct seq_file *m, void *v) +{ + struct wl_private *lp = m->private; IFBP ifbp; CFG_HERMES_TALLIES_STRCT *p; - #define LIMIT (PAGE_SIZE-80) /* don't print any more after this size */ - - len=0; - - lp = ((struct net_device *)data)->priv; if (lp == NULL) { - len += sprintf(buf+len,"No wl_private in scull_read_procmem\n" ); + seq_puts(m, "No wl_private in scull_read_procmem\n" ); } else if ( lp->wlags49_type == 0 ){ - ifbp = &lp->hcfCtx; - len += sprintf(buf+len,"Magic: 0x%04X\n", ifbp->IFB_Magic ); - len += sprintf(buf+len,"IOBase: 0x%04X\n", ifbp->IFB_IOBase ); - len += sprintf(buf+len,"LinkStat: 0x%04X\n", ifbp->IFB_LinkStat ); - len += sprintf(buf+len,"DSLinkStat: 0x%04X\n", ifbp->IFB_DSLinkStat ); - len += sprintf(buf+len,"TickIni: 0x%08lX\n", ifbp->IFB_TickIni ); - len += sprintf(buf+len,"TickCnt: 0x%04X\n", ifbp->IFB_TickCnt ); - len += sprintf(buf+len,"IntOffCnt: 0x%04X\n", ifbp->IFB_IntOffCnt ); - len += printf_hcf_16( "IFB_FWIdentity", &buf[len], - &ifbp->IFB_FWIdentity.len, ifbp->IFB_FWIdentity.len + 1 ); + ifbp = &lp->hcfCtx; + seq_printf(m, "Magic: 0x%04X\n", ifbp->IFB_Magic ); + seq_printf(m, "IOBase: 0x%04X\n", ifbp->IFB_IOBase ); + seq_printf(m, "LinkStat: 0x%04X\n", ifbp->IFB_LinkStat ); + seq_printf(m, "DSLinkStat: 0x%04X\n", ifbp->IFB_DSLinkStat ); + seq_printf(m, "TickIni: 0x%08lX\n", ifbp->IFB_TickIni ); + seq_printf(m, "TickCnt: 0x%04X\n", ifbp->IFB_TickCnt ); + seq_printf(m, "IntOffCnt: 0x%04X\n", ifbp->IFB_IntOffCnt ); + printf_hcf_16(m, "IFB_FWIdentity", + &ifbp->IFB_FWIdentity.len, ifbp->IFB_FWIdentity.len + 1 ); } else if ( lp->wlags49_type == 1 ) { - len += sprintf(buf+len,"Channel: 0x%04X\n", lp->Channel ); -/****** len += sprintf(buf+len,"slock: %d\n", lp->slock ); */ + seq_printf(m, "Channel: 0x%04X\n", lp->Channel ); +/****** seq_printf(m, "slock: %d\n", lp->slock ); */ //x struct tq_struct "task: 0x%04X\n", lp->task ); //x struct net_device_stats "stats: 0x%04X\n", lp->stats ); #ifdef WIRELESS_EXT //x struct iw_statistics "wstats: 0x%04X\n", lp->wstats ); -//x len += sprintf(buf+len,"spy_number: 0x%04X\n", lp->spy_number ); +//x seq_printf(m, "spy_number: 0x%04X\n", lp->spy_number ); //x u_char spy_address[IW_MAX_SPY][ETH_ALEN]; //x struct iw_quality spy_stat[IW_MAX_SPY]; #endif // WIRELESS_EXT - len += sprintf(buf+len,"IFB: 0x%p\n", &lp->hcfCtx ); - len += sprintf(buf+len,"flags: %#.8lX\n", lp->flags ); //;?use this format from now on - len += sprintf(buf+len,"DebugFlag(wl_private) 0x%04X\n", lp->DebugFlag ); + seq_printf(m, "IFB: 0x%p\n", &lp->hcfCtx ); + seq_printf(m, "flags: %#.8lX\n", lp->flags ); //;?use this format from now on + seq_printf(m, "DebugFlag(wl_private) 0x%04X\n", lp->DebugFlag ); #if DBG - len += sprintf(buf+len,"DebugFlag (DbgInfo): 0x%08lX\n", DbgInfo->DebugFlag ); + seq_printf(m, "DebugFlag (DbgInfo): 0x%08lX\n", DbgInfo->DebugFlag ); #endif // DBG - len += sprintf(buf+len,"is_registered: 0x%04X\n", lp->is_registered ); + seq_printf(m, "is_registered: 0x%04X\n", lp->is_registered ); //x CFG_DRV_INFO_STRCT "driverInfo: 0x%04X\n", lp->driverInfo ); - len += printf_strct( "driverInfo", &buf[len], (hcf_16*)&lp->driverInfo ); + printf_strct( m, "driverInfo", (hcf_16*)&lp->driverInfo ); //x CFG_IDENTITY_STRCT "driverIdentity: 0x%04X\n", lp->driverIdentity ); - len += printf_strct( "driverIdentity", &buf[len], (hcf_16*)&lp->driverIdentity ); + printf_strct( m, "driverIdentity", (hcf_16*)&lp->driverIdentity ); //x CFG_FW_IDENTITY_STRCT "StationIdentity: 0x%04X\n", lp->StationIdentity ); - len += printf_strct( "StationIdentity", &buf[len], (hcf_16*)&lp->StationIdentity ); + printf_strct( m, "StationIdentity", (hcf_16*)&lp->StationIdentity ); //x CFG_PRI_IDENTITY_STRCT "PrimaryIdentity: 0x%04X\n", lp->PrimaryIdentity ); - len += printf_strct( "PrimaryIdentity", &buf[len], (hcf_16*)&lp->hcfCtx.IFB_PRIIdentity ); - len += printf_strct( "PrimarySupplier", &buf[len], (hcf_16*)&lp->hcfCtx.IFB_PRISup ); + printf_strct( m, "PrimaryIdentity", (hcf_16*)&lp->hcfCtx.IFB_PRIIdentity ); + printf_strct( m, "PrimarySupplier", (hcf_16*)&lp->hcfCtx.IFB_PRISup ); //x CFG_PRI_IDENTITY_STRCT "NICIdentity: 0x%04X\n", lp->NICIdentity ); - len += printf_strct( "NICIdentity", &buf[len], (hcf_16*)&lp->NICIdentity ); + printf_strct( m, "NICIdentity", (hcf_16*)&lp->NICIdentity ); //x ltv_t "ltvRecord: 0x%04X\n", lp->ltvRecord ); - len += sprintf(buf+len,"txBytes: 0x%08lX\n", lp->txBytes ); - len += sprintf(buf+len,"maxPort: 0x%04X\n", lp->maxPort ); /* 0 for STA, 6 for AP */ - /* Elements used for async notification from hardware */ + seq_printf(m, "txBytes: 0x%08lX\n", lp->txBytes ); + seq_printf(m, "maxPort: 0x%04X\n", lp->maxPort ); /* 0 for STA, 6 for AP */ + /* Elements used for async notification from hardware */ //x RID_LOG_STRCT RidList[10]; //x ltv_t "updatedRecord: 0x%04X\n", lp->updatedRecord ); //x PROBE_RESP "ProbeResp: 0x%04X\n", lp->ProbeResp ); //x ASSOC_STATUS_STRCT "assoc_stat: 0x%04X\n", lp->assoc_stat ); //x SECURITY_STATUS_STRCT "sec_stat: 0x%04X\n", lp->sec_stat ); //x u_char lookAheadBuf[WVLAN_MAX_LOOKAHEAD]; - len += sprintf(buf+len,"PortType: 0x%04X\n", lp->PortType ); // 1 - 3 (1 [Normal] | 3 [AdHoc]) - len += sprintf(buf+len,"Channel: 0x%04X\n", lp->Channel ); // 0 - 14 (0) + seq_printf(m, "PortType: 0x%04X\n", lp->PortType ); // 1 - 3 (1 [Normal] | 3 [AdHoc]) + seq_printf(m, "Channel: 0x%04X\n", lp->Channel ); // 0 - 14 (0) //x hcf_16 TxRateControl[2]; - len += sprintf(buf+len,"TxRateControl[2]: 0x%04X 0x%04X\n", - lp->TxRateControl[0], lp->TxRateControl[1] ); - len += sprintf(buf+len,"DistanceBetweenAPs: 0x%04X\n", lp->DistanceBetweenAPs ); // 1 - 3 (1) - len += sprintf(buf+len,"RTSThreshold: 0x%04X\n", lp->RTSThreshold ); // 0 - 2347 (2347) - len += sprintf(buf+len,"PMEnabled: 0x%04X\n", lp->PMEnabled ); // 0 - 2, 8001 - 8002 (0) - len += sprintf(buf+len,"MicrowaveRobustness: 0x%04X\n", lp->MicrowaveRobustness );// 0 - 1 (0) - len += sprintf(buf+len,"CreateIBSS: 0x%04X\n", lp->CreateIBSS ); // 0 - 1 (0) - len += sprintf(buf+len,"MulticastReceive: 0x%04X\n", lp->MulticastReceive ); // 0 - 1 (1) - len += sprintf(buf+len,"MaxSleepDuration: 0x%04X\n", lp->MaxSleepDuration ); // 0 - 65535 (100) + seq_printf(m, "TxRateControl[2]: 0x%04X 0x%04X\n", + lp->TxRateControl[0], lp->TxRateControl[1] ); + seq_printf(m, "DistanceBetweenAPs: 0x%04X\n", lp->DistanceBetweenAPs ); // 1 - 3 (1) + seq_printf(m, "RTSThreshold: 0x%04X\n", lp->RTSThreshold ); // 0 - 2347 (2347) + seq_printf(m, "PMEnabled: 0x%04X\n", lp->PMEnabled ); // 0 - 2, 8001 - 8002 (0) + seq_printf(m, "MicrowaveRobustness: 0x%04X\n", lp->MicrowaveRobustness );// 0 - 1 (0) + seq_printf(m, "CreateIBSS: 0x%04X\n", lp->CreateIBSS ); // 0 - 1 (0) + seq_printf(m, "MulticastReceive: 0x%04X\n", lp->MulticastReceive ); // 0 - 1 (1) + seq_printf(m, "MaxSleepDuration: 0x%04X\n", lp->MaxSleepDuration ); // 0 - 65535 (100) //x hcf_8 MACAddress[ETH_ALEN]; - len += printf_hcf_8( "MACAddress", &buf[len], lp->MACAddress, ETH_ALEN ); + printf_hcf_8(m, "MACAddress", lp->MACAddress, ETH_ALEN ); //x char NetworkName[HCF_MAX_NAME_LEN+1]; - len += sprintf(buf+len,"NetworkName: %.32s\n", lp->NetworkName ); + seq_printf(m, "NetworkName: %.32s\n", lp->NetworkName ); //x char StationName[HCF_MAX_NAME_LEN+1]; - len += sprintf(buf+len,"EnableEncryption: 0x%04X\n", lp->EnableEncryption ); // 0 - 1 (0) + seq_printf(m, "EnableEncryption: 0x%04X\n", lp->EnableEncryption ); // 0 - 1 (0) //x char Key1[MAX_KEY_LEN+1]; - len += printf_hcf_8( "Key1", &buf[len], lp->Key1, MAX_KEY_LEN ); + printf_hcf_8( m, "Key1", lp->Key1, MAX_KEY_LEN ); //x char Key2[MAX_KEY_LEN+1]; //x char Key3[MAX_KEY_LEN+1]; //x char Key4[MAX_KEY_LEN+1]; - len += sprintf(buf+len,"TransmitKeyID: 0x%04X\n", lp->TransmitKeyID ); // 1 - 4 (1) + seq_printf(m, "TransmitKeyID: 0x%04X\n", lp->TransmitKeyID ); // 1 - 4 (1) //x CFG_DEFAULT_KEYS_STRCT "DefaultKeys: 0x%04X\n", lp->DefaultKeys ); //x u_char mailbox[MB_SIZE]; //x char szEncryption[MAX_ENC_LEN]; - len += sprintf(buf+len,"driverEnable: 0x%04X\n", lp->driverEnable ); - len += sprintf(buf+len,"wolasEnable: 0x%04X\n", lp->wolasEnable ); - len += sprintf(buf+len,"atimWindow: 0x%04X\n", lp->atimWindow ); - len += sprintf(buf+len,"holdoverDuration: 0x%04X\n", lp->holdoverDuration ); + seq_printf(m, "driverEnable: 0x%04X\n", lp->driverEnable ); + seq_printf(m, "wolasEnable: 0x%04X\n", lp->wolasEnable ); + seq_printf(m, "atimWindow: 0x%04X\n", lp->atimWindow ); + seq_printf(m, "holdoverDuration: 0x%04X\n", lp->holdoverDuration ); //x hcf_16 MulticastRate[2]; - len += sprintf(buf+len,"authentication: 0x%04X\n", lp->authentication ); // is this AP specific? - len += sprintf(buf+len,"promiscuousMode: 0x%04X\n", lp->promiscuousMode ); - len += sprintf(buf+len,"DownloadFirmware: 0x%04X\n", lp->DownloadFirmware ); // 0 - 2 (0 [None] | 1 [STA] | 2 [AP]) - len += sprintf(buf+len,"AuthKeyMgmtSuite: 0x%04X\n", lp->AuthKeyMgmtSuite ); - len += sprintf(buf+len,"loadBalancing: 0x%04X\n", lp->loadBalancing ); - len += sprintf(buf+len,"mediumDistribution: 0x%04X\n", lp->mediumDistribution ); - len += sprintf(buf+len,"txPowLevel: 0x%04X\n", lp->txPowLevel ); -// len += sprintf(buf+len,"shortRetryLimit: 0x%04X\n", lp->shortRetryLimit ); -// len += sprintf(buf+len,"longRetryLimit: 0x%04X\n", lp->longRetryLimit ); + seq_printf(m, "authentication: 0x%04X\n", lp->authentication ); // is this AP specific? + seq_printf(m, "promiscuousMode: 0x%04X\n", lp->promiscuousMode ); + seq_printf(m, "DownloadFirmware: 0x%04X\n", lp->DownloadFirmware ); // 0 - 2 (0 [None] | 1 [STA] | 2 [AP]) + seq_printf(m, "AuthKeyMgmtSuite: 0x%04X\n", lp->AuthKeyMgmtSuite ); + seq_printf(m, "loadBalancing: 0x%04X\n", lp->loadBalancing ); + seq_printf(m, "mediumDistribution: 0x%04X\n", lp->mediumDistribution ); + seq_printf(m, "txPowLevel: 0x%04X\n", lp->txPowLevel ); +// seq_printf(m, "shortRetryLimit: 0x%04X\n", lp->shortRetryLimit ); +// seq_printf(m, "longRetryLimit: 0x%04X\n", lp->longRetryLimit ); //x hcf_16 srsc[2]; //x hcf_16 brsc[2]; - len += sprintf(buf+len,"connectionControl: 0x%04X\n", lp->connectionControl ); + seq_printf(m, "connectionControl: 0x%04X\n", lp->connectionControl ); //x //hcf_16 probeDataRates[2]; - len += sprintf(buf+len,"ownBeaconInterval: 0x%04X\n", lp->ownBeaconInterval ); - len += sprintf(buf+len,"coexistence: 0x%04X\n", lp->coexistence ); + seq_printf(m, "ownBeaconInterval: 0x%04X\n", lp->ownBeaconInterval ); + seq_printf(m, "coexistence: 0x%04X\n", lp->coexistence ); //x WVLAN_FRAME "txF: 0x%04X\n", lp->txF ); //x WVLAN_LFRAME txList[DEFAULT_NUM_TX_FRAMES]; //x struct list_head "txFree: 0x%04X\n", lp->txFree ); //x struct list_head txQ[WVLAN_MAX_TX_QUEUES]; - len += sprintf(buf+len,"netif_queue_on: 0x%04X\n", lp->netif_queue_on ); - len += sprintf(buf+len,"txQ_count: 0x%04X\n", lp->txQ_count ); + seq_printf(m, "netif_queue_on: 0x%04X\n", lp->netif_queue_on ); + seq_printf(m, "txQ_count: 0x%04X\n", lp->txQ_count ); //x DESC_STRCT "desc_rx: 0x%04X\n", lp->desc_rx ); //x DESC_STRCT "desc_tx: 0x%04X\n", lp->desc_tx ); //x WVLAN_PORT_STATE "portState: 0x%04X\n", lp->portState ); //x ScanResult "scan_results: 0x%04X\n", lp->scan_results ); //x ProbeResult "probe_results: 0x%04X\n", lp->probe_results ); - len += sprintf(buf+len,"probe_num_aps: 0x%04X\n", lp->probe_num_aps ); - len += sprintf(buf+len,"use_dma: 0x%04X\n", lp->use_dma ); + seq_printf(m, "probe_num_aps: 0x%04X\n", lp->probe_num_aps ); + seq_printf(m, "use_dma: 0x%04X\n", lp->use_dma ); //x DMA_STRCT "dma: 0x%04X\n", lp->dma ); #ifdef USE_RTS - len += sprintf(buf+len,"useRTS: 0x%04X\n", lp->useRTS ); + seq_printf(m, "useRTS: 0x%04X\n", lp->useRTS ); #endif // USE_RTS #if 1 //;? (HCF_TYPE) & HCF_TYPE_AP //;?should we restore this to allow smaller memory footprint //;?I guess not. This should be brought under Debug mode only - len += sprintf(buf+len,"DTIMPeriod: 0x%04X\n", lp->DTIMPeriod ); // 1 - 255 (1) - len += sprintf(buf+len,"multicastPMBuffering: 0x%04X\n", lp->multicastPMBuffering ); - len += sprintf(buf+len,"RejectAny: 0x%04X\n", lp->RejectAny ); // 0 - 1 (0) - len += sprintf(buf+len,"ExcludeUnencrypted: 0x%04X\n", lp->ExcludeUnencrypted ); // 0 - 1 (1) - len += sprintf(buf+len,"intraBSSRelay: 0x%04X\n", lp->intraBSSRelay ); - len += sprintf(buf+len,"wlags49_type: 0x%08lX\n", lp->wlags49_type ); + seq_printf(m, "DTIMPeriod: 0x%04X\n", lp->DTIMPeriod ); // 1 - 255 (1) + seq_printf(m, "multicastPMBuffering: 0x%04X\n", lp->multicastPMBuffering ); + seq_printf(m, "RejectAny: 0x%04X\n", lp->RejectAny ); // 0 - 1 (0) + seq_printf(m, "ExcludeUnencrypted: 0x%04X\n", lp->ExcludeUnencrypted ); // 0 - 1 (1) + seq_printf(m, "intraBSSRelay: 0x%04X\n", lp->intraBSSRelay ); + seq_printf(m, "wlags49_type: 0x%08lX\n", lp->wlags49_type ); #ifdef USE_WDS //x WVLAN_WDS_IF wds_port[NUM_WDS_PORTS]; #endif // USE_WDS #endif // HCF_AP } else if ( lp->wlags49_type == 2 ){ - len += sprintf(buf+len,"tallies to be added\n" ); + seq_printf(m, "tallies to be added\n" ); //Hermes Tallies (IFB substructure) { - p = &lp->hcfCtx.IFB_NIC_Tallies; - len += sprintf(buf+len,"TxUnicastFrames: %08lX\n", p->TxUnicastFrames ); - len += sprintf(buf+len,"TxMulticastFrames: %08lX\n", p->TxMulticastFrames ); - len += sprintf(buf+len,"TxFragments: %08lX\n", p->TxFragments ); - len += sprintf(buf+len,"TxUnicastOctets: %08lX\n", p->TxUnicastOctets ); - len += sprintf(buf+len,"TxMulticastOctets: %08lX\n", p->TxMulticastOctets ); - len += sprintf(buf+len,"TxDeferredTransmissions: %08lX\n", p->TxDeferredTransmissions ); - len += sprintf(buf+len,"TxSingleRetryFrames: %08lX\n", p->TxSingleRetryFrames ); - len += sprintf(buf+len,"TxMultipleRetryFrames: %08lX\n", p->TxMultipleRetryFrames ); - len += sprintf(buf+len,"TxRetryLimitExceeded: %08lX\n", p->TxRetryLimitExceeded ); - len += sprintf(buf+len,"TxDiscards: %08lX\n", p->TxDiscards ); - len += sprintf(buf+len,"RxUnicastFrames: %08lX\n", p->RxUnicastFrames ); - len += sprintf(buf+len,"RxMulticastFrames: %08lX\n", p->RxMulticastFrames ); - len += sprintf(buf+len,"RxFragments: %08lX\n", p->RxFragments ); - len += sprintf(buf+len,"RxUnicastOctets: %08lX\n", p->RxUnicastOctets ); - len += sprintf(buf+len,"RxMulticastOctets: %08lX\n", p->RxMulticastOctets ); - len += sprintf(buf+len,"RxFCSErrors: %08lX\n", p->RxFCSErrors ); - len += sprintf(buf+len,"RxDiscardsNoBuffer: %08lX\n", p->RxDiscardsNoBuffer ); - len += sprintf(buf+len,"TxDiscardsWrongSA: %08lX\n", p->TxDiscardsWrongSA ); - len += sprintf(buf+len,"RxWEPUndecryptable: %08lX\n", p->RxWEPUndecryptable ); - len += sprintf(buf+len,"RxMsgInMsgFragments: %08lX\n", p->RxMsgInMsgFragments ); - len += sprintf(buf+len,"RxMsgInBadMsgFragments: %08lX\n", p->RxMsgInBadMsgFragments ); - len += sprintf(buf+len,"RxDiscardsWEPICVError: %08lX\n", p->RxDiscardsWEPICVError ); - len += sprintf(buf+len,"RxDiscardsWEPExcluded: %08lX\n", p->RxDiscardsWEPExcluded ); + p = &lp->hcfCtx.IFB_NIC_Tallies; + seq_printf(m, "TxUnicastFrames: %08lX\n", p->TxUnicastFrames ); + seq_printf(m, "TxMulticastFrames: %08lX\n", p->TxMulticastFrames ); + seq_printf(m, "TxFragments: %08lX\n", p->TxFragments ); + seq_printf(m, "TxUnicastOctets: %08lX\n", p->TxUnicastOctets ); + seq_printf(m, "TxMulticastOctets: %08lX\n", p->TxMulticastOctets ); + seq_printf(m, "TxDeferredTransmissions: %08lX\n", p->TxDeferredTransmissions ); + seq_printf(m, "TxSingleRetryFrames: %08lX\n", p->TxSingleRetryFrames ); + seq_printf(m, "TxMultipleRetryFrames: %08lX\n", p->TxMultipleRetryFrames ); + seq_printf(m, "TxRetryLimitExceeded: %08lX\n", p->TxRetryLimitExceeded ); + seq_printf(m, "TxDiscards: %08lX\n", p->TxDiscards ); + seq_printf(m, "RxUnicastFrames: %08lX\n", p->RxUnicastFrames ); + seq_printf(m, "RxMulticastFrames: %08lX\n", p->RxMulticastFrames ); + seq_printf(m, "RxFragments: %08lX\n", p->RxFragments ); + seq_printf(m, "RxUnicastOctets: %08lX\n", p->RxUnicastOctets ); + seq_printf(m, "RxMulticastOctets: %08lX\n", p->RxMulticastOctets ); + seq_printf(m, "RxFCSErrors: %08lX\n", p->RxFCSErrors ); + seq_printf(m, "RxDiscardsNoBuffer: %08lX\n", p->RxDiscardsNoBuffer ); + seq_printf(m, "TxDiscardsWrongSA: %08lX\n", p->TxDiscardsWrongSA ); + seq_printf(m, "RxWEPUndecryptable: %08lX\n", p->RxWEPUndecryptable ); + seq_printf(m, "RxMsgInMsgFragments: %08lX\n", p->RxMsgInMsgFragments ); + seq_printf(m, "RxMsgInBadMsgFragments: %08lX\n", p->RxMsgInBadMsgFragments ); + seq_printf(m, "RxDiscardsWEPICVError: %08lX\n", p->RxDiscardsWEPICVError ); + seq_printf(m, "RxDiscardsWEPExcluded: %08lX\n", p->RxDiscardsWEPExcluded ); #if (HCF_EXT) & HCF_EXT_TALLIES_FW - //to be added ;? + //to be added ;? #endif // HCF_EXT_TALLIES_FW } else if ( lp->wlags49_type & 0x8000 ) { //;?kludgy but it is unclear to me were else to place this #if DBG @@ -3759,16 +3760,17 @@ int scull_read_procmem(char *buf, char **start, off_t offset, int len, int *eof, #endif // DBG lp->wlags49_type = 0; //default to IFB again ;? } else { - len += sprintf(buf+len,"unknown value for wlags49_type: 0x%08lX\n", lp->wlags49_type ); - len += sprintf(buf+len,"0x0000 - IFB\n" ); - len += sprintf(buf+len,"0x0001 - wl_private\n" ); - len += sprintf(buf+len,"0x0002 - Tallies\n" ); - len += sprintf(buf+len,"0x8xxx - Change debufflag\n" ); - len += sprintf(buf+len,"ERROR 0001\nWARNING 0002\nNOTICE 0004\nTRACE 0008\n" ); - len += sprintf(buf+len,"VERBOSE 0010\nPARAM 0020\nBREAK 0040\nRX 0100\n" ); - len += sprintf(buf+len,"TX 0200\nDS 0400\n" ); + seq_printf(m, "unknown value for wlags49_type: 0x%08lX\n", lp->wlags49_type ); + seq_puts(m, + "0x0000 - IFB\n" + "0x0001 - wl_private\n" + "0x0002 - Tallies\n" + "0x8xxx - Change debufflag\n" + "ERROR 0001\nWARNING 0002\nNOTICE 0004\nTRACE 0008\n" + "VERBOSE 0010\nPARAM 0020\nBREAK 0040\nRX 0100\n" + "TX 0200\nDS 0400\n"); } - return len; + return 0; } // scull_read_procmem static int write_int(struct file *file, const char *buffer, unsigned long count, void *data) From 96c7a22ebd2c919ed8fb93bb7c02b60aac099768 Mon Sep 17 00:00:00 2001 From: David Howells Date: Wed, 10 Apr 2013 11:51:21 +0100 Subject: [PATCH 159/204] goku_udc: Don't use create_proc_read_entry() Don't use create_proc_read_entry() as that is deprecated, but rather use proc_create_data() and seq_file instead. Signed-off-by: David Howells cc: Felipe Balbi cc: Greg Kroah-Hartman cc: linux-usb@vger.kernel.org Signed-off-by: Al Viro --- drivers/usb/gadget/goku_udc.c | 89 +++++++++++++++-------------------- 1 file changed, 39 insertions(+), 50 deletions(-) diff --git a/drivers/usb/gadget/goku_udc.c b/drivers/usb/gadget/goku_udc.c index 85742d4c67df..57a547049df5 100644 --- a/drivers/usb/gadget/goku_udc.c +++ b/drivers/usb/gadget/goku_udc.c @@ -35,6 +35,7 @@ #include #include #include +#include #include #include #include @@ -1008,7 +1009,7 @@ static const struct usb_gadget_ops goku_ops = { /*-------------------------------------------------------------------------*/ -static inline char *dmastr(void) +static inline const char *dmastr(void) { if (use_dma == 0) return "(dma disabled)"; @@ -1025,13 +1026,10 @@ static const char proc_node_name [] = "driver/udc"; #define FOURBITS "%s%s%s%s" #define EIGHTBITS FOURBITS FOURBITS -static void -dump_intmask(const char *label, u32 mask, char **next, unsigned *size) +static void dump_intmask(struct seq_file *m, const char *label, u32 mask) { - int t; - /* int_status is the same format ... */ - t = scnprintf(*next, *size, + seq_printf(m, "%s %05X =" FOURBITS EIGHTBITS EIGHTBITS "\n", label, mask, (mask & INT_PWRDETECT) ? " power" : "", @@ -1058,33 +1056,23 @@ dump_intmask(const char *label, u32 mask, char **next, unsigned *size) (mask & INT_ENDPOINT0) ? " ep0" : "", (mask & INT_USBRESET) ? " reset" : "", (mask & INT_SUSPEND) ? " suspend" : ""); - *size -= t; - *next += t; } -static int -udc_proc_read(char *buffer, char **start, off_t off, int count, - int *eof, void *_dev) +static int udc_proc_read(struct seq_file *m, void *v) { - char *buf = buffer; - struct goku_udc *dev = _dev; + struct goku_udc *dev = m->private; struct goku_udc_regs __iomem *regs = dev->regs; - char *next = buf; - unsigned size = count; unsigned long flags; - int i, t, is_usb_connected; + int i, is_usb_connected; u32 tmp; - if (off != 0) - return 0; - local_irq_save(flags); /* basic device status */ tmp = readl(®s->power_detect); is_usb_connected = tmp & PW_DETECT; - t = scnprintf(next, size, + seq_printf(m, "%s - %s\n" "%s version: %s %s\n" "Gadget driver: %s\n" @@ -1096,7 +1084,7 @@ udc_proc_read(char *buffer, char **start, off_t off, int count, is_usb_connected ? ((tmp & PW_PULLUP) ? "full speed" : "powered") : "disconnected", - ({char *state; + ({const char *state; switch(dev->ep0state){ case EP0_DISCONNECT: state = "ep0_disconnect"; break; case EP0_IDLE: state = "ep0_idle"; break; @@ -1108,27 +1096,24 @@ udc_proc_read(char *buffer, char **start, off_t off, int count, default: state = "ep0_?"; break; } state; }) ); - size -= t; - next += t; - dump_intmask("int_status", readl(®s->int_status), &next, &size); - dump_intmask("int_enable", readl(®s->int_enable), &next, &size); + dump_intmask(m, "int_status", readl(®s->int_status)); + dump_intmask(m, "int_enable", readl(®s->int_enable)); if (!is_usb_connected || !dev->driver || (tmp & PW_PULLUP) == 0) goto done; /* registers for (active) device and ep0 */ - t = scnprintf(next, size, "\nirqs %lu\ndataset %02x " + if (seq_printf(m, "\nirqs %lu\ndataset %02x " "single.bcs %02x.%02x state %x addr %u\n", dev->irqs, readl(®s->DataSet), readl(®s->EPxSingle), readl(®s->EPxBCS), readl(®s->UsbState), - readl(®s->address)); - size -= t; - next += t; + readl(®s->address)) < 0) + goto done; tmp = readl(®s->dma_master); - t = scnprintf(next, size, + if (seq_printf(m, "dma %03X =" EIGHTBITS "%s %s\n", tmp, (tmp & MST_EOPB_DIS) ? " eopb-" : "", (tmp & MST_EOPB_ENA) ? " eopb+" : "", @@ -1143,9 +1128,8 @@ udc_proc_read(char *buffer, char **start, off_t off, int count, (tmp & MST_WR_ENA) ? " OUT" : "", (tmp & MST_CONNECTION) ? "ep1in/ep2out" - : "ep1out/ep2in"); - size -= t; - next += t; + : "ep1out/ep2in") < 0) + goto done; /* dump endpoint queues */ for (i = 0; i < 4; i++) { @@ -1156,7 +1140,7 @@ udc_proc_read(char *buffer, char **start, off_t off, int count, continue; tmp = readl(ep->reg_status); - t = scnprintf(next, size, + if (seq_printf(m, "%s %s max %u %s, irqs %lu, " "status %02x (%s) " FOURBITS "\n", ep->ep.name, @@ -1189,18 +1173,12 @@ udc_proc_read(char *buffer, char **start, off_t off, int count, (tmp & EPxSTATUS_SUSPEND) ? " suspend" : "", (tmp & EPxSTATUS_FIFO_DISABLE) ? " disable" : "", (tmp & EPxSTATUS_STAGE_ERROR) ? " ep0stat" : "" - ); - if (t <= 0 || t > size) + ) < 0) goto done; - size -= t; - next += t; if (list_empty(&ep->queue)) { - t = scnprintf(next, size, "\t(nothing queued)\n"); - if (t <= 0 || t > size) + if (seq_puts(m, "\t(nothing queued)\n") < 0) goto done; - size -= t; - next += t; continue; } list_for_each_entry(req, &ep->queue, queue) { @@ -1214,23 +1192,34 @@ udc_proc_read(char *buffer, char **start, off_t off, int count, } else tmp = req->req.actual; - t = scnprintf(next, size, + if (seq_printf(m, "\treq %p len %u/%u buf %p\n", &req->req, tmp, req->req.length, - req->req.buf); - if (t <= 0 || t > size) + req->req.buf) < 0) goto done; - size -= t; - next += t; } } done: local_irq_restore(flags); - *eof = 1; - return count - size; + return 0; } +/* + * seq_file wrappers for procfile show routines. + */ +static int udc_proc_open(struct inode *inode, struct file *file) +{ + return single_open(file, udc_proc_read, PDE_DATA(file_inode(file))); +} + +static const struct file_operations udc_proc_fops = { + .open = udc_proc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + #endif /* CONFIG_USB_GADGET_DEBUG_FILES */ /*-------------------------------------------------------------------------*/ @@ -1807,7 +1796,7 @@ static int goku_probe(struct pci_dev *pdev, const struct pci_device_id *id) #ifdef CONFIG_USB_GADGET_DEBUG_FILES - create_proc_read_entry(proc_node_name, 0, NULL, udc_proc_read, dev); + proc_create_data(proc_node_name, 0, NULL, &udc_proc_fops, dev); #endif retval = device_register(&dev->gadget.dev); From 77cd02c151cb6b7d81aad4802ee8b98a033863d6 Mon Sep 17 00:00:00 2001 From: David Howells Date: Wed, 10 Apr 2013 13:23:50 +0100 Subject: [PATCH 160/204] fsl_udc: Don't use create_proc_read_entry() Don't use create_proc_read_entry() as that is deprecated, but rather use proc_create_data() and seq_file instead. Signed-off-by: David Howells cc: Li Yang cc: Felipe Balbi cc: Greg Kroah-Hartman cc: linux-usb@vger.kernel.org cc: linuxppc-dev@lists.ozlabs.org Signed-off-by: Al Viro --- drivers/usb/gadget/fsl_udc_core.c | 126 +++++++++++------------------- 1 file changed, 44 insertions(+), 82 deletions(-) diff --git a/drivers/usb/gadget/fsl_udc_core.c b/drivers/usb/gadget/fsl_udc_core.c index 04d5fef1440c..ede70ffe1ab4 100644 --- a/drivers/usb/gadget/fsl_udc_core.c +++ b/drivers/usb/gadget/fsl_udc_core.c @@ -2038,47 +2038,37 @@ static int fsl_udc_stop(struct usb_gadget *g, static const char proc_filename[] = "driver/fsl_usb2_udc"; -static int fsl_proc_read(char *page, char **start, off_t off, int count, - int *eof, void *_dev) +static int fsl_proc_read(struct seq_file *m, void *v) { - char *buf = page; - char *next = buf; - unsigned size = count; unsigned long flags; - int t, i; + int i; u32 tmp_reg; struct fsl_ep *ep = NULL; struct fsl_req *req; struct fsl_udc *udc = udc_controller; - if (off != 0) - return 0; spin_lock_irqsave(&udc->lock, flags); /* ------basic driver information ---- */ - t = scnprintf(next, size, + seq_printf(m, DRIVER_DESC "\n" "%s version: %s\n" "Gadget driver: %s\n\n", driver_name, DRIVER_VERSION, udc->driver ? udc->driver->driver.name : "(none)"); - size -= t; - next += t; /* ------ DR Registers ----- */ tmp_reg = fsl_readl(&dr_regs->usbcmd); - t = scnprintf(next, size, + seq_printf(m, "USBCMD reg:\n" "SetupTW: %d\n" "Run/Stop: %s\n\n", (tmp_reg & USB_CMD_SUTW) ? 1 : 0, (tmp_reg & USB_CMD_RUN_STOP) ? "Run" : "Stop"); - size -= t; - next += t; tmp_reg = fsl_readl(&dr_regs->usbsts); - t = scnprintf(next, size, + seq_printf(m, "USB Status Reg:\n" "Dr Suspend: %d Reset Received: %d System Error: %s " "USB Error Interrupt: %s\n\n", @@ -2086,11 +2076,9 @@ static int fsl_proc_read(char *page, char **start, off_t off, int count, (tmp_reg & USB_STS_RESET) ? 1 : 0, (tmp_reg & USB_STS_SYS_ERR) ? "Err" : "Normal", (tmp_reg & USB_STS_ERR) ? "Err detected" : "No err"); - size -= t; - next += t; tmp_reg = fsl_readl(&dr_regs->usbintr); - t = scnprintf(next, size, + seq_printf(m, "USB Interrupt Enable Reg:\n" "Sleep Enable: %d SOF Received Enable: %d " "Reset Enable: %d\n" @@ -2104,33 +2092,25 @@ static int fsl_proc_read(char *page, char **start, off_t off, int count, (tmp_reg & USB_INTR_PTC_DETECT_EN) ? 1 : 0, (tmp_reg & USB_INTR_ERR_INT_EN) ? 1 : 0, (tmp_reg & USB_INTR_INT_EN) ? 1 : 0); - size -= t; - next += t; tmp_reg = fsl_readl(&dr_regs->frindex); - t = scnprintf(next, size, + seq_printf(m, "USB Frame Index Reg: Frame Number is 0x%x\n\n", (tmp_reg & USB_FRINDEX_MASKS)); - size -= t; - next += t; tmp_reg = fsl_readl(&dr_regs->deviceaddr); - t = scnprintf(next, size, + seq_printf(m, "USB Device Address Reg: Device Addr is 0x%x\n\n", (tmp_reg & USB_DEVICE_ADDRESS_MASK)); - size -= t; - next += t; tmp_reg = fsl_readl(&dr_regs->endpointlistaddr); - t = scnprintf(next, size, + seq_printf(m, "USB Endpoint List Address Reg: " "Device Addr is 0x%x\n\n", (tmp_reg & USB_EP_LIST_ADDRESS_MASK)); - size -= t; - next += t; tmp_reg = fsl_readl(&dr_regs->portsc1); - t = scnprintf(next, size, + seq_printf(m, "USB Port Status&Control Reg:\n" "Port Transceiver Type : %s Port Speed: %s\n" "PHY Low Power Suspend: %s Port Reset: %s " @@ -2139,7 +2119,7 @@ static int fsl_proc_read(char *page, char **start, off_t off, int count, "Port Enable/Disable Change: %s\n" "Port Enabled/Disabled: %s " "Current Connect Status: %s\n\n", ( { - char *s; + const char *s; switch (tmp_reg & PORTSCX_PTS_FSLS) { case PORTSCX_PTS_UTMI: s = "UTMI"; break; @@ -2165,13 +2145,11 @@ static int fsl_proc_read(char *page, char **start, off_t off, int count, "Not correct", (tmp_reg & PORTSCX_CURRENT_CONNECT_STATUS) ? "Attached" : "Not-Att"); - size -= t; - next += t; tmp_reg = fsl_readl(&dr_regs->usbmode); - t = scnprintf(next, size, + seq_printf(m, "USB Mode Reg: Controller Mode is: %s\n\n", ( { - char *s; + const char *s; switch (tmp_reg & USB_MODE_CTRL_MODE_HOST) { case USB_MODE_CTRL_MODE_IDLE: s = "Idle"; break; @@ -2184,103 +2162,87 @@ static int fsl_proc_read(char *page, char **start, off_t off, int count, } s; } )); - size -= t; - next += t; tmp_reg = fsl_readl(&dr_regs->endptsetupstat); - t = scnprintf(next, size, + seq_printf(m, "Endpoint Setup Status Reg: SETUP on ep 0x%x\n\n", (tmp_reg & EP_SETUP_STATUS_MASK)); - size -= t; - next += t; for (i = 0; i < udc->max_ep / 2; i++) { tmp_reg = fsl_readl(&dr_regs->endptctrl[i]); - t = scnprintf(next, size, "EP Ctrl Reg [0x%x]: = [0x%x]\n", - i, tmp_reg); - size -= t; - next += t; + seq_printf(m, "EP Ctrl Reg [0x%x]: = [0x%x]\n", i, tmp_reg); } tmp_reg = fsl_readl(&dr_regs->endpointprime); - t = scnprintf(next, size, "EP Prime Reg = [0x%x]\n\n", tmp_reg); - size -= t; - next += t; + seq_printf(m, "EP Prime Reg = [0x%x]\n\n", tmp_reg); #ifndef CONFIG_ARCH_MXC if (udc->pdata->have_sysif_regs) { tmp_reg = usb_sys_regs->snoop1; - t = scnprintf(next, size, "Snoop1 Reg : = [0x%x]\n\n", tmp_reg); - size -= t; - next += t; + seq_printf(m, "Snoop1 Reg : = [0x%x]\n\n", tmp_reg); tmp_reg = usb_sys_regs->control; - t = scnprintf(next, size, "General Control Reg : = [0x%x]\n\n", - tmp_reg); - size -= t; - next += t; + seq_printf(m, "General Control Reg : = [0x%x]\n\n", tmp_reg); } #endif /* ------fsl_udc, fsl_ep, fsl_request structure information ----- */ ep = &udc->eps[0]; - t = scnprintf(next, size, "For %s Maxpkt is 0x%x index is 0x%x\n", + seq_printf(m, "For %s Maxpkt is 0x%x index is 0x%x\n", ep->ep.name, ep_maxpacket(ep), ep_index(ep)); - size -= t; - next += t; if (list_empty(&ep->queue)) { - t = scnprintf(next, size, "its req queue is empty\n\n"); - size -= t; - next += t; + seq_puts(m, "its req queue is empty\n\n"); } else { list_for_each_entry(req, &ep->queue, queue) { - t = scnprintf(next, size, + seq_printf(m, "req %p actual 0x%x length 0x%x buf %p\n", &req->req, req->req.actual, req->req.length, req->req.buf); - size -= t; - next += t; } } /* other gadget->eplist ep */ list_for_each_entry(ep, &udc->gadget.ep_list, ep.ep_list) { if (ep->ep.desc) { - t = scnprintf(next, size, + seq_printf(m, "\nFor %s Maxpkt is 0x%x " "index is 0x%x\n", ep->ep.name, ep_maxpacket(ep), ep_index(ep)); - size -= t; - next += t; if (list_empty(&ep->queue)) { - t = scnprintf(next, size, - "its req queue is empty\n\n"); - size -= t; - next += t; + seq_puts(m, "its req queue is empty\n\n"); } else { list_for_each_entry(req, &ep->queue, queue) { - t = scnprintf(next, size, + seq_printf(m, "req %p actual 0x%x length " "0x%x buf %p\n", &req->req, req->req.actual, req->req.length, req->req.buf); - size -= t; - next += t; - } /* end for each_entry of ep req */ - } /* end for else */ - } /* end for if(ep->queue) */ - } /* end (ep->desc) */ + } /* end for each_entry of ep req */ + } /* end for else */ + } /* end for if(ep->queue) */ + } /* end (ep->desc) */ spin_unlock_irqrestore(&udc->lock, flags); - - *eof = 1; - return count - size; + return 0; } -#define create_proc_file() create_proc_read_entry(proc_filename, \ - 0, NULL, fsl_proc_read, NULL) +/* + * seq_file wrappers for procfile show routines. + */ +static int fsl_proc_open(struct inode *inode, struct file *file) +{ + return single_open(file, fsl_proc_read, NULL); +} +static const struct file_operations fsl_proc_fops = { + .open = fsl_proc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + +#define create_proc_file() proc_create(proc_filename, 0, NULL, &fsl_proc_fops) #define remove_proc_file() remove_proc_entry(proc_filename, NULL) #else /* !CONFIG_USB_GADGET_DEBUG_FILES */ From 11db656ad462c9aa7aff7e3817214578cfc307b3 Mon Sep 17 00:00:00 2001 From: David Howells Date: Wed, 10 Apr 2013 15:05:38 +0100 Subject: [PATCH 161/204] nubus: Don't use create_proc_read_entry() Don't use create_proc_read_entry() as that is deprecated, but rather use proc_create_data() and seq_file instead. Signed-off-by: David Howells cc: linux-m68k@lists.linux-m68k.org Signed-off-by: Al Viro --- drivers/nubus/nubus.c | 55 ----------------------------- drivers/nubus/proc.c | 81 ++++++++++++++++++++++++++++++++++++++++--- include/linux/nubus.h | 4 +++ 3 files changed, 80 insertions(+), 60 deletions(-) diff --git a/drivers/nubus/nubus.c b/drivers/nubus/nubus.c index 44d01afafe9c..43926cd25ae8 100644 --- a/drivers/nubus/nubus.c +++ b/drivers/nubus/nubus.c @@ -19,7 +19,6 @@ #include #include #include -#include #include #include @@ -954,56 +953,6 @@ void __init nubus_probe_slot(int slot) } } -#if defined(CONFIG_PROC_FS) - -/* /proc/nubus stuff */ - -static int sprint_nubus_board(struct nubus_board* board, char* ptr, int len) -{ - if(len < 100) - return -1; - - sprintf(ptr, "Slot %X: %s\n", - board->slot, board->name); - - return strlen(ptr); -} - -static int nubus_read_proc(char *page, char **start, off_t off, - int count, int *eof, void *data) -{ - int nprinted, len, begin = 0; - int size = PAGE_SIZE; - struct nubus_board* board; - - len = sprintf(page, "Nubus devices found:\n"); - /* Walk the list of NuBus boards */ - for (board = nubus_boards; board != NULL; board = board->next) - { - nprinted = sprint_nubus_board(board, page + len, size - len); - if (nprinted < 0) - break; - len += nprinted; - if (len+begin < off) { - begin += len; - len = 0; - } - if (len+begin >= off+count) - break; - } - if (len+begin < off) - *eof = 1; - off -= begin; - *start = page + off; - len -= off; - if (len>count) - len = count; - if (len<0) - len = 0; - return len; -} -#endif - void __init nubus_scan_bus(void) { int slot; @@ -1041,11 +990,7 @@ static int __init nubus_init(void) nubus_devices = NULL; nubus_boards = NULL; nubus_scan_bus(); - -#ifdef CONFIG_PROC_FS - create_proc_read_entry("nubus", 0, NULL, nubus_read_proc, NULL); nubus_proc_init(); -#endif return 0; } diff --git a/drivers/nubus/proc.c b/drivers/nubus/proc.c index bb1446bb2802..b8286ed65919 100644 --- a/drivers/nubus/proc.c +++ b/drivers/nubus/proc.c @@ -52,7 +52,6 @@ static int nubus_devices_proc_open(struct inode *inode, struct file *file) } static const struct file_operations nubus_devices_proc_fops = { - .owner = THIS_MODULE, .open = nubus_devices_proc_open, .read = seq_read, .llseek = seq_lseek, @@ -61,6 +60,10 @@ static const struct file_operations nubus_devices_proc_fops = { static struct proc_dir_entry *proc_bus_nubus_dir; +static const struct file_operations nubus_proc_subdir_fops = { +#warning Need to set some I/O handlers here +}; + static void nubus_proc_subdir(struct nubus_dev* dev, struct proc_dir_entry* parent, struct nubus_dir* dir) @@ -73,10 +76,10 @@ static void nubus_proc_subdir(struct nubus_dev* dev, struct proc_dir_entry* e; sprintf(name, "%x", ent.type); -#warning Need to set some I/O handlers here - e = create_proc_read_entry(name, S_IFREG | S_IRUGO | S_IWUSR, - parent, NULL, NULL); - if (!e) return; + e = proc_create(name, S_IFREG | S_IRUGO | S_IWUSR, parent, + &nubus_proc_subdir_fops); + if (!e) + return; } } @@ -159,6 +162,73 @@ int nubus_proc_detach_device(struct nubus_dev *dev) } EXPORT_SYMBOL(nubus_proc_detach_device); +/* + * /proc/nubus stuff + */ +static int nubus_proc_show(struct seq_file *m, void *v) +{ + const struct nubus_board *board = v; + + /* Display header on line 1 */ + if (v == SEQ_START_TOKEN) + seq_puts(m, "Nubus devices found:\n"); + else + seq_printf(m, "Slot %X: %s\n", board->slot, board->name); + return 0; +} + +static void *nubus_proc_start(struct seq_file *m, loff_t *_pos) +{ + struct nubus_board *board; + unsigned pos; + + if (*_pos > LONG_MAX) + return NULL; + pos = *_pos; + if (pos == 0) + return SEQ_START_TOKEN; + for (board = nubus_boards; board; board = board->next) + if (--pos == 0) + break; + return board; +} + +static void *nubus_proc_next(struct seq_file *p, void *v, loff_t *_pos) +{ + /* Walk the list of NuBus boards */ + struct nubus_board *board = v; + + ++*_pos; + if (v == SEQ_START_TOKEN) + board = nubus_boards; + else if (board) + board = board->next; + return board; +} + +static void nubus_proc_stop(struct seq_file *p, void *v) +{ +} + +static const struct seq_operations nubus_proc_seqops = { + .start = nubus_proc_start, + .next = nubus_proc_next, + .stop = nubus_proc_stop, + .show = nubus_proc_show, +}; + +static int nubus_proc_open(struct inode *inode, struct file *file) +{ + return seq_open(file, &nubus_proc_seqops); +} + +static const struct file_operations nubus_proc_fops = { + .open = nubus_proc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + void __init proc_bus_nubus_add_devices(void) { struct nubus_dev *dev; @@ -169,6 +239,7 @@ void __init proc_bus_nubus_add_devices(void) void __init nubus_proc_init(void) { + proc_create("nubus", 0, NULL, &nubus_proc_fops); if (!MACH_IS_MAC) return; proc_bus_nubus_dir = proc_mkdir("bus/nubus", NULL); diff --git a/include/linux/nubus.h b/include/linux/nubus.h index a8696bbdfbc4..b3740527571a 100644 --- a/include/linux/nubus.h +++ b/include/linux/nubus.h @@ -80,7 +80,11 @@ extern struct nubus_board* nubus_boards; /* Generic NuBus interface functions, modelled after the PCI interface */ void nubus_scan_bus(void); +#ifdef CONFIG_PROC_FS extern void nubus_proc_init(void); +#else +static inline void nubus_proc_init(void) {} +#endif int get_nubus_list(char *buf); int nubus_proc_attach_device(struct nubus_dev *dev); int nubus_proc_detach_device(struct nubus_dev *dev); From c18bd9a1ff477bd010d7607a8e575da24de0b08b Mon Sep 17 00:00:00 2001 From: David Howells Date: Wed, 10 Apr 2013 15:52:18 +0100 Subject: [PATCH 162/204] hp_sdc_rtc: Don't use create_proc_read_entry() Don't use create_proc_read_entry() as that is deprecated, but rather use proc_create_data() and seq_file instead. Signed-off-by: David Howells cc: Brian S. Julin cc: Helge Deller cc: linux-m68k@lists.linux-m68k.org Signed-off-by: Al Viro --- drivers/input/misc/hp_sdc_rtc.c | 58 +++++++++++++++------------------ 1 file changed, 26 insertions(+), 32 deletions(-) diff --git a/drivers/input/misc/hp_sdc_rtc.c b/drivers/input/misc/hp_sdc_rtc.c index 2e3334b8f82d..770479df8657 100644 --- a/drivers/input/misc/hp_sdc_rtc.c +++ b/drivers/input/misc/hp_sdc_rtc.c @@ -41,6 +41,7 @@ #include #include #include +#include #include #include #include @@ -74,9 +75,6 @@ static unsigned int hp_sdc_rtc_poll(struct file *file, poll_table *wait); static int hp_sdc_rtc_open(struct inode *inode, struct file *file); static int hp_sdc_rtc_fasync (int fd, struct file *filp, int on); -static int hp_sdc_rtc_read_proc(char *page, char **start, off_t off, - int count, int *eof, void *data); - static void hp_sdc_rtc_isr (int irq, void *dev_id, uint8_t status, uint8_t data) { @@ -427,22 +425,19 @@ static int hp_sdc_rtc_fasync (int fd, struct file *filp, int on) return fasync_helper (fd, filp, on, &hp_sdc_rtc_async_queue); } -static int hp_sdc_rtc_proc_output (char *buf) +static int hp_sdc_rtc_proc_show(struct seq_file *m, void *v) { #define YN(bit) ("no") #define NY(bit) ("yes") - char *p; struct rtc_time tm; struct timeval tv; memset(&tm, 0, sizeof(struct rtc_time)); - p = buf; - if (hp_sdc_rtc_read_bbrtc(&tm)) { - p += sprintf(p, "BBRTC\t\t: READ FAILED!\n"); + seq_puts(m, "BBRTC\t\t: READ FAILED!\n"); } else { - p += sprintf(p, + seq_printf(m, "rtc_time\t: %02d:%02d:%02d\n" "rtc_date\t: %04d-%02d-%02d\n" "rtc_epoch\t: %04lu\n", @@ -452,41 +447,41 @@ static int hp_sdc_rtc_proc_output (char *buf) } if (hp_sdc_rtc_read_rt(&tv)) { - p += sprintf(p, "i8042 rtc\t: READ FAILED!\n"); + seq_puts(m, "i8042 rtc\t: READ FAILED!\n"); } else { - p += sprintf(p, "i8042 rtc\t: %ld.%02d seconds\n", + seq_printf(m, "i8042 rtc\t: %ld.%02d seconds\n", tv.tv_sec, (int)tv.tv_usec/1000); } if (hp_sdc_rtc_read_fhs(&tv)) { - p += sprintf(p, "handshake\t: READ FAILED!\n"); + seq_puts(m, "handshake\t: READ FAILED!\n"); } else { - p += sprintf(p, "handshake\t: %ld.%02d seconds\n", + seq_printf(m, "handshake\t: %ld.%02d seconds\n", tv.tv_sec, (int)tv.tv_usec/1000); } if (hp_sdc_rtc_read_mt(&tv)) { - p += sprintf(p, "alarm\t\t: READ FAILED!\n"); + seq_puts(m, "alarm\t\t: READ FAILED!\n"); } else { - p += sprintf(p, "alarm\t\t: %ld.%02d seconds\n", + seq_printf(m, "alarm\t\t: %ld.%02d seconds\n", tv.tv_sec, (int)tv.tv_usec/1000); } if (hp_sdc_rtc_read_dt(&tv)) { - p += sprintf(p, "delay\t\t: READ FAILED!\n"); + seq_puts(m, "delay\t\t: READ FAILED!\n"); } else { - p += sprintf(p, "delay\t\t: %ld.%02d seconds\n", + seq_printf(m, "delay\t\t: %ld.%02d seconds\n", tv.tv_sec, (int)tv.tv_usec/1000); } if (hp_sdc_rtc_read_ct(&tv)) { - p += sprintf(p, "periodic\t: READ FAILED!\n"); + seq_puts(m, "periodic\t: READ FAILED!\n"); } else { - p += sprintf(p, "periodic\t: %ld.%02d seconds\n", + seq_printf(m, "periodic\t: %ld.%02d seconds\n", tv.tv_sec, (int)tv.tv_usec/1000); } - p += sprintf(p, + seq_printf(m, "DST_enable\t: %s\n" "BCD\t\t: %s\n" "24hr\t\t: %s\n" @@ -506,23 +501,23 @@ static int hp_sdc_rtc_proc_output (char *buf) 1UL, 1 ? "okay" : "dead"); - return p - buf; + return 0; #undef YN #undef NY } -static int hp_sdc_rtc_read_proc(char *page, char **start, off_t off, - int count, int *eof, void *data) +static int hp_sdc_rtc_proc_open(struct inode *inode, struct file *file) { - int len = hp_sdc_rtc_proc_output (page); - if (len <= off+count) *eof = 1; - *start = page + off; - len -= off; - if (len>count) len = count; - if (len<0) len = 0; - return len; + return single_open(file, hp_sdc_rtc_proc_show, NULL); } +static const struct file_operations hp_sdc_rtc_proc_fops = { + .open = hp_sdc_rtc_proc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + static int hp_sdc_rtc_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { @@ -715,8 +710,7 @@ static int __init hp_sdc_rtc_init(void) if (misc_register(&hp_sdc_rtc_dev) != 0) printk(KERN_INFO "Could not register misc. dev for i8042 rtc\n"); - create_proc_read_entry ("driver/rtc", 0, NULL, - hp_sdc_rtc_read_proc, NULL); + proc_create("driver/rtc", 0, NULL, &hp_sdc_rtc_proc_fops); printk(KERN_INFO "HP i8042 SDC + MSM-58321 RTC support loaded " "(RTC v " RTC_VERSION ")\n"); From a6d935a5b1d945c7bec2afe21dcf6f22b653acef Mon Sep 17 00:00:00 2001 From: David Howells Date: Wed, 10 Apr 2013 16:11:53 +0100 Subject: [PATCH 163/204] genrtc: Don't use create_proc_read_entry() Don't use create_proc_read_entry() as that is deprecated, but rather use proc_create_data() and seq_file instead. Signed-off-by: David Howells cc: Arnd Bergmann cc: Greg Kroah-Hartman Signed-off-by: Al Viro --- drivers/char/genrtc.c | 48 +++++++++++++++++++++---------------------- 1 file changed, 23 insertions(+), 25 deletions(-) diff --git a/drivers/char/genrtc.c b/drivers/char/genrtc.c index 21cb980f1157..bc9b84d56ee4 100644 --- a/drivers/char/genrtc.c +++ b/drivers/char/genrtc.c @@ -52,6 +52,7 @@ #include #include #include +#include #include #include @@ -386,18 +387,15 @@ static int gen_rtc_release(struct inode *inode, struct file *file) * Info exported via "/proc/driver/rtc". */ -static int gen_rtc_proc_output(char *buf) +static int gen_rtc_proc_show(struct seq_file *m, void *v) { - char *p; struct rtc_time tm; unsigned int flags; struct rtc_pll_info pll; - p = buf; - flags = get_rtc_time(&tm); - p += sprintf(p, + seq_printf(m, "rtc_time\t: %02d:%02d:%02d\n" "rtc_date\t: %04d-%02d-%02d\n" "rtc_epoch\t: %04u\n", @@ -406,23 +404,23 @@ static int gen_rtc_proc_output(char *buf) tm.tm_hour = tm.tm_min = tm.tm_sec = 0; - p += sprintf(p, "alarm\t\t: "); + seq_puts(m, "alarm\t\t: "); if (tm.tm_hour <= 24) - p += sprintf(p, "%02d:", tm.tm_hour); + seq_printf(m, "%02d:", tm.tm_hour); else - p += sprintf(p, "**:"); + seq_puts(m, "**:"); if (tm.tm_min <= 59) - p += sprintf(p, "%02d:", tm.tm_min); + seq_printf(m, "%02d:", tm.tm_min); else - p += sprintf(p, "**:"); + seq_puts(m, "**:"); if (tm.tm_sec <= 59) - p += sprintf(p, "%02d\n", tm.tm_sec); + seq_printf(m, "%02d\n", tm.tm_sec); else - p += sprintf(p, "**\n"); + seq_puts(m, "**\n"); - p += sprintf(p, + seq_printf(m, "DST_enable\t: %s\n" "BCD\t\t: %s\n" "24hr\t\t: %s\n" @@ -442,7 +440,7 @@ static int gen_rtc_proc_output(char *buf) 0L /* freq */, (flags & RTC_BATT_BAD) ? "bad" : "okay"); if (!get_rtc_pll(&pll)) - p += sprintf(p, + seq_printf(m, "PLL adjustment\t: %d\n" "PLL max +ve adjustment\t: %d\n" "PLL max -ve adjustment\t: %d\n" @@ -455,26 +453,26 @@ static int gen_rtc_proc_output(char *buf) pll.pll_posmult, pll.pll_negmult, pll.pll_clock); - return p - buf; + return 0; } -static int gen_rtc_read_proc(char *page, char **start, off_t off, - int count, int *eof, void *data) +static int gen_rtc_proc_open(struct inode *inode, struct file *file) { - int len = gen_rtc_proc_output (page); - if (len <= off+count) *eof = 1; - *start = page + off; - len -= off; - if (len>count) len = count; - if (len<0) len = 0; - return len; + return single_open(file, gen_rtc_proc_show, NULL); } +static const struct file_operations gen_rtc_proc_fops = { + .open = gen_rtc_proc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + static int __init gen_rtc_proc_init(void) { struct proc_dir_entry *r; - r = create_proc_read_entry("driver/rtc", 0, NULL, gen_rtc_read_proc, NULL); + r = proc_create("driver/rtc", 0, NULL, &gen_rtc_proc_fops); if (!r) return -ENOMEM; return 0; From 788416bcee1a68aa0e8ed3f49c800b6c3df1c0a4 Mon Sep 17 00:00:00 2001 From: David Howells Date: Wed, 10 Apr 2013 16:21:08 +0100 Subject: [PATCH 164/204] efirtc: Don't use create_proc_read_entry() Don't use create_proc_read_entry() as that is deprecated, but rather use proc_create_data() and seq_file instead. Signed-off-by: David Howells cc: Arnd Bergmann cc: Greg Kroah-Hartman Signed-off-by: Al Viro --- drivers/char/efirtc.c | 83 +++++++++++++++++++++---------------------- 1 file changed, 40 insertions(+), 43 deletions(-) diff --git a/drivers/char/efirtc.c b/drivers/char/efirtc.c index a082d00b0f11..ea54a6e3f5ad 100644 --- a/drivers/char/efirtc.c +++ b/drivers/char/efirtc.c @@ -34,6 +34,7 @@ #include #include #include +#include #include #include @@ -296,12 +297,10 @@ static struct miscdevice efi_rtc_dev= { /* * We export RAW EFI information to /proc/driver/efirtc */ -static int -efi_rtc_get_status(char *buf) +static int efi_rtc_proc_show(struct seq_file *m, void *v) { efi_time_t eft, alm; efi_time_cap_t cap; - char *p = buf; efi_bool_t enabled, pending; unsigned long flags; @@ -316,64 +315,63 @@ efi_rtc_get_status(char *buf) spin_unlock_irqrestore(&efi_rtc_lock,flags); - p += sprintf(p, - "Time : %u:%u:%u.%09u\n" - "Date : %u-%u-%u\n" - "Daylight : %u\n", - eft.hour, eft.minute, eft.second, eft.nanosecond, - eft.year, eft.month, eft.day, - eft.daylight); + seq_printf(m, + "Time : %u:%u:%u.%09u\n" + "Date : %u-%u-%u\n" + "Daylight : %u\n", + eft.hour, eft.minute, eft.second, eft.nanosecond, + eft.year, eft.month, eft.day, + eft.daylight); if (eft.timezone == EFI_UNSPECIFIED_TIMEZONE) - p += sprintf(p, "Timezone : unspecified\n"); + seq_puts(m, "Timezone : unspecified\n"); else /* XXX fixme: convert to string? */ - p += sprintf(p, "Timezone : %u\n", eft.timezone); + seq_printf(m, "Timezone : %u\n", eft.timezone); - p += sprintf(p, - "Alarm Time : %u:%u:%u.%09u\n" - "Alarm Date : %u-%u-%u\n" - "Alarm Daylight : %u\n" - "Enabled : %s\n" - "Pending : %s\n", - alm.hour, alm.minute, alm.second, alm.nanosecond, - alm.year, alm.month, alm.day, - alm.daylight, - enabled == 1 ? "yes" : "no", - pending == 1 ? "yes" : "no"); + seq_printf(m, + "Alarm Time : %u:%u:%u.%09u\n" + "Alarm Date : %u-%u-%u\n" + "Alarm Daylight : %u\n" + "Enabled : %s\n" + "Pending : %s\n", + alm.hour, alm.minute, alm.second, alm.nanosecond, + alm.year, alm.month, alm.day, + alm.daylight, + enabled == 1 ? "yes" : "no", + pending == 1 ? "yes" : "no"); if (eft.timezone == EFI_UNSPECIFIED_TIMEZONE) - p += sprintf(p, "Timezone : unspecified\n"); + seq_puts(m, "Timezone : unspecified\n"); else /* XXX fixme: convert to string? */ - p += sprintf(p, "Timezone : %u\n", alm.timezone); + seq_printf(m, "Timezone : %u\n", alm.timezone); /* * now prints the capabilities */ - p += sprintf(p, - "Resolution : %u\n" - "Accuracy : %u\n" - "SetstoZero : %u\n", - cap.resolution, cap.accuracy, cap.sets_to_zero); + seq_printf(m, + "Resolution : %u\n" + "Accuracy : %u\n" + "SetstoZero : %u\n", + cap.resolution, cap.accuracy, cap.sets_to_zero); - return p - buf; + return 0; } -static int -efi_rtc_read_proc(char *page, char **start, off_t off, - int count, int *eof, void *data) +static int efi_rtc_proc_open(struct inode *inode, struct file *file) { - int len = efi_rtc_get_status(page); - if (len <= off+count) *eof = 1; - *start = page + off; - len -= off; - if (len>count) len = count; - if (len<0) len = 0; - return len; + return single_open(file, efi_rtc_proc_show, NULL); } +static const struct file_operations efi_rtc_proc_fops = { + .open = efi_rtc_proc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + static int __init efi_rtc_init(void) { @@ -389,8 +387,7 @@ efi_rtc_init(void) return ret; } - dir = create_proc_read_entry ("driver/efirtc", 0, NULL, - efi_rtc_read_proc, NULL); + dir = proc_create("driver/efirtc", 0, NULL, &efi_rtc_proc_fops); if (dir == NULL) { printk(KERN_ERR "efirtc: can't create /proc/driver/efirtc.\n"); misc_deregister(&efi_rtc_dev); From 9fb8ca5c2029b41edc7dbbe478f376ead14944ec Mon Sep 17 00:00:00 2001 From: David Howells Date: Wed, 10 Apr 2013 16:48:39 +0100 Subject: [PATCH 165/204] ds1620: Don't use create_proc_read_entry() Don't use create_proc_read_entry() as that is deprecated, but rather use proc_create_data() and seq_file instead. Signed-off-by: David Howells cc: Arnd Bergmann cc: Greg Kroah-Hartman Signed-off-by: Al Viro --- drivers/char/ds1620.c | 35 ++++++++++++++++++++--------------- 1 file changed, 20 insertions(+), 15 deletions(-) diff --git a/drivers/char/ds1620.c b/drivers/char/ds1620.c index b599fae698df..544b4ce617f8 100644 --- a/drivers/char/ds1620.c +++ b/drivers/char/ds1620.c @@ -6,6 +6,7 @@ #include #include #include +#include #include #include #include @@ -329,9 +330,7 @@ ds1620_unlocked_ioctl(struct file *file, unsigned int cmd, unsigned long arg) } #ifdef THERM_USE_PROC -static int -proc_therm_ds1620_read(char *buf, char **start, off_t offset, - int len, int *eof, void *unused) +static int ds1620_proc_therm_show(struct seq_file *m, void *v) { struct therm th; int temp; @@ -339,17 +338,25 @@ proc_therm_ds1620_read(char *buf, char **start, off_t offset, ds1620_read_state(&th); temp = cvt_9_to_int(ds1620_in(THERM_READ_TEMP, 9)); - len = sprintf(buf, "Thermostat: HI %i.%i, LOW %i.%i; " - "temperature: %i.%i C, fan %s\n", - th.hi >> 1, th.hi & 1 ? 5 : 0, - th.lo >> 1, th.lo & 1 ? 5 : 0, - temp >> 1, temp & 1 ? 5 : 0, - fan_state[netwinder_get_fan()]); - - return len; + seq_printf(m, "Thermostat: HI %i.%i, LOW %i.%i; temperature: %i.%i C, fan %s\n", + th.hi >> 1, th.hi & 1 ? 5 : 0, + th.lo >> 1, th.lo & 1 ? 5 : 0, + temp >> 1, temp & 1 ? 5 : 0, + fan_state[netwinder_get_fan()]); + return 0; } -static struct proc_dir_entry *proc_therm_ds1620; +static int ds1620_proc_therm_open(struct inode *inode, struct file *file) +{ + return single_open(file, ds1620_proc_therm_show, NULL); +} + +static const struct file_operations ds1620_proc_therm_fops = { + .open = ds1620_proc_therm_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; #endif static const struct file_operations ds1620_fops = { @@ -397,9 +404,7 @@ static int __init ds1620_init(void) return ret; #ifdef THERM_USE_PROC - proc_therm_ds1620 = create_proc_read_entry("therm", 0, NULL, - proc_therm_ds1620_read, NULL); - if (!proc_therm_ds1620) + if (!proc_create("therm", 0, NULL, &ds1620_proc_therm_fops)) printk(KERN_ERR "therm: unable to register /proc/therm\n"); #endif From 4c4df9b91bf6ffd4bb01abe4cfba1f8f145878a0 Mon Sep 17 00:00:00 2001 From: David Howells Date: Wed, 10 Apr 2013 16:50:58 +0100 Subject: [PATCH 166/204] atmel: Don't use create_proc_read_entry() Don't use create_proc_read_entry() as that is deprecated, but rather use proc_create_data() and seq_file instead. Signed-off-by: David Howells cc: Simon Kelley cc: John W. Linville cc: linux-wireless@vger.kernel.org cc: netdev@vger.kernel.org Signed-off-by: Al Viro --- drivers/net/wireless/atmel.c | 69 ++++++++++++++++-------------------- 1 file changed, 31 insertions(+), 38 deletions(-) diff --git a/drivers/net/wireless/atmel.c b/drivers/net/wireless/atmel.c index 4374079dfc2a..23a3498f14d4 100644 --- a/drivers/net/wireless/atmel.c +++ b/drivers/net/wireless/atmel.c @@ -63,6 +63,7 @@ #include #include #include +#include #include #include #include @@ -1409,30 +1410,28 @@ static int atmel_validate_channel(struct atmel_private *priv, int channel) return 0; } -static int atmel_proc_output (char *buf, struct atmel_private *priv) +static int atmel_proc_show(struct seq_file *m, void *v) { + struct atmel_private *priv = m->private; int i; - char *p = buf; char *s, *r, *c; - p += sprintf(p, "Driver version:\t\t%d.%d\n", - DRIVER_MAJOR, DRIVER_MINOR); + seq_printf(m, "Driver version:\t\t%d.%d\n", DRIVER_MAJOR, DRIVER_MINOR); if (priv->station_state != STATION_STATE_DOWN) { - p += sprintf(p, "Firmware version:\t%d.%d build %d\n" - "Firmware location:\t", - priv->host_info.major_version, - priv->host_info.minor_version, - priv->host_info.build_version); + seq_printf(m, + "Firmware version:\t%d.%d build %d\n" + "Firmware location:\t", + priv->host_info.major_version, + priv->host_info.minor_version, + priv->host_info.build_version); if (priv->card_type != CARD_TYPE_EEPROM) - p += sprintf(p, "on card\n"); + seq_puts(m, "on card\n"); else if (priv->firmware) - p += sprintf(p, "%s loaded by host\n", - priv->firmware_id); + seq_printf(m, "%s loaded by host\n", priv->firmware_id); else - p += sprintf(p, "%s loaded by hotplug\n", - priv->firmware_id); + seq_printf(m, "%s loaded by hotplug\n", priv->firmware_id); switch (priv->card_type) { case CARD_TYPE_PARALLEL_FLASH: @@ -1453,12 +1452,12 @@ static int atmel_proc_output (char *buf, struct atmel_private *priv) if (priv->reg_domain == channel_table[i].reg_domain) r = channel_table[i].name; - p += sprintf(p, "MAC memory type:\t%s\n", c); - p += sprintf(p, "Regulatory domain:\t%s\n", r); - p += sprintf(p, "Host CRC checking:\t%s\n", - priv->do_rx_crc ? "On" : "Off"); - p += sprintf(p, "WPA-capable firmware:\t%s\n", - priv->use_wpa ? "Yes" : "No"); + seq_printf(m, "MAC memory type:\t%s\n", c); + seq_printf(m, "Regulatory domain:\t%s\n", r); + seq_printf(m, "Host CRC checking:\t%s\n", + priv->do_rx_crc ? "On" : "Off"); + seq_printf(m, "WPA-capable firmware:\t%s\n", + priv->use_wpa ? "Yes" : "No"); } switch (priv->station_state) { @@ -1490,26 +1489,22 @@ static int atmel_proc_output (char *buf, struct atmel_private *priv) s = ""; } - p += sprintf(p, "Current state:\t\t%s\n", s); - return p - buf; + seq_printf(m, "Current state:\t\t%s\n", s); + return 0; } -static int atmel_read_proc(char *page, char **start, off_t off, - int count, int *eof, void *data) +static int atmel_proc_open(struct inode *inode, struct file *file) { - struct atmel_private *priv = data; - int len = atmel_proc_output (page, priv); - if (len <= off+count) - *eof = 1; - *start = page + off; - len -= off; - if (len > count) - len = count; - if (len < 0) - len = 0; - return len; + return single_open(file, atmel_proc_show, PDE_DATA(inode)); } +static const struct file_operations atmel_proc_fops = { + .open = atmel_proc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + static const struct net_device_ops atmel_netdev_ops = { .ndo_open = atmel_open, .ndo_stop = atmel_close, @@ -1525,7 +1520,6 @@ struct net_device *init_atmel_card(unsigned short irq, unsigned long port, struct device *sys_dev, int (*card_present)(void *), void *card) { - struct proc_dir_entry *ent; struct net_device *dev; struct atmel_private *priv; int rc; @@ -1630,8 +1624,7 @@ struct net_device *init_atmel_card(unsigned short irq, unsigned long port, netif_carrier_off(dev); - ent = create_proc_read_entry ("driver/atmel", 0, NULL, atmel_read_proc, priv); - if (!ent) + if (!proc_create_data("driver/atmel", 0, NULL, &atmel_proc_fops, priv)); printk(KERN_WARNING "atmel: unable to create /proc entry.\n"); printk(KERN_INFO "%s: Atmel at76c50x. Version %d.%d. MAC %pM\n", From 6bbefe86796c07fb8a6d28114f1e3f770586ba05 Mon Sep 17 00:00:00 2001 From: David Howells Date: Wed, 10 Apr 2013 21:13:23 +0100 Subject: [PATCH 167/204] hostap: Don't use create_proc_read_entry() Don't use create_proc_read_entry() as that is deprecated, but rather use proc_create_data() and seq_file instead. Signed-off-by: David Howells Acked-by: Greg Kroah-Hartman cc: Jouni Malinen cc: John W. Linville cc: Johannes Berg cc: linux-wireless@vger.kernel.org cc: netdev@vger.kernel.org cc: devel@driverdev.osuosl.org Signed-off-by: Al Viro --- drivers/net/wireless/hostap/hostap_ap.c | 385 ++++++----- drivers/net/wireless/hostap/hostap_download.c | 68 +- drivers/net/wireless/hostap/hostap_hw.c | 38 +- drivers/net/wireless/hostap/hostap_proc.c | 623 ++++++++++-------- drivers/net/wireless/hostap/hostap_wlan.h | 3 +- drivers/staging/rtl8192e/rtllib_crypt_ccmp.c | 21 +- drivers/staging/rtl8192e/rtllib_crypt_tkip.c | 44 +- drivers/staging/rtl8192e/rtllib_crypt_wep.c | 6 +- include/net/lib80211.h | 4 +- net/wireless/lib80211_crypt_ccmp.c | 29 +- net/wireless/lib80211_crypt_tkip.c | 44 +- net/wireless/lib80211_crypt_wep.c | 5 +- 12 files changed, 725 insertions(+), 545 deletions(-) diff --git a/drivers/net/wireless/hostap/hostap_ap.c b/drivers/net/wireless/hostap/hostap_ap.c index dd9a18f8dbca..19c45e363aa7 100644 --- a/drivers/net/wireless/hostap/hostap_ap.c +++ b/drivers/net/wireless/hostap/hostap_ap.c @@ -17,6 +17,7 @@ */ #include +#include #include #include #include @@ -64,28 +65,32 @@ static void prism2_send_mgmt(struct net_device *dev, #ifndef PRISM2_NO_PROCFS_DEBUG -static int ap_debug_proc_read(char *page, char **start, off_t off, - int count, int *eof, void *data) +static int ap_debug_proc_show(struct seq_file *m, void *v) { - char *p = page; - struct ap_data *ap = (struct ap_data *) data; + struct ap_data *ap = m->private; - if (off != 0) { - *eof = 1; - return 0; - } - - p += sprintf(p, "BridgedUnicastFrames=%u\n", ap->bridged_unicast); - p += sprintf(p, "BridgedMulticastFrames=%u\n", ap->bridged_multicast); - p += sprintf(p, "max_inactivity=%u\n", ap->max_inactivity / HZ); - p += sprintf(p, "bridge_packets=%u\n", ap->bridge_packets); - p += sprintf(p, "nullfunc_ack=%u\n", ap->nullfunc_ack); - p += sprintf(p, "autom_ap_wds=%u\n", ap->autom_ap_wds); - p += sprintf(p, "auth_algs=%u\n", ap->local->auth_algs); - p += sprintf(p, "tx_drop_nonassoc=%u\n", ap->tx_drop_nonassoc); - - return (p - page); + seq_printf(m, "BridgedUnicastFrames=%u\n", ap->bridged_unicast); + seq_printf(m, "BridgedMulticastFrames=%u\n", ap->bridged_multicast); + seq_printf(m, "max_inactivity=%u\n", ap->max_inactivity / HZ); + seq_printf(m, "bridge_packets=%u\n", ap->bridge_packets); + seq_printf(m, "nullfunc_ack=%u\n", ap->nullfunc_ack); + seq_printf(m, "autom_ap_wds=%u\n", ap->autom_ap_wds); + seq_printf(m, "auth_algs=%u\n", ap->local->auth_algs); + seq_printf(m, "tx_drop_nonassoc=%u\n", ap->tx_drop_nonassoc); + return 0; } + +static int ap_debug_proc_open(struct inode *inode, struct file *file) +{ + return single_open(file, ap_debug_proc_show, PDE_DATA(inode)); +} + +static const struct file_operations ap_debug_proc_fops = { + .open = ap_debug_proc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; #endif /* PRISM2_NO_PROCFS_DEBUG */ @@ -325,50 +330,81 @@ void hostap_deauth_all_stas(struct net_device *dev, struct ap_data *ap, } -static int ap_control_proc_read(char *page, char **start, off_t off, - int count, int *eof, void *data) +static int ap_control_proc_show(struct seq_file *m, void *v) { - char *p = page; - struct ap_data *ap = (struct ap_data *) data; + struct ap_data *ap = m->private; char *policy_txt; struct mac_entry *entry; - if (off != 0) { - *eof = 1; + if (v == SEQ_START_TOKEN) { + switch (ap->mac_restrictions.policy) { + case MAC_POLICY_OPEN: + policy_txt = "open"; + break; + case MAC_POLICY_ALLOW: + policy_txt = "allow"; + break; + case MAC_POLICY_DENY: + policy_txt = "deny"; + break; + default: + policy_txt = "unknown"; + break; + } + seq_printf(m, "MAC policy: %s\n", policy_txt); + seq_printf(m, "MAC entries: %u\n", ap->mac_restrictions.entries); + seq_puts(m, "MAC list:\n"); return 0; } - switch (ap->mac_restrictions.policy) { - case MAC_POLICY_OPEN: - policy_txt = "open"; - break; - case MAC_POLICY_ALLOW: - policy_txt = "allow"; - break; - case MAC_POLICY_DENY: - policy_txt = "deny"; - break; - default: - policy_txt = "unknown"; - break; - } - p += sprintf(p, "MAC policy: %s\n", policy_txt); - p += sprintf(p, "MAC entries: %u\n", ap->mac_restrictions.entries); - p += sprintf(p, "MAC list:\n"); - spin_lock_bh(&ap->mac_restrictions.lock); - list_for_each_entry(entry, &ap->mac_restrictions.mac_list, list) { - if (p - page > PAGE_SIZE - 80) { - p += sprintf(p, "All entries did not fit one page.\n"); - break; - } - - p += sprintf(p, "%pM\n", entry->addr); - } - spin_unlock_bh(&ap->mac_restrictions.lock); - - return (p - page); + entry = v; + seq_printf(m, "%pM\n", entry->addr); + return 0; } +static void *ap_control_proc_start(struct seq_file *m, loff_t *_pos) +{ + struct ap_data *ap = m->private; + spin_lock_bh(&ap->mac_restrictions.lock); + return seq_list_start_head(&ap->mac_restrictions.mac_list, *_pos); +} + +static void *ap_control_proc_next(struct seq_file *m, void *v, loff_t *_pos) +{ + struct ap_data *ap = m->private; + return seq_list_next(v, &ap->mac_restrictions.mac_list, _pos); +} + +static void ap_control_proc_stop(struct seq_file *m, void *v) +{ + struct ap_data *ap = m->private; + spin_unlock_bh(&ap->mac_restrictions.lock); +} + +static const struct seq_operations ap_control_proc_seqops = { + .start = ap_control_proc_start, + .next = ap_control_proc_next, + .stop = ap_control_proc_stop, + .show = ap_control_proc_show, +}; + +static int ap_control_proc_open(struct inode *inode, struct file *file) +{ + int ret = seq_open(file, &ap_control_proc_seqops); + if (ret == 0) { + struct seq_file *m = file->private_data; + m->private = PDE_DATA(inode); + } + return ret; +} + +static const struct file_operations ap_control_proc_fops = { + .open = ap_control_proc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + int ap_control_add_mac(struct mac_restrictions *mac_restrictions, u8 *mac) { @@ -510,61 +546,84 @@ void ap_control_kickall(struct ap_data *ap) #ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT -#define PROC_LIMIT (PAGE_SIZE - 80) - -static int prism2_ap_proc_read(char *page, char **start, off_t off, - int count, int *eof, void *data) +static int prism2_ap_proc_show(struct seq_file *m, void *v) { - char *p = page; - struct ap_data *ap = (struct ap_data *) data; - struct sta_info *sta; + struct sta_info *sta = v; int i; - if (off > PROC_LIMIT) { - *eof = 1; + if (v == SEQ_START_TOKEN) { + seq_printf(m, "# BSSID CHAN SIGNAL NOISE RATE SSID FLAGS\n"); return 0; } - p += sprintf(p, "# BSSID CHAN SIGNAL NOISE RATE SSID FLAGS\n"); - spin_lock_bh(&ap->sta_table_lock); - list_for_each_entry(sta, &ap->sta_list, list) { - if (!sta->ap) - continue; - - p += sprintf(p, "%pM %d %d %d %d '", - sta->addr, - sta->u.ap.channel, sta->last_rx_signal, - sta->last_rx_silence, sta->last_rx_rate); - for (i = 0; i < sta->u.ap.ssid_len; i++) - p += sprintf(p, ((sta->u.ap.ssid[i] >= 32 && - sta->u.ap.ssid[i] < 127) ? - "%c" : "<%02x>"), - sta->u.ap.ssid[i]); - p += sprintf(p, "'"); - if (sta->capability & WLAN_CAPABILITY_ESS) - p += sprintf(p, " [ESS]"); - if (sta->capability & WLAN_CAPABILITY_IBSS) - p += sprintf(p, " [IBSS]"); - if (sta->capability & WLAN_CAPABILITY_PRIVACY) - p += sprintf(p, " [WEP]"); - p += sprintf(p, "\n"); - - if ((p - page) > PROC_LIMIT) { - printk(KERN_DEBUG "hostap: ap proc did not fit\n"); - break; - } - } - spin_unlock_bh(&ap->sta_table_lock); - - if ((p - page) <= off) { - *eof = 1; + if (!sta->ap) return 0; + + seq_printf(m, "%pM %d %d %d %d '", + sta->addr, + sta->u.ap.channel, sta->last_rx_signal, + sta->last_rx_silence, sta->last_rx_rate); + + for (i = 0; i < sta->u.ap.ssid_len; i++) { + if (sta->u.ap.ssid[i] >= 32 && sta->u.ap.ssid[i] < 127) + seq_putc(m, sta->u.ap.ssid[i]); + else + seq_printf(m, "<%02x>", sta->u.ap.ssid[i]); } - *start = page + off; - - return (p - page - off); + seq_putc(m, '\''); + if (sta->capability & WLAN_CAPABILITY_ESS) + seq_puts(m, " [ESS]"); + if (sta->capability & WLAN_CAPABILITY_IBSS) + seq_puts(m, " [IBSS]"); + if (sta->capability & WLAN_CAPABILITY_PRIVACY) + seq_puts(m, " [WEP]"); + seq_putc(m, '\n'); + return 0; } + +static void *prism2_ap_proc_start(struct seq_file *m, loff_t *_pos) +{ + struct ap_data *ap = m->private; + spin_lock_bh(&ap->sta_table_lock); + return seq_list_start_head(&ap->sta_list, *_pos); +} + +static void *prism2_ap_proc_next(struct seq_file *m, void *v, loff_t *_pos) +{ + struct ap_data *ap = m->private; + return seq_list_next(v, &ap->sta_list, _pos); +} + +static void prism2_ap_proc_stop(struct seq_file *m, void *v) +{ + struct ap_data *ap = m->private; + spin_unlock_bh(&ap->sta_table_lock); +} + +static const struct seq_operations prism2_ap_proc_seqops = { + .start = prism2_ap_proc_start, + .next = prism2_ap_proc_next, + .stop = prism2_ap_proc_stop, + .show = prism2_ap_proc_show, +}; + +static int prism2_ap_proc_open(struct inode *inode, struct file *file) +{ + int ret = seq_open(file, &prism2_ap_proc_seqops); + if (ret == 0) { + struct seq_file *m = file->private_data; + m->private = PDE_DATA(inode); + } + return ret; +} + +static const struct file_operations prism2_ap_proc_fops = { + .open = prism2_ap_proc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; #endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */ @@ -836,15 +895,12 @@ void hostap_init_ap_proc(local_info_t *local) return; #ifndef PRISM2_NO_PROCFS_DEBUG - create_proc_read_entry("ap_debug", 0, ap->proc, - ap_debug_proc_read, ap); + proc_create_data("ap_debug", 0, ap->proc, &ap_debug_proc_fops, ap); #endif /* PRISM2_NO_PROCFS_DEBUG */ #ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT - create_proc_read_entry("ap_control", 0, ap->proc, - ap_control_proc_read, ap); - create_proc_read_entry("ap", 0, ap->proc, - prism2_ap_proc_read, ap); + proc_create_data("ap_control", 0, ap->proc, &ap_control_proc_fops, ap); + proc_create_data("ap", 0, ap->proc, &prism2_ap_proc_fops, ap); #endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */ } @@ -982,79 +1038,86 @@ static void prism2_send_mgmt(struct net_device *dev, #endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */ -static int prism2_sta_proc_read(char *page, char **start, off_t off, - int count, int *eof, void *data) +static int prism2_sta_proc_show(struct seq_file *m, void *v) { - char *p = page; - struct sta_info *sta = (struct sta_info *) data; + struct sta_info *sta = m->private; int i; /* FIX: possible race condition.. the STA data could have just expired, * but proc entry was still here so that the read could have started; * some locking should be done here.. */ - if (off != 0) { - *eof = 1; - return 0; - } - - p += sprintf(p, "%s=%pM\nusers=%d\naid=%d\n" - "flags=0x%04x%s%s%s%s%s%s%s\n" - "capability=0x%02x\nlisten_interval=%d\nsupported_rates=", - sta->ap ? "AP" : "STA", - sta->addr, atomic_read(&sta->users), sta->aid, - sta->flags, - sta->flags & WLAN_STA_AUTH ? " AUTH" : "", - sta->flags & WLAN_STA_ASSOC ? " ASSOC" : "", - sta->flags & WLAN_STA_PS ? " PS" : "", - sta->flags & WLAN_STA_TIM ? " TIM" : "", - sta->flags & WLAN_STA_PERM ? " PERM" : "", - sta->flags & WLAN_STA_AUTHORIZED ? " AUTHORIZED" : "", - sta->flags & WLAN_STA_PENDING_POLL ? " POLL" : "", - sta->capability, sta->listen_interval); + seq_printf(m, + "%s=%pM\nusers=%d\naid=%d\n" + "flags=0x%04x%s%s%s%s%s%s%s\n" + "capability=0x%02x\nlisten_interval=%d\nsupported_rates=", + sta->ap ? "AP" : "STA", + sta->addr, atomic_read(&sta->users), sta->aid, + sta->flags, + sta->flags & WLAN_STA_AUTH ? " AUTH" : "", + sta->flags & WLAN_STA_ASSOC ? " ASSOC" : "", + sta->flags & WLAN_STA_PS ? " PS" : "", + sta->flags & WLAN_STA_TIM ? " TIM" : "", + sta->flags & WLAN_STA_PERM ? " PERM" : "", + sta->flags & WLAN_STA_AUTHORIZED ? " AUTHORIZED" : "", + sta->flags & WLAN_STA_PENDING_POLL ? " POLL" : "", + sta->capability, sta->listen_interval); /* supported_rates: 500 kbit/s units with msb ignored */ for (i = 0; i < sizeof(sta->supported_rates); i++) if (sta->supported_rates[i] != 0) - p += sprintf(p, "%d%sMbps ", - (sta->supported_rates[i] & 0x7f) / 2, - sta->supported_rates[i] & 1 ? ".5" : ""); - p += sprintf(p, "\njiffies=%lu\nlast_auth=%lu\nlast_assoc=%lu\n" - "last_rx=%lu\nlast_tx=%lu\nrx_packets=%lu\n" - "tx_packets=%lu\n" - "rx_bytes=%lu\ntx_bytes=%lu\nbuffer_count=%d\n" - "last_rx: silence=%d dBm signal=%d dBm rate=%d%s Mbps\n" - "tx_rate=%d\ntx[1M]=%d\ntx[2M]=%d\ntx[5.5M]=%d\n" - "tx[11M]=%d\n" - "rx[1M]=%d\nrx[2M]=%d\nrx[5.5M]=%d\nrx[11M]=%d\n", - jiffies, sta->last_auth, sta->last_assoc, sta->last_rx, - sta->last_tx, - sta->rx_packets, sta->tx_packets, sta->rx_bytes, - sta->tx_bytes, skb_queue_len(&sta->tx_buf), - sta->last_rx_silence, - sta->last_rx_signal, sta->last_rx_rate / 10, - sta->last_rx_rate % 10 ? ".5" : "", - sta->tx_rate, sta->tx_count[0], sta->tx_count[1], - sta->tx_count[2], sta->tx_count[3], sta->rx_count[0], - sta->rx_count[1], sta->rx_count[2], sta->rx_count[3]); + seq_printf(m, "%d%sMbps ", + (sta->supported_rates[i] & 0x7f) / 2, + sta->supported_rates[i] & 1 ? ".5" : ""); + seq_printf(m, + "\njiffies=%lu\nlast_auth=%lu\nlast_assoc=%lu\n" + "last_rx=%lu\nlast_tx=%lu\nrx_packets=%lu\n" + "tx_packets=%lu\n" + "rx_bytes=%lu\ntx_bytes=%lu\nbuffer_count=%d\n" + "last_rx: silence=%d dBm signal=%d dBm rate=%d%s Mbps\n" + "tx_rate=%d\ntx[1M]=%d\ntx[2M]=%d\ntx[5.5M]=%d\n" + "tx[11M]=%d\n" + "rx[1M]=%d\nrx[2M]=%d\nrx[5.5M]=%d\nrx[11M]=%d\n", + jiffies, sta->last_auth, sta->last_assoc, sta->last_rx, + sta->last_tx, + sta->rx_packets, sta->tx_packets, sta->rx_bytes, + sta->tx_bytes, skb_queue_len(&sta->tx_buf), + sta->last_rx_silence, + sta->last_rx_signal, sta->last_rx_rate / 10, + sta->last_rx_rate % 10 ? ".5" : "", + sta->tx_rate, sta->tx_count[0], sta->tx_count[1], + sta->tx_count[2], sta->tx_count[3], sta->rx_count[0], + sta->rx_count[1], sta->rx_count[2], sta->rx_count[3]); if (sta->crypt && sta->crypt->ops && sta->crypt->ops->print_stats) - p = sta->crypt->ops->print_stats(p, sta->crypt->priv); + sta->crypt->ops->print_stats(m, sta->crypt->priv); #ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT if (sta->ap) { if (sta->u.ap.channel >= 0) - p += sprintf(p, "channel=%d\n", sta->u.ap.channel); - p += sprintf(p, "ssid="); - for (i = 0; i < sta->u.ap.ssid_len; i++) - p += sprintf(p, ((sta->u.ap.ssid[i] >= 32 && - sta->u.ap.ssid[i] < 127) ? - "%c" : "<%02x>"), - sta->u.ap.ssid[i]); - p += sprintf(p, "\n"); + seq_printf(m, "channel=%d\n", sta->u.ap.channel); + seq_puts(m, "ssid="); + for (i = 0; i < sta->u.ap.ssid_len; i++) { + if (sta->u.ap.ssid[i] >= 32 && sta->u.ap.ssid[i] < 127) + seq_putc(m, sta->u.ap.ssid[i]); + else + seq_printf(m, "<%02x>", sta->u.ap.ssid[i]); + } + seq_putc(m, '\n'); } #endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */ - return (p - page); + return 0; } +static int prism2_sta_proc_open(struct inode *inode, struct file *file) +{ + return single_open(file, prism2_sta_proc_show, PDE_DATA(inode)); +} + +static const struct file_operations prism2_sta_proc_fops = { + .open = prism2_sta_proc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; static void handle_add_proc_queue(struct work_struct *work) { @@ -1076,9 +1139,9 @@ static void handle_add_proc_queue(struct work_struct *work) if (sta) { sprintf(name, "%pM", sta->addr); - sta->proc = create_proc_read_entry( + sta->proc = proc_create_data( name, 0, ap->proc, - prism2_sta_proc_read, sta); + &prism2_sta_proc_fops, sta); atomic_dec(&sta->users); } diff --git a/drivers/net/wireless/hostap/hostap_download.c b/drivers/net/wireless/hostap/hostap_download.c index e73bf739fd9b..705fe668b969 100644 --- a/drivers/net/wireless/hostap/hostap_download.c +++ b/drivers/net/wireless/hostap/hostap_download.c @@ -174,20 +174,70 @@ static int prism2_pda_ok(u8 *buf) } -static int prism2_download_aux_dump(struct net_device *dev, - unsigned int addr, int len, u8 *buf) +#define prism2_download_aux_dump_npages 65536 + +struct prism2_download_aux_dump { + local_info_t *local; + u16 page[0x80]; +}; + +static int prism2_download_aux_dump_proc_show(struct seq_file *m, void *v) { - int res; - - prism2_enable_aux_port(dev, 1); - res = hfa384x_from_aux(dev, addr, len, buf); - prism2_enable_aux_port(dev, 0); - if (res) - return -1; + struct prism2_download_aux_dump *ctx = m->private; + hfa384x_from_aux(ctx->local->dev, (unsigned long)v - 1, 0x80, ctx->page); + seq_write(m, ctx->page, 0x80); return 0; } +static void *prism2_download_aux_dump_proc_start(struct seq_file *m, loff_t *_pos) +{ + struct prism2_download_aux_dump *ctx = m->private; + prism2_enable_aux_port(ctx->local->dev, 1); + if (*_pos >= prism2_download_aux_dump_npages) + return NULL; + return (void *)((unsigned long)*_pos + 1); +} + +static void *prism2_download_aux_dump_proc_next(struct seq_file *m, void *v, loff_t *_pos) +{ + ++*_pos; + if (*_pos >= prism2_download_aux_dump_npages) + return NULL; + return (void *)((unsigned long)*_pos + 1); +} + +static void prism2_download_aux_dump_proc_stop(struct seq_file *m, void *v) +{ + struct prism2_download_aux_dump *ctx = m->private; + prism2_enable_aux_port(ctx->local->dev, 0); +} + +static const struct seq_operations prism2_download_aux_dump_proc_seqops = { + .start = prism2_download_aux_dump_proc_start, + .next = prism2_download_aux_dump_proc_next, + .stop = prism2_download_aux_dump_proc_stop, + .show = prism2_download_aux_dump_proc_show, +}; + +static int prism2_download_aux_dump_proc_open(struct inode *inode, struct file *file) +{ + int ret = seq_open_private(file, &prism2_download_aux_dump_proc_seqops, + sizeof(struct prism2_download_aux_dump)); + if (ret == 0) { + struct seq_file *m = file->private_data; + m->private = PDE_DATA(inode); + } + return ret; +} + +static const struct file_operations prism2_download_aux_dump_proc_fops = { + .open = prism2_download_aux_dump_proc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release_private, +}; + static u8 * prism2_read_pda(struct net_device *dev) { diff --git a/drivers/net/wireless/hostap/hostap_hw.c b/drivers/net/wireless/hostap/hostap_hw.c index 8e7000fd4414..507ab99eef4e 100644 --- a/drivers/net/wireless/hostap/hostap_hw.c +++ b/drivers/net/wireless/hostap/hostap_hw.c @@ -38,6 +38,7 @@ #include #include #include +#include #include #include #include @@ -129,8 +130,7 @@ static void prism2_check_sta_fw_version(local_info_t *local); #ifdef PRISM2_DOWNLOAD_SUPPORT /* hostap_download.c */ -static int prism2_download_aux_dump(struct net_device *dev, - unsigned int addr, int len, u8 *buf); +static const struct file_operations prism2_download_aux_dump_proc_fops; static u8 * prism2_read_pda(struct net_device *dev); static int prism2_download(local_info_t *local, struct prism2_download_param *param); @@ -2894,19 +2894,12 @@ static void hostap_tick_timer(unsigned long data) #ifndef PRISM2_NO_PROCFS_DEBUG -static int prism2_registers_proc_read(char *page, char **start, off_t off, - int count, int *eof, void *data) +static int prism2_registers_proc_show(struct seq_file *m, void *v) { - char *p = page; - local_info_t *local = (local_info_t *) data; - - if (off != 0) { - *eof = 1; - return 0; - } + local_info_t *local = m->private; #define SHOW_REG(n) \ -p += sprintf(p, #n "=%04x\n", hfa384x_read_reg(local->dev, HFA384X_##n##_OFF)) + seq_printf(m, #n "=%04x\n", hfa384x_read_reg(local->dev, HFA384X_##n##_OFF)) SHOW_REG(CMD); SHOW_REG(PARAM0); @@ -2952,8 +2945,21 @@ p += sprintf(p, #n "=%04x\n", hfa384x_read_reg(local->dev, HFA384X_##n##_OFF)) SHOW_REG(PCI_M1_CTL); #endif /* PRISM2_PCI */ - return (p - page); + return 0; } + +static int prism2_registers_proc_open(struct inode *inode, struct file *file) +{ + return single_open(file, prism2_registers_proc_show, PDE_DATA(inode)); +} + +static const struct file_operations prism2_registers_proc_fops = { + .open = prism2_registers_proc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + #endif /* PRISM2_NO_PROCFS_DEBUG */ @@ -3128,7 +3134,7 @@ prism2_init_local_data(struct prism2_helper_functions *funcs, int card_idx, local->func->reset_port = prism2_reset_port; local->func->schedule_reset = prism2_schedule_reset; #ifdef PRISM2_DOWNLOAD_SUPPORT - local->func->read_aux = prism2_download_aux_dump; + local->func->read_aux_fops = &prism2_download_aux_dump_proc_fops; local->func->download = prism2_download; #endif /* PRISM2_DOWNLOAD_SUPPORT */ local->func->tx = prism2_tx_80211; @@ -3274,8 +3280,8 @@ static int hostap_hw_ready(struct net_device *dev) } hostap_init_proc(local); #ifndef PRISM2_NO_PROCFS_DEBUG - create_proc_read_entry("registers", 0, local->proc, - prism2_registers_proc_read, local); + proc_create_data("registers", 0, local->proc, + &prism2_registers_proc_fops, local); #endif /* PRISM2_NO_PROCFS_DEBUG */ hostap_init_ap_proc(local); return 0; diff --git a/drivers/net/wireless/hostap/hostap_proc.c b/drivers/net/wireless/hostap/hostap_proc.c index dc447c1b5abe..89292cffa764 100644 --- a/drivers/net/wireless/hostap/hostap_proc.c +++ b/drivers/net/wireless/hostap/hostap_proc.c @@ -12,259 +12,297 @@ #ifndef PRISM2_NO_PROCFS_DEBUG -static int prism2_debug_proc_read(char *page, char **start, off_t off, - int count, int *eof, void *data) +static int prism2_debug_proc_show(struct seq_file *m, void *v) { - char *p = page; - local_info_t *local = (local_info_t *) data; + local_info_t *local = m->private; int i; - if (off != 0) { - *eof = 1; - return 0; - } - - p += sprintf(p, "next_txfid=%d next_alloc=%d\n", - local->next_txfid, local->next_alloc); + seq_printf(m, "next_txfid=%d next_alloc=%d\n", + local->next_txfid, local->next_alloc); for (i = 0; i < PRISM2_TXFID_COUNT; i++) - p += sprintf(p, "FID: tx=%04X intransmit=%04X\n", - local->txfid[i], local->intransmitfid[i]); - p += sprintf(p, "FW TX rate control: %d\n", local->fw_tx_rate_control); - p += sprintf(p, "beacon_int=%d\n", local->beacon_int); - p += sprintf(p, "dtim_period=%d\n", local->dtim_period); - p += sprintf(p, "wds_max_connections=%d\n", - local->wds_max_connections); - p += sprintf(p, "dev_enabled=%d\n", local->dev_enabled); - p += sprintf(p, "sw_tick_stuck=%d\n", local->sw_tick_stuck); + seq_printf(m, "FID: tx=%04X intransmit=%04X\n", + local->txfid[i], local->intransmitfid[i]); + seq_printf(m, "FW TX rate control: %d\n", local->fw_tx_rate_control); + seq_printf(m, "beacon_int=%d\n", local->beacon_int); + seq_printf(m, "dtim_period=%d\n", local->dtim_period); + seq_printf(m, "wds_max_connections=%d\n", local->wds_max_connections); + seq_printf(m, "dev_enabled=%d\n", local->dev_enabled); + seq_printf(m, "sw_tick_stuck=%d\n", local->sw_tick_stuck); for (i = 0; i < WEP_KEYS; i++) { if (local->crypt_info.crypt[i] && local->crypt_info.crypt[i]->ops) { - p += sprintf(p, "crypt[%d]=%s\n", i, - local->crypt_info.crypt[i]->ops->name); + seq_printf(m, "crypt[%d]=%s\n", i, + local->crypt_info.crypt[i]->ops->name); } } - p += sprintf(p, "pri_only=%d\n", local->pri_only); - p += sprintf(p, "pci=%d\n", local->func->hw_type == HOSTAP_HW_PCI); - p += sprintf(p, "sram_type=%d\n", local->sram_type); - p += sprintf(p, "no_pri=%d\n", local->no_pri); + seq_printf(m, "pri_only=%d\n", local->pri_only); + seq_printf(m, "pci=%d\n", local->func->hw_type == HOSTAP_HW_PCI); + seq_printf(m, "sram_type=%d\n", local->sram_type); + seq_printf(m, "no_pri=%d\n", local->no_pri); - return (p - page); + return 0; } + +static int prism2_debug_proc_open(struct inode *inode, struct file *file) +{ + return single_open(file, prism2_debug_proc_show, PDE_DATA(inode)); +} + +static const struct file_operations prism2_debug_proc_fops = { + .open = prism2_debug_proc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; #endif /* PRISM2_NO_PROCFS_DEBUG */ -static int prism2_stats_proc_read(char *page, char **start, off_t off, - int count, int *eof, void *data) +static int prism2_stats_proc_show(struct seq_file *m, void *v) { - char *p = page; - local_info_t *local = (local_info_t *) data; + local_info_t *local = m->private; struct comm_tallies_sums *sums = &local->comm_tallies; - if (off != 0) { - *eof = 1; - return 0; - } - - p += sprintf(p, "TxUnicastFrames=%u\n", sums->tx_unicast_frames); - p += sprintf(p, "TxMulticastframes=%u\n", sums->tx_multicast_frames); - p += sprintf(p, "TxFragments=%u\n", sums->tx_fragments); - p += sprintf(p, "TxUnicastOctets=%u\n", sums->tx_unicast_octets); - p += sprintf(p, "TxMulticastOctets=%u\n", sums->tx_multicast_octets); - p += sprintf(p, "TxDeferredTransmissions=%u\n", - sums->tx_deferred_transmissions); - p += sprintf(p, "TxSingleRetryFrames=%u\n", - sums->tx_single_retry_frames); - p += sprintf(p, "TxMultipleRetryFrames=%u\n", - sums->tx_multiple_retry_frames); - p += sprintf(p, "TxRetryLimitExceeded=%u\n", - sums->tx_retry_limit_exceeded); - p += sprintf(p, "TxDiscards=%u\n", sums->tx_discards); - p += sprintf(p, "RxUnicastFrames=%u\n", sums->rx_unicast_frames); - p += sprintf(p, "RxMulticastFrames=%u\n", sums->rx_multicast_frames); - p += sprintf(p, "RxFragments=%u\n", sums->rx_fragments); - p += sprintf(p, "RxUnicastOctets=%u\n", sums->rx_unicast_octets); - p += sprintf(p, "RxMulticastOctets=%u\n", sums->rx_multicast_octets); - p += sprintf(p, "RxFCSErrors=%u\n", sums->rx_fcs_errors); - p += sprintf(p, "RxDiscardsNoBuffer=%u\n", - sums->rx_discards_no_buffer); - p += sprintf(p, "TxDiscardsWrongSA=%u\n", sums->tx_discards_wrong_sa); - p += sprintf(p, "RxDiscardsWEPUndecryptable=%u\n", - sums->rx_discards_wep_undecryptable); - p += sprintf(p, "RxMessageInMsgFragments=%u\n", - sums->rx_message_in_msg_fragments); - p += sprintf(p, "RxMessageInBadMsgFragments=%u\n", - sums->rx_message_in_bad_msg_fragments); + seq_printf(m, "TxUnicastFrames=%u\n", sums->tx_unicast_frames); + seq_printf(m, "TxMulticastframes=%u\n", sums->tx_multicast_frames); + seq_printf(m, "TxFragments=%u\n", sums->tx_fragments); + seq_printf(m, "TxUnicastOctets=%u\n", sums->tx_unicast_octets); + seq_printf(m, "TxMulticastOctets=%u\n", sums->tx_multicast_octets); + seq_printf(m, "TxDeferredTransmissions=%u\n", + sums->tx_deferred_transmissions); + seq_printf(m, "TxSingleRetryFrames=%u\n", sums->tx_single_retry_frames); + seq_printf(m, "TxMultipleRetryFrames=%u\n", + sums->tx_multiple_retry_frames); + seq_printf(m, "TxRetryLimitExceeded=%u\n", + sums->tx_retry_limit_exceeded); + seq_printf(m, "TxDiscards=%u\n", sums->tx_discards); + seq_printf(m, "RxUnicastFrames=%u\n", sums->rx_unicast_frames); + seq_printf(m, "RxMulticastFrames=%u\n", sums->rx_multicast_frames); + seq_printf(m, "RxFragments=%u\n", sums->rx_fragments); + seq_printf(m, "RxUnicastOctets=%u\n", sums->rx_unicast_octets); + seq_printf(m, "RxMulticastOctets=%u\n", sums->rx_multicast_octets); + seq_printf(m, "RxFCSErrors=%u\n", sums->rx_fcs_errors); + seq_printf(m, "RxDiscardsNoBuffer=%u\n", sums->rx_discards_no_buffer); + seq_printf(m, "TxDiscardsWrongSA=%u\n", sums->tx_discards_wrong_sa); + seq_printf(m, "RxDiscardsWEPUndecryptable=%u\n", + sums->rx_discards_wep_undecryptable); + seq_printf(m, "RxMessageInMsgFragments=%u\n", + sums->rx_message_in_msg_fragments); + seq_printf(m, "RxMessageInBadMsgFragments=%u\n", + sums->rx_message_in_bad_msg_fragments); /* FIX: this may grow too long for one page(?) */ - return (p - page); + return 0; } - -static int prism2_wds_proc_read(char *page, char **start, off_t off, - int count, int *eof, void *data) +static int prism2_stats_proc_open(struct inode *inode, struct file *file) { - char *p = page; - local_info_t *local = (local_info_t *) data; - struct list_head *ptr; + return single_open(file, prism2_stats_proc_show, PDE_DATA(inode)); +} + +static const struct file_operations prism2_stats_proc_fops = { + .open = prism2_stats_proc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + + +static int prism2_wds_proc_show(struct seq_file *m, void *v) +{ + struct list_head *ptr = v; struct hostap_interface *iface; - if (off > PROC_LIMIT) { - *eof = 1; - return 0; - } - - read_lock_bh(&local->iface_lock); - list_for_each(ptr, &local->hostap_interfaces) { - iface = list_entry(ptr, struct hostap_interface, list); - if (iface->type != HOSTAP_INTERFACE_WDS) - continue; - p += sprintf(p, "%s\t%pM\n", - iface->dev->name, - iface->u.wds.remote_addr); - if ((p - page) > PROC_LIMIT) { - printk(KERN_DEBUG "%s: wds proc did not fit\n", - local->dev->name); - break; - } - } - read_unlock_bh(&local->iface_lock); - - if ((p - page) <= off) { - *eof = 1; - return 0; - } - - *start = page + off; - - return (p - page - off); + iface = list_entry(ptr, struct hostap_interface, list); + if (iface->type == HOSTAP_INTERFACE_WDS) + seq_printf(m, "%s\t%pM\n", + iface->dev->name, iface->u.wds.remote_addr); + return 0; } - -static int prism2_bss_list_proc_read(char *page, char **start, off_t off, - int count, int *eof, void *data) +static void *prism2_wds_proc_start(struct seq_file *m, loff_t *_pos) { - char *p = page; - local_info_t *local = (local_info_t *) data; - struct list_head *ptr; + local_info_t *local = m->private; + read_lock_bh(&local->iface_lock); + return seq_list_start(&local->hostap_interfaces, *_pos); +} + +static void *prism2_wds_proc_next(struct seq_file *m, void *v, loff_t *_pos) +{ + local_info_t *local = m->private; + return seq_list_next(v, &local->hostap_interfaces, _pos); +} + +static void prism2_wds_proc_stop(struct seq_file *m, void *v) +{ + local_info_t *local = m->private; + read_unlock_bh(&local->iface_lock); +} + +static const struct seq_operations prism2_wds_proc_seqops = { + .start = prism2_wds_proc_start, + .next = prism2_wds_proc_next, + .stop = prism2_wds_proc_stop, + .show = prism2_wds_proc_show, +}; + +static int prism2_wds_proc_open(struct inode *inode, struct file *file) +{ + int ret = seq_open(file, &prism2_wds_proc_seqops); + if (ret == 0) { + struct seq_file *m = file->private_data; + m->private = PDE_DATA(inode); + } + return ret; +} + +static const struct file_operations prism2_wds_proc_fops = { + .open = prism2_wds_proc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + + +static int prism2_bss_list_proc_show(struct seq_file *m, void *v) +{ + local_info_t *local = m->private; + struct list_head *ptr = v; struct hostap_bss_info *bss; int i; - if (off > PROC_LIMIT) { - *eof = 1; + if (ptr == &local->bss_list) { + seq_printf(m, "#BSSID\tlast_update\tcount\tcapab_info\tSSID(txt)\t" + "SSID(hex)\tWPA IE\n"); return 0; } - p += sprintf(p, "#BSSID\tlast_update\tcount\tcapab_info\tSSID(txt)\t" - "SSID(hex)\tWPA IE\n"); - spin_lock_bh(&local->lock); - list_for_each(ptr, &local->bss_list) { - bss = list_entry(ptr, struct hostap_bss_info, list); - p += sprintf(p, "%pM\t%lu\t%u\t0x%x\t", - bss->bssid, bss->last_update, - bss->count, bss->capab_info); - for (i = 0; i < bss->ssid_len; i++) { - p += sprintf(p, "%c", - bss->ssid[i] >= 32 && bss->ssid[i] < 127 ? - bss->ssid[i] : '_'); - } - p += sprintf(p, "\t"); - for (i = 0; i < bss->ssid_len; i++) { - p += sprintf(p, "%02x", bss->ssid[i]); - } - p += sprintf(p, "\t"); - for (i = 0; i < bss->wpa_ie_len; i++) { - p += sprintf(p, "%02x", bss->wpa_ie[i]); - } - p += sprintf(p, "\n"); - if ((p - page) > PROC_LIMIT) { - printk(KERN_DEBUG "%s: BSS proc did not fit\n", - local->dev->name); - break; - } - } - spin_unlock_bh(&local->lock); + bss = list_entry(ptr, struct hostap_bss_info, list); + seq_printf(m, "%pM\t%lu\t%u\t0x%x\t", + bss->bssid, bss->last_update, + bss->count, bss->capab_info); - if ((p - page) <= off) { - *eof = 1; - return 0; - } + for (i = 0; i < bss->ssid_len; i++) + seq_putc(m,bss->ssid[i] >= 32 && bss->ssid[i] < 127 ? + bss->ssid[i] : '_'); - *start = page + off; - - return (p - page - off); + seq_putc(m, '\t'); + for (i = 0; i < bss->ssid_len; i++) + seq_printf(m, "%02x", bss->ssid[i]); + seq_putc(m, '\t'); + for (i = 0; i < bss->wpa_ie_len; i++) + seq_printf(m, "%02x", bss->wpa_ie[i]); + seq_putc(m, '\n'); + return 0; } - -static int prism2_crypt_proc_read(char *page, char **start, off_t off, - int count, int *eof, void *data) +static void *prism2_bss_list_proc_start(struct seq_file *m, loff_t *_pos) { - char *p = page; - local_info_t *local = (local_info_t *) data; + local_info_t *local = m->private; + spin_lock_bh(&local->lock); + return seq_list_start_head(&local->bss_list, *_pos); +} + +static void *prism2_bss_list_proc_next(struct seq_file *m, void *v, loff_t *_pos) +{ + local_info_t *local = m->private; + return seq_list_next(v, &local->bss_list, _pos); +} + +static void prism2_bss_list_proc_stop(struct seq_file *m, void *v) +{ + local_info_t *local = m->private; + spin_unlock_bh(&local->lock); +} + +static const struct seq_operations prism2_bss_list_proc_seqops = { + .start = prism2_bss_list_proc_start, + .next = prism2_bss_list_proc_next, + .stop = prism2_bss_list_proc_stop, + .show = prism2_bss_list_proc_show, +}; + +static int prism2_bss_list_proc_open(struct inode *inode, struct file *file) +{ + int ret = seq_open(file, &prism2_bss_list_proc_seqops); + if (ret == 0) { + struct seq_file *m = file->private_data; + m->private = PDE_DATA(inode); + } + return ret; +} + +static const struct file_operations prism2_bss_list_proc_fops = { + .open = prism2_bss_list_proc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + + +static int prism2_crypt_proc_show(struct seq_file *m, void *v) +{ + local_info_t *local = m->private; int i; - if (off > PROC_LIMIT) { - *eof = 1; - return 0; - } - - p += sprintf(p, "tx_keyidx=%d\n", local->crypt_info.tx_keyidx); + seq_printf(m, "tx_keyidx=%d\n", local->crypt_info.tx_keyidx); for (i = 0; i < WEP_KEYS; i++) { if (local->crypt_info.crypt[i] && local->crypt_info.crypt[i]->ops && local->crypt_info.crypt[i]->ops->print_stats) { - p = local->crypt_info.crypt[i]->ops->print_stats( - p, local->crypt_info.crypt[i]->priv); + local->crypt_info.crypt[i]->ops->print_stats( + m, local->crypt_info.crypt[i]->priv); } } - - if ((p - page) <= off) { - *eof = 1; - return 0; - } - - *start = page + off; - - return (p - page - off); + return 0; } - -static int prism2_pda_proc_read(char *page, char **start, off_t off, - int count, int *eof, void *data) +static int prism2_crypt_proc_open(struct inode *inode, struct file *file) { - local_info_t *local = (local_info_t *) data; + return single_open(file, prism2_crypt_proc_show, PDE_DATA(inode)); +} - if (local->pda == NULL || off >= PRISM2_PDA_SIZE) { - *eof = 1; +static const struct file_operations prism2_crypt_proc_fops = { + .open = prism2_crypt_proc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + + +static ssize_t prism2_pda_proc_read(struct file *file, char __user *buf, + size_t count, loff_t *_pos) +{ + local_info_t *local = PDE_DATA(file_inode(file)); + size_t off; + + if (local->pda == NULL || *_pos >= PRISM2_PDA_SIZE) return 0; - } - if (off + count > PRISM2_PDA_SIZE) + off = *_pos; + if (count > PRISM2_PDA_SIZE - off) count = PRISM2_PDA_SIZE - off; - - memcpy(page, local->pda + off, count); + if (copy_to_user(buf, local->pda + off, count) != 0) + return -EFAULT; + *_pos += count; return count; } +static const struct file_operations prism2_pda_proc_fops = { + .read = prism2_pda_proc_read, + .llseek = generic_file_llseek, +}; -static int prism2_aux_dump_proc_read(char *page, char **start, off_t off, - int count, int *eof, void *data) + +static ssize_t prism2_aux_dump_proc_no_read(struct file *file, char __user *buf, + size_t bufsize, loff_t *_pos) { - local_info_t *local = (local_info_t *) data; - - if (local->func->read_aux == NULL) { - *eof = 1; - return 0; - } - - if (local->func->read_aux(local->dev, off, count, page)) { - *eof = 1; - return 0; - } - *start = page; - - return count; + return 0; } +static const struct file_operations prism2_aux_dump_proc_fops = { + .read = prism2_aux_dump_proc_no_read, +}; + #ifdef PRISM2_IO_DEBUG static int prism2_io_debug_proc_read(char *page, char **start, off_t off, @@ -306,82 +344,108 @@ static int prism2_io_debug_proc_read(char *page, char **start, off_t off, #ifndef PRISM2_NO_STATION_MODES -static int prism2_scan_results_proc_read(char *page, char **start, off_t off, - int count, int *eof, void *data) +static int prism2_scan_results_proc_show(struct seq_file *m, void *v) { - char *p = page; - local_info_t *local = (local_info_t *) data; - int entry, i, len, total = 0; + local_info_t *local = m->private; + unsigned long entry; + int i, len; struct hfa384x_hostscan_result *scanres; - u8 *pos; + u8 *p; - p += sprintf(p, "CHID ANL SL BcnInt Capab Rate BSSID ATIM SupRates " - "SSID\n"); - - spin_lock_bh(&local->lock); - for (entry = 0; entry < local->last_scan_results_count; entry++) { - scanres = &local->last_scan_results[entry]; - - if (total + (p - page) <= off) { - total += p - page; - p = page; - } - if (total + (p - page) > off + count) - break; - if ((p - page) > (PAGE_SIZE - 200)) - break; - - p += sprintf(p, "%d %d %d %d 0x%02x %d %pM %d ", - le16_to_cpu(scanres->chid), - (s16) le16_to_cpu(scanres->anl), - (s16) le16_to_cpu(scanres->sl), - le16_to_cpu(scanres->beacon_interval), - le16_to_cpu(scanres->capability), - le16_to_cpu(scanres->rate), - scanres->bssid, - le16_to_cpu(scanres->atim)); - - pos = scanres->sup_rates; - for (i = 0; i < sizeof(scanres->sup_rates); i++) { - if (pos[i] == 0) - break; - p += sprintf(p, "<%02x>", pos[i]); - } - p += sprintf(p, " "); - - pos = scanres->ssid; - len = le16_to_cpu(scanres->ssid_len); - if (len > 32) - len = 32; - for (i = 0; i < len; i++) { - unsigned char c = pos[i]; - if (c >= 32 && c < 127) - p += sprintf(p, "%c", c); - else - p += sprintf(p, "<%02x>", c); - } - p += sprintf(p, "\n"); - } - spin_unlock_bh(&local->lock); - - total += (p - page); - if (total >= off + count) - *eof = 1; - - if (total < off) { - *eof = 1; + if (v == SEQ_START_TOKEN) { + seq_printf(m, + "CHID ANL SL BcnInt Capab Rate BSSID ATIM SupRates SSID\n"); return 0; } - len = total - off; - if (len > (p - page)) - len = p - page; - *start = p - len; - if (len > count) - len = count; + entry = (unsigned long)v - 2; + scanres = &local->last_scan_results[entry]; - return len; + seq_printf(m, "%d %d %d %d 0x%02x %d %pM %d ", + le16_to_cpu(scanres->chid), + (s16) le16_to_cpu(scanres->anl), + (s16) le16_to_cpu(scanres->sl), + le16_to_cpu(scanres->beacon_interval), + le16_to_cpu(scanres->capability), + le16_to_cpu(scanres->rate), + scanres->bssid, + le16_to_cpu(scanres->atim)); + + p = scanres->sup_rates; + for (i = 0; i < sizeof(scanres->sup_rates); i++) { + if (p[i] == 0) + break; + seq_printf(m, "<%02x>", p[i]); + } + seq_putc(m, ' '); + + p = scanres->ssid; + len = le16_to_cpu(scanres->ssid_len); + if (len > 32) + len = 32; + for (i = 0; i < len; i++) { + unsigned char c = p[i]; + if (c >= 32 && c < 127) + seq_putc(m, c); + else + seq_printf(m, "<%02x>", c); + } + seq_putc(m, '\n'); + return 0; } + +static void *prism2_scan_results_proc_start(struct seq_file *m, loff_t *_pos) +{ + local_info_t *local = m->private; + spin_lock_bh(&local->lock); + + /* We have a header (pos 0) + N results to show (pos 1...N) */ + if (*_pos > local->last_scan_results_count) + return NULL; + return (void *)(unsigned long)(*_pos + 1); /* 0 would be EOF */ +} + +static void *prism2_scan_results_proc_next(struct seq_file *m, void *v, loff_t *_pos) +{ + local_info_t *local = m->private; + + ++*_pos; + if (*_pos > local->last_scan_results_count) + return NULL; + return (void *)(unsigned long)(*_pos + 1); /* 0 would be EOF */ +} + +static void prism2_scan_results_proc_stop(struct seq_file *m, void *v) +{ + local_info_t *local = m->private; + spin_unlock_bh(&local->lock); +} + +static const struct seq_operations prism2_scan_results_proc_seqops = { + .start = prism2_scan_results_proc_start, + .next = prism2_scan_results_proc_next, + .stop = prism2_scan_results_proc_stop, + .show = prism2_scan_results_proc_show, +}; + +static int prism2_scan_results_proc_open(struct inode *inode, struct file *file) +{ + int ret = seq_open(file, &prism2_scan_results_proc_seqops); + if (ret == 0) { + struct seq_file *m = file->private_data; + m->private = PDE_DATA(inode); + } + return ret; +} + +static const struct file_operations prism2_scan_results_proc_fops = { + .open = prism2_scan_results_proc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + + #endif /* PRISM2_NO_STATION_MODES */ @@ -403,28 +467,29 @@ void hostap_init_proc(local_info_t *local) } #ifndef PRISM2_NO_PROCFS_DEBUG - create_proc_read_entry("debug", 0, local->proc, - prism2_debug_proc_read, local); + proc_create_data("debug", 0, local->proc, + &prism2_debug_proc_fops, local); #endif /* PRISM2_NO_PROCFS_DEBUG */ - create_proc_read_entry("stats", 0, local->proc, - prism2_stats_proc_read, local); - create_proc_read_entry("wds", 0, local->proc, - prism2_wds_proc_read, local); - create_proc_read_entry("pda", 0, local->proc, - prism2_pda_proc_read, local); - create_proc_read_entry("aux_dump", 0, local->proc, - prism2_aux_dump_proc_read, local); - create_proc_read_entry("bss_list", 0, local->proc, - prism2_bss_list_proc_read, local); - create_proc_read_entry("crypt", 0, local->proc, - prism2_crypt_proc_read, local); + proc_create_data("stats", 0, local->proc, + &prism2_stats_proc_fops, local); + proc_create_data("wds", 0, local->proc, + &prism2_wds_proc_fops, local); + proc_create_data("pda", 0, local->proc, + &prism2_pda_proc_fops, local); + proc_create_data("aux_dump", 0, local->proc, + local->func->read_aux_fops ?: &prism2_aux_dump_proc_fops, + local); + proc_create_data("bss_list", 0, local->proc, + &prism2_bss_list_proc_fops, local); + proc_create_data("crypt", 0, local->proc, + &prism2_crypt_proc_fops, local); #ifdef PRISM2_IO_DEBUG - create_proc_read_entry("io_debug", 0, local->proc, - prism2_io_debug_proc_read, local); + proc_create_data("io_debug", 0, local->proc, + &prism2_io_debug_proc_fops, local); #endif /* PRISM2_IO_DEBUG */ #ifndef PRISM2_NO_STATION_MODES - create_proc_read_entry("scan_results", 0, local->proc, - prism2_scan_results_proc_read, local); + proc_create_data("scan_results", 0, local->proc, + &prism2_scan_results_proc_fops, local); #endif /* PRISM2_NO_STATION_MODES */ } diff --git a/drivers/net/wireless/hostap/hostap_wlan.h b/drivers/net/wireless/hostap/hostap_wlan.h index 7bb0b4b3f2cb..57904015380f 100644 --- a/drivers/net/wireless/hostap/hostap_wlan.h +++ b/drivers/net/wireless/hostap/hostap_wlan.h @@ -596,8 +596,7 @@ struct prism2_helper_functions { struct prism2_download_param *param); int (*tx)(struct sk_buff *skb, struct net_device *dev); int (*set_tim)(struct net_device *dev, int aid, int set); - int (*read_aux)(struct net_device *dev, unsigned addr, int len, - u8 *buf); + const struct file_operations *read_aux_fops; int need_tx_headroom; /* number of bytes of headroom needed before * IEEE 802.11 header */ diff --git a/drivers/staging/rtl8192e/rtllib_crypt_ccmp.c b/drivers/staging/rtl8192e/rtllib_crypt_ccmp.c index 4217b88e6fc3..e51cb49ce10e 100644 --- a/drivers/staging/rtl8192e/rtllib_crypt_ccmp.c +++ b/drivers/staging/rtl8192e/rtllib_crypt_ccmp.c @@ -412,19 +412,18 @@ static int rtllib_ccmp_get_key(void *key, int len, u8 *seq, void *priv) } -static char *rtllib_ccmp_print_stats(char *p, void *priv) +static void rtllib_ccmp_print_stats(struct seq_file *m, void *priv) { struct rtllib_ccmp_data *ccmp = priv; - p += sprintf(p, "key[%d] alg=CCMP key_set=%d " - "tx_pn=%pM rx_pn=%pM " - "format_errors=%d replays=%d decrypt_errors=%d\n", - ccmp->key_idx, ccmp->key_set, - ccmp->tx_pn, ccmp->rx_pn, - ccmp->dot11RSNAStatsCCMPFormatErrors, - ccmp->dot11RSNAStatsCCMPReplays, - ccmp->dot11RSNAStatsCCMPDecryptErrors); - - return p; + seq_printf(m, + "key[%d] alg=CCMP key_set=%d " + "tx_pn=%pM rx_pn=%pM " + "format_errors=%d replays=%d decrypt_errors=%d\n", + ccmp->key_idx, ccmp->key_set, + ccmp->tx_pn, ccmp->rx_pn, + ccmp->dot11RSNAStatsCCMPFormatErrors, + ccmp->dot11RSNAStatsCCMPReplays, + ccmp->dot11RSNAStatsCCMPDecryptErrors); } static struct lib80211_crypto_ops rtllib_crypt_ccmp = { diff --git a/drivers/staging/rtl8192e/rtllib_crypt_tkip.c b/drivers/staging/rtl8192e/rtllib_crypt_tkip.c index 800925053fb0..5cfd73baf1cc 100644 --- a/drivers/staging/rtl8192e/rtllib_crypt_tkip.c +++ b/drivers/staging/rtl8192e/rtllib_crypt_tkip.c @@ -708,30 +708,30 @@ static int rtllib_tkip_get_key(void *key, int len, u8 *seq, void *priv) } -static char *rtllib_tkip_print_stats(char *p, void *priv) +static void rtllib_tkip_print_stats(struct seq_file *m, void *priv) { struct rtllib_tkip_data *tkip = priv; - p += sprintf(p, "key[%d] alg=TKIP key_set=%d " - "tx_pn=%02x%02x%02x%02x%02x%02x " - "rx_pn=%02x%02x%02x%02x%02x%02x " - "replays=%d icv_errors=%d local_mic_failures=%d\n", - tkip->key_idx, tkip->key_set, - (tkip->tx_iv32 >> 24) & 0xff, - (tkip->tx_iv32 >> 16) & 0xff, - (tkip->tx_iv32 >> 8) & 0xff, - tkip->tx_iv32 & 0xff, - (tkip->tx_iv16 >> 8) & 0xff, - tkip->tx_iv16 & 0xff, - (tkip->rx_iv32 >> 24) & 0xff, - (tkip->rx_iv32 >> 16) & 0xff, - (tkip->rx_iv32 >> 8) & 0xff, - tkip->rx_iv32 & 0xff, - (tkip->rx_iv16 >> 8) & 0xff, - tkip->rx_iv16 & 0xff, - tkip->dot11RSNAStatsTKIPReplays, - tkip->dot11RSNAStatsTKIPICVErrors, - tkip->dot11RSNAStatsTKIPLocalMICFailures); - return p; + seq_printf(m, + "key[%d] alg=TKIP key_set=%d " + "tx_pn=%02x%02x%02x%02x%02x%02x " + "rx_pn=%02x%02x%02x%02x%02x%02x " + "replays=%d icv_errors=%d local_mic_failures=%d\n", + tkip->key_idx, tkip->key_set, + (tkip->tx_iv32 >> 24) & 0xff, + (tkip->tx_iv32 >> 16) & 0xff, + (tkip->tx_iv32 >> 8) & 0xff, + tkip->tx_iv32 & 0xff, + (tkip->tx_iv16 >> 8) & 0xff, + tkip->tx_iv16 & 0xff, + (tkip->rx_iv32 >> 24) & 0xff, + (tkip->rx_iv32 >> 16) & 0xff, + (tkip->rx_iv32 >> 8) & 0xff, + tkip->rx_iv32 & 0xff, + (tkip->rx_iv16 >> 8) & 0xff, + tkip->rx_iv16 & 0xff, + tkip->dot11RSNAStatsTKIPReplays, + tkip->dot11RSNAStatsTKIPICVErrors, + tkip->dot11RSNAStatsTKIPLocalMICFailures); } static struct lib80211_crypto_ops rtllib_crypt_tkip = { diff --git a/drivers/staging/rtl8192e/rtllib_crypt_wep.c b/drivers/staging/rtl8192e/rtllib_crypt_wep.c index 8cdf38913a33..c4df6e01ef74 100644 --- a/drivers/staging/rtl8192e/rtllib_crypt_wep.c +++ b/drivers/staging/rtl8192e/rtllib_crypt_wep.c @@ -247,12 +247,10 @@ static int prism2_wep_get_key(void *key, int len, u8 *seq, void *priv) } -static char *prism2_wep_print_stats(char *p, void *priv) +static void prism2_wep_print_stats(struct seq_file *m, void *priv) { struct prism2_wep_data *wep = priv; - p += sprintf(p, "key[%d] alg=WEP len=%d\n", - wep->key_idx, wep->key_len); - return p; + seq_printf(m, "key[%d] alg=WEP len=%d\n", wep->key_idx, wep->key_len); } static struct lib80211_crypto_ops rtllib_crypt_wep = { diff --git a/include/net/lib80211.h b/include/net/lib80211.h index d178c26a5558..be95b9262801 100644 --- a/include/net/lib80211.h +++ b/include/net/lib80211.h @@ -30,6 +30,8 @@ #include #include #include +#include + /* print_ssid() is intended to be used in debug (and possibly error) * messages. It should never be used for passing ssid to user space. */ const char *print_ssid(char *buf, const char *ssid, u8 ssid_len); @@ -75,7 +77,7 @@ struct lib80211_crypto_ops { /* procfs handler for printing out key information and possible * statistics */ - char *(*print_stats) (char *p, void *priv); + void (*print_stats) (struct seq_file *m, void *priv); /* Crypto specific flag get/set for configuration settings */ unsigned long (*get_flags) (void *priv); diff --git a/net/wireless/lib80211_crypt_ccmp.c b/net/wireless/lib80211_crypt_ccmp.c index 1526c211db66..dc0e59e53dbf 100644 --- a/net/wireless/lib80211_crypt_ccmp.c +++ b/net/wireless/lib80211_crypt_ccmp.c @@ -430,24 +430,23 @@ static int lib80211_ccmp_get_key(void *key, int len, u8 * seq, void *priv) return CCMP_TK_LEN; } -static char *lib80211_ccmp_print_stats(char *p, void *priv) +static void lib80211_ccmp_print_stats(struct seq_file *m, void *priv) { struct lib80211_ccmp_data *ccmp = priv; - p += sprintf(p, "key[%d] alg=CCMP key_set=%d " - "tx_pn=%02x%02x%02x%02x%02x%02x " - "rx_pn=%02x%02x%02x%02x%02x%02x " - "format_errors=%d replays=%d decrypt_errors=%d\n", - ccmp->key_idx, ccmp->key_set, - ccmp->tx_pn[0], ccmp->tx_pn[1], ccmp->tx_pn[2], - ccmp->tx_pn[3], ccmp->tx_pn[4], ccmp->tx_pn[5], - ccmp->rx_pn[0], ccmp->rx_pn[1], ccmp->rx_pn[2], - ccmp->rx_pn[3], ccmp->rx_pn[4], ccmp->rx_pn[5], - ccmp->dot11RSNAStatsCCMPFormatErrors, - ccmp->dot11RSNAStatsCCMPReplays, - ccmp->dot11RSNAStatsCCMPDecryptErrors); - - return p; + seq_printf(m, + "key[%d] alg=CCMP key_set=%d " + "tx_pn=%02x%02x%02x%02x%02x%02x " + "rx_pn=%02x%02x%02x%02x%02x%02x " + "format_errors=%d replays=%d decrypt_errors=%d\n", + ccmp->key_idx, ccmp->key_set, + ccmp->tx_pn[0], ccmp->tx_pn[1], ccmp->tx_pn[2], + ccmp->tx_pn[3], ccmp->tx_pn[4], ccmp->tx_pn[5], + ccmp->rx_pn[0], ccmp->rx_pn[1], ccmp->rx_pn[2], + ccmp->rx_pn[3], ccmp->rx_pn[4], ccmp->rx_pn[5], + ccmp->dot11RSNAStatsCCMPFormatErrors, + ccmp->dot11RSNAStatsCCMPReplays, + ccmp->dot11RSNAStatsCCMPDecryptErrors); } static struct lib80211_crypto_ops lib80211_crypt_ccmp = { diff --git a/net/wireless/lib80211_crypt_tkip.c b/net/wireless/lib80211_crypt_tkip.c index d475cfc8568f..8c90ba79e56e 100644 --- a/net/wireless/lib80211_crypt_tkip.c +++ b/net/wireless/lib80211_crypt_tkip.c @@ -703,30 +703,30 @@ static int lib80211_tkip_get_key(void *key, int len, u8 * seq, void *priv) return TKIP_KEY_LEN; } -static char *lib80211_tkip_print_stats(char *p, void *priv) +static void lib80211_tkip_print_stats(struct seq_file *m, void *priv) { struct lib80211_tkip_data *tkip = priv; - p += sprintf(p, "key[%d] alg=TKIP key_set=%d " - "tx_pn=%02x%02x%02x%02x%02x%02x " - "rx_pn=%02x%02x%02x%02x%02x%02x " - "replays=%d icv_errors=%d local_mic_failures=%d\n", - tkip->key_idx, tkip->key_set, - (tkip->tx_iv32 >> 24) & 0xff, - (tkip->tx_iv32 >> 16) & 0xff, - (tkip->tx_iv32 >> 8) & 0xff, - tkip->tx_iv32 & 0xff, - (tkip->tx_iv16 >> 8) & 0xff, - tkip->tx_iv16 & 0xff, - (tkip->rx_iv32 >> 24) & 0xff, - (tkip->rx_iv32 >> 16) & 0xff, - (tkip->rx_iv32 >> 8) & 0xff, - tkip->rx_iv32 & 0xff, - (tkip->rx_iv16 >> 8) & 0xff, - tkip->rx_iv16 & 0xff, - tkip->dot11RSNAStatsTKIPReplays, - tkip->dot11RSNAStatsTKIPICVErrors, - tkip->dot11RSNAStatsTKIPLocalMICFailures); - return p; + seq_printf(m, + "key[%d] alg=TKIP key_set=%d " + "tx_pn=%02x%02x%02x%02x%02x%02x " + "rx_pn=%02x%02x%02x%02x%02x%02x " + "replays=%d icv_errors=%d local_mic_failures=%d\n", + tkip->key_idx, tkip->key_set, + (tkip->tx_iv32 >> 24) & 0xff, + (tkip->tx_iv32 >> 16) & 0xff, + (tkip->tx_iv32 >> 8) & 0xff, + tkip->tx_iv32 & 0xff, + (tkip->tx_iv16 >> 8) & 0xff, + tkip->tx_iv16 & 0xff, + (tkip->rx_iv32 >> 24) & 0xff, + (tkip->rx_iv32 >> 16) & 0xff, + (tkip->rx_iv32 >> 8) & 0xff, + tkip->rx_iv32 & 0xff, + (tkip->rx_iv16 >> 8) & 0xff, + tkip->rx_iv16 & 0xff, + tkip->dot11RSNAStatsTKIPReplays, + tkip->dot11RSNAStatsTKIPICVErrors, + tkip->dot11RSNAStatsTKIPLocalMICFailures); } static struct lib80211_crypto_ops lib80211_crypt_tkip = { diff --git a/net/wireless/lib80211_crypt_wep.c b/net/wireless/lib80211_crypt_wep.c index c1304018fc1c..1c292e4ea7b6 100644 --- a/net/wireless/lib80211_crypt_wep.c +++ b/net/wireless/lib80211_crypt_wep.c @@ -253,11 +253,10 @@ static int lib80211_wep_get_key(void *key, int len, u8 * seq, void *priv) return wep->key_len; } -static char *lib80211_wep_print_stats(char *p, void *priv) +static void lib80211_wep_print_stats(struct seq_file *m, void *priv) { struct lib80211_wep_data *wep = priv; - p += sprintf(p, "key[%d] alg=WEP len=%d\n", wep->key_idx, wep->key_len); - return p; + seq_printf(m, "key[%d] alg=WEP len=%d\n", wep->key_idx, wep->key_len); } static struct lib80211_crypto_ops lib80211_crypt_wep = { From c7f079ca30bc719f6f09524fb2119980c4b45d8f Mon Sep 17 00:00:00 2001 From: David Howells Date: Wed, 10 Apr 2013 13:33:21 +0100 Subject: [PATCH 168/204] megaraid: Don't use create_proc_read_entry() Don't use create_proc_read_entry() as that is deprecated, but rather use proc_create_data() and seq_file instead. Signed-off-by: David Howells cc: Neela Syam Kolli cc: James E.J. Bottomley cc: linux-scsi@vger.kernel.org Signed-off-by: Al Viro --- drivers/scsi/megaraid.c | 1040 ++++++++++++++------------------------- drivers/scsi/megaraid.h | 17 - 2 files changed, 382 insertions(+), 675 deletions(-) diff --git a/drivers/scsi/megaraid.c b/drivers/scsi/megaraid.c index 9504ec0ec682..a1c90bd34e78 100644 --- a/drivers/scsi/megaraid.c +++ b/drivers/scsi/megaraid.c @@ -39,6 +39,7 @@ #include #include #include +#include #include #include #include @@ -2069,385 +2070,201 @@ mega_free_inquiry(void *inquiry, dma_addr_t dma_handle, struct pci_dev *pdev) #ifdef CONFIG_PROC_FS /* Following code handles /proc fs */ -#define CREATE_READ_PROC(string, func) create_proc_read_entry(string, \ - S_IRUSR | S_IFREG, \ - controller_proc_dir_entry, \ - func, adapter) - /** - * mega_create_proc_entry() - * @index - index in soft state array - * @parent - parent node for this /proc entry - * - * Creates /proc entries for our controllers. - */ -static void -mega_create_proc_entry(int index, struct proc_dir_entry *parent) -{ - struct proc_dir_entry *controller_proc_dir_entry = NULL; - u8 string[64] = { 0 }; - adapter_t *adapter = hba_soft_state[index]; - - sprintf(string, "hba%d", adapter->host->host_no); - - controller_proc_dir_entry = - adapter->controller_proc_dir_entry = proc_mkdir(string, parent); - - if(!controller_proc_dir_entry) { - printk(KERN_WARNING "\nmegaraid: proc_mkdir failed\n"); - return; - } - adapter->proc_read = CREATE_READ_PROC("config", proc_read_config); - adapter->proc_stat = CREATE_READ_PROC("stat", proc_read_stat); - adapter->proc_mbox = CREATE_READ_PROC("mailbox", proc_read_mbox); -#if MEGA_HAVE_ENH_PROC - adapter->proc_rr = CREATE_READ_PROC("rebuild-rate", proc_rebuild_rate); - adapter->proc_battery = CREATE_READ_PROC("battery-status", - proc_battery); - - /* - * Display each physical drive on its channel - */ - adapter->proc_pdrvstat[0] = CREATE_READ_PROC("diskdrives-ch0", - proc_pdrv_ch0); - adapter->proc_pdrvstat[1] = CREATE_READ_PROC("diskdrives-ch1", - proc_pdrv_ch1); - adapter->proc_pdrvstat[2] = CREATE_READ_PROC("diskdrives-ch2", - proc_pdrv_ch2); - adapter->proc_pdrvstat[3] = CREATE_READ_PROC("diskdrives-ch3", - proc_pdrv_ch3); - - /* - * Display a set of up to 10 logical drive through each of following - * /proc entries - */ - adapter->proc_rdrvstat[0] = CREATE_READ_PROC("raiddrives-0-9", - proc_rdrv_10); - adapter->proc_rdrvstat[1] = CREATE_READ_PROC("raiddrives-10-19", - proc_rdrv_20); - adapter->proc_rdrvstat[2] = CREATE_READ_PROC("raiddrives-20-29", - proc_rdrv_30); - adapter->proc_rdrvstat[3] = CREATE_READ_PROC("raiddrives-30-39", - proc_rdrv_40); -#endif -} - - -/** - * proc_read_config() - * @page - buffer to write the data in - * @start - where the actual data has been written in page - * @offset - same meaning as the read system call - * @count - same meaning as the read system call - * @eof - set if no more data needs to be returned - * @data - pointer to our soft state + * proc_show_config() + * @m - Synthetic file construction data + * @v - File iterator * * Display configuration information about the controller. */ static int -proc_read_config(char *page, char **start, off_t offset, int count, int *eof, - void *data) +proc_show_config(struct seq_file *m, void *v) { - adapter_t *adapter = (adapter_t *)data; - int len = 0; - - len += sprintf(page+len, "%s", MEGARAID_VERSION); + adapter_t *adapter = m->private; + seq_puts(m, MEGARAID_VERSION); if(adapter->product_info.product_name[0]) - len += sprintf(page+len, "%s\n", - adapter->product_info.product_name); + seq_printf(m, "%s\n", adapter->product_info.product_name); - len += sprintf(page+len, "Controller Type: "); + seq_puts(m, "Controller Type: "); - if( adapter->flag & BOARD_MEMMAP ) { - len += sprintf(page+len, - "438/466/467/471/493/518/520/531/532\n"); - } - else { - len += sprintf(page+len, - "418/428/434\n"); - } + if( adapter->flag & BOARD_MEMMAP ) + seq_puts(m, "438/466/467/471/493/518/520/531/532\n"); + else + seq_puts(m, "418/428/434\n"); - if(adapter->flag & BOARD_40LD) { - len += sprintf(page+len, - "Controller Supports 40 Logical Drives\n"); - } + if(adapter->flag & BOARD_40LD) + seq_puts(m, "Controller Supports 40 Logical Drives\n"); - if(adapter->flag & BOARD_64BIT) { - len += sprintf(page+len, - "Controller capable of 64-bit memory addressing\n"); - } - if( adapter->has_64bit_addr ) { - len += sprintf(page+len, - "Controller using 64-bit memory addressing\n"); - } - else { - len += sprintf(page+len, - "Controller is not using 64-bit memory addressing\n"); - } + if(adapter->flag & BOARD_64BIT) + seq_puts(m, "Controller capable of 64-bit memory addressing\n"); + if( adapter->has_64bit_addr ) + seq_puts(m, "Controller using 64-bit memory addressing\n"); + else + seq_puts(m, "Controller is not using 64-bit memory addressing\n"); - len += sprintf(page+len, "Base = %08lx, Irq = %d, ", adapter->base, - adapter->host->irq); + seq_printf(m, "Base = %08lx, Irq = %d, ", + adapter->base, adapter->host->irq); - len += sprintf(page+len, "Logical Drives = %d, Channels = %d\n", - adapter->numldrv, adapter->product_info.nchannels); + seq_printf(m, "Logical Drives = %d, Channels = %d\n", + adapter->numldrv, adapter->product_info.nchannels); - len += sprintf(page+len, "Version =%s:%s, DRAM = %dMb\n", - adapter->fw_version, adapter->bios_version, - adapter->product_info.dram_size); + seq_printf(m, "Version =%s:%s, DRAM = %dMb\n", + adapter->fw_version, adapter->bios_version, + adapter->product_info.dram_size); - len += sprintf(page+len, - "Controller Queue Depth = %d, Driver Queue Depth = %d\n", - adapter->product_info.max_commands, adapter->max_cmds); + seq_printf(m, "Controller Queue Depth = %d, Driver Queue Depth = %d\n", + adapter->product_info.max_commands, adapter->max_cmds); - len += sprintf(page+len, "support_ext_cdb = %d\n", - adapter->support_ext_cdb); - len += sprintf(page+len, "support_random_del = %d\n", - adapter->support_random_del); - len += sprintf(page+len, "boot_ldrv_enabled = %d\n", - adapter->boot_ldrv_enabled); - len += sprintf(page+len, "boot_ldrv = %d\n", - adapter->boot_ldrv); - len += sprintf(page+len, "boot_pdrv_enabled = %d\n", - adapter->boot_pdrv_enabled); - len += sprintf(page+len, "boot_pdrv_ch = %d\n", - adapter->boot_pdrv_ch); - len += sprintf(page+len, "boot_pdrv_tgt = %d\n", - adapter->boot_pdrv_tgt); - len += sprintf(page+len, "quiescent = %d\n", - atomic_read(&adapter->quiescent)); - len += sprintf(page+len, "has_cluster = %d\n", - adapter->has_cluster); + seq_printf(m, "support_ext_cdb = %d\n", adapter->support_ext_cdb); + seq_printf(m, "support_random_del = %d\n", adapter->support_random_del); + seq_printf(m, "boot_ldrv_enabled = %d\n", adapter->boot_ldrv_enabled); + seq_printf(m, "boot_ldrv = %d\n", adapter->boot_ldrv); + seq_printf(m, "boot_pdrv_enabled = %d\n", adapter->boot_pdrv_enabled); + seq_printf(m, "boot_pdrv_ch = %d\n", adapter->boot_pdrv_ch); + seq_printf(m, "boot_pdrv_tgt = %d\n", adapter->boot_pdrv_tgt); + seq_printf(m, "quiescent = %d\n", + atomic_read(&adapter->quiescent)); + seq_printf(m, "has_cluster = %d\n", adapter->has_cluster); - len += sprintf(page+len, "\nModule Parameters:\n"); - len += sprintf(page+len, "max_cmd_per_lun = %d\n", - max_cmd_per_lun); - len += sprintf(page+len, "max_sectors_per_io = %d\n", - max_sectors_per_io); - - *eof = 1; - - return len; + seq_puts(m, "\nModule Parameters:\n"); + seq_printf(m, "max_cmd_per_lun = %d\n", max_cmd_per_lun); + seq_printf(m, "max_sectors_per_io = %d\n", max_sectors_per_io); + return 0; } - - /** - * proc_read_stat() - * @page - buffer to write the data in - * @start - where the actual data has been written in page - * @offset - same meaning as the read system call - * @count - same meaning as the read system call - * @eof - set if no more data needs to be returned - * @data - pointer to our soft state + * proc_show_stat() + * @m - Synthetic file construction data + * @v - File iterator * - * Diaplay statistical information about the I/O activity. + * Display statistical information about the I/O activity. */ static int -proc_read_stat(char *page, char **start, off_t offset, int count, int *eof, - void *data) +proc_show_stat(struct seq_file *m, void *v) { - adapter_t *adapter; - int len; - int i; - - i = 0; /* avoid compilation warnings */ - len = 0; - adapter = (adapter_t *)data; - - len = sprintf(page, "Statistical Information for this controller\n"); - len += sprintf(page+len, "pend_cmds = %d\n", - atomic_read(&adapter->pend_cmds)); + adapter_t *adapter = m->private; #if MEGA_HAVE_STATS - for(i = 0; i < adapter->numldrv; i++) { - len += sprintf(page+len, "Logical Drive %d:\n", i); - - len += sprintf(page+len, - "\tReads Issued = %lu, Writes Issued = %lu\n", - adapter->nreads[i], adapter->nwrites[i]); - - len += sprintf(page+len, - "\tSectors Read = %lu, Sectors Written = %lu\n", - adapter->nreadblocks[i], adapter->nwriteblocks[i]); - - len += sprintf(page+len, - "\tRead errors = %lu, Write errors = %lu\n\n", - adapter->rd_errors[i], adapter->wr_errors[i]); - } -#else - len += sprintf(page+len, - "IO and error counters not compiled in driver.\n"); + int i; #endif - *eof = 1; - - return len; + seq_puts(m, "Statistical Information for this controller\n"); + seq_printf(m, "pend_cmds = %d\n", atomic_read(&adapter->pend_cmds)); +#if MEGA_HAVE_STATS + for(i = 0; i < adapter->numldrv; i++) { + seq_printf(m, "Logical Drive %d:\n", i); + seq_printf(m, "\tReads Issued = %lu, Writes Issued = %lu\n", + adapter->nreads[i], adapter->nwrites[i]); + seq_printf(m, "\tSectors Read = %lu, Sectors Written = %lu\n", + adapter->nreadblocks[i], adapter->nwriteblocks[i]); + seq_printf(m, "\tRead errors = %lu, Write errors = %lu\n\n", + adapter->rd_errors[i], adapter->wr_errors[i]); + } +#else + seq_puts(m, "IO and error counters not compiled in driver.\n"); +#endif + return 0; } /** - * proc_read_mbox() - * @page - buffer to write the data in - * @start - where the actual data has been written in page - * @offset - same meaning as the read system call - * @count - same meaning as the read system call - * @eof - set if no more data needs to be returned - * @data - pointer to our soft state + * proc_show_mbox() + * @m - Synthetic file construction data + * @v - File iterator * * Display mailbox information for the last command issued. This information * is good for debugging. */ static int -proc_read_mbox(char *page, char **start, off_t offset, int count, int *eof, - void *data) +proc_show_mbox(struct seq_file *m, void *v) { - - adapter_t *adapter = (adapter_t *)data; + adapter_t *adapter = m->private; volatile mbox_t *mbox = adapter->mbox; - int len = 0; - len = sprintf(page, "Contents of Mail Box Structure\n"); - len += sprintf(page+len, " Fw Command = 0x%02x\n", - mbox->m_out.cmd); - len += sprintf(page+len, " Cmd Sequence = 0x%02x\n", - mbox->m_out.cmdid); - len += sprintf(page+len, " No of Sectors= %04d\n", - mbox->m_out.numsectors); - len += sprintf(page+len, " LBA = 0x%02x\n", - mbox->m_out.lba); - len += sprintf(page+len, " DTA = 0x%08x\n", - mbox->m_out.xferaddr); - len += sprintf(page+len, " Logical Drive= 0x%02x\n", - mbox->m_out.logdrv); - len += sprintf(page+len, " No of SG Elmt= 0x%02x\n", - mbox->m_out.numsgelements); - len += sprintf(page+len, " Busy = %01x\n", - mbox->m_in.busy); - len += sprintf(page+len, " Status = 0x%02x\n", - mbox->m_in.status); - - *eof = 1; - - return len; + seq_puts(m, "Contents of Mail Box Structure\n"); + seq_printf(m, " Fw Command = 0x%02x\n", mbox->m_out.cmd); + seq_printf(m, " Cmd Sequence = 0x%02x\n", mbox->m_out.cmdid); + seq_printf(m, " No of Sectors= %04d\n", mbox->m_out.numsectors); + seq_printf(m, " LBA = 0x%02x\n", mbox->m_out.lba); + seq_printf(m, " DTA = 0x%08x\n", mbox->m_out.xferaddr); + seq_printf(m, " Logical Drive= 0x%02x\n", mbox->m_out.logdrv); + seq_printf(m, " No of SG Elmt= 0x%02x\n", mbox->m_out.numsgelements); + seq_printf(m, " Busy = %01x\n", mbox->m_in.busy); + seq_printf(m, " Status = 0x%02x\n", mbox->m_in.status); + return 0; } /** - * proc_rebuild_rate() - * @page - buffer to write the data in - * @start - where the actual data has been written in page - * @offset - same meaning as the read system call - * @count - same meaning as the read system call - * @eof - set if no more data needs to be returned - * @data - pointer to our soft state + * proc_show_rebuild_rate() + * @m - Synthetic file construction data + * @v - File iterator * * Display current rebuild rate */ static int -proc_rebuild_rate(char *page, char **start, off_t offset, int count, int *eof, - void *data) +proc_show_rebuild_rate(struct seq_file *m, void *v) { - adapter_t *adapter = (adapter_t *)data; + adapter_t *adapter = m->private; dma_addr_t dma_handle; caddr_t inquiry; struct pci_dev *pdev; - int len = 0; - if( make_local_pdev(adapter, &pdev) != 0 ) { - *eof = 1; - return len; - } + if( make_local_pdev(adapter, &pdev) != 0 ) + return 0; - if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL ) { - free_local_pdev(pdev); - *eof = 1; - return len; - } + if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL ) + goto free_pdev; if( mega_adapinq(adapter, dma_handle) != 0 ) { - - len = sprintf(page, "Adapter inquiry failed.\n"); - + seq_puts(m, "Adapter inquiry failed.\n"); printk(KERN_WARNING "megaraid: inquiry failed.\n"); - - mega_free_inquiry(inquiry, dma_handle, pdev); - - free_local_pdev(pdev); - - *eof = 1; - - return len; + goto free_inquiry; } - if( adapter->flag & BOARD_40LD ) { - len = sprintf(page, "Rebuild Rate: [%d%%]\n", - ((mega_inquiry3 *)inquiry)->rebuild_rate); - } - else { - len = sprintf(page, "Rebuild Rate: [%d%%]\n", + if( adapter->flag & BOARD_40LD ) + seq_printf(m, "Rebuild Rate: [%d%%]\n", + ((mega_inquiry3 *)inquiry)->rebuild_rate); + else + seq_printf(m, "Rebuild Rate: [%d%%]\n", ((mraid_ext_inquiry *) - inquiry)->raid_inq.adapter_info.rebuild_rate); - } - + inquiry)->raid_inq.adapter_info.rebuild_rate); +free_inquiry: mega_free_inquiry(inquiry, dma_handle, pdev); - +free_pdev: free_local_pdev(pdev); - - *eof = 1; - - return len; + return 0; } /** - * proc_battery() - * @page - buffer to write the data in - * @start - where the actual data has been written in page - * @offset - same meaning as the read system call - * @count - same meaning as the read system call - * @eof - set if no more data needs to be returned - * @data - pointer to our soft state + * proc_show_battery() + * @m - Synthetic file construction data + * @v - File iterator * * Display information about the battery module on the controller. */ static int -proc_battery(char *page, char **start, off_t offset, int count, int *eof, - void *data) +proc_show_battery(struct seq_file *m, void *v) { - adapter_t *adapter = (adapter_t *)data; + adapter_t *adapter = m->private; dma_addr_t dma_handle; caddr_t inquiry; struct pci_dev *pdev; - u8 battery_status = 0; - char str[256]; - int len = 0; + u8 battery_status; - if( make_local_pdev(adapter, &pdev) != 0 ) { - *eof = 1; - return len; - } + if( make_local_pdev(adapter, &pdev) != 0 ) + return 0; - if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL ) { - free_local_pdev(pdev); - *eof = 1; - return len; - } + if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL ) + goto free_pdev; if( mega_adapinq(adapter, dma_handle) != 0 ) { - - len = sprintf(page, "Adapter inquiry failed.\n"); - + seq_printf(m, "Adapter inquiry failed.\n"); printk(KERN_WARNING "megaraid: inquiry failed.\n"); - - mega_free_inquiry(inquiry, dma_handle, pdev); - - free_local_pdev(pdev); - - *eof = 1; - - return len; + goto free_inquiry; } if( adapter->flag & BOARD_40LD ) { @@ -2461,146 +2278,80 @@ proc_battery(char *page, char **start, off_t offset, int count, int *eof, /* * Decode the battery status */ - sprintf(str, "Battery Status:[%d]", battery_status); + seq_printf(m, "Battery Status:[%d]", battery_status); if(battery_status == MEGA_BATT_CHARGE_DONE) - strcat(str, " Charge Done"); + seq_puts(m, " Charge Done"); if(battery_status & MEGA_BATT_MODULE_MISSING) - strcat(str, " Module Missing"); + seq_puts(m, " Module Missing"); if(battery_status & MEGA_BATT_LOW_VOLTAGE) - strcat(str, " Low Voltage"); + seq_puts(m, " Low Voltage"); if(battery_status & MEGA_BATT_TEMP_HIGH) - strcat(str, " Temperature High"); + seq_puts(m, " Temperature High"); if(battery_status & MEGA_BATT_PACK_MISSING) - strcat(str, " Pack Missing"); + seq_puts(m, " Pack Missing"); if(battery_status & MEGA_BATT_CHARGE_INPROG) - strcat(str, " Charge In-progress"); + seq_puts(m, " Charge In-progress"); if(battery_status & MEGA_BATT_CHARGE_FAIL) - strcat(str, " Charge Fail"); + seq_puts(m, " Charge Fail"); if(battery_status & MEGA_BATT_CYCLES_EXCEEDED) - strcat(str, " Cycles Exceeded"); - - len = sprintf(page, "%s\n", str); + seq_puts(m, " Cycles Exceeded"); + seq_putc(m, '\n'); +free_inquiry: mega_free_inquiry(inquiry, dma_handle, pdev); - +free_pdev: free_local_pdev(pdev); - - *eof = 1; - - return len; + return 0; } -/** - * proc_pdrv_ch0() - * @page - buffer to write the data in - * @start - where the actual data has been written in page - * @offset - same meaning as the read system call - * @count - same meaning as the read system call - * @eof - set if no more data needs to be returned - * @data - pointer to our soft state - * - * Display information about the physical drives on physical channel 0. +/* + * Display scsi inquiry */ -static int -proc_pdrv_ch0(char *page, char **start, off_t offset, int count, int *eof, - void *data) +static void +mega_print_inquiry(struct seq_file *m, char *scsi_inq) { - adapter_t *adapter = (adapter_t *)data; + int i; - *eof = 1; + seq_puts(m, " Vendor: "); + seq_write(m, scsi_inq + 8, 8); + seq_puts(m, " Model: "); + seq_write(m, scsi_inq + 16, 16); + seq_puts(m, " Rev: "); + seq_write(m, scsi_inq + 32, 4); + seq_putc(m, '\n'); - return (proc_pdrv(adapter, page, 0)); + i = scsi_inq[0] & 0x1f; + seq_printf(m, " Type: %s ", scsi_device_type(i)); + + seq_printf(m, " ANSI SCSI revision: %02x", + scsi_inq[2] & 0x07); + + if( (scsi_inq[2] & 0x07) == 1 && (scsi_inq[3] & 0x0f) == 1 ) + seq_puts(m, " CCS\n"); + else + seq_putc(m, '\n'); } - /** - * proc_pdrv_ch1() - * @page - buffer to write the data in - * @start - where the actual data has been written in page - * @offset - same meaning as the read system call - * @count - same meaning as the read system call - * @eof - set if no more data needs to be returned - * @data - pointer to our soft state - * - * Display information about the physical drives on physical channel 1. - */ -static int -proc_pdrv_ch1(char *page, char **start, off_t offset, int count, int *eof, - void *data) -{ - adapter_t *adapter = (adapter_t *)data; - - *eof = 1; - - return (proc_pdrv(adapter, page, 1)); -} - - -/** - * proc_pdrv_ch2() - * @page - buffer to write the data in - * @start - where the actual data has been written in page - * @offset - same meaning as the read system call - * @count - same meaning as the read system call - * @eof - set if no more data needs to be returned - * @data - pointer to our soft state - * - * Display information about the physical drives on physical channel 2. - */ -static int -proc_pdrv_ch2(char *page, char **start, off_t offset, int count, int *eof, - void *data) -{ - adapter_t *adapter = (adapter_t *)data; - - *eof = 1; - - return (proc_pdrv(adapter, page, 2)); -} - - -/** - * proc_pdrv_ch3() - * @page - buffer to write the data in - * @start - where the actual data has been written in page - * @offset - same meaning as the read system call - * @count - same meaning as the read system call - * @eof - set if no more data needs to be returned - * @data - pointer to our soft state - * - * Display information about the physical drives on physical channel 3. - */ -static int -proc_pdrv_ch3(char *page, char **start, off_t offset, int count, int *eof, - void *data) -{ - adapter_t *adapter = (adapter_t *)data; - - *eof = 1; - - return (proc_pdrv(adapter, page, 3)); -} - - -/** - * proc_pdrv() + * proc_show_pdrv() + * @m - Synthetic file construction data * @page - buffer to write the data in * @adapter - pointer to our soft state * * Display information about the physical drives. */ static int -proc_pdrv(adapter_t *adapter, char *page, int channel) +proc_show_pdrv(struct seq_file *m, adapter_t *adapter, int channel) { dma_addr_t dma_handle; char *scsi_inq; @@ -2611,32 +2362,24 @@ proc_pdrv(adapter_t *adapter, char *page, int channel) u8 state; int tgt; int max_channels; - int len = 0; - char str[80]; int i; - if( make_local_pdev(adapter, &pdev) != 0 ) { - return len; - } + if( make_local_pdev(adapter, &pdev) != 0 ) + return 0; - if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL ) { + if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL ) goto free_pdev; - } if( mega_adapinq(adapter, dma_handle) != 0 ) { - len = sprintf(page, "Adapter inquiry failed.\n"); - + seq_puts(m, "Adapter inquiry failed.\n"); printk(KERN_WARNING "megaraid: inquiry failed.\n"); - goto free_inquiry; } scsi_inq = pci_alloc_consistent(pdev, 256, &scsi_inq_dma_handle); - if( scsi_inq == NULL ) { - len = sprintf(page, "memory not available for scsi inq.\n"); - + seq_puts(m, "memory not available for scsi inq.\n"); goto free_inquiry; } @@ -2659,39 +2402,31 @@ proc_pdrv(adapter_t *adapter, char *page, int channel) i = channel*16 + tgt; state = *(pdrv_state + i); - switch( state & 0x0F ) { - case PDRV_ONLINE: - sprintf(str, - "Channel:%2d Id:%2d State: Online", - channel, tgt); + seq_printf(m, "Channel:%2d Id:%2d State: Online", + channel, tgt); break; case PDRV_FAILED: - sprintf(str, - "Channel:%2d Id:%2d State: Failed", - channel, tgt); + seq_printf(m, "Channel:%2d Id:%2d State: Failed", + channel, tgt); break; case PDRV_RBLD: - sprintf(str, - "Channel:%2d Id:%2d State: Rebuild", - channel, tgt); + seq_printf(m, "Channel:%2d Id:%2d State: Rebuild", + channel, tgt); break; case PDRV_HOTSPARE: - sprintf(str, - "Channel:%2d Id:%2d State: Hot spare", - channel, tgt); + seq_printf(m, "Channel:%2d Id:%2d State: Hot spare", + channel, tgt); break; default: - sprintf(str, - "Channel:%2d Id:%2d State: Un-configured", - channel, tgt); + seq_printf(m, "Channel:%2d Id:%2d State: Un-configured", + channel, tgt); break; - } /* @@ -2710,11 +2445,8 @@ proc_pdrv(adapter_t *adapter, char *page, int channel) * Check for overflow. We print less than 240 * characters for inquiry */ - if( (len + 240) >= PAGE_SIZE ) break; - - len += sprintf(page+len, "%s.\n", str); - - len += mega_print_inquiry(page+len, scsi_inq); + seq_puts(m, ".\n"); + mega_print_inquiry(m, scsi_inq); } free_pci: @@ -2723,150 +2455,68 @@ proc_pdrv(adapter_t *adapter, char *page, int channel) mega_free_inquiry(inquiry, dma_handle, pdev); free_pdev: free_local_pdev(pdev); - - return len; + return 0; } - -/* - * Display scsi inquiry - */ -static int -mega_print_inquiry(char *page, char *scsi_inq) -{ - int len = 0; - int i; - - len = sprintf(page, " Vendor: "); - for( i = 8; i < 16; i++ ) { - len += sprintf(page+len, "%c", scsi_inq[i]); - } - - len += sprintf(page+len, " Model: "); - - for( i = 16; i < 32; i++ ) { - len += sprintf(page+len, "%c", scsi_inq[i]); - } - - len += sprintf(page+len, " Rev: "); - - for( i = 32; i < 36; i++ ) { - len += sprintf(page+len, "%c", scsi_inq[i]); - } - - len += sprintf(page+len, "\n"); - - i = scsi_inq[0] & 0x1f; - - len += sprintf(page+len, " Type: %s ", scsi_device_type(i)); - - len += sprintf(page+len, - " ANSI SCSI revision: %02x", scsi_inq[2] & 0x07); - - if( (scsi_inq[2] & 0x07) == 1 && (scsi_inq[3] & 0x0f) == 1 ) - len += sprintf(page+len, " CCS\n"); - else - len += sprintf(page+len, "\n"); - - return len; -} - - /** - * proc_rdrv_10() - * @page - buffer to write the data in - * @start - where the actual data has been written in page - * @offset - same meaning as the read system call - * @count - same meaning as the read system call - * @eof - set if no more data needs to be returned - * @data - pointer to our soft state + * proc_show_pdrv_ch0() + * @m - Synthetic file construction data + * @v - File iterator * - * Display real time information about the logical drives 0 through 9. + * Display information about the physical drives on physical channel 0. */ static int -proc_rdrv_10(char *page, char **start, off_t offset, int count, int *eof, - void *data) +proc_show_pdrv_ch0(struct seq_file *m, void *v) { - adapter_t *adapter = (adapter_t *)data; - - *eof = 1; - - return (proc_rdrv(adapter, page, 0, 9)); + return proc_show_pdrv(m, m->private, 0); } /** - * proc_rdrv_20() - * @page - buffer to write the data in - * @start - where the actual data has been written in page - * @offset - same meaning as the read system call - * @count - same meaning as the read system call - * @eof - set if no more data needs to be returned - * @data - pointer to our soft state + * proc_show_pdrv_ch1() + * @m - Synthetic file construction data + * @v - File iterator * - * Display real time information about the logical drives 0 through 9. + * Display information about the physical drives on physical channel 1. */ static int -proc_rdrv_20(char *page, char **start, off_t offset, int count, int *eof, - void *data) +proc_show_pdrv_ch1(struct seq_file *m, void *v) { - adapter_t *adapter = (adapter_t *)data; - - *eof = 1; - - return (proc_rdrv(adapter, page, 10, 19)); + return proc_show_pdrv(m, m->private, 1); } /** - * proc_rdrv_30() - * @page - buffer to write the data in - * @start - where the actual data has been written in page - * @offset - same meaning as the read system call - * @count - same meaning as the read system call - * @eof - set if no more data needs to be returned - * @data - pointer to our soft state + * proc_show_pdrv_ch2() + * @m - Synthetic file construction data + * @v - File iterator * - * Display real time information about the logical drives 0 through 9. + * Display information about the physical drives on physical channel 2. */ static int -proc_rdrv_30(char *page, char **start, off_t offset, int count, int *eof, - void *data) +proc_show_pdrv_ch2(struct seq_file *m, void *v) { - adapter_t *adapter = (adapter_t *)data; - - *eof = 1; - - return (proc_rdrv(adapter, page, 20, 29)); + return proc_show_pdrv(m, m->private, 2); } /** - * proc_rdrv_40() - * @page - buffer to write the data in - * @start - where the actual data has been written in page - * @offset - same meaning as the read system call - * @count - same meaning as the read system call - * @eof - set if no more data needs to be returned - * @data - pointer to our soft state + * proc_show_pdrv_ch3() + * @m - Synthetic file construction data + * @v - File iterator * - * Display real time information about the logical drives 0 through 9. + * Display information about the physical drives on physical channel 3. */ static int -proc_rdrv_40(char *page, char **start, off_t offset, int count, int *eof, - void *data) +proc_show_pdrv_ch3(struct seq_file *m, void *v) { - adapter_t *adapter = (adapter_t *)data; - - *eof = 1; - - return (proc_rdrv(adapter, page, 30, 39)); + return proc_show_pdrv(m, m->private, 3); } /** - * proc_rdrv() - * @page - buffer to write the data in + * proc_show_rdrv() + * @m - Synthetic file construction data * @adapter - pointer to our soft state * @start - starting logical drive to display * @end - ending logical drive to display @@ -2875,7 +2525,7 @@ proc_rdrv_40(char *page, char **start, off_t offset, int count, int *eof, * /proc/scsi/scsi interface */ static int -proc_rdrv(adapter_t *adapter, char *page, int start, int end ) +proc_show_rdrv(struct seq_file *m, adapter_t *adapter, int start, int end ) { dma_addr_t dma_handle; logdrv_param *lparam; @@ -2887,29 +2537,18 @@ proc_rdrv(adapter_t *adapter, char *page, int start, int end ) u8 *rdrv_state; int num_ldrv; u32 array_sz; - int len = 0; int i; - if( make_local_pdev(adapter, &pdev) != 0 ) { - return len; - } + if( make_local_pdev(adapter, &pdev) != 0 ) + return 0; - if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL ) { - free_local_pdev(pdev); - return len; - } + if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL ) + goto free_pdev; if( mega_adapinq(adapter, dma_handle) != 0 ) { - - len = sprintf(page, "Adapter inquiry failed.\n"); - + seq_puts(m, "Adapter inquiry failed.\n"); printk(KERN_WARNING "megaraid: inquiry failed.\n"); - - mega_free_inquiry(inquiry, dma_handle, pdev); - - free_local_pdev(pdev); - - return len; + goto free_inquiry; } memset(&mc, 0, sizeof(megacmd_t)); @@ -2935,13 +2574,8 @@ proc_rdrv(adapter_t *adapter, char *page, int start, int end ) &disk_array_dma_handle); if( disk_array == NULL ) { - len = sprintf(page, "memory not available.\n"); - - mega_free_inquiry(inquiry, dma_handle, pdev); - - free_local_pdev(pdev); - - return len; + seq_puts(m, "memory not available.\n"); + goto free_inquiry; } mc.xferaddr = (u32)disk_array_dma_handle; @@ -2951,17 +2585,8 @@ proc_rdrv(adapter_t *adapter, char *page, int start, int end ) mc.opcode = OP_DCMD_READ_CONFIG; if( mega_internal_command(adapter, &mc, NULL) ) { - - len = sprintf(page, "40LD read config failed.\n"); - - mega_free_inquiry(inquiry, dma_handle, pdev); - - pci_free_consistent(pdev, array_sz, disk_array, - disk_array_dma_handle); - - free_local_pdev(pdev); - - return len; + seq_puts(m, "40LD read config failed.\n"); + goto free_pci; } } @@ -2969,24 +2594,10 @@ proc_rdrv(adapter_t *adapter, char *page, int start, int end ) mc.cmd = NEW_READ_CONFIG_8LD; if( mega_internal_command(adapter, &mc, NULL) ) { - mc.cmd = READ_CONFIG_8LD; - - if( mega_internal_command(adapter, &mc, - NULL) ){ - - len = sprintf(page, - "8LD read config failed.\n"); - - mega_free_inquiry(inquiry, dma_handle, pdev); - - pci_free_consistent(pdev, array_sz, - disk_array, - disk_array_dma_handle); - - free_local_pdev(pdev); - - return len; + if( mega_internal_command(adapter, &mc, NULL) ) { + seq_puts(m, "8LD read config failed.\n"); + goto free_pci; } } } @@ -3006,29 +2617,23 @@ proc_rdrv(adapter_t *adapter, char *page, int start, int end ) * Check for overflow. We print less than 240 characters for * information about each logical drive. */ - if( (len + 240) >= PAGE_SIZE ) break; - - len += sprintf(page+len, "Logical drive:%2d:, ", i); + seq_printf(m, "Logical drive:%2d:, ", i); switch( rdrv_state[i] & 0x0F ) { case RDRV_OFFLINE: - len += sprintf(page+len, "state: offline"); + seq_puts(m, "state: offline"); break; - case RDRV_DEGRADED: - len += sprintf(page+len, "state: degraded"); + seq_puts(m, "state: degraded"); break; - case RDRV_OPTIMAL: - len += sprintf(page+len, "state: optimal"); + seq_puts(m, "state: optimal"); break; - case RDRV_DELETED: - len += sprintf(page+len, "state: deleted"); + seq_puts(m, "state: deleted"); break; - default: - len += sprintf(page+len, "state: unknown"); + seq_puts(m, "state: unknown"); break; } @@ -3036,84 +2641,203 @@ proc_rdrv(adapter_t *adapter, char *page, int start, int end ) * Check if check consistency or initialization is going on * for this logical drive. */ - if( (rdrv_state[i] & 0xF0) == 0x20 ) { - len += sprintf(page+len, - ", check-consistency in progress"); - } - else if( (rdrv_state[i] & 0xF0) == 0x10 ) { - len += sprintf(page+len, - ", initialization in progress"); - } + if( (rdrv_state[i] & 0xF0) == 0x20 ) + seq_puts(m, ", check-consistency in progress"); + else if( (rdrv_state[i] & 0xF0) == 0x10 ) + seq_puts(m, ", initialization in progress"); - len += sprintf(page+len, "\n"); + seq_putc(m, '\n'); - len += sprintf(page+len, "Span depth:%3d, ", - lparam->span_depth); - - len += sprintf(page+len, "RAID level:%3d, ", - lparam->level); - - len += sprintf(page+len, "Stripe size:%3d, ", - lparam->stripe_sz ? lparam->stripe_sz/2: 128); - - len += sprintf(page+len, "Row size:%3d\n", - lparam->row_size); - - - len += sprintf(page+len, "Read Policy: "); + seq_printf(m, "Span depth:%3d, ", lparam->span_depth); + seq_printf(m, "RAID level:%3d, ", lparam->level); + seq_printf(m, "Stripe size:%3d, ", + lparam->stripe_sz ? lparam->stripe_sz/2: 128); + seq_printf(m, "Row size:%3d\n", lparam->row_size); + seq_puts(m, "Read Policy: "); switch(lparam->read_ahead) { - case NO_READ_AHEAD: - len += sprintf(page+len, "No read ahead, "); + seq_puts(m, "No read ahead, "); break; - case READ_AHEAD: - len += sprintf(page+len, "Read ahead, "); + seq_puts(m, "Read ahead, "); break; - case ADAP_READ_AHEAD: - len += sprintf(page+len, "Adaptive, "); + seq_puts(m, "Adaptive, "); break; } - len += sprintf(page+len, "Write Policy: "); - + seq_puts(m, "Write Policy: "); switch(lparam->write_mode) { - case WRMODE_WRITE_THRU: - len += sprintf(page+len, "Write thru, "); + seq_puts(m, "Write thru, "); break; - case WRMODE_WRITE_BACK: - len += sprintf(page+len, "Write back, "); + seq_puts(m, "Write back, "); break; } - len += sprintf(page+len, "Cache Policy: "); - + seq_puts(m, "Cache Policy: "); switch(lparam->direct_io) { - case CACHED_IO: - len += sprintf(page+len, "Cached IO\n\n"); + seq_puts(m, "Cached IO\n\n"); break; - case DIRECT_IO: - len += sprintf(page+len, "Direct IO\n\n"); + seq_puts(m, "Direct IO\n\n"); break; } } - mega_free_inquiry(inquiry, dma_handle, pdev); - +free_pci: pci_free_consistent(pdev, array_sz, disk_array, disk_array_dma_handle); - +free_inquiry: + mega_free_inquiry(inquiry, dma_handle, pdev); +free_pdev: free_local_pdev(pdev); - - return len; + return 0; } + +/** + * proc_show_rdrv_10() + * @m - Synthetic file construction data + * @v - File iterator + * + * Display real time information about the logical drives 0 through 9. + */ +static int +proc_show_rdrv_10(struct seq_file *m, void *v) +{ + return proc_show_rdrv(m, m->private, 0, 9); +} + + +/** + * proc_show_rdrv_20() + * @m - Synthetic file construction data + * @v - File iterator + * + * Display real time information about the logical drives 0 through 9. + */ +static int +proc_show_rdrv_20(struct seq_file *m, void *v) +{ + return proc_show_rdrv(m, m->private, 10, 19); +} + + +/** + * proc_show_rdrv_30() + * @m - Synthetic file construction data + * @v - File iterator + * + * Display real time information about the logical drives 0 through 9. + */ +static int +proc_show_rdrv_30(struct seq_file *m, void *v) +{ + return proc_show_rdrv(m, m->private, 20, 29); +} + + +/** + * proc_show_rdrv_40() + * @m - Synthetic file construction data + * @v - File iterator + * + * Display real time information about the logical drives 0 through 9. + */ +static int +proc_show_rdrv_40(struct seq_file *m, void *v) +{ + return proc_show_rdrv(m, m->private, 30, 39); +} + + +/* + * seq_file wrappers for procfile show routines. + */ +static int mega_proc_open(struct inode *inode, struct file *file) +{ + adapter_t *adapter = PDE(inode)->parent->data; + int (*show)(struct seq_file *, void *) = PDE_DATA(inode); + + return single_open(file, show, adapter); +} + +static const struct file_operations mega_proc_fops = { + .open = mega_proc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + +/* + * Table of proc files we need to create. + */ +struct mega_proc_file { + const char *name; + unsigned short ptr_offset; + int (*show) (struct seq_file *m, void *v); +}; + +static const struct mega_proc_file mega_proc_files[] = { + { "config", offsetof(adapter_t, proc_read), proc_show_config }, + { "stat", offsetof(adapter_t, proc_stat), proc_show_stat }, + { "mailbox", offsetof(adapter_t, proc_mbox), proc_show_mbox }, +#if MEGA_HAVE_ENH_PROC + { "rebuild-rate", offsetof(adapter_t, proc_rr), proc_show_rebuild_rate }, + { "battery-status", offsetof(adapter_t, proc_battery), proc_show_battery }, + { "diskdrives-ch0", offsetof(adapter_t, proc_pdrvstat[0]), proc_show_pdrv_ch0 }, + { "diskdrives-ch1", offsetof(adapter_t, proc_pdrvstat[1]), proc_show_pdrv_ch1 }, + { "diskdrives-ch2", offsetof(adapter_t, proc_pdrvstat[2]), proc_show_pdrv_ch2 }, + { "diskdrives-ch3", offsetof(adapter_t, proc_pdrvstat[3]), proc_show_pdrv_ch3 }, + { "raiddrives-0-9", offsetof(adapter_t, proc_rdrvstat[0]), proc_show_rdrv_10 }, + { "raiddrives-10-19", offsetof(adapter_t, proc_rdrvstat[1]), proc_show_rdrv_20 }, + { "raiddrives-20-29", offsetof(adapter_t, proc_rdrvstat[2]), proc_show_rdrv_30 }, + { "raiddrives-30-39", offsetof(adapter_t, proc_rdrvstat[3]), proc_show_rdrv_40 }, +#endif + { NULL } +}; + +/** + * mega_create_proc_entry() + * @index - index in soft state array + * @parent - parent node for this /proc entry + * + * Creates /proc entries for our controllers. + */ +static void +mega_create_proc_entry(int index, struct proc_dir_entry *parent) +{ + const struct mega_proc_file *f; + adapter_t *adapter = hba_soft_state[index]; + struct proc_dir_entry *dir, *de, **ppde; + u8 string[16]; + + sprintf(string, "hba%d", adapter->host->host_no); + + dir = adapter->controller_proc_dir_entry = proc_mkdir(string, parent); + if(!dir) { + printk(KERN_WARNING "\nmegaraid: proc_mkdir failed\n"); + return; + } + dir->data = adapter; + + for (f = mega_proc_files; f->name; f++) { + de = proc_create_data(f->name, S_IRUSR, dir, &mega_proc_fops, + f->show); + if (!de) { + printk(KERN_WARNING "\nmegaraid: proc_create failed\n"); + return; + } + + ppde = (void *)adapter + f->ptr_offset; + *ppde = de; + } +} + #else static inline void mega_create_proc_entry(int index, struct proc_dir_entry *parent) { diff --git a/drivers/scsi/megaraid.h b/drivers/scsi/megaraid.h index 4fb2adf6b80d..4d0ce4e78dfd 100644 --- a/drivers/scsi/megaraid.h +++ b/drivers/scsi/megaraid.h @@ -987,24 +987,7 @@ static int mega_init_scb (adapter_t *); static int mega_is_bios_enabled (adapter_t *); #ifdef CONFIG_PROC_FS -static int mega_print_inquiry(char *, char *); static void mega_create_proc_entry(int, struct proc_dir_entry *); -static int proc_read_config(char *, char **, off_t, int, int *, void *); -static int proc_read_stat(char *, char **, off_t, int, int *, void *); -static int proc_read_mbox(char *, char **, off_t, int, int *, void *); -static int proc_rebuild_rate(char *, char **, off_t, int, int *, void *); -static int proc_battery(char *, char **, off_t, int, int *, void *); -static int proc_pdrv_ch0(char *, char **, off_t, int, int *, void *); -static int proc_pdrv_ch1(char *, char **, off_t, int, int *, void *); -static int proc_pdrv_ch2(char *, char **, off_t, int, int *, void *); -static int proc_pdrv_ch3(char *, char **, off_t, int, int *, void *); -static int proc_pdrv(adapter_t *, char *, int); -static int proc_rdrv_10(char *, char **, off_t, int, int *, void *); -static int proc_rdrv_20(char *, char **, off_t, int, int *, void *); -static int proc_rdrv_30(char *, char **, off_t, int, int *, void *); -static int proc_rdrv_40(char *, char **, off_t, int, int *, void *); -static int proc_rdrv(adapter_t *, char *, int, int); - static int mega_adapinq(adapter_t *, dma_addr_t); static int mega_internal_dev_inquiry(adapter_t *, u8, u8, dma_addr_t); #endif From 64f0962c33d52524deb32d7c34ab8b2c271ee1a3 Mon Sep 17 00:00:00 2001 From: David Howells Date: Thu, 11 Apr 2013 00:01:27 +0100 Subject: [PATCH 169/204] sh: Don't use create_proc_read_entry() Don't use create_proc_read_entry() as that is deprecated, but rather use proc_create_data() and seq_file instead. Signed-off-by: David Howells cc: Paul Mundt cc: linux-sh@vger.kernel.org Signed-off-by: Al Viro --- arch/sh/drivers/dma/dma-api.c | 28 +++++++++++++++++++--------- 1 file changed, 19 insertions(+), 9 deletions(-) diff --git a/arch/sh/drivers/dma/dma-api.c b/arch/sh/drivers/dma/dma-api.c index f46848f088e4..851e5106e580 100644 --- a/arch/sh/drivers/dma/dma-api.c +++ b/arch/sh/drivers/dma/dma-api.c @@ -13,6 +13,7 @@ #include #include #include +#include #include #include #include @@ -308,11 +309,9 @@ int dma_extend(unsigned int chan, unsigned long op, void *param) } EXPORT_SYMBOL(dma_extend); -static int dma_read_proc(char *buf, char **start, off_t off, - int len, int *eof, void *data) +static int dma_proc_show(struct seq_file *m, void *v) { - struct dma_info *info; - char *p = buf; + struct dma_info *info = v; if (list_empty(®istered_dmac_list)) return 0; @@ -332,14 +331,26 @@ static int dma_read_proc(char *buf, char **start, off_t off, if (!(channel->flags & DMA_CONFIGURED)) continue; - p += sprintf(p, "%2d: %14s %s\n", i, - info->name, channel->dev_id); + seq_printf(m, "%2d: %14s %s\n", i, + info->name, channel->dev_id); } } - return p - buf; + return 0; } +static int dma_proc_open(struct inode *inode, struct file *file) +{ + return single_open(file, dma_proc_show, NULL); +} + +static const struct file_operations dma_proc_fops = { + .open = dma_proc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + int register_dmac(struct dma_info *info) { unsigned int total_channels, i; @@ -412,8 +423,7 @@ EXPORT_SYMBOL(unregister_dmac); static int __init dma_api_init(void) { printk(KERN_NOTICE "DMA: Registering DMA API.\n"); - return create_proc_read_entry("dma", 0, 0, dma_read_proc, 0) - ? 0 : -ENOMEM; + return proc_create("dma", 0, NULL, &dma_proc_fops) ? 0 : -ENOMEM; } subsys_initcall(dma_api_init); From 28ff11882a2ec50916b2b52016d80ec52461e5f9 Mon Sep 17 00:00:00 2001 From: David Howells Date: Thu, 11 Apr 2013 00:11:51 +0100 Subject: [PATCH 170/204] parisc: Don't use create_proc_read_entry() Don't use create_proc_read_entry() as that is deprecated, but rather use proc_create_data() and seq_file instead. Signed-off-by: David Howells cc: "James E.J. Bottomley" cc: Helge Deller cc: linux-parisc@vger.kernel.org Signed-off-by: Al Viro --- arch/parisc/kernel/pdc_chassis.c | 45 ++++++++++++++++---------------- 1 file changed, 23 insertions(+), 22 deletions(-) diff --git a/arch/parisc/kernel/pdc_chassis.c b/arch/parisc/kernel/pdc_chassis.c index d47ba1aa8253..8fa314fbfb18 100644 --- a/arch/parisc/kernel/pdc_chassis.c +++ b/arch/parisc/kernel/pdc_chassis.c @@ -30,11 +30,13 @@ #endif #include +#include #include #include #include #include #include +#include #include #include @@ -244,38 +246,38 @@ int pdc_chassis_send_status(int message) #ifdef CONFIG_PDC_CHASSIS_WARN #ifdef CONFIG_PROC_FS -static int pdc_chassis_warn_pread(char *page, char **start, off_t off, - int count, int *eof, void *data) +static int pdc_chassis_warn_show(struct seq_file *m, void *v) { - char *out = page; - int len, ret; unsigned long warn; u32 warnreg; - ret = pdc_chassis_warn(&warn); - if (ret != PDC_OK) + if (pdc_chassis_warn(&warn) != PDC_OK) return -EIO; warnreg = (warn & 0xFFFFFFFF); if ((warnreg >> 24) & 0xFF) - out += sprintf(out, "Chassis component failure! (eg fan or PSU): 0x%.2x\n", ((warnreg >> 24) & 0xFF)); + seq_printf(m, "Chassis component failure! (eg fan or PSU): 0x%.2x\n", + (warnreg >> 24) & 0xFF); - out += sprintf(out, "Battery: %s\n", (warnreg & 0x04) ? "Low!" : "OK"); - out += sprintf(out, "Temp low: %s\n", (warnreg & 0x02) ? "Exceeded!" : "OK"); - out += sprintf(out, "Temp mid: %s\n", (warnreg & 0x01) ? "Exceeded!" : "OK"); - - len = out - page - off; - if (len < count) { - *eof = 1; - if (len <= 0) return 0; - } else { - len = count; - } - *start = page + off; - return len; + seq_printf(m, "Battery: %s\n", (warnreg & 0x04) ? "Low!" : "OK"); + seq_printf(m, "Temp low: %s\n", (warnreg & 0x02) ? "Exceeded!" : "OK"); + seq_printf(m, "Temp mid: %s\n", (warnreg & 0x01) ? "Exceeded!" : "OK"); + return 0; } +static int pdc_chassis_warn_open(struct inode *inode, struct file *file) +{ + return single_open(file, pdc_chassis_warn_show, NULL); +} + +static const struct file_operations pdc_chassis_warn_fops = { + .open = pdc_chassis_warn_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + static int __init pdc_chassis_create_procfs(void) { unsigned long test; @@ -290,8 +292,7 @@ static int __init pdc_chassis_create_procfs(void) printk(KERN_INFO "Enabling PDC chassis warnings support v%s\n", PDC_CHASSIS_VER); - create_proc_read_entry("chassis", 0400, NULL, pdc_chassis_warn_pread, - NULL); + proc_create("chassis", 0400, NULL, &pdc_chassis_warn_fops); return 0; } From 24270156ac94a54cfaa7326375ed44d0902f58c5 Mon Sep 17 00:00:00 2001 From: David Howells Date: Thu, 11 Apr 2013 00:21:15 +0100 Subject: [PATCH 171/204] mips: Don't use create_proc_read_entry() Don't use create_proc_read_entry() as that is deprecated, but rather use proc_create_data() and seq_file instead. Signed-off-by: David Howells cc: Ralf Baechle cc: linux-mips@linux-mips.org Signed-off-by: Al Viro --- arch/mips/kernel/smtc-proc.c | 66 ++++++++---------- arch/mips/pci/ops-pmcmsp.c | 99 ++++++++++++--------------- arch/mips/sibyte/sb1250/bus_watcher.c | 89 +++++++++++------------- 3 files changed, 111 insertions(+), 143 deletions(-) diff --git a/arch/mips/kernel/smtc-proc.c b/arch/mips/kernel/smtc-proc.c index aee7c8177b5d..9fb714450e95 100644 --- a/arch/mips/kernel/smtc-proc.c +++ b/arch/mips/kernel/smtc-proc.c @@ -16,6 +16,7 @@ #include #include #include +#include #include @@ -30,51 +31,39 @@ unsigned long selfipis[NR_CPUS]; struct smtc_cpu_proc smtc_cpu_stats[NR_CPUS]; -static struct proc_dir_entry *smtc_stats; - atomic_t smtc_fpu_recoveries; -static int proc_read_smtc(char *page, char **start, off_t off, - int count, int *eof, void *data) +static int smtc_proc_show(struct seq_file *m, void *v) { - int totalen = 0; - int len; int i; extern unsigned long ebase; - len = sprintf(page, "SMTC Status Word: 0x%08x\n", smtc_status); - totalen += len; - page += len; - len = sprintf(page, "Config7: 0x%08x\n", read_c0_config7()); - totalen += len; - page += len; - len = sprintf(page, "EBASE: 0x%08lx\n", ebase); - totalen += len; - page += len; - len = sprintf(page, "Counter Interrupts taken per CPU (TC)\n"); - totalen += len; - page += len; - for (i=0; i < NR_CPUS; i++) { - len = sprintf(page, "%d: %ld\n", i, smtc_cpu_stats[i].timerints); - totalen += len; - page += len; - } - len = sprintf(page, "Self-IPIs by CPU:\n"); - totalen += len; - page += len; - for(i = 0; i < NR_CPUS; i++) { - len = sprintf(page, "%d: %ld\n", i, smtc_cpu_stats[i].selfipis); - totalen += len; - page += len; - } - len = sprintf(page, "%d Recoveries of \"stolen\" FPU\n", - atomic_read(&smtc_fpu_recoveries)); - totalen += len; - page += len; - - return totalen; + seq_printf(m, "SMTC Status Word: 0x%08x\n", smtc_status); + seq_printf(m, "Config7: 0x%08x\n", read_c0_config7()); + seq_printf(m, "EBASE: 0x%08lx\n", ebase); + seq_printf(m, "Counter Interrupts taken per CPU (TC)\n"); + for (i=0; i < NR_CPUS; i++) + seq_printf(m, "%d: %ld\n", i, smtc_cpu_stats[i].timerints); + seq_printf(m, "Self-IPIs by CPU:\n"); + for(i = 0; i < NR_CPUS; i++) + seq_printf(m, "%d: %ld\n", i, smtc_cpu_stats[i].selfipis); + seq_printf(m, "%d Recoveries of \"stolen\" FPU\n", + atomic_read(&smtc_fpu_recoveries)); + return 0; } +static int smtc_proc_open(struct inode *inode, struct file *file) +{ + return single_open(file, smtc_proc_show, NULL); +} + +static const struct file_operations smtc_proc_fops = { + .open = smtc_proc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + void init_smtc_stats(void) { int i; @@ -86,6 +75,5 @@ void init_smtc_stats(void) atomic_set(&smtc_fpu_recoveries, 0); - smtc_stats = create_proc_read_entry("smtc", 0444, NULL, - proc_read_smtc, NULL); + proc_create("smtc", 0444, NULL, &smtc_proc_fops); } diff --git a/arch/mips/pci/ops-pmcmsp.c b/arch/mips/pci/ops-pmcmsp.c index d0b6f8399b07..4eaab6327369 100644 --- a/arch/mips/pci/ops-pmcmsp.c +++ b/arch/mips/pci/ops-pmcmsp.c @@ -53,56 +53,51 @@ static void pci_proc_init(void); /***************************************************************************** * - * FUNCTION: read_msp_pci_counts + * FUNCTION: show_msp_pci_counts * _________________________________________________________________________ * * DESCRIPTION: Prints the count of how many times each PCI * interrupt has asserted. Can be invoked by the * /proc filesystem. * - * INPUTS: page - part of STDOUT calculation - * off - part of STDOUT calculation - * count - part of STDOUT calculation - * data - unused + * INPUTS: m - synthetic file construction data + * v - iterator * - * OUTPUTS: start - new start location - * eof - end of file pointer - * - * RETURNS: len - STDOUT length + * RETURNS: 0 or error * ****************************************************************************/ -static int read_msp_pci_counts(char *page, char **start, off_t off, - int count, int *eof, void *data) +static int show_msp_pci_counts(struct seq_file *m, void *v) { int i; - int len = 0; unsigned int intcount, total = 0; for (i = 0; i < 32; ++i) { intcount = pci_int_count[i]; if (intcount != 0) { - len += sprintf(page + len, "[%d] = %u\n", i, intcount); + seq_printf(m, "[%d] = %u\n", i, intcount); total += intcount; } } - len += sprintf(page + len, "total = %u\n", total); - if (len <= off+count) - *eof = 1; - - *start = page + off; - len -= off; - if (len > count) - len = count; - if (len < 0) - len = 0; - - return len; + seq_printf(m, "total = %u\n", total); + return 0; } +static int msp_pci_rd_cnt_open(struct inode *inode, struct file *file) +{ + return single_open(file, show_msp_pci_counts, NULL); +} + +static const struct file_operations msp_pci_rd_cnt_fops = { + .open = msp_pci_rd_cnt_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + /***************************************************************************** * - * FUNCTION: gen_pci_cfg_wr + * FUNCTION: gen_pci_cfg_wr_show * _________________________________________________________________________ * * DESCRIPTION: Generates a configuration write cycle for debug purposes. @@ -112,37 +107,30 @@ static int read_msp_pci_counts(char *page, char **start, off_t off, * PCI bus. Intent is that this function by invocable from * the /proc filesystem. * - * INPUTS: page - part of STDOUT calculation - * off - part of STDOUT calculation - * count - part of STDOUT calculation - * data - unused + * INPUTS: m - synthetic file construction data + * v - iterator * - * OUTPUTS: start - new start location - * eof - end of file pointer - * - * RETURNS: len - STDOUT length + * RETURNS: 0 or error * ****************************************************************************/ -static int gen_pci_cfg_wr(char *page, char **start, off_t off, - int count, int *eof, void *data) +static int gen_pci_cfg_wr_show(struct seq_file *m, void *v) { unsigned char where = 0; /* Write to static Device/Vendor ID */ unsigned char bus_num = 0; /* Bus 0 */ unsigned char dev_fn = 0xF; /* Arbitrary device number */ u32 wr_data = 0xFF00AA00; /* Arbitrary data */ struct msp_pci_regs *preg = (void *)PCI_BASE_REG; - int len = 0; unsigned long value; int intr; - len += sprintf(page + len, "PMC MSP PCI: Beginning\n"); + seq_puts(m, "PMC MSP PCI: Beginning\n"); if (proc_init == 0) { pci_proc_init(); proc_init = ~0; } - len += sprintf(page + len, "PMC MSP PCI: Before Cfg Wr\n"); + seq_puts(m, "PMC MSP PCI: Before Cfg Wr\n"); /* * Generate PCI Configuration Write Cycle @@ -168,21 +156,22 @@ static int gen_pci_cfg_wr(char *page, char **start, off_t off, */ intr = preg->if_status; - len += sprintf(page + len, "PMC MSP PCI: After Cfg Wr\n"); - - /* Handle STDOUT calculations */ - if (len <= off+count) - *eof = 1; - *start = page + off; - len -= off; - if (len > count) - len = count; - if (len < 0) - len = 0; - - return len; + seq_puts(m, "PMC MSP PCI: After Cfg Wr\n"); + return 0; } +static int gen_pci_cfg_wr_open(struct inode *inode, struct file *file) +{ + return single_open(file, gen_pci_cfg_wr_show, NULL); +} + +static const struct file_operations gen_pci_cfg_wr_fops = { + .open = gen_pci_cfg_wr_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + /***************************************************************************** * * FUNCTION: pci_proc_init @@ -199,10 +188,8 @@ static int gen_pci_cfg_wr(char *page, char **start, off_t off, ****************************************************************************/ static void pci_proc_init(void) { - create_proc_read_entry("pmc_msp_pci_rd_cnt", 0, NULL, - read_msp_pci_counts, NULL); - create_proc_read_entry("pmc_msp_pci_cfg_wr", 0, NULL, - gen_pci_cfg_wr, NULL); + proc_create("pmc_msp_pci_rd_cnt", 0, NULL, &msp_pci_rd_cnt_fops); + proc_create("pmc_msp_pci_cfg_wr", 0, NULL, &gen_pci_cfg_wr_fops); } #endif /* CONFIG_PROC_FS && PCI_COUNTERS */ diff --git a/arch/mips/sibyte/sb1250/bus_watcher.c b/arch/mips/sibyte/sb1250/bus_watcher.c index e651105b3f0b..cb1e3cb37d70 100644 --- a/arch/mips/sibyte/sb1250/bus_watcher.c +++ b/arch/mips/sibyte/sb1250/bus_watcher.c @@ -30,6 +30,7 @@ #include #include #include +#include #include #include @@ -99,63 +100,60 @@ void check_bus_watcher(void) printk("Bus watcher indicates no error\n"); } -static int bw_print_buffer(char *page, struct bw_stats_struct *stats) -{ - int len; - - len = sprintf(page, "SiByte Bus Watcher statistics\n"); - len += sprintf(page+len, "-----------------------------\n"); - len += sprintf(page+len, "L2-d-cor %8ld\nL2-d-bad %8ld\n", - stats->l2_cor_d, stats->l2_bad_d); - len += sprintf(page+len, "L2-t-cor %8ld\nL2-t-bad %8ld\n", - stats->l2_cor_t, stats->l2_bad_t); - len += sprintf(page+len, "MC-d-cor %8ld\nMC-d-bad %8ld\n", - stats->mem_cor_d, stats->mem_bad_d); - len += sprintf(page+len, "IO-err %8ld\n", stats->bus_error); - len += sprintf(page+len, "\nLast recorded signature:\n"); - len += sprintf(page+len, "Request %02x from %d, answered by %d with Dcode %d\n", - (unsigned int)(G_SCD_BERR_TID(stats->status) & 0x3f), - (int)(G_SCD_BERR_TID(stats->status) >> 6), - (int)G_SCD_BERR_RID(stats->status), - (int)G_SCD_BERR_DCODE(stats->status)); - /* XXXKW indicate multiple errors between printings, or stats - collection (or both)? */ - if (stats->status & M_SCD_BERR_MULTERRS) - len += sprintf(page+len, "Multiple errors observed since last check.\n"); - if (stats->status_printed) { - len += sprintf(page+len, "(no change since last printing)\n"); - } else { - stats->status_printed = 1; - } - - return len; -} - #ifdef CONFIG_PROC_FS /* For simplicity, I want to assume a single read is required each time */ -static int bw_read_proc(char *page, char **start, off_t off, - int count, int *eof, void *data) +static int bw_proc_show(struct seq_file *m, void *v) { - int len; + struct bw_stats_struct *stats = m->private; - if (off == 0) { - len = bw_print_buffer(page, data); - *start = page; + seq_puts(m, "SiByte Bus Watcher statistics\n"); + seq_puts(m, "-----------------------------\n"); + seq_printf(m, "L2-d-cor %8ld\nL2-d-bad %8ld\n", + stats->l2_cor_d, stats->l2_bad_d); + seq_printf(m, "L2-t-cor %8ld\nL2-t-bad %8ld\n", + stats->l2_cor_t, stats->l2_bad_t); + seq_printf(m, "MC-d-cor %8ld\nMC-d-bad %8ld\n", + stats->mem_cor_d, stats->mem_bad_d); + seq_printf(m, "IO-err %8ld\n", stats->bus_error); + seq_puts(m, "\nLast recorded signature:\n"); + seq_printf(m, "Request %02x from %d, answered by %d with Dcode %d\n", + (unsigned int)(G_SCD_BERR_TID(stats->status) & 0x3f), + (int)(G_SCD_BERR_TID(stats->status) >> 6), + (int)G_SCD_BERR_RID(stats->status), + (int)G_SCD_BERR_DCODE(stats->status)); + /* XXXKW indicate multiple errors between printings, or stats + collection (or both)? */ + if (stats->status & M_SCD_BERR_MULTERRS) + seq_puts(m, "Multiple errors observed since last check.\n"); + if (stats->status_printed) { + seq_puts(m, "(no change since last printing)\n"); } else { - len = 0; - *eof = 1; + stats->status_printed = 1; } - return len; + + return 0; } +static int bw_proc_open(struct inode *inode, struct file *file) +{ + return single_open(file, bw_proc_show, PDE_DATA(inode)); +} + +static const struct file_operations bw_proc_fops = { + .open = bw_proc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + static void create_proc_decoder(struct bw_stats_struct *stats) { struct proc_dir_entry *ent; - ent = create_proc_read_entry("bus_watcher", S_IWUSR | S_IRUGO, NULL, - bw_read_proc, stats); + ent = proc_create_data("bus_watcher", S_IWUSR | S_IRUGO, NULL, + &bw_proc_fops, stats); if (!ent) { printk(KERN_INFO "Unable to initialize bus_watcher /proc entry\n"); return; @@ -210,11 +208,6 @@ static irqreturn_t sibyte_bw_int(int irq, void *data) stats->bus_error += G_SCD_MEM_BUSERR(cntr); csr_out32(0, IOADDR(A_BUS_MEM_IO_ERRORS)); -#ifndef CONFIG_PROC_FS - bw_print_buffer(bw_buf, stats); - printk(bw_buf); -#endif - return IRQ_HANDLED; } From e781c3d794282d9fa3ba377fdef221fc948974ec Mon Sep 17 00:00:00 2001 From: David Howells Date: Thu, 11 Apr 2013 01:28:40 +0100 Subject: [PATCH 172/204] ia64: Don't use create_proc_read_entry() Don't use create_proc_read_entry() as that is deprecated, but rather use proc_create_data() and seq_file instead. Signed-off-by: David Howells cc: Tony Luck cc: Fenghua Yu cc: linux-ia64@vger.kernel.org Signed-off-by: Al Viro --- arch/ia64/kernel/palinfo.c | 492 +++++++++++------------- arch/ia64/kernel/salinfo.c | 41 +- arch/ia64/sn/kernel/sn2/prominfo_proc.c | 110 +++--- 3 files changed, 298 insertions(+), 345 deletions(-) diff --git a/arch/ia64/kernel/palinfo.c b/arch/ia64/kernel/palinfo.c index 79521d5499f9..b17129e3b7c8 100644 --- a/arch/ia64/kernel/palinfo.c +++ b/arch/ia64/kernel/palinfo.c @@ -22,6 +22,7 @@ #include #include #include +#include #include #include #include @@ -41,7 +42,7 @@ MODULE_LICENSE("GPL"); #define PALINFO_VERSION "0.5" -typedef int (*palinfo_func_t)(char*); +typedef int (*palinfo_func_t)(struct seq_file *); typedef struct { const char *name; /* name of the proc entry */ @@ -54,7 +55,7 @@ typedef struct { * A bunch of string array to get pretty printing */ -static char *cache_types[] = { +static const char *cache_types[] = { "", /* not used */ "Instruction", "Data", @@ -122,19 +123,16 @@ static const char *mem_attrib[]={ * - a pointer to the end of the buffer * */ -static char * -bitvector_process(char *p, u64 vector) +static void bitvector_process(struct seq_file *m, u64 vector) { int i,j; - const char *units[]={ "", "K", "M", "G", "T" }; + static const char *units[]={ "", "K", "M", "G", "T" }; for (i=0, j=0; i < 64; i++ , j=i/10) { - if (vector & 0x1) { - p += sprintf(p, "%d%s ", 1 << (i-j*10), units[j]); - } + if (vector & 0x1) + seq_printf(m, "%d%s ", 1 << (i-j*10), units[j]); vector >>= 1; } - return p; } /* @@ -149,8 +147,7 @@ bitvector_process(char *p, u64 vector) * - a pointer to the end of the buffer * */ -static char * -bitregister_process(char *p, u64 *reg_info, int max) +static void bitregister_process(struct seq_file *m, u64 *reg_info, int max) { int i, begin, skip = 0; u64 value = reg_info[0]; @@ -163,9 +160,9 @@ bitregister_process(char *p, u64 *reg_info, int max) if ((value & 0x1) == 0 && skip == 0) { if (begin <= i - 2) - p += sprintf(p, "%d-%d ", begin, i-1); + seq_printf(m, "%d-%d ", begin, i-1); else - p += sprintf(p, "%d ", i-1); + seq_printf(m, "%d ", i-1); skip = 1; begin = -1; } else if ((value & 0x1) && skip == 1) { @@ -176,19 +173,15 @@ bitregister_process(char *p, u64 *reg_info, int max) } if (begin > -1) { if (begin < 127) - p += sprintf(p, "%d-127", begin); + seq_printf(m, "%d-127", begin); else - p += sprintf(p, "127"); + seq_puts(m, "127"); } - - return p; } -static int -power_info(char *page) +static int power_info(struct seq_file *m) { s64 status; - char *p = page; u64 halt_info_buffer[8]; pal_power_mgmt_info_u_t *halt_info =(pal_power_mgmt_info_u_t *)halt_info_buffer; int i; @@ -198,26 +191,25 @@ power_info(char *page) for (i=0; i < 8 ; i++ ) { if (halt_info[i].pal_power_mgmt_info_s.im == 1) { - p += sprintf(p, "Power level %d:\n" - "\tentry_latency : %d cycles\n" - "\texit_latency : %d cycles\n" - "\tpower consumption : %d mW\n" - "\tCache+TLB coherency : %s\n", i, - halt_info[i].pal_power_mgmt_info_s.entry_latency, - halt_info[i].pal_power_mgmt_info_s.exit_latency, - halt_info[i].pal_power_mgmt_info_s.power_consumption, - halt_info[i].pal_power_mgmt_info_s.co ? "Yes" : "No"); + seq_printf(m, + "Power level %d:\n" + "\tentry_latency : %d cycles\n" + "\texit_latency : %d cycles\n" + "\tpower consumption : %d mW\n" + "\tCache+TLB coherency : %s\n", i, + halt_info[i].pal_power_mgmt_info_s.entry_latency, + halt_info[i].pal_power_mgmt_info_s.exit_latency, + halt_info[i].pal_power_mgmt_info_s.power_consumption, + halt_info[i].pal_power_mgmt_info_s.co ? "Yes" : "No"); } else { - p += sprintf(p,"Power level %d: not implemented\n",i); + seq_printf(m,"Power level %d: not implemented\n", i); } } - return p - page; + return 0; } -static int -cache_info(char *page) +static int cache_info(struct seq_file *m) { - char *p = page; unsigned long i, levels, unique_caches; pal_cache_config_info_t cci; int j, k; @@ -228,73 +220,74 @@ cache_info(char *page) return 0; } - p += sprintf(p, "Cache levels : %ld\nUnique caches : %ld\n\n", levels, unique_caches); + seq_printf(m, "Cache levels : %ld\nUnique caches : %ld\n\n", + levels, unique_caches); for (i=0; i < levels; i++) { - for (j=2; j >0 ; j--) { - /* even without unification some level may not be present */ - if ((status=ia64_pal_cache_config_info(i,j, &cci)) != 0) { + if ((status=ia64_pal_cache_config_info(i,j, &cci)) != 0) continue; - } - p += sprintf(p, - "%s Cache level %lu:\n" - "\tSize : %u bytes\n" - "\tAttributes : ", - cache_types[j+cci.pcci_unified], i+1, - cci.pcci_cache_size); - if (cci.pcci_unified) p += sprintf(p, "Unified "); + seq_printf(m, + "%s Cache level %lu:\n" + "\tSize : %u bytes\n" + "\tAttributes : ", + cache_types[j+cci.pcci_unified], i+1, + cci.pcci_cache_size); - p += sprintf(p, "%s\n", cache_mattrib[cci.pcci_cache_attr]); + if (cci.pcci_unified) + seq_puts(m, "Unified "); - p += sprintf(p, - "\tAssociativity : %d\n" - "\tLine size : %d bytes\n" - "\tStride : %d bytes\n", - cci.pcci_assoc, 1<>=1; } - p += sprintf(p, "\n\tLoad hints : "); + seq_puts(m, "\n\tLoad hints : "); for(k=0; k < 8; k++ ) { if (cci.pcci_ld_hints & 0x1) - p += sprintf(p, "[%s]", cache_ld_hints[k]); + seq_printf(m, "[%s]", cache_ld_hints[k]); cci.pcci_ld_hints >>=1; } - p += sprintf(p, - "\n\tAlias boundary : %d byte(s)\n" - "\tTag LSB : %d\n" - "\tTag MSB : %d\n", - 1<0 ; j--) { tc_pages = 0; /* just in case */ - /* even without unification, some levels may not be present */ - if ((status=ia64_pal_vm_info(i,j, &tc_info, &tc_pages)) != 0) { + if ((status=ia64_pal_vm_info(i,j, &tc_info, &tc_pages)) != 0) continue; - } - p += sprintf(p, + seq_printf(m, "\n%s Translation Cache Level %d:\n" "\tHash sets : %d\n" "\tAssociativity : %d\n" @@ -403,15 +394,15 @@ vm_info(char *page) tc_info.tc_num_entries); if (tc_info.tc_pf) - p += sprintf(p, "PreferredPageSizeOptimized "); + seq_puts(m, "PreferredPageSizeOptimized "); if (tc_info.tc_unified) - p += sprintf(p, "Unified "); + seq_puts(m, "Unified "); if (tc_info.tc_reduce_tr) - p += sprintf(p, "TCReduction"); + seq_puts(m, "TCReduction"); - p += sprintf(p, "\n\tSupported page sizes: "); + seq_puts(m, "\n\tSupported page sizes: "); - p = bitvector_process(p, tc_pages); + bitvector_process(m, tc_pages); /* when unified date (j=2) is enough */ if (tc_info.tc_unified) @@ -419,16 +410,14 @@ vm_info(char *page) } } } - p += sprintf(p, "\n"); - return p - page; + seq_putc(m, '\n'); + return 0; } -static int -register_info(char *page) +static int register_info(struct seq_file *m) { - char *p = page; u64 reg_info[2]; u64 info; unsigned long phys_stacked; @@ -442,35 +431,31 @@ register_info(char *page) }; for(info=0; info < 4; info++) { - - if (ia64_pal_register_info(info, ®_info[0], ®_info[1]) != 0) return 0; - - p += sprintf(p, "%-32s : ", info_type[info]); - - p = bitregister_process(p, reg_info, 128); - - p += sprintf(p, "\n"); + if (ia64_pal_register_info(info, ®_info[0], ®_info[1]) != 0) + return 0; + seq_printf(m, "%-32s : ", info_type[info]); + bitregister_process(m, reg_info, 128); + seq_putc(m, '\n'); } - if (ia64_pal_rse_info(&phys_stacked, &hints) == 0) { + if (ia64_pal_rse_info(&phys_stacked, &hints) == 0) + seq_printf(m, + "RSE stacked physical registers : %ld\n" + "RSE load/store hints : %ld (%s)\n", + phys_stacked, hints.ph_data, + hints.ph_data < RSE_HINTS_COUNT ? rse_hints[hints.ph_data]: "(??)"); - p += sprintf(p, - "RSE stacked physical registers : %ld\n" - "RSE load/store hints : %ld (%s)\n", - phys_stacked, hints.ph_data, - hints.ph_data < RSE_HINTS_COUNT ? rse_hints[hints.ph_data]: "(??)"); - } if (ia64_pal_debug_info(&iregs, &dregs)) return 0; - p += sprintf(p, - "Instruction debug register pairs : %ld\n" - "Data debug register pairs : %ld\n", iregs, dregs); + seq_printf(m, + "Instruction debug register pairs : %ld\n" + "Data debug register pairs : %ld\n", iregs, dregs); - return p - page; + return 0; } -static char *proc_features_0[]={ /* Feature set 0 */ +static const char *const proc_features_0[]={ /* Feature set 0 */ NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL, NULL,NULL,NULL,NULL,NULL,NULL,NULL, NULL,NULL, NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL, @@ -502,7 +487,7 @@ static char *proc_features_0[]={ /* Feature set 0 */ "Enable BERR promotion" }; -static char *proc_features_16[]={ /* Feature set 16 */ +static const char *const proc_features_16[]={ /* Feature set 16 */ "Disable ETM", "Enable ETM", "Enable MCA on half-way timer", @@ -522,7 +507,7 @@ static char *proc_features_16[]={ /* Feature set 16 */ NULL, NULL, NULL, NULL, NULL }; -static char **proc_features[]={ +static const char *const *const proc_features[]={ proc_features_0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, @@ -530,11 +515,10 @@ static char **proc_features[]={ NULL, NULL, NULL, NULL, }; -static char * feature_set_info(char *page, u64 avail, u64 status, u64 control, - unsigned long set) +static void feature_set_info(struct seq_file *m, u64 avail, u64 status, u64 control, + unsigned long set) { - char *p = page; - char **vf, **v; + const char *const *vf, *const *v; int i; vf = v = proc_features[set]; @@ -547,13 +531,13 @@ static char * feature_set_info(char *page, u64 avail, u64 status, u64 control, if (vf) v = vf + i; if ( v && *v ) { - p += sprintf(p, "%-40s : %s %s\n", *v, + seq_printf(m, "%-40s : %s %s\n", *v, avail & 0x1 ? (status & 0x1 ? - "On " : "Off"): "", + "On " : "Off"): "", avail & 0x1 ? (control & 0x1 ? "Ctrl" : "NoCtrl"): ""); } else { - p += sprintf(p, "Feature set %2ld bit %2d\t\t\t" + seq_printf(m, "Feature set %2ld bit %2d\t\t\t" " : %s %s\n", set, i, avail & 0x1 ? (status & 0x1 ? @@ -562,36 +546,32 @@ static char * feature_set_info(char *page, u64 avail, u64 status, u64 control, "Ctrl" : "NoCtrl"): ""); } } - return p; } -static int -processor_info(char *page) +static int processor_info(struct seq_file *m) { - char *p = page; u64 avail=1, status=1, control=1, feature_set=0; s64 ret; do { ret = ia64_pal_proc_get_features(&avail, &status, &control, feature_set); - if (ret < 0) { - return p - page; - } + if (ret < 0) + return 0; + if (ret == 1) { feature_set++; continue; } - p = feature_set_info(p, avail, status, control, feature_set); - + feature_set_info(m, avail, status, control, feature_set); feature_set++; } while(1); - return p - page; + return 0; } -static const char *bus_features[]={ +static const char *const bus_features[]={ NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL, NULL,NULL,NULL,NULL,NULL,NULL,NULL, NULL,NULL, NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL, @@ -617,125 +597,118 @@ static const char *bus_features[]={ }; -static int -bus_info(char *page) +static int bus_info(struct seq_file *m) { - char *p = page; - const char **v = bus_features; + const char *const *v = bus_features; pal_bus_features_u_t av, st, ct; u64 avail, status, control; int i; s64 ret; - if ((ret=ia64_pal_bus_get_features(&av, &st, &ct)) != 0) return 0; + if ((ret=ia64_pal_bus_get_features(&av, &st, &ct)) != 0) + return 0; avail = av.pal_bus_features_val; status = st.pal_bus_features_val; control = ct.pal_bus_features_val; for(i=0; i < 64; i++, v++, avail >>=1, status >>=1, control >>=1) { - if ( ! *v ) continue; - p += sprintf(p, "%-48s : %s%s %s\n", *v, - avail & 0x1 ? "" : "NotImpl", - avail & 0x1 ? (status & 0x1 ? "On" : "Off"): "", - avail & 0x1 ? (control & 0x1 ? "Ctrl" : "NoCtrl"): ""); + if ( ! *v ) + continue; + seq_printf(m, "%-48s : %s%s %s\n", *v, + avail & 0x1 ? "" : "NotImpl", + avail & 0x1 ? (status & 0x1 ? "On" : "Off"): "", + avail & 0x1 ? (control & 0x1 ? "Ctrl" : "NoCtrl"): ""); } - return p - page; + return 0; } -static int -version_info(char *page) +static int version_info(struct seq_file *m) { pal_version_u_t min_ver, cur_ver; - char *p = page; if (ia64_pal_version(&min_ver, &cur_ver) != 0) return 0; - p += sprintf(p, - "PAL_vendor : 0x%02x (min=0x%02x)\n" - "PAL_A : %02x.%02x (min=%02x.%02x)\n" - "PAL_B : %02x.%02x (min=%02x.%02x)\n", - cur_ver.pal_version_s.pv_pal_vendor, - min_ver.pal_version_s.pv_pal_vendor, - cur_ver.pal_version_s.pv_pal_a_model, - cur_ver.pal_version_s.pv_pal_a_rev, - min_ver.pal_version_s.pv_pal_a_model, - min_ver.pal_version_s.pv_pal_a_rev, - cur_ver.pal_version_s.pv_pal_b_model, - cur_ver.pal_version_s.pv_pal_b_rev, - min_ver.pal_version_s.pv_pal_b_model, - min_ver.pal_version_s.pv_pal_b_rev); - return p - page; + seq_printf(m, + "PAL_vendor : 0x%02x (min=0x%02x)\n" + "PAL_A : %02x.%02x (min=%02x.%02x)\n" + "PAL_B : %02x.%02x (min=%02x.%02x)\n", + cur_ver.pal_version_s.pv_pal_vendor, + min_ver.pal_version_s.pv_pal_vendor, + cur_ver.pal_version_s.pv_pal_a_model, + cur_ver.pal_version_s.pv_pal_a_rev, + min_ver.pal_version_s.pv_pal_a_model, + min_ver.pal_version_s.pv_pal_a_rev, + cur_ver.pal_version_s.pv_pal_b_model, + cur_ver.pal_version_s.pv_pal_b_rev, + min_ver.pal_version_s.pv_pal_b_model, + min_ver.pal_version_s.pv_pal_b_rev); + return 0; } -static int -perfmon_info(char *page) +static int perfmon_info(struct seq_file *m) { - char *p = page; u64 pm_buffer[16]; pal_perf_mon_info_u_t pm_info; - if (ia64_pal_perf_mon_info(pm_buffer, &pm_info) != 0) return 0; + if (ia64_pal_perf_mon_info(pm_buffer, &pm_info) != 0) + return 0; - p += sprintf(p, - "PMC/PMD pairs : %d\n" - "Counter width : %d bits\n" - "Cycle event number : %d\n" - "Retired event number : %d\n" - "Implemented PMC : ", - pm_info.pal_perf_mon_info_s.generic, pm_info.pal_perf_mon_info_s.width, - pm_info.pal_perf_mon_info_s.cycles, pm_info.pal_perf_mon_info_s.retired); + seq_printf(m, + "PMC/PMD pairs : %d\n" + "Counter width : %d bits\n" + "Cycle event number : %d\n" + "Retired event number : %d\n" + "Implemented PMC : ", + pm_info.pal_perf_mon_info_s.generic, + pm_info.pal_perf_mon_info_s.width, + pm_info.pal_perf_mon_info_s.cycles, + pm_info.pal_perf_mon_info_s.retired); - p = bitregister_process(p, pm_buffer, 256); - p += sprintf(p, "\nImplemented PMD : "); - p = bitregister_process(p, pm_buffer+4, 256); - p += sprintf(p, "\nCycles count capable : "); - p = bitregister_process(p, pm_buffer+8, 256); - p += sprintf(p, "\nRetired bundles count capable : "); + bitregister_process(m, pm_buffer, 256); + seq_puts(m, "\nImplemented PMD : "); + bitregister_process(m, pm_buffer+4, 256); + seq_puts(m, "\nCycles count capable : "); + bitregister_process(m, pm_buffer+8, 256); + seq_puts(m, "\nRetired bundles count capable : "); #ifdef CONFIG_ITANIUM /* * PAL_PERF_MON_INFO reports that only PMC4 can be used to count CPU_CYCLES * which is wrong, both PMC4 and PMD5 support it. */ - if (pm_buffer[12] == 0x10) pm_buffer[12]=0x30; + if (pm_buffer[12] == 0x10) + pm_buffer[12]=0x30; #endif - p = bitregister_process(p, pm_buffer+12, 256); - - p += sprintf(p, "\n"); - - return p - page; + bitregister_process(m, pm_buffer+12, 256); + seq_putc(m, '\n'); + return 0; } -static int -frequency_info(char *page) +static int frequency_info(struct seq_file *m) { - char *p = page; struct pal_freq_ratio proc, itc, bus; unsigned long base; if (ia64_pal_freq_base(&base) == -1) - p += sprintf(p, "Output clock : not implemented\n"); + seq_puts(m, "Output clock : not implemented\n"); else - p += sprintf(p, "Output clock : %ld ticks/s\n", base); + seq_printf(m, "Output clock : %ld ticks/s\n", base); if (ia64_pal_freq_ratios(&proc, &bus, &itc) != 0) return 0; - p += sprintf(p, + seq_printf(m, "Processor/Clock ratio : %d/%d\n" "Bus/Clock ratio : %d/%d\n" "ITC/Clock ratio : %d/%d\n", proc.num, proc.den, bus.num, bus.den, itc.num, itc.den); - - return p - page; + return 0; } -static int -tr_info(char *page) +static int tr_info(struct seq_file *m) { - char *p = page; long status; pal_tr_valid_u_t tr_valid; u64 tr_buffer[4]; @@ -794,39 +767,40 @@ tr_info(char *page) ifa_reg = (struct ifa_reg *)&tr_buffer[2]; - if (ifa_reg->valid == 0) continue; + if (ifa_reg->valid == 0) + continue; gr_reg = (struct gr_reg *)tr_buffer; itir_reg = (struct itir_reg *)&tr_buffer[1]; rid_reg = (struct rid_reg *)&tr_buffer[3]; pgm = -1 << (itir_reg->ps - 12); - p += sprintf(p, - "%cTR%lu: av=%d pv=%d dv=%d mv=%d\n" - "\tppn : 0x%lx\n" - "\tvpn : 0x%lx\n" - "\tps : ", - "ID"[i], j, - tr_valid.pal_tr_valid_s.access_rights_valid, - tr_valid.pal_tr_valid_s.priv_level_valid, - tr_valid.pal_tr_valid_s.dirty_bit_valid, - tr_valid.pal_tr_valid_s.mem_attr_valid, - (gr_reg->ppn & pgm)<< 12, (ifa_reg->vpn & pgm)<< 12); + seq_printf(m, + "%cTR%lu: av=%d pv=%d dv=%d mv=%d\n" + "\tppn : 0x%lx\n" + "\tvpn : 0x%lx\n" + "\tps : ", + "ID"[i], j, + tr_valid.pal_tr_valid_s.access_rights_valid, + tr_valid.pal_tr_valid_s.priv_level_valid, + tr_valid.pal_tr_valid_s.dirty_bit_valid, + tr_valid.pal_tr_valid_s.mem_attr_valid, + (gr_reg->ppn & pgm)<< 12, (ifa_reg->vpn & pgm)<< 12); - p = bitvector_process(p, 1<< itir_reg->ps); + bitvector_process(m, 1<< itir_reg->ps); - p += sprintf(p, - "\n\tpl : %d\n" - "\tar : %d\n" - "\trid : %x\n" - "\tp : %d\n" - "\tma : %d\n" - "\td : %d\n", - gr_reg->pl, gr_reg->ar, rid_reg->rid, gr_reg->p, gr_reg->ma, - gr_reg->d); + seq_printf(m, + "\n\tpl : %d\n" + "\tar : %d\n" + "\trid : %x\n" + "\tp : %d\n" + "\tma : %d\n" + "\td : %d\n", + gr_reg->pl, gr_reg->ar, rid_reg->rid, gr_reg->p, gr_reg->ma, + gr_reg->d); } } - return p - page; + return 0; } @@ -834,7 +808,7 @@ tr_info(char *page) /* * List {name,function} pairs for every entry in /proc/palinfo/cpu* */ -static palinfo_entry_t palinfo_entries[]={ +static const palinfo_entry_t palinfo_entries[]={ { "version_info", version_info, }, { "vm_info", vm_info, }, { "cache_info", cache_info, }, @@ -876,7 +850,7 @@ typedef union { */ typedef struct { palinfo_func_t func; /* pointer to function to call */ - char *page; /* buffer to store results */ + struct seq_file *m; /* buffer to store results */ int ret; /* return value from call */ } palinfo_smp_data_t; @@ -889,7 +863,7 @@ static void palinfo_smp_call(void *info) { palinfo_smp_data_t *data = (palinfo_smp_data_t *)info; - data->ret = (*data->func)(data->page); + data->ret = (*data->func)(data->m); } /* @@ -899,13 +873,13 @@ palinfo_smp_call(void *info) * otherwise how many bytes in the "page" buffer were written */ static -int palinfo_handle_smp(pal_func_cpu_u_t *f, char *page) +int palinfo_handle_smp(struct seq_file *m, pal_func_cpu_u_t *f) { palinfo_smp_data_t ptr; int ret; ptr.func = palinfo_entries[f->func_id].proc_read; - ptr.page = page; + ptr.m = m; ptr.ret = 0; /* just in case */ @@ -919,7 +893,7 @@ int palinfo_handle_smp(pal_func_cpu_u_t *f, char *page) } #else /* ! CONFIG_SMP */ static -int palinfo_handle_smp(pal_func_cpu_u_t *f, char *page) +int palinfo_handle_smp(struct seq_file *m, pal_func_cpu_u_t *f) { printk(KERN_ERR "palinfo: should not be called with non SMP kernel\n"); return 0; @@ -929,34 +903,35 @@ int palinfo_handle_smp(pal_func_cpu_u_t *f, char *page) /* * Entry point routine: all calls go through this function */ -static int -palinfo_read_entry(char *page, char **start, off_t off, int count, int *eof, void *data) +static int proc_palinfo_show(struct seq_file *m, void *v) { - int len=0; - pal_func_cpu_u_t *f = (pal_func_cpu_u_t *)&data; + pal_func_cpu_u_t *f = (pal_func_cpu_u_t *)&m->private; /* * in SMP mode, we may need to call another CPU to get correct * information. PAL, by definition, is processor specific */ if (f->req_cpu == get_cpu()) - len = (*palinfo_entries[f->func_id].proc_read)(page); + (*palinfo_entries[f->func_id].proc_read)(m); else - len = palinfo_handle_smp(f, page); + palinfo_handle_smp(m, f); put_cpu(); - - if (len <= off+count) *eof = 1; - - *start = page + off; - len -= off; - - if (len>count) len = count; - if (len<0) len = 0; - - return len; + return 0; } +static int proc_palinfo_open(struct inode *inode, struct file *file) +{ + return single_open(file, proc_palinfo_show, PDE_DATA(inode)); +} + +static const struct file_operations proc_palinfo_fops = { + .open = proc_palinfo_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + static void __cpuinit create_palinfo_proc_entries(unsigned int cpu) { @@ -974,9 +949,8 @@ create_palinfo_proc_entries(unsigned int cpu) for (j=0; j < NR_PALINFO_ENTRIES; j++) { f.func_id = j; - create_proc_read_entry( - palinfo_entries[j].name, 0, cpu_dir, - palinfo_read_entry, (void *)f.value); + proc_create_data(palinfo_entries[j].name, 0, cpu_dir, + &proc_palinfo_fops, (void *)f.value); } } diff --git a/arch/ia64/kernel/salinfo.c b/arch/ia64/kernel/salinfo.c index a97d75b9c5ec..5035245cb258 100644 --- a/arch/ia64/kernel/salinfo.c +++ b/arch/ia64/kernel/salinfo.c @@ -40,6 +40,7 @@ #include #include #include +#include #include #include #include @@ -53,7 +54,7 @@ MODULE_AUTHOR("Jesse Barnes "); MODULE_DESCRIPTION("/proc interface to IA-64 SAL features"); MODULE_LICENSE("GPL"); -static int salinfo_read(char *page, char **start, off_t off, int count, int *eof, void *data); +static const struct file_operations proc_salinfo_fops; typedef struct { const char *name; /* name of the proc entry */ @@ -65,7 +66,7 @@ typedef struct { * List {name,feature} pairs for every entry in /proc/sal/ * that this module exports */ -static salinfo_entry_t salinfo_entries[]={ +static const salinfo_entry_t salinfo_entries[]={ { "bus_lock", IA64_SAL_PLATFORM_FEATURE_BUS_LOCK, }, { "irq_redirection", IA64_SAL_PLATFORM_FEATURE_IRQ_REDIR_HINT, }, { "ipi_redirection", IA64_SAL_PLATFORM_FEATURE_IPI_REDIR_HINT, }, @@ -629,8 +630,9 @@ salinfo_init(void) for (i=0; i < NR_SALINFO_ENTRIES; i++) { /* pass the feature bit in question as misc data */ - *sdir++ = create_proc_read_entry (salinfo_entries[i].name, 0, salinfo_dir, - salinfo_read, (void *)salinfo_entries[i].feature); + *sdir++ = proc_create_data(salinfo_entries[i].name, 0, salinfo_dir, + &proc_salinfo_fops, + (void *)salinfo_entries[i].feature); } for (i = 0; i < ARRAY_SIZE(salinfo_log_name); i++) { @@ -676,22 +678,23 @@ salinfo_init(void) * 'data' contains an integer that corresponds to the feature we're * testing */ -static int -salinfo_read(char *page, char **start, off_t off, int count, int *eof, void *data) +static int proc_salinfo_show(struct seq_file *m, void *v) { - int len = 0; - - len = sprintf(page, (sal_platform_features & (unsigned long)data) ? "1\n" : "0\n"); - - if (len <= off+count) *eof = 1; - - *start = page + off; - len -= off; - - if (len>count) len = count; - if (len<0) len = 0; - - return len; + unsigned long data = (unsigned long)v; + seq_puts(m, (sal_platform_features & data) ? "1\n" : "0\n"); + return 0; } +static int proc_salinfo_open(struct inode *inode, struct file *file) +{ + return single_open(file, proc_salinfo_show, PDE_DATA(inode)); +} + +static const struct file_operations proc_salinfo_fops = { + .open = proc_salinfo_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + module_init(salinfo_init); diff --git a/arch/ia64/sn/kernel/sn2/prominfo_proc.c b/arch/ia64/sn/kernel/sn2/prominfo_proc.c index 90298bda936a..daa8d6badb16 100644 --- a/arch/ia64/sn/kernel/sn2/prominfo_proc.c +++ b/arch/ia64/sn/kernel/sn2/prominfo_proc.c @@ -11,6 +11,7 @@ #include #include #include +#include #include #include #include @@ -101,18 +102,18 @@ get_fit_entry(unsigned long nasid, int index, unsigned long *fentry, /* * These two routines display the FIT table for each node. */ -static int dump_fit_entry(char *page, unsigned long *fentry) +static void dump_fit_entry(struct seq_file *m, unsigned long *fentry) { unsigned type; type = FIT_TYPE(fentry[1]); - return sprintf(page, "%02x %-25s %x.%02x %016lx %u\n", - type, - fit_type_name(type), - FIT_MAJOR(fentry[1]), FIT_MINOR(fentry[1]), - fentry[0], - /* mult by sixteen to get size in bytes */ - (unsigned)(fentry[1] & 0xffffff) * 16); + seq_printf(m, "%02x %-25s %x.%02x %016lx %u\n", + type, + fit_type_name(type), + FIT_MAJOR(fentry[1]), FIT_MINOR(fentry[1]), + fentry[0], + /* mult by sixteen to get size in bytes */ + (unsigned)(fentry[1] & 0xffffff) * 16); } @@ -124,31 +125,39 @@ static int dump_fit_entry(char *page, unsigned long *fentry) * OK except for 4kB pages (and no one is going to do that on SN * anyway). */ -static int -dump_fit(char *page, unsigned long nasid) +static int proc_fit_show(struct seq_file *m, void *v) { + unsigned long nasid = (unsigned long)m->private; unsigned long fentry[2]; int index; - char *p; - p = page; for (index=0;;index++) { BUG_ON(index * 60 > PAGE_SIZE); if (get_fit_entry(nasid, index, fentry, NULL, 0)) break; - p += dump_fit_entry(p, fentry); + dump_fit_entry(m, fentry); } - - return p - page; + return 0; } -static int -dump_version(char *page, unsigned long nasid) +static int proc_fit_open(struct inode *inode, struct file *file) { + return single_open(file, proc_fit_show, PDE_DATA(inode)); +} + +static const struct file_operations proc_fit_fops = { + .open = proc_fit_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + +static int proc_version_show(struct seq_file *m, void *v) +{ + unsigned long nasid = (unsigned long)m->private; unsigned long fentry[2]; char banner[128]; int index; - int len; for (index = 0; ; index++) { if (get_fit_entry(nasid, index, fentry, banner, @@ -158,56 +167,24 @@ dump_version(char *page, unsigned long nasid) break; } - len = sprintf(page, "%x.%02x\n", FIT_MAJOR(fentry[1]), - FIT_MINOR(fentry[1])); - page += len; + seq_printf(m, "%x.%02x\n", FIT_MAJOR(fentry[1]), FIT_MINOR(fentry[1])); if (banner[0]) - len += snprintf(page, PAGE_SIZE-len, "%s\n", banner); - - return len; + seq_printf(m, "%s\n", banner); + return 0; } -/* same as in proc_misc.c */ -static int -proc_calc_metrics(char *page, char **start, off_t off, int count, int *eof, - int len) +static int proc_version_open(struct inode *inode, struct file *file) { - if (len <= off + count) - *eof = 1; - *start = page + off; - len -= off; - if (len > count) - len = count; - if (len < 0) - len = 0; - return len; + return single_open(file, proc_version_show, PDE_DATA(inode)); } -static int -read_version_entry(char *page, char **start, off_t off, int count, int *eof, - void *data) -{ - int len; - - /* data holds the NASID of the node */ - len = dump_version(page, (unsigned long)data); - len = proc_calc_metrics(page, start, off, count, eof, len); - return len; -} - -static int -read_fit_entry(char *page, char **start, off_t off, int count, int *eof, - void *data) -{ - int len; - - /* data holds the NASID of the node */ - len = dump_fit(page, (unsigned long)data); - len = proc_calc_metrics(page, start, off, count, eof, len); - - return len; -} +static const struct file_operations proc_version_fops = { + .open = proc_version_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; /* module entry points */ int __init prominfo_init(void); @@ -216,12 +193,11 @@ void __exit prominfo_exit(void); module_init(prominfo_init); module_exit(prominfo_exit); -static struct proc_dir_entry *sgi_prominfo_entry; - #define NODE_NAME_LEN 11 int __init prominfo_init(void) { + struct proc_dir_entry *sgi_prominfo_entry; cnodeid_t cnodeid; if (!ia64_platform_is("sn2")) @@ -241,10 +217,10 @@ int __init prominfo_init(void) if (!dir) continue; nasid = cnodeid_to_nasid(cnodeid); - create_proc_read_entry("fit", 0, dir, read_fit_entry, - (void *)nasid); - create_proc_read_entry("version", 0, dir, - read_version_entry, (void *)nasid); + proc_create_data("fit", 0, dir, + &proc_fit_fops, (void *)nasid); + proc_create_data("version", 0, dir, + &proc_version_fops, (void *)nasid); } return 0; } From 210b834a964c775387098bbc9e3836d3cd0e9b14 Mon Sep 17 00:00:00 2001 From: David Howells Date: Thu, 11 Apr 2013 02:32:46 +0100 Subject: [PATCH 173/204] h8300: Don't use create_proc_read_entry() Don't use create_proc_read_entry() as that is deprecated, but rather use proc_create_data() and seq_file instead. Signed-off-by: David Howells cc: Yoshinori Sato Signed-off-by: Al Viro --- arch/h8300/kernel/gpio.c | 34 ++++++++++++++++++++-------------- 1 file changed, 20 insertions(+), 14 deletions(-) diff --git a/arch/h8300/kernel/gpio.c b/arch/h8300/kernel/gpio.c index f8a4f5b52697..b02c752cd326 100644 --- a/arch/h8300/kernel/gpio.c +++ b/arch/h8300/kernel/gpio.c @@ -11,6 +11,7 @@ #include #include +#include #include #include #include @@ -138,29 +139,34 @@ static char *port_status(int portno) return result; } -static int gpio_proc_read(char *buf, char **start, off_t offset, - int len, int *unused_i, void *unused_v) +static int gpio_proc_show(struct seq_file *m, void *v) { - int c,outlen; static const char port_name[]="123456789ABCDEFGH"; - outlen = 0; + int c; + for (c = 0; c < MAX_PORT; c++) { if (ddrs[c] == NULL) - continue ; - len = sprintf(buf,"P%c: %s\n",port_name[c],port_status(c)); - buf += len; - outlen += len; + continue; + seq_printf(m, "P%c: %s\n", port_name[c], port_status(c)); } - return outlen; + return 0; } +static int gpio_proc_open(struct inode *inode, struct file *file) +{ + return single_open(file, gpio_proc_show, PDE_DATA(inode)); +} + +static const struct file_operations gpio_proc_fops = { + .open = gpio_proc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + static __init int register_proc(void) { - struct proc_dir_entry *proc_gpio; - - proc_gpio = create_proc_read_entry("gpio", S_IRUGO, NULL, - gpio_proc_read, NULL); - return proc_gpio != NULL; + return proc_create("gpio", S_IRUGO, NULL, &gpio_proc_fops) != NULL; } __initcall(register_proc); From 1eb5b23ae72b2b858800c8eee6adeef7c098e767 Mon Sep 17 00:00:00 2001 From: David Howells Date: Thu, 11 Apr 2013 03:04:20 +0100 Subject: [PATCH 174/204] cris: Don't use create_proc_read_entry() Don't use create_proc_read_entry() as that is deprecated, but rather use proc_create_data() and seq_file instead. Signed-off-by: David Howells Acked-by: Jesper Nilsson cc: Mikael Starvik cc: linux-cris-kernel@axis.com Signed-off-by: Al Viro --- arch/cris/arch-v10/kernel/fasttimer.c | 293 ++++++++++++-------------- arch/cris/arch-v32/kernel/fasttimer.c | 290 ++++++++++++------------- 2 files changed, 259 insertions(+), 324 deletions(-) diff --git a/arch/cris/arch-v10/kernel/fasttimer.c b/arch/cris/arch-v10/kernel/fasttimer.c index 52bb9b5531e1..ce6f512968a4 100644 --- a/arch/cris/arch-v10/kernel/fasttimer.c +++ b/arch/cris/arch-v10/kernel/fasttimer.c @@ -25,6 +25,7 @@ #include #include #include +#include #define DEBUG_LOG_INCLUDED @@ -489,196 +490,162 @@ void schedule_usleep(unsigned long us) } #ifdef CONFIG_PROC_FS -static int proc_fasttimer_read(char *buf, char **start, off_t offset, int len - ,int *eof, void *data_unused); -#endif /* CONFIG_PROC_FS */ - -#ifdef CONFIG_PROC_FS - /* This value is very much based on testing */ #define BIG_BUF_SIZE (500 + NUM_TIMER_STATS * 300) -static int proc_fasttimer_read(char *buf, char **start, off_t offset, int len - ,int *eof, void *data_unused) +static int proc_fasttimer_show(struct seq_file *m, void *v) { - unsigned long flags; - int i = 0; - int num_to_show; + unsigned long flags; + int i = 0; + int num_to_show; struct fasttime_t tv; - struct fast_timer *t, *nextt; - static char *bigbuf = NULL; - static unsigned long used; + struct fast_timer *t, *nextt; - if (!bigbuf && !(bigbuf = vmalloc(BIG_BUF_SIZE))) - { - used = 0; - if (buf) - buf[0] = '\0'; - return 0; - } + do_gettimeofday_fast(&tv); - if (!offset || !used) - { - do_gettimeofday_fast(&tv); - - used = 0; - used += sprintf(bigbuf + used, "Fast timers added: %i\n", - fast_timers_added); - used += sprintf(bigbuf + used, "Fast timers started: %i\n", - fast_timers_started); - used += sprintf(bigbuf + used, "Fast timer interrupts: %i\n", - fast_timer_ints); - used += sprintf(bigbuf + used, "Fast timers expired: %i\n", - fast_timers_expired); - used += sprintf(bigbuf + used, "Fast timers deleted: %i\n", - fast_timers_deleted); - used += sprintf(bigbuf + used, "Fast timer running: %s\n", - fast_timer_running ? "yes" : "no"); - used += sprintf(bigbuf + used, "Current time: %lu.%06lu\n", - (unsigned long)tv.tv_jiff, - (unsigned long)tv.tv_usec); + seq_printf(m, "Fast timers added: %i\n", fast_timers_added); + seq_printf(m, "Fast timers started: %i\n", fast_timers_started); + seq_printf(m, "Fast timer interrupts: %i\n", fast_timer_ints); + seq_printf(m, "Fast timers expired: %i\n", fast_timers_expired); + seq_printf(m, "Fast timers deleted: %i\n", fast_timers_deleted); + seq_printf(m, "Fast timer running: %s\n", + fast_timer_running ? "yes" : "no"); + seq_printf(m, "Current time: %lu.%06lu\n", + (unsigned long)tv.tv_jiff, + (unsigned long)tv.tv_usec); #ifdef FAST_TIMER_SANITY_CHECKS - used += sprintf(bigbuf + used, "Sanity failed: %i\n", - sanity_failed); + seq_printf(m, "Sanity failed: %i\n", sanity_failed); #endif - used += sprintf(bigbuf + used, "\n"); + seq_putc(m, '\n'); #ifdef DEBUG_LOG_INCLUDED - { - int end_i = debug_log_cnt; - i = 0; + { + int end_i = debug_log_cnt; + i = 0; - if (debug_log_cnt_wrapped) - { - i = debug_log_cnt; - } + if (debug_log_cnt_wrapped) + i = debug_log_cnt; - while ((i != end_i || (debug_log_cnt_wrapped && !used)) && - used+100 < BIG_BUF_SIZE) - { - used += sprintf(bigbuf + used, debug_log_string[i], - debug_log_value[i]); - i = (i+1) % DEBUG_LOG_MAX; - } - } - used += sprintf(bigbuf + used, "\n"); + while (i != end_i || debug_log_cnt_wrapped) { + if (seq_printf(m, debug_log_string[i], debug_log_value[i]) < 0) + return 0; + i = (i+1) % DEBUG_LOG_MAX; + } + } + seq_putc(m, '\n'); #endif - num_to_show = (fast_timers_started < NUM_TIMER_STATS ? fast_timers_started: - NUM_TIMER_STATS); - used += sprintf(bigbuf + used, "Timers started: %i\n", fast_timers_started); - for (i = 0; i < num_to_show && (used+100 < BIG_BUF_SIZE) ; i++) - { - int cur = (fast_timers_started - i - 1) % NUM_TIMER_STATS; + num_to_show = (fast_timers_started < NUM_TIMER_STATS ? fast_timers_started: + NUM_TIMER_STATS); + seq_printf(m, "Timers started: %i\n", fast_timers_started); + for (i = 0; i < num_to_show; i++) { + int cur = (fast_timers_started - i - 1) % NUM_TIMER_STATS; #if 1 //ndef FAST_TIMER_LOG - used += sprintf(bigbuf + used, "div: %i freq: %i delay: %i" - "\n", - timer_div_settings[cur], - timer_freq_settings[cur], - timer_delay_settings[cur] - ); + seq_printf(m, "div: %i freq: %i delay: %i" + "\n", + timer_div_settings[cur], + timer_freq_settings[cur], + timer_delay_settings[cur]); #endif #ifdef FAST_TIMER_LOG - t = &timer_started_log[cur]; - used += sprintf(bigbuf + used, "%-14s s: %6lu.%06lu e: %6lu.%06lu " - "d: %6li us data: 0x%08lX" - "\n", - t->name, - (unsigned long)t->tv_set.tv_jiff, - (unsigned long)t->tv_set.tv_usec, - (unsigned long)t->tv_expires.tv_jiff, - (unsigned long)t->tv_expires.tv_usec, - t->delay_us, - t->data - ); + t = &timer_started_log[cur]; + if (seq_printf(m, "%-14s s: %6lu.%06lu e: %6lu.%06lu " + "d: %6li us data: 0x%08lX" + "\n", + t->name, + (unsigned long)t->tv_set.tv_jiff, + (unsigned long)t->tv_set.tv_usec, + (unsigned long)t->tv_expires.tv_jiff, + (unsigned long)t->tv_expires.tv_usec, + t->delay_us, + t->data) < 0) + return 0; #endif - } - used += sprintf(bigbuf + used, "\n"); + } + seq_putc(m, '\n'); #ifdef FAST_TIMER_LOG - num_to_show = (fast_timers_added < NUM_TIMER_STATS ? fast_timers_added: - NUM_TIMER_STATS); - used += sprintf(bigbuf + used, "Timers added: %i\n", fast_timers_added); - for (i = 0; i < num_to_show && (used+100 < BIG_BUF_SIZE); i++) - { - t = &timer_added_log[(fast_timers_added - i - 1) % NUM_TIMER_STATS]; - used += sprintf(bigbuf + used, "%-14s s: %6lu.%06lu e: %6lu.%06lu " - "d: %6li us data: 0x%08lX" - "\n", - t->name, - (unsigned long)t->tv_set.tv_jiff, - (unsigned long)t->tv_set.tv_usec, - (unsigned long)t->tv_expires.tv_jiff, - (unsigned long)t->tv_expires.tv_usec, - t->delay_us, - t->data - ); - } - used += sprintf(bigbuf + used, "\n"); + num_to_show = (fast_timers_added < NUM_TIMER_STATS ? fast_timers_added: + NUM_TIMER_STATS); + seq_printf(m, "Timers added: %i\n", fast_timers_added); + for (i = 0; i < num_to_show; i++) { + t = &timer_added_log[(fast_timers_added - i - 1) % NUM_TIMER_STATS]; + if (seq_printf(m, "%-14s s: %6lu.%06lu e: %6lu.%06lu " + "d: %6li us data: 0x%08lX" + "\n", + t->name, + (unsigned long)t->tv_set.tv_jiff, + (unsigned long)t->tv_set.tv_usec, + (unsigned long)t->tv_expires.tv_jiff, + (unsigned long)t->tv_expires.tv_usec, + t->delay_us, + t->data) < 0) + return 0; + } + seq_putc(m, '\n'); - num_to_show = (fast_timers_expired < NUM_TIMER_STATS ? fast_timers_expired: - NUM_TIMER_STATS); - used += sprintf(bigbuf + used, "Timers expired: %i\n", fast_timers_expired); - for (i = 0; i < num_to_show && (used+100 < BIG_BUF_SIZE); i++) - { - t = &timer_expired_log[(fast_timers_expired - i - 1) % NUM_TIMER_STATS]; - used += sprintf(bigbuf + used, "%-14s s: %6lu.%06lu e: %6lu.%06lu " - "d: %6li us data: 0x%08lX" - "\n", - t->name, - (unsigned long)t->tv_set.tv_jiff, - (unsigned long)t->tv_set.tv_usec, - (unsigned long)t->tv_expires.tv_jiff, - (unsigned long)t->tv_expires.tv_usec, - t->delay_us, - t->data - ); - } - used += sprintf(bigbuf + used, "\n"); + num_to_show = (fast_timers_expired < NUM_TIMER_STATS ? fast_timers_expired: + NUM_TIMER_STATS); + seq_printf(m, "Timers expired: %i\n", fast_timers_expired); + for (i = 0; i < num_to_show; i++) { + t = &timer_expired_log[(fast_timers_expired - i - 1) % NUM_TIMER_STATS]; + if (seq_printf(m, "%-14s s: %6lu.%06lu e: %6lu.%06lu " + "d: %6li us data: 0x%08lX" + "\n", + t->name, + (unsigned long)t->tv_set.tv_jiff, + (unsigned long)t->tv_set.tv_usec, + (unsigned long)t->tv_expires.tv_jiff, + (unsigned long)t->tv_expires.tv_usec, + t->delay_us, + t->data) < 0) + return 0; + } + seq_putc(m, '\n'); #endif - used += sprintf(bigbuf + used, "Active timers:\n"); - local_irq_save(flags); - t = fast_timer_list; - while (t != NULL && (used+100 < BIG_BUF_SIZE)) - { - nextt = t->next; - local_irq_restore(flags); - used += sprintf(bigbuf + used, "%-14s s: %6lu.%06lu e: %6lu.%06lu " - "d: %6li us data: 0x%08lX" -/* " func: 0x%08lX" */ - "\n", - t->name, - (unsigned long)t->tv_set.tv_jiff, - (unsigned long)t->tv_set.tv_usec, - (unsigned long)t->tv_expires.tv_jiff, - (unsigned long)t->tv_expires.tv_usec, - t->delay_us, - t->data -/* , t->function */ - ); + seq_puts(m, "Active timers:\n"); local_irq_save(flags); - if (t->next != nextt) - { - printk(KERN_WARNING "timer removed!\n"); - } - t = nextt; - } - local_irq_restore(flags); - } + t = fast_timer_list; + while (t) { + nextt = t->next; + local_irq_restore(flags); + if (seq_printf(m, "%-14s s: %6lu.%06lu e: %6lu.%06lu " + "d: %6li us data: 0x%08lX" +/* " func: 0x%08lX" */ + "\n", + t->name, + (unsigned long)t->tv_set.tv_jiff, + (unsigned long)t->tv_set.tv_usec, + (unsigned long)t->tv_expires.tv_jiff, + (unsigned long)t->tv_expires.tv_usec, + t->delay_us, + t->data +/* , t->function */ + ) < 0) + return 0; + local_irq_save(flags); + if (t->next != nextt) + printk(KERN_WARNING "timer removed!\n"); + t = nextt; + } + local_irq_restore(flags); - if (used - offset < len) - { - len = used - offset; - } - - memcpy(buf, bigbuf + offset, len); - *start = buf; - *eof = 1; - - return len; + return 0; } + +static int proc_fasttimer_open(struct inode *inode, struct file *file) +{ + return single_open_size(file, proc_fasttimer_show, PDE_DATA(inode), BIG_BUF_SIZE); +} + +static const struct file_operations proc_fasttimer_fops = { + .open = proc_fasttimer_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; #endif /* PROC_FS */ #ifdef FAST_TIMER_TEST @@ -856,7 +823,7 @@ int fast_timer_init(void) } #endif #ifdef CONFIG_PROC_FS - create_proc_read_entry("fasttimer", 0, NULL, proc_fasttimer_read, NULL); + proc_create("fasttimer", 0, NULL, &proc_fasttimer_fops); #endif /* PROC_FS */ if(request_irq(TIMER1_IRQ_NBR, timer1_handler, 0, "fast timer int", NULL)) diff --git a/arch/cris/arch-v32/kernel/fasttimer.c b/arch/cris/arch-v32/kernel/fasttimer.c index dd1c998070e9..e43dd70acd96 100644 --- a/arch/cris/arch-v32/kernel/fasttimer.c +++ b/arch/cris/arch-v32/kernel/fasttimer.c @@ -23,6 +23,7 @@ #include #include #include +#include /* * timer0 is running at 100MHz and generating jiffies timer ticks @@ -463,194 +464,161 @@ void schedule_usleep(unsigned long us) } #ifdef CONFIG_PROC_FS -static int proc_fasttimer_read(char *buf, char **start, off_t offset, int len - ,int *eof, void *data_unused); -#endif /* CONFIG_PROC_FS */ - -#ifdef CONFIG_PROC_FS - /* This value is very much based on testing */ #define BIG_BUF_SIZE (500 + NUM_TIMER_STATS * 300) -static int proc_fasttimer_read(char *buf, char **start, off_t offset, int len - ,int *eof, void *data_unused) +static int proc_fasttimer_show(struct seq_file *m, void *v) { - unsigned long flags; - int i = 0; - int num_to_show; + unsigned long flags; + int i = 0; + int num_to_show; struct fasttime_t tv; - struct fast_timer *t, *nextt; - static char *bigbuf = NULL; - static unsigned long used; + struct fast_timer *t, *nextt; - if (!bigbuf) { - bigbuf = vmalloc(BIG_BUF_SIZE); - if (!bigbuf) { - used = 0; - if (buf) - buf[0] = '\0'; - return 0; - } - } + do_gettimeofday_fast(&tv); - if (!offset || !used) { - do_gettimeofday_fast(&tv); - - used = 0; - used += sprintf(bigbuf + used, "Fast timers added: %i\n", - fast_timers_added); - used += sprintf(bigbuf + used, "Fast timers started: %i\n", - fast_timers_started); - used += sprintf(bigbuf + used, "Fast timer interrupts: %i\n", - fast_timer_ints); - used += sprintf(bigbuf + used, "Fast timers expired: %i\n", - fast_timers_expired); - used += sprintf(bigbuf + used, "Fast timers deleted: %i\n", - fast_timers_deleted); - used += sprintf(bigbuf + used, "Fast timer running: %s\n", - fast_timer_running ? "yes" : "no"); - used += sprintf(bigbuf + used, "Current time: %lu.%06lu\n", - (unsigned long)tv.tv_jiff, - (unsigned long)tv.tv_usec); + seq_printf(m, "Fast timers added: %i\n", fast_timers_added); + seq_printf(m, "Fast timers started: %i\n", fast_timers_started); + seq_printf(m, "Fast timer interrupts: %i\n", fast_timer_ints); + seq_printf(m, "Fast timers expired: %i\n", fast_timers_expired); + seq_printf(m, "Fast timers deleted: %i\n", fast_timers_deleted); + seq_printf(m, "Fast timer running: %s\n", + fast_timer_running ? "yes" : "no"); + seq_printf(m, "Current time: %lu.%06lu\n", + (unsigned long)tv.tv_jiff, + (unsigned long)tv.tv_usec); #ifdef FAST_TIMER_SANITY_CHECKS - used += sprintf(bigbuf + used, "Sanity failed: %i\n", - sanity_failed); + seq_printf(m, "Sanity failed: %i\n", sanity_failed); #endif - used += sprintf(bigbuf + used, "\n"); + seq_putc(m, '\n'); #ifdef DEBUG_LOG_INCLUDED - { - int end_i = debug_log_cnt; - i = 0; + { + int end_i = debug_log_cnt; + i = 0; - if (debug_log_cnt_wrapped) - i = debug_log_cnt; + if (debug_log_cnt_wrapped) + i = debug_log_cnt; - while ((i != end_i || (debug_log_cnt_wrapped && !used)) && - used+100 < BIG_BUF_SIZE) - { - used += sprintf(bigbuf + used, debug_log_string[i], - debug_log_value[i]); - i = (i+1) % DEBUG_LOG_MAX; - } - } - used += sprintf(bigbuf + used, "\n"); + while ((i != end_i || debug_log_cnt_wrapped)) { + if (seq_printf(m, debug_log_string[i], debug_log_value[i]) < 0) + return 0; + i = (i+1) % DEBUG_LOG_MAX; + } + } + seq_putc(m, '\n'); #endif - num_to_show = (fast_timers_started < NUM_TIMER_STATS ? fast_timers_started: - NUM_TIMER_STATS); - used += sprintf(bigbuf + used, "Timers started: %i\n", fast_timers_started); - for (i = 0; i < num_to_show && (used+100 < BIG_BUF_SIZE) ; i++) - { - int cur = (fast_timers_started - i - 1) % NUM_TIMER_STATS; + num_to_show = (fast_timers_started < NUM_TIMER_STATS ? fast_timers_started: + NUM_TIMER_STATS); + seq_printf(m, "Timers started: %i\n", fast_timers_started); + for (i = 0; i < num_to_show; i++) { + int cur = (fast_timers_started - i - 1) % NUM_TIMER_STATS; #if 1 //ndef FAST_TIMER_LOG - used += sprintf(bigbuf + used, "div: %i delay: %i" - "\n", - timer_div_settings[cur], - timer_delay_settings[cur] - ); + seq_printf(m, "div: %i delay: %i" + "\n", + timer_div_settings[cur], + timer_delay_settings[cur]); #endif #ifdef FAST_TIMER_LOG - t = &timer_started_log[cur]; - used += sprintf(bigbuf + used, "%-14s s: %6lu.%06lu e: %6lu.%06lu " - "d: %6li us data: 0x%08lX" - "\n", - t->name, - (unsigned long)t->tv_set.tv_jiff, - (unsigned long)t->tv_set.tv_usec, - (unsigned long)t->tv_expires.tv_jiff, - (unsigned long)t->tv_expires.tv_usec, - t->delay_us, - t->data - ); + t = &timer_started_log[cur]; + if (seq_printf(m, "%-14s s: %6lu.%06lu e: %6lu.%06lu " + "d: %6li us data: 0x%08lX" + "\n", + t->name, + (unsigned long)t->tv_set.tv_jiff, + (unsigned long)t->tv_set.tv_usec, + (unsigned long)t->tv_expires.tv_jiff, + (unsigned long)t->tv_expires.tv_usec, + t->delay_us, + t->data) < 0) + return 0; #endif - } - used += sprintf(bigbuf + used, "\n"); + } + seq_putc(m, '\n'); #ifdef FAST_TIMER_LOG - num_to_show = (fast_timers_added < NUM_TIMER_STATS ? fast_timers_added: - NUM_TIMER_STATS); - used += sprintf(bigbuf + used, "Timers added: %i\n", fast_timers_added); - for (i = 0; i < num_to_show && (used+100 < BIG_BUF_SIZE); i++) - { - t = &timer_added_log[(fast_timers_added - i - 1) % NUM_TIMER_STATS]; - used += sprintf(bigbuf + used, "%-14s s: %6lu.%06lu e: %6lu.%06lu " - "d: %6li us data: 0x%08lX" - "\n", - t->name, - (unsigned long)t->tv_set.tv_jiff, - (unsigned long)t->tv_set.tv_usec, - (unsigned long)t->tv_expires.tv_jiff, - (unsigned long)t->tv_expires.tv_usec, - t->delay_us, - t->data - ); - } - used += sprintf(bigbuf + used, "\n"); + num_to_show = (fast_timers_added < NUM_TIMER_STATS ? fast_timers_added: + NUM_TIMER_STATS); + seq_printf(m, "Timers added: %i\n", fast_timers_added); + for (i = 0; i < num_to_show; i++) { + t = &timer_added_log[(fast_timers_added - i - 1) % NUM_TIMER_STATS]; + if (seq_printf(m, "%-14s s: %6lu.%06lu e: %6lu.%06lu " + "d: %6li us data: 0x%08lX" + "\n", + t->name, + (unsigned long)t->tv_set.tv_jiff, + (unsigned long)t->tv_set.tv_usec, + (unsigned long)t->tv_expires.tv_jiff, + (unsigned long)t->tv_expires.tv_usec, + t->delay_us, + t->data) < 0) + return 0; + } + seq_putc(m, '\n'); - num_to_show = (fast_timers_expired < NUM_TIMER_STATS ? fast_timers_expired: - NUM_TIMER_STATS); - used += sprintf(bigbuf + used, "Timers expired: %i\n", fast_timers_expired); - for (i = 0; i < num_to_show && (used+100 < BIG_BUF_SIZE); i++) - { - t = &timer_expired_log[(fast_timers_expired - i - 1) % NUM_TIMER_STATS]; - used += sprintf(bigbuf + used, "%-14s s: %6lu.%06lu e: %6lu.%06lu " - "d: %6li us data: 0x%08lX" - "\n", - t->name, - (unsigned long)t->tv_set.tv_jiff, - (unsigned long)t->tv_set.tv_usec, - (unsigned long)t->tv_expires.tv_jiff, - (unsigned long)t->tv_expires.tv_usec, - t->delay_us, - t->data - ); - } - used += sprintf(bigbuf + used, "\n"); + num_to_show = (fast_timers_expired < NUM_TIMER_STATS ? fast_timers_expired: + NUM_TIMER_STATS); + seq_printf(m, "Timers expired: %i\n", fast_timers_expired); + for (i = 0; i < num_to_show; i++){ + t = &timer_expired_log[(fast_timers_expired - i - 1) % NUM_TIMER_STATS]; + if (seq_printf(m, "%-14s s: %6lu.%06lu e: %6lu.%06lu " + "d: %6li us data: 0x%08lX" + "\n", + t->name, + (unsigned long)t->tv_set.tv_jiff, + (unsigned long)t->tv_set.tv_usec, + (unsigned long)t->tv_expires.tv_jiff, + (unsigned long)t->tv_expires.tv_usec, + t->delay_us, + t->data) < 0) + return 0; + } + seq_putc(m, '\n'); #endif - used += sprintf(bigbuf + used, "Active timers:\n"); - local_irq_save(flags); - t = fast_timer_list; - while (t != NULL && (used+100 < BIG_BUF_SIZE)) - { - nextt = t->next; - local_irq_restore(flags); - used += sprintf(bigbuf + used, "%-14s s: %6lu.%06lu e: %6lu.%06lu " - "d: %6li us data: 0x%08lX" + seq_puts(m, "Active timers:\n"); + local_irq_save(flags); + t = fast_timer_list; + while (t != NULL){ + nextt = t->next; + local_irq_restore(flags); + if (seq_printf(m, "%-14s s: %6lu.%06lu e: %6lu.%06lu " + "d: %6li us data: 0x%08lX" /* " func: 0x%08lX" */ - "\n", - t->name, - (unsigned long)t->tv_set.tv_jiff, - (unsigned long)t->tv_set.tv_usec, - (unsigned long)t->tv_expires.tv_jiff, - (unsigned long)t->tv_expires.tv_usec, - t->delay_us, - t->data + "\n", + t->name, + (unsigned long)t->tv_set.tv_jiff, + (unsigned long)t->tv_set.tv_usec, + (unsigned long)t->tv_expires.tv_jiff, + (unsigned long)t->tv_expires.tv_usec, + t->delay_us, + t->data /* , t->function */ - ); - local_irq_save(flags); - if (t->next != nextt) - { - printk("timer removed!\n"); - } - t = nextt; - } - local_irq_restore(flags); - } - - if (used - offset < len) - { - len = used - offset; - } - - memcpy(buf, bigbuf + offset, len); - *start = buf; - *eof = 1; - - return len; + ) < 0) + return 0; + local_irq_save(flags); + if (t->next != nextt) + printk("timer removed!\n"); + t = nextt; + } + local_irq_restore(flags); + return 0; } + +static int proc_fasttimer_open(struct inode *inode, struct file *file) +{ + return single_open_size(file, proc_fasttimer_show, PDE_DATA(inode), BIG_BUF_SIZE); +} + +static const struct file_operations proc_fasttimer_fops = { + .open = proc_fasttimer_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + #endif /* PROC_FS */ #ifdef FAST_TIMER_TEST @@ -815,7 +783,7 @@ int fast_timer_init(void) printk("fast_timer_init()\n"); #ifdef CONFIG_PROC_FS - create_proc_read_entry("fasttimer", 0, NULL, proc_fasttimer_read, NULL); + proc_create("fasttimer", 0, NULL, &proc_fasttimer_fops); #endif /* PROC_FS */ if (request_irq(TIMER0_INTR_VECT, timer_trig_interrupt, IRQF_SHARED | IRQF_DISABLED, From f9368c18e9a99d86c509ac113363e9d295e0bf74 Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Thu, 11 Apr 2013 11:03:41 -0700 Subject: [PATCH 175/204] ARM: OMAP1: Replace PM debug create_proc_read_entry() with debugfs There's no need to keep this entry in proc, it is PM related debug only entry. Let's move it into debugfs. Based on an earlier patch David Howells to use seq_printf and to update to use create_proc_read_entry(). Signed-off-by: Tony Lindgren Signed-off-by: David Howells Signed-off-by: Al Viro --- arch/arm/mach-omap1/pm.c | 78 +++++++++++++++++++--------------------- 1 file changed, 37 insertions(+), 41 deletions(-) diff --git a/arch/arm/mach-omap1/pm.c b/arch/arm/mach-omap1/pm.c index 7a7690ab6cb8..ff72d297a172 100644 --- a/arch/arm/mach-omap1/pm.c +++ b/arch/arm/mach-omap1/pm.c @@ -37,7 +37,8 @@ #include #include -#include +#include +#include #include #include #include @@ -422,23 +423,12 @@ void omap1_pm_suspend(void) omap_rev()); } -#if defined(DEBUG) && defined(CONFIG_PROC_FS) -static int g_read_completed; - +#ifdef CONFIG_DEBUG_FS /* * Read system PM registers for debugging */ -static int omap_pm_read_proc( - char *page_buffer, - char **my_first_byte, - off_t virtual_start, - int length, - int *eof, - void *data) +static int omap_pm_debug_show(struct seq_file *m, void *v) { - int my_buffer_offset = 0; - char * const my_base = page_buffer; - ARM_SAVE(ARM_CKCTL); ARM_SAVE(ARM_IDLECT1); ARM_SAVE(ARM_IDLECT2); @@ -479,10 +469,7 @@ static int omap_pm_read_proc( MPUI1610_SAVE(EMIFS_CONFIG); } - if (virtual_start == 0) { - g_read_completed = 0; - - my_buffer_offset += sprintf(my_base + my_buffer_offset, + seq_printf(m, "ARM_CKCTL_REG: 0x%-8x \n" "ARM_IDLECT1_REG: 0x%-8x \n" "ARM_IDLECT2_REG: 0x%-8x \n" @@ -512,8 +499,8 @@ static int omap_pm_read_proc( ULPD_SHOW(ULPD_STATUS_REQ), ULPD_SHOW(ULPD_POWER_CTRL)); - if (cpu_is_omap7xx()) { - my_buffer_offset += sprintf(my_base + my_buffer_offset, + if (cpu_is_omap7xx()) { + seq_printf(m, "MPUI7XX_CTRL_REG 0x%-8x \n" "MPUI7XX_DSP_STATUS_REG: 0x%-8x \n" "MPUI7XX_DSP_BOOT_CONFIG_REG: 0x%-8x \n" @@ -526,8 +513,8 @@ static int omap_pm_read_proc( MPUI7XX_SHOW(MPUI_DSP_API_CONFIG), MPUI7XX_SHOW(EMIFF_SDRAM_CONFIG), MPUI7XX_SHOW(EMIFS_CONFIG)); - } else if (cpu_is_omap15xx()) { - my_buffer_offset += sprintf(my_base + my_buffer_offset, + } else if (cpu_is_omap15xx()) { + seq_printf(m, "MPUI1510_CTRL_REG 0x%-8x \n" "MPUI1510_DSP_STATUS_REG: 0x%-8x \n" "MPUI1510_DSP_BOOT_CONFIG_REG: 0x%-8x \n" @@ -540,8 +527,8 @@ static int omap_pm_read_proc( MPUI1510_SHOW(MPUI_DSP_API_CONFIG), MPUI1510_SHOW(EMIFF_SDRAM_CONFIG), MPUI1510_SHOW(EMIFS_CONFIG)); - } else if (cpu_is_omap16xx()) { - my_buffer_offset += sprintf(my_base + my_buffer_offset, + } else if (cpu_is_omap16xx()) { + seq_printf(m, "MPUI1610_CTRL_REG 0x%-8x \n" "MPUI1610_DSP_STATUS_REG: 0x%-8x \n" "MPUI1610_DSP_BOOT_CONFIG_REG: 0x%-8x \n" @@ -554,28 +541,37 @@ static int omap_pm_read_proc( MPUI1610_SHOW(MPUI_DSP_API_CONFIG), MPUI1610_SHOW(EMIFF_SDRAM_CONFIG), MPUI1610_SHOW(EMIFS_CONFIG)); - } - - g_read_completed++; - } else if (g_read_completed >= 1) { - *eof = 1; - return 0; } - g_read_completed++; - *my_first_byte = page_buffer; - return my_buffer_offset; + return 0; } -static void omap_pm_init_proc(void) +static int omap_pm_debug_open(struct inode *inode, struct file *file) { - /* XXX Appears to leak memory */ - create_proc_read_entry("driver/omap_pm", - S_IWUSR | S_IRUGO, NULL, - omap_pm_read_proc, NULL); + return single_open(file, omap_pm_debug_show, + &inode->i_private); } -#endif /* DEBUG && CONFIG_PROC_FS */ +static const struct file_operations omap_pm_debug_fops = { + .open = omap_pm_debug_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + +static void omap_pm_init_debugfs(void) +{ + struct dentry *d; + + d = debugfs_create_dir("pm_debug", NULL); + if (!d) + return; + + (void) debugfs_create_file("omap_pm", S_IWUSR | S_IRUGO, + d, NULL, &omap_pm_debug_fops); +} + +#endif /* CONFIG_DEBUG_FS */ /* * omap_pm_prepare - Do preliminary suspend work. @@ -701,8 +697,8 @@ static int __init omap_pm_init(void) suspend_set_ops(&omap_pm_ops); -#if defined(DEBUG) && defined(CONFIG_PROC_FS) - omap_pm_init_proc(); +#ifdef CONFIG_DEBUG_FS + omap_pm_init_debugfs(); #endif #ifdef CONFIG_OMAP_32K_TIMER From 526c59784c09fb794a5f0181429525bc473453c9 Mon Sep 17 00:00:00 2001 From: David Howells Date: Thu, 11 Apr 2013 03:05:01 +0100 Subject: [PATCH 176/204] arm: Don't use create_proc_read_entry() Don't use create_proc_read_entry() as that is deprecated, but rather use proc_create_data() and seq_file instead. Signed-off-by: David Howells cc: Russell King cc: Kevin Hilman cc: Tony Lindgren cc: linux-arm-kernel@lists.infradead.org cc: linux-omap@vger.kernel.org Signed-off-by: Al Viro --- arch/arm/kernel/swp_emulate.c | 44 ++++++++++++++++------------------- 1 file changed, 20 insertions(+), 24 deletions(-) diff --git a/arch/arm/kernel/swp_emulate.c b/arch/arm/kernel/swp_emulate.c index 0bba47ada5bd..087fc321e9e5 100644 --- a/arch/arm/kernel/swp_emulate.c +++ b/arch/arm/kernel/swp_emulate.c @@ -21,6 +21,7 @@ #include #include #include +#include #include #include #include @@ -79,27 +80,27 @@ static unsigned long abtcounter; static pid_t previous_pid; #ifdef CONFIG_PROC_FS -static int proc_read_status(char *page, char **start, off_t off, int count, - int *eof, void *data) +static int proc_status_show(struct seq_file *m, void *v) { - char *p = page; - int len; - - p += sprintf(p, "Emulated SWP:\t\t%lu\n", swpcounter); - p += sprintf(p, "Emulated SWPB:\t\t%lu\n", swpbcounter); - p += sprintf(p, "Aborted SWP{B}:\t\t%lu\n", abtcounter); + seq_printf(m, "Emulated SWP:\t\t%lu\n", swpcounter); + seq_printf(m, "Emulated SWPB:\t\t%lu\n", swpbcounter); + seq_printf(m, "Aborted SWP{B}:\t\t%lu\n", abtcounter); if (previous_pid != 0) - p += sprintf(p, "Last process:\t\t%d\n", previous_pid); - - len = (p - page) - off; - if (len < 0) - len = 0; - - *eof = (len <= count) ? 1 : 0; - *start = page + off; - - return len; + seq_printf(m, "Last process:\t\t%d\n", previous_pid); + return 0; } + +static int proc_status_open(struct inode *inode, struct file *file) +{ + return single_open(file, proc_status_show, PDE_DATA(inode)); +} + +static const struct file_operations proc_status_fops = { + .open = proc_status_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; #endif /* @@ -266,12 +267,7 @@ static struct undef_hook swp_hook = { static int __init swp_emulation_init(void) { #ifdef CONFIG_PROC_FS - struct proc_dir_entry *res; - - res = create_proc_read_entry("cpu/swp_emulation", S_IRUGO, NULL, - proc_read_status, NULL); - - if (!res) + if (!proc_create("cpu/swp_emulation", S_IRUGO, NULL, &proc_status_fops)) return -ENOMEM; #endif /* CONFIG_PROC_FS */ From 3cb5bf1bf947d325fcf6e9458952b51cfd7e6677 Mon Sep 17 00:00:00 2001 From: David Howells Date: Thu, 11 Apr 2013 03:20:50 +0100 Subject: [PATCH 177/204] proc: Delete create_proc_read_entry() Delete create_proc_read_entry() as it no longer has any users. Also delete read_proc_t, write_proc_t, the read_proc member of the proc_dir_entry struct and the support functions that use them. This saves a pointer for every PDE allocated. Signed-off-by: David Howells Signed-off-by: Al Viro --- fs/proc/generic.c | 168 +--------------------------------------- fs/proc/inode.c | 35 --------- fs/proc/internal.h | 2 - include/linux/proc_fs.h | 16 ---- 4 files changed, 1 insertion(+), 220 deletions(-) diff --git a/fs/proc/generic.c b/fs/proc/generic.c index bec58323629c..1c07cadeb8db 100644 --- a/fs/proc/generic.c +++ b/fs/proc/generic.c @@ -36,141 +36,6 @@ static int proc_match(unsigned int len, const char *name, struct proc_dir_entry return !memcmp(name, de->name, len); } -/* buffer size is one page but our output routines use some slack for overruns */ -#define PROC_BLOCK_SIZE (PAGE_SIZE - 1024) - -ssize_t -__proc_file_read(struct file *file, char __user *buf, size_t nbytes, - loff_t *ppos) -{ - struct inode * inode = file_inode(file); - char *page; - ssize_t retval=0; - int eof=0; - ssize_t n, count; - char *start; - struct proc_dir_entry * dp; - unsigned long long pos; - - /* - * Gaah, please just use "seq_file" instead. The legacy /proc - * interfaces cut loff_t down to off_t for reads, and ignore - * the offset entirely for writes.. - */ - pos = *ppos; - if (pos > MAX_NON_LFS) - return 0; - if (nbytes > MAX_NON_LFS - pos) - nbytes = MAX_NON_LFS - pos; - - dp = PDE(inode); - if (!(page = (char*) __get_free_page(GFP_TEMPORARY))) - return -ENOMEM; - - while ((nbytes > 0) && !eof) { - count = min_t(size_t, PROC_BLOCK_SIZE, nbytes); - - start = NULL; - if (!dp->read_proc) - break; - - /* How to be a proc read function - * ------------------------------ - * Prototype: - * int f(char *buffer, char **start, off_t offset, - * int count, int *peof, void *dat) - * - * Assume that the buffer is "count" bytes in size. - * - * If you know you have supplied all the data you have, set - * *peof. - * - * You have three ways to return data: - * - * 0) Leave *start = NULL. (This is the default.) Put the - * data of the requested offset at that offset within the - * buffer. Return the number (n) of bytes there are from - * the beginning of the buffer up to the last byte of data. - * If the number of supplied bytes (= n - offset) is greater - * than zero and you didn't signal eof and the reader is - * prepared to take more data you will be called again with - * the requested offset advanced by the number of bytes - * absorbed. This interface is useful for files no larger - * than the buffer. - * - * 1) Set *start = an unsigned long value less than the buffer - * address but greater than zero. Put the data of the - * requested offset at the beginning of the buffer. Return - * the number of bytes of data placed there. If this number - * is greater than zero and you didn't signal eof and the - * reader is prepared to take more data you will be called - * again with the requested offset advanced by *start. This - * interface is useful when you have a large file consisting - * of a series of blocks which you want to count and return - * as wholes. - * (Hack by Paul.Russell@rustcorp.com.au) - * - * 2) Set *start = an address within the buffer. Put the data - * of the requested offset at *start. Return the number of - * bytes of data placed there. If this number is greater - * than zero and you didn't signal eof and the reader is - * prepared to take more data you will be called again with - * the requested offset advanced by the number of bytes - * absorbed. - */ - n = dp->read_proc(page, &start, *ppos, count, &eof, dp->data); - - if (n == 0) /* end of file */ - break; - if (n < 0) { /* error */ - if (retval == 0) - retval = n; - break; - } - - if (start == NULL) { - if (n > PAGE_SIZE) /* Apparent buffer overflow */ - n = PAGE_SIZE; - n -= *ppos; - if (n <= 0) - break; - if (n > count) - n = count; - start = page + *ppos; - } else if (start < page) { - if (n > PAGE_SIZE) /* Apparent buffer overflow */ - n = PAGE_SIZE; - if (n > count) { - /* - * Don't reduce n because doing so might - * cut off part of a data block. - */ - pr_warn("proc_file_read: count exceeded\n"); - } - } else /* start >= page */ { - unsigned long startoff = (unsigned long)(start - page); - if (n > (PAGE_SIZE - startoff)) /* buffer overflow? */ - n = PAGE_SIZE - startoff; - if (n > count) - n = count; - } - - n -= copy_to_user(buf, start < page ? page : start, n); - if (n == 0) { - if (retval == 0) - retval = -EFAULT; - break; - } - - *ppos += start < page ? (unsigned long)start : n; - nbytes -= n; - buf += n; - retval += n; - } - free_page((unsigned long) page); - return retval; -} - static int proc_notify_change(struct dentry *dentry, struct iattr *iattr) { struct inode *inode = dentry->d_inode; @@ -476,8 +341,7 @@ static int proc_register(struct proc_dir_entry * dir, struct proc_dir_entry * dp } else if (S_ISLNK(dp->mode)) { dp->proc_iops = &proc_link_inode_operations; } else if (S_ISREG(dp->mode)) { - if (dp->proc_fops == NULL) - dp->proc_fops = &proc_file_operations; + BUG_ON(dp->proc_fops == NULL); dp->proc_iops = &proc_file_inode_operations; } else { WARN_ON(1); @@ -604,36 +468,6 @@ struct proc_dir_entry *proc_mkdir(const char *name, } EXPORT_SYMBOL(proc_mkdir); -struct proc_dir_entry *create_proc_read_entry( - const char *name, umode_t mode, struct proc_dir_entry *parent, - read_proc_t *read_proc, void *data) -{ - struct proc_dir_entry *ent; - - if ((mode & S_IFMT) == 0) - mode |= S_IFREG; - - if (!S_ISREG(mode)) { - WARN_ON(1); /* use proc_mkdir(), damnit */ - return NULL; - } - - if ((mode & S_IALLUGO) == 0) - mode |= S_IRUGO; - - ent = __proc_create(&parent, name, mode, 1); - if (ent) { - ent->read_proc = read_proc; - ent->data = data; - if (proc_register(parent, ent) < 0) { - kfree(ent); - ent = NULL; - } - } - return ent; -} -EXPORT_SYMBOL(create_proc_read_entry); - struct proc_dir_entry *proc_create_data(const char *name, umode_t mode, struct proc_dir_entry *parent, const struct file_operations *proc_fops, diff --git a/fs/proc/inode.c b/fs/proc/inode.c index 3b14a45870a9..d50224c70215 100644 --- a/fs/proc/inode.c +++ b/fs/proc/inode.c @@ -183,41 +183,6 @@ void proc_entry_rundown(struct proc_dir_entry *de) spin_unlock(&de->pde_unload_lock); } -/* ->read_proc() users - legacy crap */ -static ssize_t -proc_file_read(struct file *file, char __user *buf, size_t nbytes, - loff_t *ppos) -{ - struct proc_dir_entry *pde = PDE(file_inode(file)); - ssize_t rv = -EIO; - if (use_pde(pde)) { - rv = __proc_file_read(file, buf, nbytes, ppos); - unuse_pde(pde); - } - return rv; -} - -static loff_t -proc_file_lseek(struct file *file, loff_t offset, int orig) -{ - loff_t retval = -EINVAL; - switch (orig) { - case 1: - offset += file->f_pos; - /* fallthrough */ - case 0: - if (offset < 0 || offset > MAX_NON_LFS) - break; - file->f_pos = retval = offset; - } - return retval; -} - -const struct file_operations proc_file_operations = { - .llseek = proc_file_lseek, - .read = proc_file_read, -}; - static loff_t proc_reg_llseek(struct file *file, loff_t offset, int whence) { struct proc_dir_entry *pde = PDE(file_inode(file)); diff --git a/fs/proc/internal.h b/fs/proc/internal.h index 46a7e2a7b904..4b13417acfc4 100644 --- a/fs/proc/internal.h +++ b/fs/proc/internal.h @@ -157,8 +157,6 @@ struct pde_opener { struct completion *c; }; -ssize_t __proc_file_read(struct file *, char __user *, size_t, loff_t *); -extern const struct file_operations proc_file_operations; void proc_entry_rundown(struct proc_dir_entry *); extern spinlock_t proc_subdir_lock; diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h index 8175b49396a6..f5105f4e54f4 100644 --- a/include/linux/proc_fs.h +++ b/include/linux/proc_fs.h @@ -47,11 +47,6 @@ enum { * non-directory entries). */ -typedef int (read_proc_t)(char *page, char **start, off_t off, - int count, int *eof, void *data); -typedef int (write_proc_t)(struct file *file, const char __user *buffer, - unsigned long count, void *data); - struct proc_dir_entry { unsigned int low_ino; umode_t mode; @@ -63,7 +58,6 @@ struct proc_dir_entry { const struct file_operations *proc_fops; struct proc_dir_entry *next, *parent, *subdir; void *data; - read_proc_t *read_proc; atomic_t count; /* use count */ atomic_t in_use; /* number of callers into module in progress; */ /* negative -> it's going away RSN */ @@ -154,11 +148,6 @@ static inline struct proc_dir_entry *proc_create(const char *name, umode_t mode, { return proc_create_data(name, mode, parent, proc_fops, NULL); } - -extern __deprecated -struct proc_dir_entry *create_proc_read_entry(const char *name, - umode_t mode, struct proc_dir_entry *base, - read_proc_t *read_proc, void *data); extern struct proc_dir_entry *proc_net_mkdir(struct net *net, const char *name, struct proc_dir_entry *parent); @@ -192,11 +181,6 @@ static inline struct proc_dir_entry *proc_mkdir(const char *name, static inline struct proc_dir_entry *proc_mkdir_mode(const char *name, umode_t mode, struct proc_dir_entry *parent) { return NULL; } -static inline __deprecated -struct proc_dir_entry *create_proc_read_entry(const char *name, - umode_t mode, struct proc_dir_entry *base, - read_proc_t *read_proc, void * data) { return NULL; } - struct tty_driver; static inline void proc_tty_register_driver(struct tty_driver *driver) {}; static inline void proc_tty_unregister_driver(struct tty_driver *driver) {}; From 0d01ff2583086fd532181d2ee16112f5342eb78d Mon Sep 17 00:00:00 2001 From: David Howells Date: Thu, 11 Apr 2013 23:51:01 +0100 Subject: [PATCH 178/204] Include missing linux/slab.h inclusions Include missing linux/slab.h inclusions where the source file is currently expecting to get kmalloc() and co. through linux/proc_fs.h. Signed-off-by: David Howells Acked-by: Greg Kroah-Hartman cc: linux-s390@vger.kernel.org cc: sparclinux@vger.kernel.org cc: linux-efi@vger.kernel.org cc: linux-mtd@lists.infradead.org cc: devel@driverdev.osuosl.org cc: x86@kernel.org Signed-off-by: Al Viro --- arch/s390/kernel/os_info.c | 1 + arch/sparc/kernel/sun4d_irq.c | 1 + arch/x86/platform/efi/efi.c | 1 + arch/x86/platform/efi/efi_64.c | 1 + drivers/mtd/mtdcore.c | 1 + drivers/pps/clients/pps_parport.c | 1 + drivers/staging/dgrp/dgrp_dpa_ops.c | 1 + drivers/staging/dgrp/dgrp_mon_ops.c | 1 + drivers/staging/dgrp/dgrp_net_ops.c | 2 +- drivers/staging/dgrp/dgrp_specproc.c | 1 + fs/proc/self.c | 1 + 11 files changed, 11 insertions(+), 1 deletion(-) diff --git a/arch/s390/kernel/os_info.c b/arch/s390/kernel/os_info.c index 46480d81df00..d112fc66f993 100644 --- a/arch/s390/kernel/os_info.c +++ b/arch/s390/kernel/os_info.c @@ -10,6 +10,7 @@ #include #include +#include #include #include #include diff --git a/arch/sparc/kernel/sun4d_irq.c b/arch/sparc/kernel/sun4d_irq.c index e490ac9327c7..f8933be3ca8b 100644 --- a/arch/sparc/kernel/sun4d_irq.c +++ b/arch/sparc/kernel/sun4d_irq.c @@ -6,6 +6,7 @@ */ #include +#include #include #include diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c index 5f2ecaf3f9d8..55ea7dfb5b3c 100644 --- a/arch/x86/platform/efi/efi.c +++ b/arch/x86/platform/efi/efi.c @@ -34,6 +34,7 @@ #include #include #include +#include #include #include #include diff --git a/arch/x86/platform/efi/efi_64.c b/arch/x86/platform/efi/efi_64.c index 2b2003860615..39a0e7f1f0a3 100644 --- a/arch/x86/platform/efi/efi_64.c +++ b/arch/x86/platform/efi/efi_64.c @@ -27,6 +27,7 @@ #include #include #include +#include #include #include diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c index 61d5f56473e1..322ca65b0cc5 100644 --- a/drivers/mtd/mtdcore.c +++ b/drivers/mtd/mtdcore.c @@ -36,6 +36,7 @@ #include #include #include +#include #include #include diff --git a/drivers/pps/clients/pps_parport.c b/drivers/pps/clients/pps_parport.c index e1b4705ae3ec..38a8bbe74810 100644 --- a/drivers/pps/clients/pps_parport.c +++ b/drivers/pps/clients/pps_parport.c @@ -32,6 +32,7 @@ #include #include #include +#include #include #include diff --git a/drivers/staging/dgrp/dgrp_dpa_ops.c b/drivers/staging/dgrp/dgrp_dpa_ops.c index 43209c163a43..1fc13de4bdd6 100644 --- a/drivers/staging/dgrp/dgrp_dpa_ops.c +++ b/drivers/staging/dgrp/dgrp_dpa_ops.c @@ -40,6 +40,7 @@ #include #include #include +#include #include #include "dgrp_common.h" diff --git a/drivers/staging/dgrp/dgrp_mon_ops.c b/drivers/staging/dgrp/dgrp_mon_ops.c index 6edbbf069150..d18be4180e3b 100644 --- a/drivers/staging/dgrp/dgrp_mon_ops.c +++ b/drivers/staging/dgrp/dgrp_mon_ops.c @@ -37,6 +37,7 @@ #include #include #include +#include #include #include diff --git a/drivers/staging/dgrp/dgrp_net_ops.c b/drivers/staging/dgrp/dgrp_net_ops.c index 5448fc78bcad..9914f1c5bcd3 100644 --- a/drivers/staging/dgrp/dgrp_net_ops.c +++ b/drivers/staging/dgrp/dgrp_net_ops.c @@ -35,7 +35,7 @@ #include #include -#include +#include #include #include #include diff --git a/drivers/staging/dgrp/dgrp_specproc.c b/drivers/staging/dgrp/dgrp_specproc.c index b990b2686ba9..205d80ef4455 100644 --- a/drivers/staging/dgrp/dgrp_specproc.c +++ b/drivers/staging/dgrp/dgrp_specproc.c @@ -37,6 +37,7 @@ #include #include #include +#include #include #include #include diff --git a/fs/proc/self.c b/fs/proc/self.c index 21940d89977e..6b6a993b5c25 100644 --- a/fs/proc/self.c +++ b/fs/proc/self.c @@ -1,5 +1,6 @@ #include #include +#include #include #include "internal.h" From 303eb7e2c982fda734455f068633241db89d3175 Mon Sep 17 00:00:00 2001 From: David Howells Date: Thu, 11 Apr 2013 23:55:54 +0100 Subject: [PATCH 179/204] Include missing linux/magic.h inclusions Include missing linux/magic.h inclusions where the source file is currently expecting to get magic numbers through linux/proc_fs.h. Signed-off-by: David Howells cc: linux-efi@vger.kernel.org Signed-off-by: Al Viro --- drivers/firmware/efivars.c | 1 + fs/proc/inode.c | 1 + 2 files changed, 2 insertions(+) diff --git a/drivers/firmware/efivars.c b/drivers/firmware/efivars.c index 7acafb80fd4c..0f1026019c0f 100644 --- a/drivers/firmware/efivars.c +++ b/drivers/firmware/efivars.c @@ -80,6 +80,7 @@ #include #include #include +#include #include #include diff --git a/fs/proc/inode.c b/fs/proc/inode.c index d50224c70215..bd2f76427fec 100644 --- a/fs/proc/inode.c +++ b/fs/proc/inode.c @@ -22,6 +22,7 @@ #include #include #include +#include #include From 2f96b8c1d5d492c1d0457b253015330f844136f6 Mon Sep 17 00:00:00 2001 From: David Howells Date: Fri, 12 Apr 2013 00:10:25 +0100 Subject: [PATCH 180/204] proc: Split kcore bits from linux/procfs.h into linux/kcore.h Split kcore bits from linux/procfs.h into linux/kcore.h. Signed-off-by: David Howells Acked-by: KOSAKI Motohiro Acked-by: Ralf Baechle cc: linux-mips@linux-mips.org cc: sparclinux@vger.kernel.org cc: x86@kernel.org cc: linux-mm@kvack.org Signed-off-by: Al Viro --- arch/mips/mm/init.c | 1 + arch/score/mm/init.c | 2 +- arch/x86/mm/init_64.c | 1 + fs/proc/kcore.c | 1 + fs/proc/vmcore.c | 3 ++- include/linux/kcore.h | 38 ++++++++++++++++++++++++++++++++++++++ include/linux/proc_fs.h | 31 ------------------------------- 7 files changed, 44 insertions(+), 33 deletions(-) create mode 100644 include/linux/kcore.h diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c index 67929251286c..60547b7fe2ff 100644 --- a/arch/mips/mm/init.c +++ b/arch/mips/mm/init.c @@ -29,6 +29,7 @@ #include #include #include +#include #include #include diff --git a/arch/score/mm/init.c b/arch/score/mm/init.c index cee6bce1e30c..8b6f796c6ade 100644 --- a/arch/score/mm/init.c +++ b/arch/score/mm/init.c @@ -31,7 +31,7 @@ #include #include #include -#include +#include #include #include diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index 474e28f10815..24ceda0101bb 100644 --- a/arch/x86/mm/init_64.c +++ b/arch/x86/mm/init_64.c @@ -32,6 +32,7 @@ #include #include #include +#include #include #include diff --git a/fs/proc/kcore.c b/fs/proc/kcore.c index eda6f017f272..8e6ce830de44 100644 --- a/fs/proc/kcore.c +++ b/fs/proc/kcore.c @@ -11,6 +11,7 @@ #include #include +#include #include #include #include diff --git a/fs/proc/vmcore.c b/fs/proc/vmcore.c index b870f740ab5a..38edddc25816 100644 --- a/fs/proc/vmcore.c +++ b/fs/proc/vmcore.c @@ -8,7 +8,7 @@ */ #include -#include +#include #include #include #include @@ -22,6 +22,7 @@ #include #include #include +#include "internal.h" /* List representing chunks of contiguous memory areas and their offsets in * vmcore file. diff --git a/include/linux/kcore.h b/include/linux/kcore.h new file mode 100644 index 000000000000..d92762286645 --- /dev/null +++ b/include/linux/kcore.h @@ -0,0 +1,38 @@ +/* + * /proc/kcore definitions + */ +#ifndef _LINUX_KCORE_H +#define _LINUX_KCORE_H + +enum kcore_type { + KCORE_TEXT, + KCORE_VMALLOC, + KCORE_RAM, + KCORE_VMEMMAP, + KCORE_OTHER, +}; + +struct kcore_list { + struct list_head list; + unsigned long addr; + size_t size; + int type; +}; + +struct vmcore { + struct list_head list; + unsigned long long paddr; + unsigned long long size; + loff_t offset; +}; + +#ifdef CONFIG_PROC_KCORE +extern void kclist_add(struct kcore_list *, void *, size_t, int type); +#else +static inline +void kclist_add(struct kcore_list *new, void *addr, size_t size, int type) +{ +} +#endif + +#endif /* _LINUX_KCORE_H */ diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h index f5105f4e54f4..805edacfc2fc 100644 --- a/include/linux/proc_fs.h +++ b/include/linux/proc_fs.h @@ -68,28 +68,6 @@ struct proc_dir_entry { char name[]; }; -enum kcore_type { - KCORE_TEXT, - KCORE_VMALLOC, - KCORE_RAM, - KCORE_VMEMMAP, - KCORE_OTHER, -}; - -struct kcore_list { - struct list_head list; - unsigned long addr; - size_t size; - int type; -}; - -struct vmcore { - struct list_head list; - unsigned long long paddr; - unsigned long long size; - loff_t offset; -}; - #ifdef CONFIG_PROC_FS extern void proc_root_init(void); @@ -214,15 +192,6 @@ static inline void proc_free_inum(unsigned int inum) } #endif /* CONFIG_PROC_FS */ -#if !defined(CONFIG_PROC_KCORE) -static inline void -kclist_add(struct kcore_list *new, void *addr, size_t size, int type) -{ -} -#else -extern void kclist_add(struct kcore_list *, void *, size_t, int type); -#endif - struct nsproxy; struct proc_ns_operations { const char *name; From 271a15eabe094538d958dc68ccfc9c36b699247a Mon Sep 17 00:00:00 2001 From: David Howells Date: Fri, 12 Apr 2013 00:38:51 +0100 Subject: [PATCH 181/204] proc: Supply PDE attribute setting accessor functions Supply accessor functions to set attributes in proc_dir_entry structs. The following are supplied: proc_set_size() and proc_set_user(). Signed-off-by: David Howells Acked-by: Mauro Carvalho Chehab cc: linuxppc-dev@lists.ozlabs.org cc: linux-media@vger.kernel.org cc: netdev@vger.kernel.org cc: linux-wireless@vger.kernel.org cc: linux-pci@vger.kernel.org cc: netfilter-devel@vger.kernel.org cc: alsa-devel@alsa-project.org Signed-off-by: Al Viro --- arch/powerpc/kernel/proc_powerpc.c | 2 +- arch/powerpc/platforms/pseries/reconfig.c | 2 +- drivers/media/pci/ttpci/av7110_ir.c | 2 +- drivers/net/irda/vlsi_ir.c | 2 +- drivers/net/wireless/airo.c | 34 ++++++++--------------- drivers/pci/proc.c | 2 +- drivers/pnp/isapnp/proc.c | 2 +- drivers/zorro/proc.c | 2 +- fs/proc/generic.c | 13 +++++++++ include/linux/proc_fs.h | 5 ++++ kernel/configs.c | 2 +- kernel/profile.c | 2 +- net/netfilter/xt_recent.c | 3 +- sound/core/info.c | 2 +- 14 files changed, 40 insertions(+), 35 deletions(-) diff --git a/arch/powerpc/kernel/proc_powerpc.c b/arch/powerpc/kernel/proc_powerpc.c index 41d8ee9c82f1..feb8580fdc84 100644 --- a/arch/powerpc/kernel/proc_powerpc.c +++ b/arch/powerpc/kernel/proc_powerpc.c @@ -83,7 +83,7 @@ static int __init proc_ppc64_init(void) &page_map_fops, vdso_data); if (!pde) return 1; - pde->size = PAGE_SIZE; + proc_set_size(pde, PAGE_SIZE); return 0; } diff --git a/arch/powerpc/platforms/pseries/reconfig.c b/arch/powerpc/platforms/pseries/reconfig.c index d6491bd481d0..f93cdf55628c 100644 --- a/arch/powerpc/platforms/pseries/reconfig.c +++ b/arch/powerpc/platforms/pseries/reconfig.c @@ -452,7 +452,7 @@ static int proc_ppc64_create_ofdt(void) ent = proc_create("powerpc/ofdt", S_IWUSR, NULL, &ofdt_fops); if (ent) - ent->size = 0; + proc_set_size(ent, 0); return 0; } diff --git a/drivers/media/pci/ttpci/av7110_ir.c b/drivers/media/pci/ttpci/av7110_ir.c index eb822862a646..0e763a784e2b 100644 --- a/drivers/media/pci/ttpci/av7110_ir.c +++ b/drivers/media/pci/ttpci/av7110_ir.c @@ -375,7 +375,7 @@ int av7110_ir_init(struct av7110 *av7110) if (av_cnt == 1) { e = proc_create("av7110_ir", S_IWUSR, NULL, &av7110_ir_proc_fops); if (e) - e->size = 4 + 256 * sizeof(u16); + proc_set_size(e, 4 + 256 * sizeof(u16)); } tasklet_init(&av7110->ir.ir_tasklet, av7110_emit_key, (unsigned long) &av7110->ir); diff --git a/drivers/net/irda/vlsi_ir.c b/drivers/net/irda/vlsi_ir.c index e22cd4e7017a..5f4758492e4c 100644 --- a/drivers/net/irda/vlsi_ir.c +++ b/drivers/net/irda/vlsi_ir.c @@ -1678,7 +1678,7 @@ vlsi_irda_probe(struct pci_dev *pdev, const struct pci_device_id *id) IRDA_WARNING("%s: failed to create proc entry\n", __func__); } else { - ent->size = 0; + proc_set_size(ent, 0); } idev->proc_entry = ent; } diff --git a/drivers/net/wireless/airo.c b/drivers/net/wireless/airo.c index 66e398d4730d..21d02335b46f 100644 --- a/drivers/net/wireless/airo.c +++ b/drivers/net/wireless/airo.c @@ -4507,73 +4507,63 @@ static int setup_proc_entry( struct net_device *dev, airo_entry); if (!apriv->proc_entry) goto fail; - apriv->proc_entry->uid = proc_kuid; - apriv->proc_entry->gid = proc_kgid; + proc_set_user(apriv->proc_entry, proc_kuid, proc_kgid); /* Setup the StatsDelta */ entry = proc_create_data("StatsDelta", S_IRUGO & proc_perm, apriv->proc_entry, &proc_statsdelta_ops, dev); if (!entry) goto fail_stats_delta; - entry->uid = proc_kuid; - entry->gid = proc_kgid; + proc_set_user(entry, proc_kuid, proc_kgid); /* Setup the Stats */ entry = proc_create_data("Stats", S_IRUGO & proc_perm, apriv->proc_entry, &proc_stats_ops, dev); if (!entry) goto fail_stats; - entry->uid = proc_kuid; - entry->gid = proc_kgid; + proc_set_user(entry, proc_kuid, proc_kgid); /* Setup the Status */ entry = proc_create_data("Status", S_IRUGO & proc_perm, apriv->proc_entry, &proc_status_ops, dev); if (!entry) goto fail_status; - entry->uid = proc_kuid; - entry->gid = proc_kgid; + proc_set_user(entry, proc_kuid, proc_kgid); /* Setup the Config */ entry = proc_create_data("Config", proc_perm, apriv->proc_entry, &proc_config_ops, dev); if (!entry) goto fail_config; - entry->uid = proc_kuid; - entry->gid = proc_kgid; + proc_set_user(entry, proc_kuid, proc_kgid); /* Setup the SSID */ entry = proc_create_data("SSID", proc_perm, apriv->proc_entry, &proc_SSID_ops, dev); if (!entry) goto fail_ssid; - entry->uid = proc_kuid; - entry->gid = proc_kgid; + proc_set_user(entry, proc_kuid, proc_kgid); /* Setup the APList */ entry = proc_create_data("APList", proc_perm, apriv->proc_entry, &proc_APList_ops, dev); if (!entry) goto fail_aplist; - entry->uid = proc_kuid; - entry->gid = proc_kgid; + proc_set_user(entry, proc_kuid, proc_kgid); /* Setup the BSSList */ entry = proc_create_data("BSSList", proc_perm, apriv->proc_entry, &proc_BSSList_ops, dev); if (!entry) goto fail_bsslist; - entry->uid = proc_kuid; - entry->gid = proc_kgid; + proc_set_user(entry, proc_kuid, proc_kgid); /* Setup the WepKey */ entry = proc_create_data("WepKey", proc_perm, apriv->proc_entry, &proc_wepkey_ops, dev); if (!entry) goto fail_wepkey; - entry->uid = proc_kuid; - entry->gid = proc_kgid; - + proc_set_user(entry, proc_kuid, proc_kgid); return 0; fail_wepkey: @@ -5695,10 +5685,8 @@ static int __init airo_init_module( void ) airo_entry = proc_mkdir_mode("driver/aironet", airo_perm, NULL); - if (airo_entry) { - airo_entry->uid = proc_kuid; - airo_entry->gid = proc_kgid; - } + if (airo_entry) + proc_set_user(airo_entry, proc_kuid, proc_kgid); for (i = 0; i < 4 && io[i] && irq[i]; i++) { airo_print_info("", "Trying to configure ISA adapter at irq=%d " diff --git a/drivers/pci/proc.c b/drivers/pci/proc.c index 12e4fb5824c1..7cde7c131fd0 100644 --- a/drivers/pci/proc.c +++ b/drivers/pci/proc.c @@ -419,7 +419,7 @@ int pci_proc_attach_device(struct pci_dev *dev) &proc_bus_pci_operations, dev); if (!e) return -ENOMEM; - e->size = dev->cfg_size; + proc_set_size(e, dev->cfg_size); dev->procent = e; return 0; diff --git a/drivers/pnp/isapnp/proc.c b/drivers/pnp/isapnp/proc.c index af4d40affb79..2365ef37ae24 100644 --- a/drivers/pnp/isapnp/proc.c +++ b/drivers/pnp/isapnp/proc.c @@ -105,7 +105,7 @@ static int isapnp_proc_attach_device(struct pnp_dev *dev) &isapnp_proc_bus_file_operations, dev); if (!e) return -ENOMEM; - e->size = 256; + proc_set_size(e, 256); return 0; } diff --git a/drivers/zorro/proc.c b/drivers/zorro/proc.c index 6d3a602c004b..1c15ee7456b6 100644 --- a/drivers/zorro/proc.c +++ b/drivers/zorro/proc.c @@ -139,7 +139,7 @@ static int __init zorro_proc_attach_device(unsigned int slot) &zorro_autocon[slot]); if (!entry) return -ENOMEM; - entry->size = sizeof(struct zorro_dev); + proc_set_size(entry, sizeof(struct zorro_dev)); return 0; } diff --git a/fs/proc/generic.c b/fs/proc/generic.c index 1c07cadeb8db..5f6f6c38701f 100644 --- a/fs/proc/generic.c +++ b/fs/proc/generic.c @@ -498,6 +498,19 @@ struct proc_dir_entry *proc_create_data(const char *name, umode_t mode, return NULL; } EXPORT_SYMBOL(proc_create_data); + +void proc_set_size(struct proc_dir_entry *de, loff_t size) +{ + de->size = size; +} +EXPORT_SYMBOL(proc_set_size); + +void proc_set_user(struct proc_dir_entry *de, kuid_t uid, kgid_t gid) +{ + de->uid = uid; + de->gid = gid; +} +EXPORT_SYMBOL(proc_set_user); static void free_proc_entry(struct proc_dir_entry *de) { diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h index 805edacfc2fc..28a4d7e78803 100644 --- a/include/linux/proc_fs.h +++ b/include/linux/proc_fs.h @@ -130,6 +130,9 @@ static inline struct proc_dir_entry *proc_create(const char *name, umode_t mode, extern struct proc_dir_entry *proc_net_mkdir(struct net *net, const char *name, struct proc_dir_entry *parent); +extern void proc_set_size(struct proc_dir_entry *, loff_t); +extern void proc_set_user(struct proc_dir_entry *, kuid_t, kgid_t); + extern struct file *proc_ns_fget(int fd); extern bool proc_ns_inode(struct inode *inode); @@ -158,6 +161,8 @@ static inline struct proc_dir_entry *proc_mkdir(const char *name, struct proc_dir_entry *parent) {return NULL;} static inline struct proc_dir_entry *proc_mkdir_mode(const char *name, umode_t mode, struct proc_dir_entry *parent) { return NULL; } +static inline void proc_set_size(struct proc_dir_entry *de, loff_t size) {} +static inline void proc_set_user(struct proc_dir_entry *de, kuid_t uid, kgid_t gid) {} struct tty_driver; static inline void proc_tty_register_driver(struct tty_driver *driver) {}; diff --git a/kernel/configs.c b/kernel/configs.c index 42e8fa075eed..c18b1f1ae515 100644 --- a/kernel/configs.c +++ b/kernel/configs.c @@ -79,7 +79,7 @@ static int __init ikconfig_init(void) if (!entry) return -ENOMEM; - entry->size = kernel_config_data_size; + proc_set_size(entry, kernel_config_data_size); return 0; } diff --git a/kernel/profile.c b/kernel/profile.c index 524ce5e29d3f..0bf400737660 100644 --- a/kernel/profile.c +++ b/kernel/profile.c @@ -600,7 +600,7 @@ int __ref create_proc_profile(void) /* false positive from hotcpu_notifier */ NULL, &proc_profile_operations); if (!entry) return 0; - entry->size = (1+prof_len) * sizeof(atomic_t); + proc_set_size(entry, (1 + prof_len) * sizeof(atomic_t)); hotcpu_notifier(profile_cpu_callback, 0); return 0; } diff --git a/net/netfilter/xt_recent.c b/net/netfilter/xt_recent.c index 3db2d387cf52..1e657cf715c4 100644 --- a/net/netfilter/xt_recent.c +++ b/net/netfilter/xt_recent.c @@ -401,8 +401,7 @@ static int recent_mt_check(const struct xt_mtchk_param *par, ret = -ENOMEM; goto out; } - pde->uid = uid; - pde->gid = gid; + proc_set_user(pde, uid, gid); #endif spin_lock_bh(&recent_lock); list_add_tail(&t->list, &recent_net->tables); diff --git a/sound/core/info.c b/sound/core/info.c index 3aa88640808e..c7f41c3bbd5c 100644 --- a/sound/core/info.c +++ b/sound/core/info.c @@ -970,7 +970,7 @@ int snd_info_register(struct snd_info_entry * entry) mutex_unlock(&info_mutex); return -ENOMEM; } - p->size = entry->size; + proc_set_size(p, entry->size); } entry->p = p; if (entry->parent) From 1dd704b6175f067781807ad4da1b878357dc9755 Mon Sep 17 00:00:00 2001 From: David Howells Date: Fri, 12 Apr 2013 01:08:50 +0100 Subject: [PATCH 182/204] proc: Uninline pid_delete_dentry() Uninline pid_delete_dentry() as it's only used by three function pointers. Signed-off-by: David Howells Signed-off-by: Al Viro --- fs/proc/base.c | 9 +++++++++ fs/proc/internal.h | 14 +++++--------- 2 files changed, 14 insertions(+), 9 deletions(-) diff --git a/fs/proc/base.c b/fs/proc/base.c index 593e7c5ddb49..f2637c972160 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -1621,6 +1621,15 @@ int pid_revalidate(struct dentry *dentry, unsigned int flags) return 0; } +int pid_delete_dentry(const struct dentry *dentry) +{ + /* Is the task we represent dead? + * If so, then don't put the dentry on the lru list, + * kill it immediately. + */ + return !proc_pid(dentry->d_inode)->tasks[PIDTYPE_PID].first; +} + const struct dentry_operations pid_dentry_operations = { .d_revalidate = pid_revalidate, diff --git a/fs/proc/internal.h b/fs/proc/internal.h index 4b13417acfc4..aaf2dd8c2b10 100644 --- a/fs/proc/internal.h +++ b/fs/proc/internal.h @@ -114,15 +114,6 @@ static inline int task_dumpable(struct task_struct *task) return 0; } -static inline int pid_delete_dentry(const struct dentry * dentry) -{ - /* Is the task we represent dead? - * If so, then don't put the dentry on the lru list, - * kill it immediately. - */ - return !proc_pid(dentry->d_inode)->tasks[PIDTYPE_PID].first; -} - static inline unsigned name_to_int(struct dentry *dentry) { const char *name = dentry->d_name.name; @@ -145,6 +136,11 @@ static inline unsigned name_to_int(struct dentry *dentry) return ~0U; } +/* + * base.c + */ +extern int pid_delete_dentry(const struct dentry *); + struct dentry *proc_lookup_de(struct proc_dir_entry *de, struct inode *ino, struct dentry *dentry); int proc_readdir_de(struct proc_dir_entry *de, struct file *filp, void *dirent, From c3bef7bcaaa7d9f6704fcd81a171c9f0c91a2259 Mon Sep 17 00:00:00 2001 From: David Howells Date: Fri, 12 Apr 2013 01:42:56 +0100 Subject: [PATCH 183/204] proc: Move proc_fd() to fs/proc/fd.h Move proc_fd() to fs/proc/fd.h. Signed-off-by: David Howells Signed-off-by: Al Viro --- fs/proc/fd.h | 5 +++++ fs/proc/internal.h | 5 ----- 2 files changed, 5 insertions(+), 5 deletions(-) diff --git a/fs/proc/fd.h b/fs/proc/fd.h index cbb1d47deda8..7c047f256ae2 100644 --- a/fs/proc/fd.h +++ b/fs/proc/fd.h @@ -11,4 +11,9 @@ extern const struct inode_operations proc_fdinfo_inode_operations; extern int proc_fd_permission(struct inode *inode, int mask); +static inline int proc_fd(struct inode *inode) +{ + return PROC_I(inode)->fd; +} + #endif /* __PROCFS_FD_H__ */ diff --git a/fs/proc/internal.h b/fs/proc/internal.h index aaf2dd8c2b10..32d8f510d65c 100644 --- a/fs/proc/internal.h +++ b/fs/proc/internal.h @@ -94,11 +94,6 @@ static inline struct task_struct *get_proc_task(struct inode *inode) return get_pid_task(proc_pid(inode), PIDTYPE_PID); } -static inline int proc_fd(struct inode *inode) -{ - return PROC_I(inode)->fd; -} - static inline int task_dumpable(struct task_struct *task) { int dumpable = 0; From 0bb80f240520c4148b623161e7856858c021696d Mon Sep 17 00:00:00 2001 From: David Howells Date: Fri, 12 Apr 2013 01:50:06 +0100 Subject: [PATCH 184/204] proc: Split the namespace stuff out into linux/proc_ns.h Split the proc namespace stuff out into linux/proc_ns.h. Signed-off-by: David Howells cc: netdev@vger.kernel.org cc: Serge E. Hallyn cc: Eric W. Biederman Signed-off-by: Al Viro --- fs/namespace.c | 6 ++-- fs/proc/inode.c | 8 ++--- fs/proc/namespaces.c | 17 +++++---- include/linux/proc_fs.h | 68 ++---------------------------------- include/linux/proc_ns.h | 74 ++++++++++++++++++++++++++++++++++++++++ init/version.c | 2 +- ipc/msgutil.c | 2 +- ipc/namespace.c | 2 +- kernel/nsproxy.c | 6 ++-- kernel/pid.c | 1 + kernel/pid_namespace.c | 2 +- kernel/user.c | 2 +- kernel/user_namespace.c | 2 +- kernel/utsname.c | 2 +- net/core/net_namespace.c | 7 ++-- 15 files changed, 109 insertions(+), 92 deletions(-) create mode 100644 include/linux/proc_ns.h diff --git a/fs/namespace.c b/fs/namespace.c index ed0708f2415f..0f0cf9379c9e 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -21,7 +21,7 @@ #include /* get_fs_root et.al. */ #include /* fsnotify_vfsmount_delete */ #include -#include +#include #include "pnode.h" #include "internal.h" @@ -1350,13 +1350,13 @@ static bool mnt_ns_loop(struct path *path) * mount namespace loop? */ struct inode *inode = path->dentry->d_inode; - struct proc_inode *ei; + struct proc_ns *ei; struct mnt_namespace *mnt_ns; if (!proc_ns_inode(inode)) return false; - ei = PROC_I(inode); + ei = get_proc_ns(inode); if (ei->ns_ops != &mntns_operations) return false; diff --git a/fs/proc/inode.c b/fs/proc/inode.c index bd2f76427fec..073aea60cf8f 100644 --- a/fs/proc/inode.c +++ b/fs/proc/inode.c @@ -51,8 +51,8 @@ static void proc_evict_inode(struct inode *inode) sysctl_head_put(head); } /* Release any associated namespace */ - ns_ops = PROC_I(inode)->ns_ops; - ns = PROC_I(inode)->ns; + ns_ops = PROC_I(inode)->ns.ns_ops; + ns = PROC_I(inode)->ns.ns; if (ns_ops && ns) ns_ops->put(ns); } @@ -73,8 +73,8 @@ static struct inode *proc_alloc_inode(struct super_block *sb) ei->pde = NULL; ei->sysctl = NULL; ei->sysctl_entry = NULL; - ei->ns = NULL; - ei->ns_ops = NULL; + ei->ns.ns = NULL; + ei->ns.ns_ops = NULL; inode = &ei->vfs_inode; inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME; return inode; diff --git a/fs/proc/namespaces.c b/fs/proc/namespaces.c index 66b51c0383da..54bdc6701e9f 100644 --- a/fs/proc/namespaces.c +++ b/fs/proc/namespaces.c @@ -51,7 +51,7 @@ static int ns_delete_dentry(const struct dentry *dentry) static char *ns_dname(struct dentry *dentry, char *buffer, int buflen) { struct inode *inode = dentry->d_inode; - const struct proc_ns_operations *ns_ops = PROC_I(inode)->ns_ops; + const struct proc_ns_operations *ns_ops = PROC_I(inode)->ns.ns_ops; return dynamic_dname(dentry, buffer, buflen, "%s:[%lu]", ns_ops->name, inode->i_ino); @@ -95,8 +95,8 @@ static struct dentry *proc_ns_get_dentry(struct super_block *sb, inode->i_op = &ns_inode_operations; inode->i_mode = S_IFREG | S_IRUGO; inode->i_fop = &ns_file_operations; - ei->ns_ops = ns_ops; - ei->ns = ns; + ei->ns.ns_ops = ns_ops; + ei->ns.ns = ns; unlock_new_inode(inode); } else { ns_ops->put(ns); @@ -128,7 +128,7 @@ static void *proc_ns_follow_link(struct dentry *dentry, struct nameidata *nd) if (!ptrace_may_access(task, PTRACE_MODE_READ)) goto out_put_task; - ns_path.dentry = proc_ns_get_dentry(sb, task, ei->ns_ops); + ns_path.dentry = proc_ns_get_dentry(sb, task, ei->ns.ns_ops); if (IS_ERR(ns_path.dentry)) { error = ERR_CAST(ns_path.dentry); goto out_put_task; @@ -148,7 +148,7 @@ static int proc_ns_readlink(struct dentry *dentry, char __user *buffer, int bufl { struct inode *inode = dentry->d_inode; struct proc_inode *ei = PROC_I(inode); - const struct proc_ns_operations *ns_ops = ei->ns_ops; + const struct proc_ns_operations *ns_ops = ei->ns.ns_ops; struct task_struct *task; void *ns; char name[50]; @@ -202,7 +202,7 @@ static struct dentry *proc_ns_instantiate(struct inode *dir, ei = PROC_I(inode); inode->i_mode = S_IFLNK|S_IRWXUGO; inode->i_op = &proc_ns_link_inode_operations; - ei->ns_ops = ns_ops; + ei->ns.ns_ops = ns_ops; d_set_d_op(dentry, &pid_dentry_operations); d_add(dentry, inode); @@ -337,6 +337,11 @@ struct file *proc_ns_fget(int fd) return ERR_PTR(-EINVAL); } +struct proc_ns *get_proc_ns(struct inode *inode) +{ + return &PROC_I(inode)->ns; +} + bool proc_ns_inode(struct inode *inode) { return inode->i_fop == &ns_file_operations; diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h index 28a4d7e78803..8f7d8f24141a 100644 --- a/include/linux/proc_fs.h +++ b/include/linux/proc_fs.h @@ -6,6 +6,7 @@ #include #include #include +#include struct net; struct completion; @@ -23,18 +24,6 @@ struct mm_struct; /* Worst case buffer size needed for holding an integer. */ #define PROC_NUMBUF 13 -/* - * We always define these enumerators - */ - -enum { - PROC_ROOT_INO = 1, - PROC_IPC_INIT_INO = 0xEFFFFFFFU, - PROC_UTS_INIT_INO = 0xEFFFFFFEU, - PROC_USER_INIT_INO = 0xEFFFFFFDU, - PROC_PID_INIT_INO = 0xEFFFFFFCU, -}; - /* * This is not completely implemented yet. The idea is to * create an in-memory tree (like the actual /proc filesystem @@ -81,10 +70,6 @@ struct proc_dir_entry *proc_create_data(const char *name, umode_t mode, extern void remove_proc_entry(const char *name, struct proc_dir_entry *parent); extern int remove_proc_subtree(const char *name, struct proc_dir_entry *parent); -struct pid_namespace; - -extern int pid_ns_prepare_proc(struct pid_namespace *ns); -extern void pid_ns_release_proc(struct pid_namespace *ns); /* * proc_tty.c @@ -132,12 +117,6 @@ extern struct proc_dir_entry *proc_net_mkdir(struct net *net, const char *name, extern void proc_set_size(struct proc_dir_entry *, loff_t); extern void proc_set_user(struct proc_dir_entry *, kuid_t, kgid_t); - -extern struct file *proc_ns_fget(int fd); -extern bool proc_ns_inode(struct inode *inode); - -extern int proc_alloc_inum(unsigned int *pino); -extern void proc_free_inum(unsigned int inum); #else static inline void proc_flush_task(struct task_struct *task) @@ -168,50 +147,8 @@ struct tty_driver; static inline void proc_tty_register_driver(struct tty_driver *driver) {}; static inline void proc_tty_unregister_driver(struct tty_driver *driver) {}; -static inline int pid_ns_prepare_proc(struct pid_namespace *ns) -{ - return 0; -} - -static inline void pid_ns_release_proc(struct pid_namespace *ns) -{ -} - -static inline struct file *proc_ns_fget(int fd) -{ - return ERR_PTR(-EINVAL); -} - -static inline bool proc_ns_inode(struct inode *inode) -{ - return false; -} - -static inline int proc_alloc_inum(unsigned int *inum) -{ - *inum = 1; - return 0; -} -static inline void proc_free_inum(unsigned int inum) -{ -} #endif /* CONFIG_PROC_FS */ -struct nsproxy; -struct proc_ns_operations { - const char *name; - int type; - void *(*get)(struct task_struct *task); - void (*put)(void *ns); - int (*install)(struct nsproxy *nsproxy, void *ns); - unsigned int (*inum)(void *ns); -}; -extern const struct proc_ns_operations netns_operations; -extern const struct proc_ns_operations utsns_operations; -extern const struct proc_ns_operations ipcns_operations; -extern const struct proc_ns_operations pidns_operations; -extern const struct proc_ns_operations userns_operations; -extern const struct proc_ns_operations mntns_operations; union proc_op { int (*proc_get_link)(struct dentry *, struct path *); @@ -231,8 +168,7 @@ struct proc_inode { struct proc_dir_entry *pde; struct ctl_table_header *sysctl; struct ctl_table *sysctl_entry; - void *ns; - const struct proc_ns_operations *ns_ops; + struct proc_ns ns; struct inode vfs_inode; }; diff --git a/include/linux/proc_ns.h b/include/linux/proc_ns.h new file mode 100644 index 000000000000..34a1e105bef4 --- /dev/null +++ b/include/linux/proc_ns.h @@ -0,0 +1,74 @@ +/* + * procfs namespace bits + */ +#ifndef _LINUX_PROC_NS_H +#define _LINUX_PROC_NS_H + +struct pid_namespace; +struct nsproxy; + +struct proc_ns_operations { + const char *name; + int type; + void *(*get)(struct task_struct *task); + void (*put)(void *ns); + int (*install)(struct nsproxy *nsproxy, void *ns); + unsigned int (*inum)(void *ns); +}; + +struct proc_ns { + void *ns; + const struct proc_ns_operations *ns_ops; +}; + +extern const struct proc_ns_operations netns_operations; +extern const struct proc_ns_operations utsns_operations; +extern const struct proc_ns_operations ipcns_operations; +extern const struct proc_ns_operations pidns_operations; +extern const struct proc_ns_operations userns_operations; +extern const struct proc_ns_operations mntns_operations; + +/* + * We always define these enumerators + */ +enum { + PROC_ROOT_INO = 1, + PROC_IPC_INIT_INO = 0xEFFFFFFFU, + PROC_UTS_INIT_INO = 0xEFFFFFFEU, + PROC_USER_INIT_INO = 0xEFFFFFFDU, + PROC_PID_INIT_INO = 0xEFFFFFFCU, +}; + +#ifdef CONFIG_PROC_FS + +extern int pid_ns_prepare_proc(struct pid_namespace *ns); +extern void pid_ns_release_proc(struct pid_namespace *ns); +extern struct file *proc_ns_fget(int fd); +extern struct proc_ns *get_proc_ns(struct inode *); +extern int proc_alloc_inum(unsigned int *pino); +extern void proc_free_inum(unsigned int inum); +extern bool proc_ns_inode(struct inode *inode); + +#else /* CONFIG_PROC_FS */ + +static inline int pid_ns_prepare_proc(struct pid_namespace *ns) { return 0; } +static inline void pid_ns_release_proc(struct pid_namespace *ns) {} + +static inline struct file *proc_ns_fget(int fd) +{ + return ERR_PTR(-EINVAL); +} + +static inline struct proc_ns *get_proc_ns(struct inode *inode) { return NULL; } + +static inline int proc_alloc_inum(unsigned int *inum) +{ + *inum = 1; + return 0; +} +static inline void proc_free_inum(unsigned int inum) {} +static inline bool proc_ns_inode(struct inode *inode) { return false; } + +#endif /* CONFIG_PROC_FS */ + +#endif /* _LINUX_PROC_NS_H */ diff --git a/init/version.c b/init/version.c index 58170f18912d..1a4718e500fe 100644 --- a/init/version.c +++ b/init/version.c @@ -12,7 +12,7 @@ #include #include #include -#include +#include #ifndef CONFIG_KALLSYMS #define version(a) Version_ ## a diff --git a/ipc/msgutil.c b/ipc/msgutil.c index 5df8e4bf1db0..8f0201735f16 100644 --- a/ipc/msgutil.c +++ b/ipc/msgutil.c @@ -16,7 +16,7 @@ #include #include #include -#include +#include #include #include "util.h" diff --git a/ipc/namespace.c b/ipc/namespace.c index 7c1fa451b0b0..7ee61bf44933 100644 --- a/ipc/namespace.c +++ b/ipc/namespace.c @@ -12,7 +12,7 @@ #include #include #include -#include +#include #include "util.h" diff --git a/kernel/nsproxy.c b/kernel/nsproxy.c index afc0456f227a..364ceab15f0c 100644 --- a/kernel/nsproxy.c +++ b/kernel/nsproxy.c @@ -22,7 +22,7 @@ #include #include #include -#include +#include #include #include @@ -241,7 +241,7 @@ SYSCALL_DEFINE2(setns, int, fd, int, nstype) const struct proc_ns_operations *ops; struct task_struct *tsk = current; struct nsproxy *new_nsproxy; - struct proc_inode *ei; + struct proc_ns *ei; struct file *file; int err; @@ -250,7 +250,7 @@ SYSCALL_DEFINE2(setns, int, fd, int, nstype) return PTR_ERR(file); err = -EINVAL; - ei = PROC_I(file_inode(file)); + ei = get_proc_ns(file_inode(file)); ops = ei->ns_ops; if (nstype && (ops->type != nstype)) goto out; diff --git a/kernel/pid.c b/kernel/pid.c index 047dc6264638..686255e2c39e 100644 --- a/kernel/pid.c +++ b/kernel/pid.c @@ -36,6 +36,7 @@ #include #include #include +#include #include #define pid_hashfn(nr, ns) \ diff --git a/kernel/pid_namespace.c b/kernel/pid_namespace.c index c1c3dc1c6023..4af28a849065 100644 --- a/kernel/pid_namespace.c +++ b/kernel/pid_namespace.c @@ -15,7 +15,7 @@ #include #include #include -#include +#include #include #include diff --git a/kernel/user.c b/kernel/user.c index e81978e8c03b..5bbb91988e69 100644 --- a/kernel/user.c +++ b/kernel/user.c @@ -16,7 +16,7 @@ #include #include #include -#include +#include /* * userns count is 1 for root user, 1 for init_uts_ns, diff --git a/kernel/user_namespace.c b/kernel/user_namespace.c index b14f4d342043..51855f5f6311 100644 --- a/kernel/user_namespace.c +++ b/kernel/user_namespace.c @@ -9,7 +9,7 @@ #include #include #include -#include +#include #include #include #include diff --git a/kernel/utsname.c b/kernel/utsname.c index a47fc5de3113..2fc8576efaa8 100644 --- a/kernel/utsname.c +++ b/kernel/utsname.c @@ -15,7 +15,7 @@ #include #include #include -#include +#include static struct uts_namespace *create_uts_ns(void) { diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c index 80e271d9e64b..f97652036754 100644 --- a/net/core/net_namespace.c +++ b/net/core/net_namespace.c @@ -10,7 +10,8 @@ #include #include #include -#include +#include +#include #include #include #include @@ -336,7 +337,7 @@ EXPORT_SYMBOL_GPL(__put_net); struct net *get_net_ns_by_fd(int fd) { - struct proc_inode *ei; + struct proc_ns *ei; struct file *file; struct net *net; @@ -344,7 +345,7 @@ struct net *get_net_ns_by_fd(int fd) if (IS_ERR(file)) return ERR_CAST(file); - ei = PROC_I(file_inode(file)); + ei = get_proc_ns(file_inode(file)); if (ei->ns_ops == &netns_operations) net = get_net(ei->ns); else From 4abfd0298900851930310e5d736a7f3a105089ec Mon Sep 17 00:00:00 2001 From: David Howells Date: Fri, 12 Apr 2013 02:09:03 +0100 Subject: [PATCH 185/204] proc: Move PDE_NET() to fs/proc/proc_net.c Move PDE_NET() to fs/proc/proc_net.c as that's where the only user is. Signed-off-by: David Howells Signed-off-by: Al Viro --- fs/proc/proc_net.c | 4 ++++ include/linux/proc_fs.h | 5 ----- 2 files changed, 4 insertions(+), 5 deletions(-) diff --git a/fs/proc/proc_net.c b/fs/proc/proc_net.c index b4ac6572474f..986e83220d56 100644 --- a/fs/proc/proc_net.c +++ b/fs/proc/proc_net.c @@ -26,6 +26,10 @@ #include "internal.h" +static inline struct net *PDE_NET(struct proc_dir_entry *pde) +{ + return pde->parent->data; +} static struct net *get_proc_net(const struct inode *inode) { diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h index 8f7d8f24141a..33772248a3b1 100644 --- a/include/linux/proc_fs.h +++ b/include/linux/proc_fs.h @@ -187,11 +187,6 @@ static inline void *PDE_DATA(const struct inode *inode) return PROC_I(inode)->pde->data; } -static inline struct net *PDE_NET(struct proc_dir_entry *pde) -{ - return pde->parent->data; -} - #include void render_sigset_t(struct seq_file *m, const char *header, sigset_t *set); From 34db8aaf0f95ffac407d39da22972b38da631db4 Mon Sep 17 00:00:00 2001 From: David Howells Date: Fri, 12 Apr 2013 02:29:19 +0100 Subject: [PATCH 186/204] proc: Move some bits from linux/proc_fs.h to linux/{of.h,signal.h,tty.h} Move some bits from linux/proc_fs.h to linux/of.h, signal.h and tty.h. Also move proc_tty_init() and proc_device_tree_init() to fs/proc/internal.h as they're internal to procfs. Signed-off-by: David Howells Acked-by: Greg Kroah-Hartman Acked-by: Grant Likely cc: devicetree-discuss@lists.ozlabs.org cc: linux-arch@vger.kernel.org cc: Greg Kroah-Hartman cc: Jri Slaby Signed-off-by: Al Viro --- fs/proc/internal.h | 16 ++++++++++++++++ include/linux/of.h | 10 ++++++++++ include/linux/proc_fs.h | 37 ------------------------------------- include/linux/signal.h | 5 +++++ include/linux/tty.h | 7 +++++++ 5 files changed, 38 insertions(+), 37 deletions(-) diff --git a/fs/proc/internal.h b/fs/proc/internal.h index 32d8f510d65c..c529b5f16ee4 100644 --- a/fs/proc/internal.h +++ b/fs/proc/internal.h @@ -198,3 +198,19 @@ extern const struct inode_operations proc_ns_dir_inode_operations; extern const struct file_operations proc_ns_dir_operations; extern int proc_setup_self(struct super_block *); + +/* + * proc_devtree.c + */ +#ifdef CONFIG_PROC_DEVICETREE +extern void proc_device_tree_init(void); +#endif /* CONFIG_PROC_DEVICETREE */ + +/* + * proc_tty.c + */ +#ifdef CONFIG_TTY +extern void proc_tty_init(void); +#else +static inline void proc_tty_init(void) {} +#endif diff --git a/include/linux/of.h b/include/linux/of.h index a0f129284948..2d25ff8fe39a 100644 --- a/include/linux/of.h +++ b/include/linux/of.h @@ -540,4 +540,14 @@ static inline int of_property_read_u32(const struct device_node *np, return of_property_read_u32_array(np, propname, out_value, 1); } +#if defined(CONFIG_PROC_FS) && defined(CONFIG_PROC_DEVICETREE) +extern void proc_device_tree_add_node(struct device_node *, struct proc_dir_entry *); +extern void proc_device_tree_add_prop(struct proc_dir_entry *pde, struct property *prop); +extern void proc_device_tree_remove_prop(struct proc_dir_entry *pde, + struct property *prop); +extern void proc_device_tree_update_prop(struct proc_dir_entry *pde, + struct property *newprop, + struct property *oldprop); +#endif + #endif /* _LINUX_OF_H */ diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h index 33772248a3b1..80d9e24a79ac 100644 --- a/include/linux/proc_fs.h +++ b/include/linux/proc_fs.h @@ -70,36 +70,6 @@ struct proc_dir_entry *proc_create_data(const char *name, umode_t mode, extern void remove_proc_entry(const char *name, struct proc_dir_entry *parent); extern int remove_proc_subtree(const char *name, struct proc_dir_entry *parent); - -/* - * proc_tty.c - */ -struct tty_driver; -#ifdef CONFIG_TTY -extern void proc_tty_init(void); -#else -static inline void proc_tty_init(void) -{ } -#endif -extern void proc_tty_register_driver(struct tty_driver *driver); -extern void proc_tty_unregister_driver(struct tty_driver *driver); - -/* - * proc_devtree.c - */ -#ifdef CONFIG_PROC_DEVICETREE -struct device_node; -struct property; -extern void proc_device_tree_init(void); -extern void proc_device_tree_add_node(struct device_node *, struct proc_dir_entry *); -extern void proc_device_tree_add_prop(struct proc_dir_entry *pde, struct property *prop); -extern void proc_device_tree_remove_prop(struct proc_dir_entry *pde, - struct property *prop); -extern void proc_device_tree_update_prop(struct proc_dir_entry *pde, - struct property *newprop, - struct property *oldprop); -#endif /* CONFIG_PROC_DEVICETREE */ - extern struct proc_dir_entry *proc_symlink(const char *, struct proc_dir_entry *, const char *); extern struct proc_dir_entry *proc_mkdir(const char *,struct proc_dir_entry *); @@ -143,10 +113,6 @@ static inline struct proc_dir_entry *proc_mkdir_mode(const char *name, static inline void proc_set_size(struct proc_dir_entry *de, loff_t size) {} static inline void proc_set_user(struct proc_dir_entry *de, kuid_t uid, kgid_t gid) {} -struct tty_driver; -static inline void proc_tty_register_driver(struct tty_driver *driver) {}; -static inline void proc_tty_unregister_driver(struct tty_driver *driver) {}; - #endif /* CONFIG_PROC_FS */ @@ -187,7 +153,4 @@ static inline void *PDE_DATA(const struct inode *inode) return PROC_I(inode)->pde->data; } -#include - -void render_sigset_t(struct seq_file *m, const char *header, sigset_t *set); #endif /* _LINUX_PROC_FS_H */ diff --git a/include/linux/signal.h b/include/linux/signal.h index a2dcb94ea49d..1135e3696e81 100644 --- a/include/linux/signal.h +++ b/include/linux/signal.h @@ -434,4 +434,9 @@ void signals_init(void); int restore_altstack(const stack_t __user *); int __save_altstack(stack_t __user *, unsigned long); +#ifdef CONFIG_PROC_FS +struct seq_file; +extern void render_sigset_t(struct seq_file *, const char *, sigset_t *); +#endif + #endif /* _LINUX_SIGNAL_H */ diff --git a/include/linux/tty.h b/include/linux/tty.h index c75d886b0307..e014fb1a84bd 100644 --- a/include/linux/tty.h +++ b/include/linux/tty.h @@ -658,5 +658,12 @@ do { \ finish_wait(&wq, &__wait); \ } while (0) +#ifdef CONFIG_PROC_FS +extern void proc_tty_register_driver(struct tty_driver *); +extern void proc_tty_unregister_driver(struct tty_driver *); +#else +static inline void proc_tty_register_driver(struct tty_driver *d) {} +static inline void proc_tty_unregister_driver(struct tty_driver *d) {} +#endif #endif From 270b5ac2151707c25d3327722c5badfbd95945bc Mon Sep 17 00:00:00 2001 From: David Howells Date: Fri, 12 Apr 2013 02:48:30 +0100 Subject: [PATCH 187/204] proc: Add proc_mkdir_data() Add proc_mkdir_data() to allow procfs directories to be created that are annotated at the time of creation with private data rather than doing this post-creation. This means no access is then required to the proc_dir_entry struct to set this. Signed-off-by: David Howells Acked-by: Mauro Carvalho Chehab Acked-by: Greg Kroah-Hartman cc: Neela Syam Kolli cc: Jerry Chuang cc: linux-scsi@vger.kernel.org cc: devel@driverdev.osuosl.org cc: linux-wireless@vger.kernel.org Signed-off-by: Al Viro --- drivers/message/i2o/i2o_proc.c | 8 ++---- drivers/scsi/megaraid.c | 4 +-- drivers/staging/rtl8192u/r8192U_core.c | 3 +-- fs/proc/generic.c | 34 +++++++++++--------------- fs/reiserfs/procfs.c | 3 +-- include/linux/proc_fs.h | 13 +++++++--- 6 files changed, 30 insertions(+), 35 deletions(-) diff --git a/drivers/message/i2o/i2o_proc.c b/drivers/message/i2o/i2o_proc.c index 70a840f9b283..b7d87cd227a9 100644 --- a/drivers/message/i2o/i2o_proc.c +++ b/drivers/message/i2o/i2o_proc.c @@ -1913,14 +1913,12 @@ static void i2o_proc_device_add(struct proc_dir_entry *dir, osm_debug("adding device /proc/i2o/%s/%s\n", dev->iop->name, buff); - devdir = proc_mkdir(buff, dir); + devdir = proc_mkdir_data(buff, 0, dir, dev); if (!devdir) { osm_warn("Could not allocate procdir!\n"); return; } - devdir->data = dev; - i2o_proc_create_entries(devdir, generic_dev_entries, dev); /* Inform core that we want updates about this device's status */ @@ -1954,12 +1952,10 @@ static int i2o_proc_iop_add(struct proc_dir_entry *dir, osm_debug("adding IOP /proc/i2o/%s\n", c->name); - iopdir = proc_mkdir(c->name, dir); + iopdir = proc_mkdir_data(c->name, 0, dir, c); if (!iopdir) return -1; - iopdir->data = c; - i2o_proc_create_entries(iopdir, i2o_proc_generic_iop_entries, c); list_for_each_entry(dev, &c->devices, list) diff --git a/drivers/scsi/megaraid.c b/drivers/scsi/megaraid.c index a1c90bd34e78..ef3384d39e11 100644 --- a/drivers/scsi/megaraid.c +++ b/drivers/scsi/megaraid.c @@ -2818,12 +2818,12 @@ mega_create_proc_entry(int index, struct proc_dir_entry *parent) sprintf(string, "hba%d", adapter->host->host_no); - dir = adapter->controller_proc_dir_entry = proc_mkdir(string, parent); + dir = adapter->controller_proc_dir_entry = + proc_mkdir_data(string, 0, parent, adapter); if(!dir) { printk(KERN_WARNING "\nmegaraid: proc_mkdir failed\n"); return; } - dir->data = adapter; for (f = mega_proc_files; f->name; f++) { de = proc_create_data(f->name, S_IRUSR, dir, &mega_proc_fops, diff --git a/drivers/staging/rtl8192u/r8192U_core.c b/drivers/staging/rtl8192u/r8192U_core.c index 433c3df95de0..d81d7d55f25e 100644 --- a/drivers/staging/rtl8192u/r8192U_core.c +++ b/drivers/staging/rtl8192u/r8192U_core.c @@ -672,13 +672,12 @@ void rtl8192_proc_init_one(struct net_device *dev) struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); if (rtl8192_proc) { - priv->dir_dev = proc_mkdir(dev->name, rtl8192_proc); + priv->dir_dev = proc_mkdir_data(dev->name, 0, rtl8192_proc, dev); if (!priv->dir_dev) { RT_TRACE(COMP_ERR, "Unable to initialize /proc/net/rtl8192/%s\n", dev->name); return; } - priv->dir_dev->data = dev; for (f = rtl8192_proc_files; f->name[0]; f++) { if (!proc_create_data(f->name, S_IFREG | S_IRUGO, diff --git a/fs/proc/generic.c b/fs/proc/generic.c index 5f6f6c38701f..4074da57c99e 100644 --- a/fs/proc/generic.c +++ b/fs/proc/generic.c @@ -428,13 +428,17 @@ struct proc_dir_entry *proc_symlink(const char *name, } EXPORT_SYMBOL(proc_symlink); -struct proc_dir_entry *proc_mkdir_mode(const char *name, umode_t mode, - struct proc_dir_entry *parent) +struct proc_dir_entry *proc_mkdir_data(const char *name, umode_t mode, + struct proc_dir_entry *parent, void *data) { struct proc_dir_entry *ent; + if (mode == 0) + mode = S_IRUGO | S_IXUGO; + ent = __proc_create(&parent, name, S_IFDIR | mode, 2); if (ent) { + ent->data = data; if (proc_register(parent, ent) < 0) { kfree(ent); ent = NULL; @@ -442,29 +446,19 @@ struct proc_dir_entry *proc_mkdir_mode(const char *name, umode_t mode, } return ent; } +EXPORT_SYMBOL_GPL(proc_mkdir_data); + +struct proc_dir_entry *proc_mkdir_mode(const char *name, umode_t mode, + struct proc_dir_entry *parent) +{ + return proc_mkdir_data(name, mode, parent, NULL); +} EXPORT_SYMBOL(proc_mkdir_mode); -struct proc_dir_entry *proc_net_mkdir(struct net *net, const char *name, - struct proc_dir_entry *parent) -{ - struct proc_dir_entry *ent; - - ent = __proc_create(&parent, name, S_IFDIR | S_IRUGO | S_IXUGO, 2); - if (ent) { - ent->data = net; - if (proc_register(parent, ent) < 0) { - kfree(ent); - ent = NULL; - } - } - return ent; -} -EXPORT_SYMBOL_GPL(proc_net_mkdir); - struct proc_dir_entry *proc_mkdir(const char *name, struct proc_dir_entry *parent) { - return proc_mkdir_mode(name, S_IRUGO | S_IXUGO, parent); + return proc_mkdir_data(name, 0, parent, NULL); } EXPORT_SYMBOL(proc_mkdir); diff --git a/fs/reiserfs/procfs.c b/fs/reiserfs/procfs.c index 274adea363ff..07c2162ef556 100644 --- a/fs/reiserfs/procfs.c +++ b/fs/reiserfs/procfs.c @@ -479,9 +479,8 @@ int reiserfs_proc_info_init(struct super_block *sb) *s = '!'; spin_lock_init(&__PINFO(sb).lock); - REISERFS_SB(sb)->procdir = proc_mkdir(b, proc_info_root); + REISERFS_SB(sb)->procdir = proc_mkdir_data(b, 0, proc_info_root, sb); if (REISERFS_SB(sb)->procdir) { - REISERFS_SB(sb)->procdir->data = sb; add_file(sb, "version", show_version); add_file(sb, "super", show_super); add_file(sb, "per-level", show_per_level); diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h index 80d9e24a79ac..a0fb1c2f1d8e 100644 --- a/include/linux/proc_fs.h +++ b/include/linux/proc_fs.h @@ -73,6 +73,8 @@ extern int remove_proc_subtree(const char *name, struct proc_dir_entry *parent); extern struct proc_dir_entry *proc_symlink(const char *, struct proc_dir_entry *, const char *); extern struct proc_dir_entry *proc_mkdir(const char *,struct proc_dir_entry *); +extern struct proc_dir_entry *proc_mkdir_data(const char *, umode_t, + struct proc_dir_entry *, void *); extern struct proc_dir_entry *proc_mkdir_mode(const char *name, umode_t mode, struct proc_dir_entry *parent); @@ -82,9 +84,6 @@ static inline struct proc_dir_entry *proc_create(const char *name, umode_t mode, return proc_create_data(name, mode, parent, proc_fops, NULL); } -extern struct proc_dir_entry *proc_net_mkdir(struct net *net, const char *name, - struct proc_dir_entry *parent); - extern void proc_set_size(struct proc_dir_entry *, loff_t); extern void proc_set_user(struct proc_dir_entry *, kuid_t, kgid_t); #else @@ -108,6 +107,8 @@ static inline struct proc_dir_entry *proc_symlink(const char *name, struct proc_dir_entry *parent,const char *dest) {return NULL;} static inline struct proc_dir_entry *proc_mkdir(const char *name, struct proc_dir_entry *parent) {return NULL;} +static inline struct proc_dir_entry *proc_mkdir_data(const char *name, + umode_t mode, struct proc_dir_entry *parent, void *data) { return NULL; } static inline struct proc_dir_entry *proc_mkdir_mode(const char *name, umode_t mode, struct proc_dir_entry *parent) { return NULL; } static inline void proc_set_size(struct proc_dir_entry *de, loff_t size) {} @@ -153,4 +154,10 @@ static inline void *PDE_DATA(const struct inode *inode) return PROC_I(inode)->pde->data; } +static inline struct proc_dir_entry *proc_net_mkdir( + struct net *net, const char *name, struct proc_dir_entry *parent) +{ + return proc_mkdir_data(name, 0, parent, net); +} + #endif /* _LINUX_PROC_FS_H */ From c4558a26ff661b5299942ce2b735f3cab4aed1e5 Mon Sep 17 00:00:00 2001 From: David Howells Date: Fri, 12 Apr 2013 02:59:48 +0100 Subject: [PATCH 188/204] rtl8187se: Use a dir under /proc/net/r8180/ Create a dir under /proc/net/r8180/ named for the device and create that device's files under there. This means that there won't be a problem for multiple devices in the system (if such is possible) and it means we don't need to save the 'device directory' PDE any more as we can just do a proc subtree removal. Signed-off-by: David Howells Acked-by: Greg Kroah-Hartman cc: Maxim Mikityanskiy cc: YAMANE Toshiaki cc: linux-wireless@vger.kernel.org cc: devel@driverdev.osuosl.org Signed-off-by: Al Viro --- drivers/staging/rtl8187se/r8180.h | 1 - drivers/staging/rtl8187se/r8180_core.c | 26 ++++++++------------------ 2 files changed, 8 insertions(+), 19 deletions(-) diff --git a/drivers/staging/rtl8187se/r8180.h b/drivers/staging/rtl8187se/r8180.h index 70ea4145b4c8..edacc8001640 100644 --- a/drivers/staging/rtl8187se/r8180.h +++ b/drivers/staging/rtl8187se/r8180.h @@ -372,7 +372,6 @@ typedef struct r8180_priv struct Stats stats; struct _link_detect_t link_detect; //YJ,add,080828 struct iw_statistics wstats; - struct proc_dir_entry *dir_dev; /*RX stuff*/ u32 *rxring; diff --git a/drivers/staging/rtl8187se/r8180_core.c b/drivers/staging/rtl8187se/r8180_core.c index 448da77e2cd1..ab469ceae88c 100644 --- a/drivers/staging/rtl8187se/r8180_core.c +++ b/drivers/staging/rtl8187se/r8180_core.c @@ -288,14 +288,7 @@ void rtl8180_proc_module_remove(void) void rtl8180_proc_remove_one(struct net_device *dev) { - struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev); - if (priv->dir_dev) { - remove_proc_entry("stats-hw", priv->dir_dev); - remove_proc_entry("stats-tx", priv->dir_dev); - remove_proc_entry("stats-rx", priv->dir_dev); - remove_proc_entry("registers", priv->dir_dev); - priv->dir_dev = NULL; - } + remove_proc_subtree(dev->name, rtl8180_proc); } /* @@ -335,22 +328,19 @@ static const struct rtl8180_proc_file rtl8180_proc_files[] = { void rtl8180_proc_init_one(struct net_device *dev) { const struct rtl8180_proc_file *f; - struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev); + struct proc_dir_entry *dir; - priv->dir_dev = rtl8180_proc; - if (!priv->dir_dev) { - DMESGE("Unable to initialize /proc/net/r8180/%s\n", - dev->name); + dir = proc_mkdir_data(dev->name, 0, rtl8180_proc, dev); + if (!dir) { + DMESGE("Unable to initialize /proc/net/r8180/%s\n", dev->name); return; } - priv->dir_dev->data = dev; for (f = rtl8180_proc_files; f->name[0]; f++) { - if (!proc_create_data(f->name, S_IFREG | S_IRUGO, - priv->dir_dev, + if (!proc_create_data(f->name, S_IFREG | S_IRUGO, dir, &rtl8180_proc_fops, f->show)) { - DMESGE("Unable to initialize /proc/net/r8180/%s\n", - f->name); + DMESGE("Unable to initialize /proc/net/r8180/%s/%s\n", + dev->name, f->name); return; } } From cc87e0fff1e639c4c7832075b8cdd89ab30d2a1f Mon Sep 17 00:00:00 2001 From: David Howells Date: Fri, 12 Apr 2013 03:02:22 +0100 Subject: [PATCH 189/204] rtl8192u: Don't need to save device proc dir PDE Don't need to save the PDE of a directory created under /proc/net/rtl8192/ as we can use proc subtree deletion to get rid of it and all its children. Signed-off-by: David Howells Acked-by: Mauro Carvalho Chehab Acked-by: Greg Kroah-Hartman cc: Jerry Chuang cc: linux-wireless@vger.kernel.org cc: devel@driverdev.osuosl.org Signed-off-by: Al Viro --- drivers/staging/rtl8192u/r8192U.h | 1 - drivers/staging/rtl8192u/r8192U_core.c | 18 ++++++------------ 2 files changed, 6 insertions(+), 13 deletions(-) diff --git a/drivers/staging/rtl8192u/r8192U.h b/drivers/staging/rtl8192u/r8192U.h index e538e026b512..bedeb330ad4f 100644 --- a/drivers/staging/rtl8192u/r8192U.h +++ b/drivers/staging/rtl8192u/r8192U.h @@ -946,7 +946,6 @@ typedef struct r8192_priv { /*stats*/ struct Stats stats; struct iw_statistics wstats; - struct proc_dir_entry *dir_dev; /*RX stuff*/ // u32 *rxring; diff --git a/drivers/staging/rtl8192u/r8192U_core.c b/drivers/staging/rtl8192u/r8192U_core.c index d81d7d55f25e..27ba2a3111d2 100644 --- a/drivers/staging/rtl8192u/r8192U_core.c +++ b/drivers/staging/rtl8192u/r8192U_core.c @@ -669,20 +669,19 @@ static const struct rtl8192_proc_file rtl8192_proc_files[] = { void rtl8192_proc_init_one(struct net_device *dev) { const struct rtl8192_proc_file *f; - struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); + struct proc_dir_entry *dir; if (rtl8192_proc) { - priv->dir_dev = proc_mkdir_data(dev->name, 0, rtl8192_proc, dev); - if (!priv->dir_dev) { + dir = proc_mkdir_data(dev->name, 0, rtl8192_proc, dev); + if (!dir) { RT_TRACE(COMP_ERR, "Unable to initialize /proc/net/rtl8192/%s\n", dev->name); return; } for (f = rtl8192_proc_files; f->name[0]; f++) { - if (!proc_create_data(f->name, S_IFREG | S_IRUGO, - priv->dir_dev, - rtl8192_proc_fops, f->show)) { + if (!proc_create_data(f->name, S_IFREG | S_IRUGO, dir, + &rtl8192_proc_fops, f->show)) { RT_TRACE(COMP_ERR, "Unable to initialize " "/proc/net/rtl8192/%s/%s\n", dev->name, f->name); @@ -694,12 +693,7 @@ void rtl8192_proc_init_one(struct net_device *dev) void rtl8192_proc_remove_one(struct net_device *dev) { - struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); - - if (priv->dir_dev) { - remove_proc_subtree(dev->name, rtl8192_proc); - priv->dir_dev = NULL; - } + remove_proc_subtree(dev->name, rtl8192_proc); } /**************************************************************************** From b25f774d889e3856c6d81ffc679912f8bdef6adc Mon Sep 17 00:00:00 2001 From: David Howells Date: Fri, 12 Apr 2013 03:05:20 +0100 Subject: [PATCH 190/204] airo: Use remove_proc_subtree() Use remove_proc_subtree() to remove the airo device subdir and all its children instead of doing it manually. Signed-off-by: David Howells cc: linux-wireless@vger.kernel.org Signed-off-by: Al Viro --- drivers/net/wireless/airo.c | 49 ++++++++++--------------------------- 1 file changed, 13 insertions(+), 36 deletions(-) diff --git a/drivers/net/wireless/airo.c b/drivers/net/wireless/airo.c index 21d02335b46f..6125adb520a3 100644 --- a/drivers/net/wireless/airo.c +++ b/drivers/net/wireless/airo.c @@ -4506,98 +4506,75 @@ static int setup_proc_entry( struct net_device *dev, apriv->proc_entry = proc_mkdir_mode(apriv->proc_name, airo_perm, airo_entry); if (!apriv->proc_entry) - goto fail; + return -ENOMEM; proc_set_user(apriv->proc_entry, proc_kuid, proc_kgid); /* Setup the StatsDelta */ entry = proc_create_data("StatsDelta", S_IRUGO & proc_perm, apriv->proc_entry, &proc_statsdelta_ops, dev); if (!entry) - goto fail_stats_delta; + goto fail; proc_set_user(entry, proc_kuid, proc_kgid); /* Setup the Stats */ entry = proc_create_data("Stats", S_IRUGO & proc_perm, apriv->proc_entry, &proc_stats_ops, dev); if (!entry) - goto fail_stats; + goto fail; proc_set_user(entry, proc_kuid, proc_kgid); /* Setup the Status */ entry = proc_create_data("Status", S_IRUGO & proc_perm, apriv->proc_entry, &proc_status_ops, dev); if (!entry) - goto fail_status; + goto fail; proc_set_user(entry, proc_kuid, proc_kgid); /* Setup the Config */ entry = proc_create_data("Config", proc_perm, apriv->proc_entry, &proc_config_ops, dev); if (!entry) - goto fail_config; + goto fail; proc_set_user(entry, proc_kuid, proc_kgid); /* Setup the SSID */ entry = proc_create_data("SSID", proc_perm, apriv->proc_entry, &proc_SSID_ops, dev); if (!entry) - goto fail_ssid; + goto fail; proc_set_user(entry, proc_kuid, proc_kgid); /* Setup the APList */ entry = proc_create_data("APList", proc_perm, apriv->proc_entry, &proc_APList_ops, dev); if (!entry) - goto fail_aplist; + goto fail; proc_set_user(entry, proc_kuid, proc_kgid); /* Setup the BSSList */ entry = proc_create_data("BSSList", proc_perm, apriv->proc_entry, &proc_BSSList_ops, dev); if (!entry) - goto fail_bsslist; + goto fail; proc_set_user(entry, proc_kuid, proc_kgid); /* Setup the WepKey */ entry = proc_create_data("WepKey", proc_perm, apriv->proc_entry, &proc_wepkey_ops, dev); if (!entry) - goto fail_wepkey; + goto fail; proc_set_user(entry, proc_kuid, proc_kgid); return 0; -fail_wepkey: - remove_proc_entry("BSSList", apriv->proc_entry); -fail_bsslist: - remove_proc_entry("APList", apriv->proc_entry); -fail_aplist: - remove_proc_entry("SSID", apriv->proc_entry); -fail_ssid: - remove_proc_entry("Config", apriv->proc_entry); -fail_config: - remove_proc_entry("Status", apriv->proc_entry); -fail_status: - remove_proc_entry("Stats", apriv->proc_entry); -fail_stats: - remove_proc_entry("StatsDelta", apriv->proc_entry); -fail_stats_delta: - remove_proc_entry(apriv->proc_name, airo_entry); fail: + remove_proc_subtree(apriv->proc_name, airo_entry); return -ENOMEM; } static int takedown_proc_entry( struct net_device *dev, - struct airo_info *apriv ) { - if ( !apriv->proc_entry->namelen ) return 0; - remove_proc_entry("Stats",apriv->proc_entry); - remove_proc_entry("StatsDelta",apriv->proc_entry); - remove_proc_entry("Status",apriv->proc_entry); - remove_proc_entry("Config",apriv->proc_entry); - remove_proc_entry("SSID",apriv->proc_entry); - remove_proc_entry("APList",apriv->proc_entry); - remove_proc_entry("BSSList",apriv->proc_entry); - remove_proc_entry("WepKey",apriv->proc_entry); - remove_proc_entry(apriv->proc_name,airo_entry); + struct airo_info *apriv ) +{ + remove_proc_subtree(apriv->proc_name, airo_entry); return 0; } From 4a520d2769beb736ba2bd084b8293ce148a1a7ae Mon Sep 17 00:00:00 2001 From: David Howells Date: Fri, 12 Apr 2013 14:06:01 +0100 Subject: [PATCH 191/204] proc: Supply an accessor for getting the data from a PDE's parent Supply an accessor function for getting the private data from the parent proc_dir_entry struct of the proc_dir_entry struct associated with an inode. ReiserFS, for instance, stores the super_block pointer in the proc directory it makes for that super_block, and a pointer to the respective seq_file show function in each of the proc files in that directory. This allows a reduction in the number of file_operations structs, open functions and seq_operations structs required. The problem otherwise is that each show function requires two pieces of data but only has storage for one per PDE (and this has no release function). Signed-off-by: David Howells Acked-by: Mauro Carvalho Chehab Acked-by: Greg Kroah-Hartman cc: Jerry Chuang cc: Maxim Mikityanskiy cc: YAMANE Toshiaki cc: linux-wireless@vger.kernel.org cc: linux-scsi@vger.kernel.org cc: devel@driverdev.osuosl.org Signed-off-by: Al Viro --- drivers/scsi/megaraid.c | 2 +- drivers/staging/rtl8187se/r8180_core.c | 2 +- drivers/staging/rtl8192u/r8192U_core.c | 2 +- fs/proc/generic.c | 7 +++++++ include/linux/proc_fs.h | 1 + 5 files changed, 11 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/megaraid.c b/drivers/scsi/megaraid.c index ef3384d39e11..7373255aa1e8 100644 --- a/drivers/scsi/megaraid.c +++ b/drivers/scsi/megaraid.c @@ -2760,7 +2760,7 @@ proc_show_rdrv_40(struct seq_file *m, void *v) */ static int mega_proc_open(struct inode *inode, struct file *file) { - adapter_t *adapter = PDE(inode)->parent->data; + adapter_t *adapter = proc_get_parent_data(inode); int (*show)(struct seq_file *, void *) = PDE_DATA(inode); return single_open(file, show, adapter); diff --git a/drivers/staging/rtl8187se/r8180_core.c b/drivers/staging/rtl8187se/r8180_core.c index ab469ceae88c..f7c1d9905ec6 100644 --- a/drivers/staging/rtl8187se/r8180_core.c +++ b/drivers/staging/rtl8187se/r8180_core.c @@ -296,7 +296,7 @@ void rtl8180_proc_remove_one(struct net_device *dev) */ static int rtl8180_proc_open(struct inode *inode, struct file *file) { - struct net_device *dev = PDE(inode)->parent->data; + struct net_device *dev = proc_get_parent_data(inode); int (*show)(struct seq_file *, void *) = PDE_DATA(inode); return single_open(file, show, dev); diff --git a/drivers/staging/rtl8192u/r8192U_core.c b/drivers/staging/rtl8192u/r8192U_core.c index 27ba2a3111d2..145923397556 100644 --- a/drivers/staging/rtl8192u/r8192U_core.c +++ b/drivers/staging/rtl8192u/r8192U_core.c @@ -637,7 +637,7 @@ void rtl8192_proc_module_remove(void) */ static int rtl8192_proc_open(struct inode *inode, struct file *file) { - struct net_device *dev = PDE(inode)->parent->data; + struct net_device *dev = proc_get_parent_data(inode); int (*show)(struct seq_file *, void *) = PDE_DATA(inode); return single_open(file, show, dev); diff --git a/fs/proc/generic.c b/fs/proc/generic.c index 4074da57c99e..75e08d36b2f1 100644 --- a/fs/proc/generic.c +++ b/fs/proc/generic.c @@ -617,3 +617,10 @@ int remove_proc_subtree(const char *name, struct proc_dir_entry *parent) return 0; } EXPORT_SYMBOL(remove_proc_subtree); + +void *proc_get_parent_data(const struct inode *inode) +{ + struct proc_dir_entry *de = PDE(inode); + return de->parent->data; +} +EXPORT_SYMBOL_GPL(proc_get_parent_data); diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h index a0fb1c2f1d8e..bae820742341 100644 --- a/include/linux/proc_fs.h +++ b/include/linux/proc_fs.h @@ -86,6 +86,7 @@ static inline struct proc_dir_entry *proc_create(const char *name, umode_t mode, extern void proc_set_size(struct proc_dir_entry *, loff_t); extern void proc_set_user(struct proc_dir_entry *, kuid_t, kgid_t); +extern void *proc_get_parent_data(const struct inode *); #else static inline void proc_flush_task(struct task_struct *task) From e42270a19e357d7808890bdbeb0cae97f2a2d234 Mon Sep 17 00:00:00 2001 From: David Howells Date: Fri, 12 Apr 2013 11:17:06 +0100 Subject: [PATCH 192/204] reiserfs: Don't access the proc_dir_entry in r_open(), r_start() r_show() Don't access the proc_dir_entry in ReiserFS's r_open(), r_start() r_show() procfs interface functions. ReiserFS stores the ->show() method pointer in PDE->data and the super_block pointer in PDE->parent->data. This isn't changing. Currently, ReiserFS passes the PDE pointer into seq_file::private from r_open() so that r_start() and r_show() can then access it. Instead, use seq_open_private() to allocate a two-pointer struct that's passed through seq_file::private and put the ->show() method and the sb pointers in there. Signed-off-by: David Howells cc: reiserfs-devel@vger.kernel.org Signed-off-by: Al Viro --- fs/reiserfs/procfs.c | 29 ++++++++++++++++++----------- 1 file changed, 18 insertions(+), 11 deletions(-) diff --git a/fs/reiserfs/procfs.c b/fs/reiserfs/procfs.c index 07c2162ef556..33532f79b4f7 100644 --- a/fs/reiserfs/procfs.c +++ b/fs/reiserfs/procfs.c @@ -394,20 +394,24 @@ static int set_sb(struct super_block *sb, void *data) return -ENOENT; } +struct reiserfs_seq_private { + struct super_block *sb; + int (*show) (struct seq_file *, struct super_block *); +}; + static void *r_start(struct seq_file *m, loff_t * pos) { - struct proc_dir_entry *de = m->private; - struct super_block *s = de->parent->data; + struct reiserfs_seq_private *priv = m->private; loff_t l = *pos; if (l) return NULL; - if (IS_ERR(sget(&reiserfs_fs_type, test_sb, set_sb, 0, s))) + if (IS_ERR(sget(&reiserfs_fs_type, test_sb, set_sb, 0, priv->sb))) return NULL; - up_write(&s->s_umount); - return s; + up_write(&priv->sb->s_umount); + return priv->sb; } static void *r_next(struct seq_file *m, void *v, loff_t * pos) @@ -426,9 +430,8 @@ static void r_stop(struct seq_file *m, void *v) static int r_show(struct seq_file *m, void *v) { - struct proc_dir_entry *de = m->private; - int (*show) (struct seq_file *, struct super_block *) = de->data; - return show(m, v); + struct reiserfs_seq_private *priv = m->private; + return priv->show(m, v); } static const struct seq_operations r_ops = { @@ -440,11 +443,15 @@ static const struct seq_operations r_ops = { static int r_open(struct inode *inode, struct file *file) { - int ret = seq_open(file, &r_ops); + struct reiserfs_seq_private *priv; + int ret = seq_open_private(file, &r_ops, + sizeof(struct reiserfs_seq_private)); if (!ret) { struct seq_file *m = file->private_data; - m->private = PDE(inode); + priv = m->private; + priv->sb = proc_get_parent_data(inode); + priv->show = PDE_DATA(inode); } return ret; } @@ -453,7 +460,7 @@ static const struct file_operations r_file_operations = { .open = r_open, .read = seq_read, .llseek = seq_lseek, - .release = seq_release, + .release = seq_release_private, .owner = THIS_MODULE, }; From 0c2f343825192044ffaf542854d478e00f7f0a59 Mon Sep 17 00:00:00 2001 From: David Howells Date: Fri, 12 Apr 2013 15:18:25 +0100 Subject: [PATCH 193/204] zoran: Don't print proc_dir_entry data in debug Don't print proc_dir_entry data in debug as we're soon to have no direct access to the contents of the PDE. Print what was put in there instead. Signed-off-by: David Howells cc: mjpeg-users@lists.sourceforge.net cc: linux-media@vger.kernel.org Signed-off-by: Al Viro --- drivers/media/pci/zoran/zoran_procfs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/pci/zoran/zoran_procfs.c b/drivers/media/pci/zoran/zoran_procfs.c index 07a104d2bd1d..f7ceee0cdefd 100644 --- a/drivers/media/pci/zoran/zoran_procfs.c +++ b/drivers/media/pci/zoran/zoran_procfs.c @@ -201,7 +201,7 @@ zoran_proc_init (struct zoran *zr) dprintk(2, KERN_INFO "%s: procfs entry /proc/%s allocated. data=%p\n", - ZR_DEVNAME(zr), name, zr->zoran_proc->data); + ZR_DEVNAME(zr), name, zr); } else { dprintk(1, KERN_ERR "%s: Unable to initialise /proc/%s\n", ZR_DEVNAME(zr), name); From ce089b5472f7d0321bcb2cbc22d85bac15e4778b Mon Sep 17 00:00:00 2001 From: David Howells Date: Fri, 12 Apr 2013 15:23:25 +0100 Subject: [PATCH 194/204] drm: Constify drm_proc_list[] Constify drm_proc_list[] and related pointers. Signed-off-by: David Howells cc: dri-devel@lists.freedesktop.org Signed-off-by: Al Viro --- drivers/gpu/drm/drm_proc.c | 6 +++--- include/drm/drmP.h | 2 +- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/drm_proc.c b/drivers/gpu/drm/drm_proc.c index e06431897f4e..aead653c1833 100644 --- a/drivers/gpu/drm/drm_proc.c +++ b/drivers/gpu/drm/drm_proc.c @@ -49,7 +49,7 @@ /** * Proc file list. */ -static struct drm_info_list drm_proc_list[] = { +static const struct drm_info_list drm_proc_list[] = { {"name", drm_name_info, 0}, {"vm", drm_vm_info, 0}, {"clients", drm_clients_info, 0}, @@ -89,7 +89,7 @@ static const struct file_operations drm_proc_fops = { * Create a given set of proc files represented by an array of * gdm_proc_lists in the given root directory. */ -static int drm_proc_create_files(struct drm_info_list *files, int count, +static int drm_proc_create_files(const struct drm_info_list *files, int count, struct proc_dir_entry *root, struct drm_minor *minor) { struct drm_device *dev = minor->dev; @@ -172,7 +172,7 @@ int drm_proc_init(struct drm_minor *minor, int minor_id, return 0; } -static int drm_proc_remove_files(struct drm_info_list *files, int count, +static int drm_proc_remove_files(const struct drm_info_list *files, int count, struct drm_minor *minor) { struct list_head *pos, *q; diff --git a/include/drm/drmP.h b/include/drm/drmP.h index 2d94d7413d71..af5332059328 100644 --- a/include/drm/drmP.h +++ b/include/drm/drmP.h @@ -1022,7 +1022,7 @@ struct drm_info_list { struct drm_info_node { struct list_head list; struct drm_minor *minor; - struct drm_info_list *info_ent; + const struct drm_info_list *info_ent; struct dentry *dent; }; From b63e6aa5028dfde3b360945564290de28b47c2d7 Mon Sep 17 00:00:00 2001 From: David Howells Date: Fri, 12 Apr 2013 15:34:31 +0100 Subject: [PATCH 195/204] drm: proc: Use minor->index to label things, not PDE->name Use minor->index to label things, not the name field from the proc_dir_entry of the /proc/dwm// directory. Also, use "%u" not "%d" to render the value and use a 12-byte buffer in which to render the integer, not a 16-byte buffer. The longest string an unsigned int can give you is 10 chars (4294967295) plus a NUL, so round up to 12 as the stack is likely to be 4- or 8-byte aligned. Signed-off-by: David Howells cc: dri-devel@lists.freedesktop.org Signed-off-by: Al Viro --- drivers/gpu/drm/drm_proc.c | 13 +++++-------- drivers/gpu/drm/drm_stub.c | 2 +- include/drm/drmP.h | 3 +-- 3 files changed, 7 insertions(+), 11 deletions(-) diff --git a/drivers/gpu/drm/drm_proc.c b/drivers/gpu/drm/drm_proc.c index aead653c1833..0646a462d4c7 100644 --- a/drivers/gpu/drm/drm_proc.c +++ b/drivers/gpu/drm/drm_proc.c @@ -116,14 +116,13 @@ static int drm_proc_create_files(const struct drm_info_list *files, int count, ent = proc_create_data(files[i].name, S_IRUGO, root, &drm_proc_fops, tmp); if (!ent) { - DRM_ERROR("Cannot create /proc/dri/%s/%s\n", - root->name, files[i].name); + DRM_ERROR("Cannot create /proc/dri/%u/%s\n", + minor->index, files[i].name); list_del(&tmp->list); kfree(tmp); ret = -1; goto fail; } - } return 0; @@ -137,7 +136,6 @@ static int drm_proc_create_files(const struct drm_info_list *files, int count, * Initialize the DRI proc filesystem for a device * * \param dev DRM device - * \param minor device minor number * \param root DRI proc dir entry. * \param dev_root resulting DRI device proc dir entry. * \return root entry pointer on success, or NULL on failure. @@ -146,14 +144,13 @@ static int drm_proc_create_files(const struct drm_info_list *files, int count, * "/proc/dri/%minor%/", and each entry in proc_list as * "/proc/dri/%minor%/%name%". */ -int drm_proc_init(struct drm_minor *minor, int minor_id, - struct proc_dir_entry *root) +int drm_proc_init(struct drm_minor *minor, struct proc_dir_entry *root) { - char name[64]; + char name[12]; int ret; INIT_LIST_HEAD(&minor->proc_nodes.list); - sprintf(name, "%d", minor_id); + sprintf(name, "%u", minor->index); minor->proc_root = proc_mkdir(name, root); if (!minor->proc_root) { DRM_ERROR("Cannot create /proc/dri/%s\n", name); diff --git a/drivers/gpu/drm/drm_stub.c b/drivers/gpu/drm/drm_stub.c index 7d30802a018f..16f3ec579b3b 100644 --- a/drivers/gpu/drm/drm_stub.c +++ b/drivers/gpu/drm/drm_stub.c @@ -352,7 +352,7 @@ int drm_get_minor(struct drm_device *dev, struct drm_minor **minor, int type) idr_replace(&drm_minors_idr, new_minor, minor_id); if (type == DRM_MINOR_LEGACY) { - ret = drm_proc_init(new_minor, minor_id, drm_proc_root); + ret = drm_proc_init(new_minor, drm_proc_root); if (ret) { DRM_ERROR("DRM: Failed to initialize /proc/dri.\n"); goto err_mem; diff --git a/include/drm/drmP.h b/include/drm/drmP.h index af5332059328..60c33f14408f 100644 --- a/include/drm/drmP.h +++ b/include/drm/drmP.h @@ -1546,8 +1546,7 @@ extern struct idr drm_minors_idr; extern struct drm_local_map *drm_getsarea(struct drm_device *dev); /* Proc support (drm_proc.h) */ -extern int drm_proc_init(struct drm_minor *minor, int minor_id, - struct proc_dir_entry *root); +extern int drm_proc_init(struct drm_minor *minor, struct proc_dir_entry *root); extern int drm_proc_cleanup(struct drm_minor *minor, struct proc_dir_entry *root); /* Debugfs support */ From 8bc742e13fb2c9cd64988816749295e9ddf53101 Mon Sep 17 00:00:00 2001 From: David Howells Date: Fri, 12 Apr 2013 16:15:07 +0100 Subject: [PATCH 196/204] drm: proc: Use remove_proc_subtree() Use remove_proc_subtree() rather than remove_proc_entry() to remove a minor-specific drm proc directory and all its children. Things could theoretically be improved by storing the drm_minor pointer in the minor-specific dir proc_dir_entry struct data and then scrapping the list of proc files - but that's shared with the debugfs interface where you can't do that, so I don't see an easy way of doing it. Signed-off-by: David Howells cc: dri-devel@lists.freedesktop.org Signed-off-by: Al Viro --- drivers/gpu/drm/drm_proc.c | 22 +++++++--------------- 1 file changed, 7 insertions(+), 15 deletions(-) diff --git a/drivers/gpu/drm/drm_proc.c b/drivers/gpu/drm/drm_proc.c index 0646a462d4c7..d7f2324b4fb1 100644 --- a/drivers/gpu/drm/drm_proc.c +++ b/drivers/gpu/drm/drm_proc.c @@ -95,7 +95,7 @@ static int drm_proc_create_files(const struct drm_info_list *files, int count, struct drm_device *dev = minor->dev; struct proc_dir_entry *ent; struct drm_info_node *tmp; - int i, ret; + int i; for (i = 0; i < count; i++) { u32 features = files[i].driver_features; @@ -105,10 +105,9 @@ static int drm_proc_create_files(const struct drm_info_list *files, int count, continue; tmp = kmalloc(sizeof(struct drm_info_node), GFP_KERNEL); - if (tmp == NULL) { - ret = -1; - goto fail; - } + if (!tmp) + return -1; + tmp->minor = minor; tmp->info_ent = &files[i]; list_add(&tmp->list, &minor->proc_nodes.list); @@ -120,16 +119,10 @@ static int drm_proc_create_files(const struct drm_info_list *files, int count, minor->index, files[i].name); list_del(&tmp->list); kfree(tmp); - ret = -1; - goto fail; + return -1; } } return 0; - -fail: - for (i = 0; i < count; i++) - remove_proc_entry(drm_proc_list[i].name, minor->proc_root); - return ret; } /** @@ -160,7 +153,7 @@ int drm_proc_init(struct drm_minor *minor, struct proc_dir_entry *root) ret = drm_proc_create_files(drm_proc_list, DRM_PROC_ENTRIES, minor->proc_root, minor); if (ret) { - remove_proc_entry(name, root); + remove_proc_subtree(name, root); minor->proc_root = NULL; DRM_ERROR("Failed to create core drm proc files\n"); return ret; @@ -210,8 +203,7 @@ int drm_proc_cleanup(struct drm_minor *minor, struct proc_dir_entry *root) drm_proc_remove_files(drm_proc_list, DRM_PROC_ENTRIES, minor); sprintf(name, "%d", minor->index); - remove_proc_entry(name, root); - + remove_proc_subtree(name, root); return 0; } From 819695abb762a625d2ef8f2a6fbf6debeec35b61 Mon Sep 17 00:00:00 2001 From: David Howells Date: Fri, 12 Apr 2013 16:20:47 +0100 Subject: [PATCH 197/204] hostap: proc: Use remove_proc_subtree() Use remove_proc_subtree() rather than remove_proc_entry() to remove a device-specific proc directory and all its children. Signed-off-by: David Howells cc: Jouni Malinen cc: Johannes Berg cc: linux-wireless@vger.kernel.org cc: devel@driverdev.osuosl.org Signed-off-by: Al Viro --- drivers/net/wireless/hostap/hostap_proc.c | 20 +------------------- 1 file changed, 1 insertion(+), 19 deletions(-) diff --git a/drivers/net/wireless/hostap/hostap_proc.c b/drivers/net/wireless/hostap/hostap_proc.c index 89292cffa764..7491dab2c105 100644 --- a/drivers/net/wireless/hostap/hostap_proc.c +++ b/drivers/net/wireless/hostap/hostap_proc.c @@ -496,25 +496,7 @@ void hostap_init_proc(local_info_t *local) void hostap_remove_proc(local_info_t *local) { - if (local->proc != NULL) { -#ifndef PRISM2_NO_STATION_MODES - remove_proc_entry("scan_results", local->proc); -#endif /* PRISM2_NO_STATION_MODES */ -#ifdef PRISM2_IO_DEBUG - remove_proc_entry("io_debug", local->proc); -#endif /* PRISM2_IO_DEBUG */ - remove_proc_entry("pda", local->proc); - remove_proc_entry("aux_dump", local->proc); - remove_proc_entry("wds", local->proc); - remove_proc_entry("stats", local->proc); - remove_proc_entry("bss_list", local->proc); - remove_proc_entry("crypt", local->proc); -#ifndef PRISM2_NO_PROCFS_DEBUG - remove_proc_entry("debug", local->proc); -#endif /* PRISM2_NO_PROCFS_DEBUG */ - if (hostap_proc != NULL) - remove_proc_entry(local->proc->name, hostap_proc); - } + remove_proc_subtree(local->ddev->name, hostap_proc); } From e8eeded3c5226fe420f9c6733cf5ada2faa3087a Mon Sep 17 00:00:00 2001 From: David Howells Date: Sat, 13 Apr 2013 00:48:49 +0100 Subject: [PATCH 198/204] ppc: Clean up rtas_flash driver somewhat Clean up some of the problems with the rtas_flash driver: (1) It shouldn't fiddle with the internals of the procfs filesystem (altering pde->count). (2) If pid namespaces are in effect, then you can get multiple inodes connected to a single pde, thereby rendering the pde->count > 2 test useless. (3) The pde->count fudging doesn't work for forked, dup'd or cloned file descriptors, so add static mutexes and use them to wrap access to the driver through read, write and release methods. (4) The driver can only handle one device, so allocate most of the data previously attached to the pde->data as static variables instead (though allocate the validation data buffer with kmalloc). (5) We don't need to save the pde pointers as long as we have the filenames available for removal. (6) Don't try to multiplex what the update file read method does based on the filename. Instead provide separate file ops and split the function. Whilst we're at it, tabulate the procfile information and loop through it when creating or destroying them rather than manually coding each one. [Folded fixes from Vasant Hegde ] Signed-off-by: David Howells cc: Benjamin Herrenschmidt cc: Paul Mackerras cc: Anton Blanchard cc: linuxppc-dev@lists.ozlabs.org Signed-off-by: Al Viro --- arch/powerpc/kernel/rtas_flash.c | 456 ++++++++++++++----------------- 1 file changed, 206 insertions(+), 250 deletions(-) diff --git a/arch/powerpc/kernel/rtas_flash.c b/arch/powerpc/kernel/rtas_flash.c index c642f0132988..5b770262c673 100644 --- a/arch/powerpc/kernel/rtas_flash.c +++ b/arch/powerpc/kernel/rtas_flash.c @@ -102,9 +102,10 @@ static struct kmem_cache *flash_block_cache = NULL; #define FLASH_BLOCK_LIST_VERSION (1UL) -/* Local copy of the flash block list. - * We only allow one open of the flash proc file and create this - * list as we go. The rtas_firmware_flash_list varable will be +/* + * Local copy of the flash block list. + * + * The rtas_firmware_flash_list varable will be * set once the data is fully read. * * For convenience as we build the list we use virtual addrs, @@ -125,23 +126,23 @@ struct rtas_update_flash_t struct rtas_manage_flash_t { int status; /* Returned status */ - unsigned int op; /* Reject or commit image */ }; /* Status int must be first member of struct */ struct rtas_validate_flash_t { int status; /* Returned status */ - char buf[VALIDATE_BUF_SIZE]; /* Candidate image buffer */ + char *buf; /* Candidate image buffer */ unsigned int buf_size; /* Size of image buf */ unsigned int update_results; /* Update results token */ }; -static DEFINE_SPINLOCK(flash_file_open_lock); -static struct proc_dir_entry *firmware_flash_pde; -static struct proc_dir_entry *firmware_update_pde; -static struct proc_dir_entry *validate_pde; -static struct proc_dir_entry *manage_pde; +static struct rtas_update_flash_t rtas_update_flash_data; +static struct rtas_manage_flash_t rtas_manage_flash_data; +static struct rtas_validate_flash_t rtas_validate_flash_data; +static DEFINE_MUTEX(rtas_update_flash_mutex); +static DEFINE_MUTEX(rtas_manage_flash_mutex); +static DEFINE_MUTEX(rtas_validate_flash_mutex); /* Do simple sanity checks on the flash image. */ static int flash_list_valid(struct flash_block_list *flist) @@ -191,10 +192,10 @@ static void free_flash_list(struct flash_block_list *f) static int rtas_flash_release(struct inode *inode, struct file *file) { - struct proc_dir_entry *dp = PDE(file_inode(file)); - struct rtas_update_flash_t *uf; - - uf = (struct rtas_update_flash_t *) dp->data; + struct rtas_update_flash_t *const uf = &rtas_update_flash_data; + + mutex_lock(&rtas_update_flash_mutex); + if (uf->flist) { /* File was opened in write mode for a new flash attempt */ /* Clear saved list */ @@ -214,13 +215,14 @@ static int rtas_flash_release(struct inode *inode, struct file *file) uf->flist = NULL; } - atomic_dec(&dp->count); + mutex_unlock(&rtas_update_flash_mutex); return 0; } -static void get_flash_status_msg(int status, char *buf) +static size_t get_flash_status_msg(int status, char *buf) { - char *msg; + const char *msg; + size_t len; switch (status) { case FLASH_AUTH: @@ -242,34 +244,51 @@ static void get_flash_status_msg(int status, char *buf) msg = "ready: firmware image ready for flash on reboot\n"; break; default: - sprintf(buf, "error: unexpected status value %d\n", status); - return; + return sprintf(buf, "error: unexpected status value %d\n", + status); } - strcpy(buf, msg); + len = strlen(msg); + memcpy(buf, msg, len + 1); + return len; } /* Reading the proc file will show status (not the firmware contents) */ -static ssize_t rtas_flash_read(struct file *file, char __user *buf, - size_t count, loff_t *ppos) +static ssize_t rtas_flash_read_msg(struct file *file, char __user *buf, + size_t count, loff_t *ppos) { - struct proc_dir_entry *dp = PDE(file_inode(file)); - struct rtas_update_flash_t *uf; + struct rtas_update_flash_t *const uf = &rtas_update_flash_data; char msg[RTAS_MSG_MAXLEN]; + size_t len; + int status; - uf = dp->data; + mutex_lock(&rtas_update_flash_mutex); + status = uf->status; + mutex_unlock(&rtas_update_flash_mutex); - if (!strcmp(dp->name, FIRMWARE_FLASH_NAME)) { - get_flash_status_msg(uf->status, msg); - } else { /* FIRMWARE_UPDATE_NAME */ - sprintf(msg, "%d\n", uf->status); - } + /* Read as text message */ + len = get_flash_status_msg(status, msg); + return simple_read_from_buffer(buf, count, ppos, msg, len); +} +static ssize_t rtas_flash_read_num(struct file *file, char __user *buf, + size_t count, loff_t *ppos) +{ + struct rtas_update_flash_t *const uf = &rtas_update_flash_data; + char msg[RTAS_MSG_MAXLEN]; + int status; + + mutex_lock(&rtas_update_flash_mutex); + status = uf->status; + mutex_unlock(&rtas_update_flash_mutex); + + /* Read as number */ + sprintf(msg, "%d\n", status); return simple_read_from_buffer(buf, count, ppos, msg, strlen(msg)); } /* constructor for flash_block_cache */ -void rtas_block_ctor(void *ptr) +static void rtas_block_ctor(void *ptr) { memset(ptr, 0, RTAS_BLK_SIZE); } @@ -282,16 +301,15 @@ void rtas_block_ctor(void *ptr) static ssize_t rtas_flash_write(struct file *file, const char __user *buffer, size_t count, loff_t *off) { - struct proc_dir_entry *dp = PDE(file_inode(file)); - struct rtas_update_flash_t *uf; + struct rtas_update_flash_t *const uf = &rtas_update_flash_data; char *p; - int next_free; + int next_free, rc; struct flash_block_list *fl; - uf = (struct rtas_update_flash_t *) dp->data; + mutex_lock(&rtas_update_flash_mutex); if (uf->status == FLASH_AUTH || count == 0) - return count; /* discard data */ + goto out; /* discard data */ /* In the case that the image is not ready for flashing, the memory * allocated for the block list will be freed upon the release of the @@ -300,7 +318,7 @@ static ssize_t rtas_flash_write(struct file *file, const char __user *buffer, if (uf->flist == NULL) { uf->flist = kmem_cache_alloc(flash_block_cache, GFP_KERNEL); if (!uf->flist) - return -ENOMEM; + goto nomem; } fl = uf->flist; @@ -311,7 +329,7 @@ static ssize_t rtas_flash_write(struct file *file, const char __user *buffer, /* Need to allocate another block_list */ fl->next = kmem_cache_alloc(flash_block_cache, GFP_KERNEL); if (!fl->next) - return -ENOMEM; + goto nomem; fl = fl->next; next_free = 0; } @@ -320,52 +338,37 @@ static ssize_t rtas_flash_write(struct file *file, const char __user *buffer, count = RTAS_BLK_SIZE; p = kmem_cache_alloc(flash_block_cache, GFP_KERNEL); if (!p) - return -ENOMEM; + goto nomem; if(copy_from_user(p, buffer, count)) { kmem_cache_free(flash_block_cache, p); - return -EFAULT; + rc = -EFAULT; + goto error; } fl->blocks[next_free].data = p; fl->blocks[next_free].length = count; fl->num_blocks++; - +out: + mutex_unlock(&rtas_update_flash_mutex); return count; + +nomem: + rc = -ENOMEM; +error: + mutex_unlock(&rtas_update_flash_mutex); + return rc; } -static int rtas_excl_open(struct inode *inode, struct file *file) -{ - struct proc_dir_entry *dp = PDE(inode); - - /* Enforce exclusive open with use count of PDE */ - spin_lock(&flash_file_open_lock); - if (atomic_read(&dp->count) > 2) { - spin_unlock(&flash_file_open_lock); - return -EBUSY; - } - - atomic_inc(&dp->count); - spin_unlock(&flash_file_open_lock); - - return 0; -} - -static int rtas_excl_release(struct inode *inode, struct file *file) -{ - struct proc_dir_entry *dp = PDE(inode); - - atomic_dec(&dp->count); - - return 0; -} - -static void manage_flash(struct rtas_manage_flash_t *args_buf) +/* + * Flash management routines. + */ +static void manage_flash(struct rtas_manage_flash_t *args_buf, unsigned int op) { s32 rc; do { - rc = rtas_call(rtas_token("ibm,manage-flash-image"), 1, - 1, NULL, args_buf->op); + rc = rtas_call(rtas_token("ibm,manage-flash-image"), 1, 1, + NULL, op); } while (rtas_busy_delay(rc)); args_buf->status = rc; @@ -374,55 +377,62 @@ static void manage_flash(struct rtas_manage_flash_t *args_buf) static ssize_t manage_flash_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) { - struct proc_dir_entry *dp = PDE(file_inode(file)); - struct rtas_manage_flash_t *args_buf; + struct rtas_manage_flash_t *const args_buf = &rtas_manage_flash_data; char msg[RTAS_MSG_MAXLEN]; - int msglen; + int msglen, status; - args_buf = dp->data; - if (args_buf == NULL) - return 0; - - msglen = sprintf(msg, "%d\n", args_buf->status); + mutex_lock(&rtas_manage_flash_mutex); + status = args_buf->status; + mutex_unlock(&rtas_manage_flash_mutex); + msglen = sprintf(msg, "%d\n", status); return simple_read_from_buffer(buf, count, ppos, msg, msglen); } static ssize_t manage_flash_write(struct file *file, const char __user *buf, size_t count, loff_t *off) { - struct proc_dir_entry *dp = PDE(file_inode(file)); - struct rtas_manage_flash_t *args_buf; - const char reject_str[] = "0"; - const char commit_str[] = "1"; + struct rtas_manage_flash_t *const args_buf = &rtas_manage_flash_data; + static const char reject_str[] = "0"; + static const char commit_str[] = "1"; char stkbuf[10]; - int op; + int op, rc; + + mutex_lock(&rtas_manage_flash_mutex); - args_buf = (struct rtas_manage_flash_t *) dp->data; if ((args_buf->status == MANAGE_AUTH) || (count == 0)) - return count; + goto out; op = -1; if (buf) { if (count > 9) count = 9; - if (copy_from_user (stkbuf, buf, count)) { - return -EFAULT; - } + rc = -EFAULT; + if (copy_from_user (stkbuf, buf, count)) + goto error; if (strncmp(stkbuf, reject_str, strlen(reject_str)) == 0) op = RTAS_REJECT_TMP_IMG; else if (strncmp(stkbuf, commit_str, strlen(commit_str)) == 0) op = RTAS_COMMIT_TMP_IMG; } - if (op == -1) /* buf is empty, or contains invalid string */ - return -EINVAL; - - args_buf->op = op; - manage_flash(args_buf); + if (op == -1) { /* buf is empty, or contains invalid string */ + rc = -EINVAL; + goto error; + } + manage_flash(args_buf, op); +out: + mutex_unlock(&rtas_manage_flash_mutex); return count; + +error: + mutex_unlock(&rtas_manage_flash_mutex); + return rc; } +/* + * Validation routines. + */ static void validate_flash(struct rtas_validate_flash_t *args_buf) { int token = rtas_token("ibm,validate-flash-image"); @@ -462,14 +472,14 @@ static int get_validate_flash_msg(struct rtas_validate_flash_t *args_buf, static ssize_t validate_flash_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) { - struct proc_dir_entry *dp = PDE(file_inode(file)); - struct rtas_validate_flash_t *args_buf; + struct rtas_validate_flash_t *const args_buf = + &rtas_validate_flash_data; char msg[RTAS_MSG_MAXLEN]; int msglen; - args_buf = dp->data; - + mutex_lock(&rtas_validate_flash_mutex); msglen = get_validate_flash_msg(args_buf, msg); + mutex_unlock(&rtas_validate_flash_mutex); return simple_read_from_buffer(buf, count, ppos, msg, msglen); } @@ -477,24 +487,18 @@ static ssize_t validate_flash_read(struct file *file, char __user *buf, static ssize_t validate_flash_write(struct file *file, const char __user *buf, size_t count, loff_t *off) { - struct proc_dir_entry *dp = PDE(file_inode(file)); - struct rtas_validate_flash_t *args_buf; + struct rtas_validate_flash_t *const args_buf = + &rtas_validate_flash_data; int rc; - args_buf = (struct rtas_validate_flash_t *) dp->data; - - if (dp->data == NULL) { - dp->data = kmalloc(sizeof(struct rtas_validate_flash_t), - GFP_KERNEL); - if (dp->data == NULL) - return -ENOMEM; - } + mutex_lock(&rtas_validate_flash_mutex); /* We are only interested in the first 4K of the * candidate image */ if ((*off >= VALIDATE_BUF_SIZE) || (args_buf->status == VALIDATE_AUTH)) { *off += count; + mutex_unlock(&rtas_validate_flash_mutex); return count; } @@ -517,31 +521,29 @@ static ssize_t validate_flash_write(struct file *file, const char __user *buf, *off += count; rc = count; done: - if (rc < 0) { - kfree(dp->data); - dp->data = NULL; - } + mutex_unlock(&rtas_validate_flash_mutex); return rc; } static int validate_flash_release(struct inode *inode, struct file *file) { - struct proc_dir_entry *dp = PDE(file_inode(file)); - struct rtas_validate_flash_t *args_buf; + struct rtas_validate_flash_t *const args_buf = + &rtas_validate_flash_data; - args_buf = (struct rtas_validate_flash_t *) dp->data; + mutex_lock(&rtas_validate_flash_mutex); if (args_buf->status == VALIDATE_READY) { args_buf->buf_size = VALIDATE_BUF_SIZE; validate_flash(args_buf); } - /* The matching atomic_inc was in rtas_excl_open() */ - atomic_dec(&dp->count); - + mutex_unlock(&rtas_validate_flash_mutex); return 0; } +/* + * On-reboot flash update applicator. + */ static void rtas_flash_firmware(int reboot_type) { unsigned long image_size; @@ -634,75 +636,57 @@ static void rtas_flash_firmware(int reboot_type) spin_unlock(&rtas_data_buf_lock); } -static void remove_flash_pde(struct proc_dir_entry *dp) -{ - if (dp) { - kfree(dp->data); - remove_proc_entry(dp->name, dp->parent); - } -} - -static int initialize_flash_pde_data(const char *rtas_call_name, - size_t buf_size, - struct proc_dir_entry *dp) -{ +/* + * Manifest of proc files to create + */ +struct rtas_flash_file { + const char *filename; + const char *rtas_call_name; int *status; - int token; - - dp->data = kzalloc(buf_size, GFP_KERNEL); - if (dp->data == NULL) - return -ENOMEM; - - /* - * This code assumes that the status int is the first member of the - * struct - */ - status = (int *) dp->data; - token = rtas_token(rtas_call_name); - if (token == RTAS_UNKNOWN_SERVICE) - *status = FLASH_AUTH; - else - *status = FLASH_NO_OP; - - return 0; -} - -static struct proc_dir_entry *create_flash_pde(const char *filename, - const struct file_operations *fops) -{ - return proc_create(filename, S_IRUSR | S_IWUSR, NULL, fops); -} - -static const struct file_operations rtas_flash_operations = { - .owner = THIS_MODULE, - .read = rtas_flash_read, - .write = rtas_flash_write, - .open = rtas_excl_open, - .release = rtas_flash_release, - .llseek = default_llseek, + const struct file_operations fops; }; -static const struct file_operations manage_flash_operations = { - .owner = THIS_MODULE, - .read = manage_flash_read, - .write = manage_flash_write, - .open = rtas_excl_open, - .release = rtas_excl_release, - .llseek = default_llseek, -}; - -static const struct file_operations validate_flash_operations = { - .owner = THIS_MODULE, - .read = validate_flash_read, - .write = validate_flash_write, - .open = rtas_excl_open, - .release = validate_flash_release, - .llseek = default_llseek, +static const struct rtas_flash_file rtas_flash_files[] = { + { + .filename = "powerpc/rtas/" FIRMWARE_FLASH_NAME, + .rtas_call_name = "ibm,update-flash-64-and-reboot", + .status = &rtas_update_flash_data.status, + .fops.read = rtas_flash_read_msg, + .fops.write = rtas_flash_write, + .fops.release = rtas_flash_release, + .fops.llseek = default_llseek, + }, + { + .filename = "powerpc/rtas/" FIRMWARE_UPDATE_NAME, + .rtas_call_name = "ibm,update-flash-64-and-reboot", + .status = &rtas_update_flash_data.status, + .fops.read = rtas_flash_read_num, + .fops.write = rtas_flash_write, + .fops.release = rtas_flash_release, + .fops.llseek = default_llseek, + }, + { + .filename = "powerpc/rtas/" VALIDATE_FLASH_NAME, + .rtas_call_name = "ibm,validate-flash-image", + .status = &rtas_validate_flash_data.status, + .fops.read = validate_flash_read, + .fops.write = validate_flash_write, + .fops.release = validate_flash_release, + .fops.llseek = default_llseek, + }, + { + .filename = "powerpc/rtas/" MANAGE_FLASH_NAME, + .rtas_call_name = "ibm,manage-flash-image", + .status = &rtas_manage_flash_data.status, + .fops.read = manage_flash_read, + .fops.write = manage_flash_write, + .fops.llseek = default_llseek, + } }; static int __init rtas_flash_init(void) { - int rc; + int i; if (rtas_token("ibm,update-flash-64-and-reboot") == RTAS_UNKNOWN_SERVICE) { @@ -710,93 +694,65 @@ static int __init rtas_flash_init(void) return 1; } - firmware_flash_pde = create_flash_pde("powerpc/rtas/" - FIRMWARE_FLASH_NAME, - &rtas_flash_operations); - if (firmware_flash_pde == NULL) { - rc = -ENOMEM; - goto cleanup; - } - - rc = initialize_flash_pde_data("ibm,update-flash-64-and-reboot", - sizeof(struct rtas_update_flash_t), - firmware_flash_pde); - if (rc != 0) - goto cleanup; - - firmware_update_pde = create_flash_pde("powerpc/rtas/" - FIRMWARE_UPDATE_NAME, - &rtas_flash_operations); - if (firmware_update_pde == NULL) { - rc = -ENOMEM; - goto cleanup; - } - - rc = initialize_flash_pde_data("ibm,update-flash-64-and-reboot", - sizeof(struct rtas_update_flash_t), - firmware_update_pde); - if (rc != 0) - goto cleanup; - - validate_pde = create_flash_pde("powerpc/rtas/" VALIDATE_FLASH_NAME, - &validate_flash_operations); - if (validate_pde == NULL) { - rc = -ENOMEM; - goto cleanup; - } - - rc = initialize_flash_pde_data("ibm,validate-flash-image", - sizeof(struct rtas_validate_flash_t), - validate_pde); - if (rc != 0) - goto cleanup; - - manage_pde = create_flash_pde("powerpc/rtas/" MANAGE_FLASH_NAME, - &manage_flash_operations); - if (manage_pde == NULL) { - rc = -ENOMEM; - goto cleanup; - } - - rc = initialize_flash_pde_data("ibm,manage-flash-image", - sizeof(struct rtas_manage_flash_t), - manage_pde); - if (rc != 0) - goto cleanup; - - rtas_flash_term_hook = rtas_flash_firmware; + rtas_validate_flash_data.buf = kzalloc(VALIDATE_BUF_SIZE, GFP_KERNEL); + if (!rtas_validate_flash_data.buf) + return -ENOMEM; flash_block_cache = kmem_cache_create("rtas_flash_cache", - RTAS_BLK_SIZE, RTAS_BLK_SIZE, 0, - rtas_block_ctor); + RTAS_BLK_SIZE, RTAS_BLK_SIZE, 0, + rtas_block_ctor); if (!flash_block_cache) { printk(KERN_ERR "%s: failed to create block cache\n", __func__); - rc = -ENOMEM; - goto cleanup; + goto enomem_buf; } + + for (i = 0; i < ARRAY_SIZE(rtas_flash_files); i++) { + const struct rtas_flash_file *f = &rtas_flash_files[i]; + int token; + + if (!proc_create(f->filename, S_IRUSR | S_IWUSR, NULL, &f->fops)) + goto enomem; + + /* + * This code assumes that the status int is the first member of the + * struct + */ + token = rtas_token(f->rtas_call_name); + if (token == RTAS_UNKNOWN_SERVICE) + *f->status = FLASH_AUTH; + else + *f->status = FLASH_NO_OP; + } + + rtas_flash_term_hook = rtas_flash_firmware; return 0; -cleanup: - remove_flash_pde(firmware_flash_pde); - remove_flash_pde(firmware_update_pde); - remove_flash_pde(validate_pde); - remove_flash_pde(manage_pde); +enomem: + while (--i >= 0) { + const struct rtas_flash_file *f = &rtas_flash_files[i]; + remove_proc_entry(f->filename, NULL); + } - return rc; + kmem_cache_destroy(flash_block_cache); +enomem_buf: + kfree(rtas_validate_flash_data.buf); + return -ENOMEM; } static void __exit rtas_flash_cleanup(void) { + int i; + rtas_flash_term_hook = NULL; - if (flash_block_cache) - kmem_cache_destroy(flash_block_cache); + for (i = 0; i < ARRAY_SIZE(rtas_flash_files); i++) { + const struct rtas_flash_file *f = &rtas_flash_files[i]; + remove_proc_entry(f->filename, NULL); + } - remove_flash_pde(firmware_flash_pde); - remove_flash_pde(firmware_update_pde); - remove_flash_pde(validate_pde); - remove_flash_pde(manage_pde); + kmem_cache_destroy(flash_block_cache); + kfree(rtas_validate_flash_data.buf); } module_init(rtas_flash_init); From 4c23782091dc98221dc149e844ab128771a78ea2 Mon Sep 17 00:00:00 2001 From: David Howells Date: Fri, 12 Apr 2013 18:54:43 +0100 Subject: [PATCH 199/204] ppc: Clean up scanlog Clean up the pseries scanlog driver's use of procfs: (1) Don't need to save the proc_dir_entry pointer as we have the filename to remove with. (2) Save the scan log buffer pointer in a static variable (there is only one of it) and don't save it in the PDE (which doesn't have a destructor). Signed-off-by: David Howells cc: Benjamin Herrenschmidt cc: Paul Mackerras cc: linuxppc-dev@lists.ozlabs.org Signed-off-by: Al Viro --- arch/powerpc/platforms/pseries/scanlog.c | 29 +++++++++--------------- 1 file changed, 11 insertions(+), 18 deletions(-) diff --git a/arch/powerpc/platforms/pseries/scanlog.c b/arch/powerpc/platforms/pseries/scanlog.c index cc220d2061b2..b502ab61aafa 100644 --- a/arch/powerpc/platforms/pseries/scanlog.c +++ b/arch/powerpc/platforms/pseries/scanlog.c @@ -41,12 +41,12 @@ static unsigned int ibm_scan_log_dump; /* RTAS token */ -static struct proc_dir_entry *proc_ppc64_scan_log_dump; /* The proc file */ +static unsigned int *scanlog_buffer; /* The data buffer */ static ssize_t scanlog_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) { - unsigned int *data = PDE_DATA(file_inode(file)); + unsigned int *data = scanlog_buffer; int status; unsigned long len, off; unsigned int wait_time; @@ -134,7 +134,7 @@ static ssize_t scanlog_write(struct file * file, const char __user * buf, static int scanlog_open(struct inode * inode, struct file * file) { - unsigned int *data = PDE_DATA(file_inode(file)); + unsigned int *data = scanlog_buffer; if (data[0] != 0) { /* This imperfect test stops a second copy of the @@ -150,10 +150,9 @@ static int scanlog_open(struct inode * inode, struct file * file) static int scanlog_release(struct inode * inode, struct file * file) { - unsigned int *data = PDE_DATA(file_inode(file)); + unsigned int *data = scanlog_buffer; data[0] = 0; - return 0; } @@ -169,7 +168,6 @@ const struct file_operations scanlog_fops = { static int __init scanlog_init(void) { struct proc_dir_entry *ent; - void *data; int err = -ENOMEM; ibm_scan_log_dump = rtas_token("ibm,scan-log-dump"); @@ -177,29 +175,24 @@ static int __init scanlog_init(void) return -ENODEV; /* Ideally we could allocate a buffer < 4G */ - data = kzalloc(RTAS_DATA_BUF_SIZE, GFP_KERNEL); - if (!data) + scanlog_buffer = kzalloc(RTAS_DATA_BUF_SIZE, GFP_KERNEL); + if (!scanlog_buffer) goto err; - ent = proc_create_data("powerpc/rtas/scan-log-dump", S_IRUSR, NULL, - &scanlog_fops, data); + ent = proc_create("powerpc/rtas/scan-log-dump", S_IRUSR, NULL, + &scanlog_fops); if (!ent) goto err; - - proc_ppc64_scan_log_dump = ent; - return 0; err: - kfree(data); + kfree(scanlog_buffer); return err; } static void __exit scanlog_cleanup(void) { - if (proc_ppc64_scan_log_dump) { - kfree(proc_ppc64_scan_log_dump->data); - remove_proc_entry("scan-log-dump", proc_ppc64_scan_log_dump->parent); - } + remove_proc_entry("powerpc/rtas/scan-log-dump", NULL); + kfree(scanlog_buffer); } module_init(scanlog_init); From 8d8b97ba499cb69fccb5fd9f2b439e3265fc3f27 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 19 Apr 2013 23:11:24 -0400 Subject: [PATCH 200/204] take cgroup_open() and cpuset_open() to fs/proc/base.c Signed-off-by: Al Viro --- fs/proc/base.c | 31 +++++++++++++++++++++++++++++++ include/linux/cgroup.h | 2 +- include/linux/cpuset.h | 3 +-- kernel/cgroup.c | 15 +-------------- kernel/cpuset.c | 15 +-------------- 5 files changed, 35 insertions(+), 31 deletions(-) diff --git a/fs/proc/base.c b/fs/proc/base.c index f2637c972160..8281986693be 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -404,6 +404,37 @@ static const struct file_operations proc_lstats_operations = { #endif +#ifdef CONFIG_CGROUPS +static int cgroup_open(struct inode *inode, struct file *file) +{ + struct pid *pid = PROC_I(inode)->pid; + return single_open(file, proc_cgroup_show, pid); +} + +static const struct file_operations proc_cgroup_operations = { + .open = cgroup_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; +#endif + +#ifdef CONFIG_PROC_PID_CPUSET + +static int cpuset_open(struct inode *inode, struct file *file) +{ + struct pid *pid = PROC_I(inode)->pid; + return single_open(file, proc_cpuset_show, pid); +} + +static const struct file_operations proc_cpuset_operations = { + .open = cpuset_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; +#endif + static int proc_oom_score(struct task_struct *task, char *buffer) { unsigned long totalpages = totalram_pages + total_swap_pages; diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h index 900af5964f55..68f2157b71d4 100644 --- a/include/linux/cgroup.h +++ b/include/linux/cgroup.h @@ -42,7 +42,7 @@ extern int cgroupstats_build(struct cgroupstats *stats, extern int cgroup_load_subsys(struct cgroup_subsys *ss); extern void cgroup_unload_subsys(struct cgroup_subsys *ss); -extern const struct file_operations proc_cgroup_operations; +extern int proc_cgroup_show(struct seq_file *, void *); /* Define the enumeration of all builtin cgroup subsystems */ #define SUBSYS(_x) _x ## _subsys_id, diff --git a/include/linux/cpuset.h b/include/linux/cpuset.h index 8c8a60d29407..22b637c5ecae 100644 --- a/include/linux/cpuset.h +++ b/include/linux/cpuset.h @@ -64,10 +64,9 @@ extern int cpuset_mems_allowed_intersects(const struct task_struct *tsk1, extern int cpuset_memory_pressure_enabled; extern void __cpuset_memory_pressure_bump(void); -extern const struct file_operations proc_cpuset_operations; -struct seq_file; extern void cpuset_task_status_allowed(struct seq_file *m, struct task_struct *task); +extern int proc_cpuset_show(struct seq_file *, void *); extern int cpuset_mem_spread_node(void); extern int cpuset_slab_spread_node(void); diff --git a/kernel/cgroup.c b/kernel/cgroup.c index a32f9432666c..d5cffe80b469 100644 --- a/kernel/cgroup.c +++ b/kernel/cgroup.c @@ -4769,7 +4769,7 @@ int __init cgroup_init(void) */ /* TODO: Use a proper seq_file iterator */ -static int proc_cgroup_show(struct seq_file *m, void *v) +int proc_cgroup_show(struct seq_file *m, void *v) { struct pid *pid; struct task_struct *tsk; @@ -4821,19 +4821,6 @@ static int proc_cgroup_show(struct seq_file *m, void *v) return retval; } -static int cgroup_open(struct inode *inode, struct file *file) -{ - struct pid *pid = PROC_I(inode)->pid; - return single_open(file, proc_cgroup_show, pid); -} - -const struct file_operations proc_cgroup_operations = { - .open = cgroup_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - /* Display information about each subsystem and each hierarchy */ static int proc_cgroupstats_show(struct seq_file *m, void *v) { diff --git a/kernel/cpuset.c b/kernel/cpuset.c index 4f9dfe43ecbd..1b6f615be587 100644 --- a/kernel/cpuset.c +++ b/kernel/cpuset.c @@ -2666,7 +2666,7 @@ void __cpuset_memory_pressure_bump(void) * and we take cpuset_mutex, keeping cpuset_attach() from changing it * anyway. */ -static int proc_cpuset_show(struct seq_file *m, void *unused_v) +int proc_cpuset_show(struct seq_file *m, void *unused_v) { struct pid *pid; struct task_struct *tsk; @@ -2700,19 +2700,6 @@ static int proc_cpuset_show(struct seq_file *m, void *unused_v) out: return retval; } - -static int cpuset_open(struct inode *inode, struct file *file) -{ - struct pid *pid = PROC_I(inode)->pid; - return single_open(file, proc_cpuset_show, pid); -} - -const struct file_operations proc_cpuset_operations = { - .open = cpuset_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; #endif /* CONFIG_PROC_PID_CPUSET */ /* Display task mems_allowed in /proc//status file. */ From a8ca16ea7b0abb0a7e49492d1123b715f0ec62e8 Mon Sep 17 00:00:00 2001 From: David Howells Date: Fri, 12 Apr 2013 17:27:28 +0100 Subject: [PATCH 201/204] proc: Supply a function to remove a proc entry by PDE Supply a function (proc_remove()) to remove a proc entry (and any subtree rooted there) by proc_dir_entry pointer rather than by name and (optionally) root dir entry pointer. This allows us to eliminate all remaining pde->name accesses outside of procfs. Signed-off-by: David Howells Acked-by: Grant Likely cc: linux-acpi@vger.kernel.org cc: openipmi-developer@lists.sourceforge.net cc: devicetree-discuss@lists.ozlabs.org cc: linux-pci@vger.kernel.org cc: netdev@vger.kernel.org cc: netfilter-devel@vger.kernel.org cc: alsa-devel@alsa-project.org Signed-off-by: Al Viro --- drivers/acpi/sbs.c | 21 ++++----------------- drivers/char/ipmi/ipmi_msghandler.c | 2 +- drivers/misc/sgi-gru/gruprocfs.c | 2 +- drivers/of/base.c | 11 +---------- drivers/pci/proc.c | 12 +++--------- fs/proc/generic.c | 7 +++++++ fs/proc/vmcore.c | 2 +- include/linux/proc_fs.h | 2 ++ kernel/irq/proc.c | 6 +----- net/8021q/vlanproc.c | 9 ++------- net/core/pktgen.c | 6 ++---- net/ipv4/netfilter/ipt_CLUSTERIP.c | 4 ++-- net/ipv6/proc.c | 3 +-- sound/core/info.c | 19 +++++-------------- 14 files changed, 33 insertions(+), 73 deletions(-) diff --git a/drivers/acpi/sbs.c b/drivers/acpi/sbs.c index a296e08d76b6..b6241eeb1132 100644 --- a/drivers/acpi/sbs.c +++ b/drivers/acpi/sbs.c @@ -521,19 +521,6 @@ acpi_sbs_add_fs(struct proc_dir_entry **dir, return 0; } -static void -acpi_sbs_remove_fs(struct proc_dir_entry **dir, - struct proc_dir_entry *parent_dir) -{ - if (*dir) { - remove_proc_entry(ACPI_SBS_FILE_INFO, *dir); - remove_proc_entry(ACPI_SBS_FILE_STATE, *dir); - remove_proc_entry(ACPI_SBS_FILE_ALARM, *dir); - remove_proc_entry((*dir)->name, parent_dir); - *dir = NULL; - } -} - /* Smart Battery Interface */ static struct proc_dir_entry *acpi_battery_dir = NULL; @@ -836,8 +823,8 @@ static void acpi_battery_remove(struct acpi_sbs *sbs, int id) power_supply_unregister(&battery->bat); } #ifdef CONFIG_ACPI_PROCFS_POWER - if (battery->proc_entry) - acpi_sbs_remove_fs(&battery->proc_entry, acpi_battery_dir); + proc_remove(battery->proc_entry); + battery->proc_entry = NULL; #endif } @@ -873,8 +860,8 @@ static void acpi_charger_remove(struct acpi_sbs *sbs) if (sbs->charger.dev) power_supply_unregister(&sbs->charger); #ifdef CONFIG_ACPI_PROCFS_POWER - if (sbs->charger_entry) - acpi_sbs_remove_fs(&sbs->charger_entry, acpi_ac_dir); + proc_remove(sbs->charger_entry); + sbs->charger_entry = NULL; #endif } diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c index 1420bbbe1a61..4d439d2fcfd6 100644 --- a/drivers/char/ipmi/ipmi_msghandler.c +++ b/drivers/char/ipmi/ipmi_msghandler.c @@ -4541,7 +4541,7 @@ static void __exit cleanup_ipmi(void) del_timer_sync(&ipmi_timer); #ifdef CONFIG_PROC_FS - remove_proc_entry(proc_ipmi_root->name, NULL); + proc_remove(proc_ipmi_root); #endif /* CONFIG_PROC_FS */ driver_unregister(&ipmidriver.driver); diff --git a/drivers/misc/sgi-gru/gruprocfs.c b/drivers/misc/sgi-gru/gruprocfs.c index 950dbe9ecb36..797d7962cc88 100644 --- a/drivers/misc/sgi-gru/gruprocfs.c +++ b/drivers/misc/sgi-gru/gruprocfs.c @@ -355,7 +355,7 @@ static void delete_proc_files(void) for (p = proc_files; p->name; p++) if (p->entry) remove_proc_entry(p->name, proc_gru); - remove_proc_entry("gru", proc_gru->parent); + proc_remove(proc_gru); } } diff --git a/drivers/of/base.c b/drivers/of/base.c index 321d3ef05006..9c704369eda8 100644 --- a/drivers/of/base.c +++ b/drivers/of/base.c @@ -1452,16 +1452,7 @@ int of_attach_node(struct device_node *np) #ifdef CONFIG_PROC_DEVICETREE static void of_remove_proc_dt_entry(struct device_node *dn) { - struct device_node *parent = dn->parent; - struct property *prop = dn->properties; - - while (prop) { - remove_proc_entry(prop->name, dn->pde); - prop = prop->next; - } - - if (dn->pde) - remove_proc_entry(dn->pde->name, parent->pde); + proc_remove(dn->pde); } #else static void of_remove_proc_dt_entry(struct device_node *dn) diff --git a/drivers/pci/proc.c b/drivers/pci/proc.c index 7cde7c131fd0..08126087ec31 100644 --- a/drivers/pci/proc.c +++ b/drivers/pci/proc.c @@ -427,20 +427,14 @@ int pci_proc_attach_device(struct pci_dev *dev) int pci_proc_detach_device(struct pci_dev *dev) { - struct proc_dir_entry *e; - - if ((e = dev->procent)) { - remove_proc_entry(e->name, dev->bus->procdir); - dev->procent = NULL; - } + proc_remove(dev->procent); + dev->procent = NULL; return 0; } int pci_proc_detach_bus(struct pci_bus* bus) { - struct proc_dir_entry *de = bus->procdir; - if (de) - remove_proc_entry(de->name, proc_bus_pci_dir); + proc_remove(bus->procdir); return 0; } diff --git a/fs/proc/generic.c b/fs/proc/generic.c index 75e08d36b2f1..d9631d9b7aff 100644 --- a/fs/proc/generic.c +++ b/fs/proc/generic.c @@ -624,3 +624,10 @@ void *proc_get_parent_data(const struct inode *inode) return de->parent->data; } EXPORT_SYMBOL_GPL(proc_get_parent_data); + +void proc_remove(struct proc_dir_entry *de) +{ + if (de) + remove_proc_subtree(de->name, de->parent); +} +EXPORT_SYMBOL(proc_remove); diff --git a/fs/proc/vmcore.c b/fs/proc/vmcore.c index 38edddc25816..17f7e080d7ff 100644 --- a/fs/proc/vmcore.c +++ b/fs/proc/vmcore.c @@ -699,7 +699,7 @@ void vmcore_cleanup(void) struct list_head *pos, *next; if (proc_vmcore) { - remove_proc_entry(proc_vmcore->name, proc_vmcore->parent); + proc_remove(proc_vmcore); proc_vmcore = NULL; } diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h index bae820742341..cb78d5be6859 100644 --- a/include/linux/proc_fs.h +++ b/include/linux/proc_fs.h @@ -67,6 +67,7 @@ struct proc_dir_entry *proc_create_data(const char *name, umode_t mode, struct proc_dir_entry *parent, const struct file_operations *proc_fops, void *data); +extern void proc_remove(struct proc_dir_entry *); extern void remove_proc_entry(const char *name, struct proc_dir_entry *parent); extern int remove_proc_subtree(const char *name, struct proc_dir_entry *parent); @@ -101,6 +102,7 @@ static inline struct proc_dir_entry *proc_create_data(const char *name, { return NULL; } +static inline void proc_remove(struct proc_dir_entry *de) {} #define remove_proc_entry(name, parent) do {} while (0) #define remove_proc_subtree(name, parent) do {} while (0) diff --git a/kernel/irq/proc.c b/kernel/irq/proc.c index d59ae3751a33..19ed5c425c3b 100644 --- a/kernel/irq/proc.c +++ b/kernel/irq/proc.c @@ -366,11 +366,7 @@ void unregister_irq_proc(unsigned int irq, struct irq_desc *desc) void unregister_handler_proc(unsigned int irq, struct irqaction *action) { - if (action->dir) { - struct irq_desc *desc = irq_to_desc(irq); - - remove_proc_entry(action->dir->name, desc->dir); - } + proc_remove(action->dir); } static void register_default_affinity_proc(void) diff --git a/net/8021q/vlanproc.c b/net/8021q/vlanproc.c index 959ddbb0ca4d..1d0e89213a28 100644 --- a/net/8021q/vlanproc.c +++ b/net/8021q/vlanproc.c @@ -184,14 +184,9 @@ int vlan_proc_add_dev(struct net_device *vlandev) */ int vlan_proc_rem_dev(struct net_device *vlandev) { - struct vlan_net *vn = net_generic(dev_net(vlandev), vlan_net_id); - /** NOTE: This will consume the memory pointed to by dent, it seems. */ - if (vlan_dev_priv(vlandev)->dent) { - remove_proc_entry(vlan_dev_priv(vlandev)->dent->name, - vn->proc_vlan_dir); - vlan_dev_priv(vlandev)->dent = NULL; - } + proc_remove(vlan_dev_priv(vlandev)->dent); + vlan_dev_priv(vlandev)->dent = NULL; return 0; } diff --git a/net/core/pktgen.c b/net/core/pktgen.c index f6af4fe59f2e..6c41e979dc88 100644 --- a/net/core/pktgen.c +++ b/net/core/pktgen.c @@ -1904,7 +1904,7 @@ static void pktgen_change_name(const struct pktgen_net *pn, struct net_device *d if (pkt_dev->odev != dev) continue; - remove_proc_entry(pkt_dev->entry->name, pn->proc_dir); + proc_remove(pkt_dev->entry); pkt_dev->entry = proc_create_data(dev->name, 0600, pn->proc_dir, @@ -3576,8 +3576,6 @@ static void _rem_dev_from_if_list(struct pktgen_thread *t, static int pktgen_remove_device(struct pktgen_thread *t, struct pktgen_dev *pkt_dev) { - struct pktgen_net *pn = t->net; - pr_debug("remove_device pkt_dev=%p\n", pkt_dev); if (pkt_dev->running) { @@ -3597,7 +3595,7 @@ static int pktgen_remove_device(struct pktgen_thread *t, _rem_dev_from_if_list(t, pkt_dev); if (pkt_dev->entry) - remove_proc_entry(pkt_dev->entry->name, pn->proc_dir); + proc_remove(pkt_dev->entry); #ifdef CONFIG_XFRM free_SAs(pkt_dev); diff --git a/net/ipv4/netfilter/ipt_CLUSTERIP.c b/net/ipv4/netfilter/ipt_CLUSTERIP.c index e4738fef070a..0b732efd32e2 100644 --- a/net/ipv4/netfilter/ipt_CLUSTERIP.c +++ b/net/ipv4/netfilter/ipt_CLUSTERIP.c @@ -105,7 +105,7 @@ clusterip_config_entry_put(struct clusterip_config *c) * functions are also incrementing the refcount on their own, * so it's safe to remove the entry even if it's in use. */ #ifdef CONFIG_PROC_FS - remove_proc_entry(c->pde->name, c->pde->parent); + proc_remove(c->pde); #endif return; } @@ -736,7 +736,7 @@ static void __exit clusterip_tg_exit(void) { pr_info("ClusterIP Version %s unloading\n", CLUSTERIP_VERSION); #ifdef CONFIG_PROC_FS - remove_proc_entry(clusterip_procdir->name, clusterip_procdir->parent); + proc_remove(clusterip_procdir); #endif nf_unregister_hook(&cip_arp_ops); xt_unregister_target(&clusterip_tg_reg); diff --git a/net/ipv6/proc.c b/net/ipv6/proc.c index 7ea6e180139c..537d9ee7209f 100644 --- a/net/ipv6/proc.c +++ b/net/ipv6/proc.c @@ -287,8 +287,7 @@ int snmp6_unregister_dev(struct inet6_dev *idev) return -ENOENT; if (!idev->stats.proc_dir_entry) return -EINVAL; - remove_proc_entry(idev->stats.proc_dir_entry->name, - net->mib.proc_net_devsnmp6); + proc_remove(idev->stats.proc_dir_entry); idev->stats.proc_dir_entry = NULL; return 0; } diff --git a/sound/core/info.c b/sound/core/info.c index c7f41c3bbd5c..3c9bd6b10a96 100644 --- a/sound/core/info.c +++ b/sound/core/info.c @@ -153,13 +153,6 @@ EXPORT_SYMBOL(snd_seq_root); struct snd_info_entry *snd_oss_root; #endif -static void snd_remove_proc_entry(struct proc_dir_entry *parent, - struct proc_dir_entry *de) -{ - if (de) - remove_proc_entry(de->name, parent); -} - static loff_t snd_info_entry_llseek(struct file *file, loff_t offset, int orig) { struct snd_info_private_data *data; @@ -580,7 +573,7 @@ int __exit snd_info_done(void) #ifdef CONFIG_SND_OSSEMUL snd_info_free_entry(snd_oss_root); #endif - snd_remove_proc_entry(NULL, snd_proc_root); + proc_remove(snd_proc_root); } return 0; } @@ -642,7 +635,7 @@ void snd_info_card_id_change(struct snd_card *card) { mutex_lock(&info_mutex); if (card->proc_root_link) { - snd_remove_proc_entry(snd_proc_root, card->proc_root_link); + proc_remove(card->proc_root_link); card->proc_root_link = NULL; } if (strcmp(card->id, card->proc_root->name)) @@ -661,10 +654,8 @@ void snd_info_card_disconnect(struct snd_card *card) if (!card) return; mutex_lock(&info_mutex); - if (card->proc_root_link) { - snd_remove_proc_entry(snd_proc_root, card->proc_root_link); - card->proc_root_link = NULL; - } + proc_remove(card->proc_root_link); + card->proc_root_link = NULL; if (card->proc_root) snd_info_disconnect(card->proc_root); mutex_unlock(&info_mutex); @@ -856,7 +847,7 @@ static void snd_info_disconnect(struct snd_info_entry *entry) list_del_init(&entry->list); root = entry->parent == NULL ? snd_proc_root : entry->parent->p; snd_BUG_ON(!root); - snd_remove_proc_entry(root, entry->p); + proc_remove(entry->p); entry->p = NULL; } From c30480b92cf497aa3b463367a82f1c2fdc5c46e9 Mon Sep 17 00:00:00 2001 From: David Howells Date: Fri, 12 Apr 2013 18:03:36 +0100 Subject: [PATCH 202/204] proc: Make the PROC_I() and PDE() macros internal to procfs Make the PROC_I() and PDE() macros internal to procfs. This means making PDE_DATA() out of line. This could be made more optimal by storing PDE()->data into inode->i_private. Also provide a __PDE_DATA() that is inline and internal to procfs. Signed-off-by: David Howells Signed-off-by: Al Viro --- fs/proc/generic.c | 8 +++++++- fs/proc/internal.h | 18 ++++++++++++++++++ fs/proc/proc_devtree.c | 2 +- include/linux/proc_fs.h | 17 ++--------------- 4 files changed, 28 insertions(+), 17 deletions(-) diff --git a/fs/proc/generic.c b/fs/proc/generic.c index d9631d9b7aff..a2596afffae6 100644 --- a/fs/proc/generic.c +++ b/fs/proc/generic.c @@ -165,7 +165,7 @@ void proc_free_inum(unsigned int inum) static void *proc_follow_link(struct dentry *dentry, struct nameidata *nd) { - nd_set_link(nd, PDE_DATA(dentry->d_inode)); + nd_set_link(nd, __PDE_DATA(dentry->d_inode)); return NULL; } @@ -631,3 +631,9 @@ void proc_remove(struct proc_dir_entry *de) remove_proc_subtree(de->name, de->parent); } EXPORT_SYMBOL(proc_remove); + +void *PDE_DATA(const struct inode *inode) +{ + return __PDE_DATA(inode); +} +EXPORT_SYMBOL(PDE_DATA); diff --git a/fs/proc/internal.h b/fs/proc/internal.h index c529b5f16ee4..86a24060e1b9 100644 --- a/fs/proc/internal.h +++ b/fs/proc/internal.h @@ -84,6 +84,24 @@ struct proc_maps_private { void proc_init_inodecache(void); +/* + * General functions + */ +static inline struct proc_inode *PROC_I(const struct inode *inode) +{ + return container_of(inode, struct proc_inode, vfs_inode); +} + +static inline struct proc_dir_entry *PDE(const struct inode *inode) +{ + return PROC_I(inode)->pde; +} + +static inline void *__PDE_DATA(const struct inode *inode) +{ + return PDE(inode)->data; +} + static inline struct pid *proc_pid(struct inode *inode) { return PROC_I(inode)->pid; diff --git a/fs/proc/proc_devtree.c b/fs/proc/proc_devtree.c index e0043c7e7ab7..505afc950e0a 100644 --- a/fs/proc/proc_devtree.c +++ b/fs/proc/proc_devtree.c @@ -41,7 +41,7 @@ static int property_proc_show(struct seq_file *m, void *v) static int property_proc_open(struct inode *inode, struct file *file) { - return single_open(file, property_proc_show, PDE_DATA(inode)); + return single_open(file, property_proc_show, __PDE_DATA(inode)); } static const struct file_operations property_proc_fops = { diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h index cb78d5be6859..2112926de854 100644 --- a/include/linux/proc_fs.h +++ b/include/linux/proc_fs.h @@ -87,6 +87,7 @@ static inline struct proc_dir_entry *proc_create(const char *name, umode_t mode, extern void proc_set_size(struct proc_dir_entry *, loff_t); extern void proc_set_user(struct proc_dir_entry *, kuid_t, kgid_t); +extern void *PDE_DATA(const struct inode *); extern void *proc_get_parent_data(const struct inode *); #else @@ -116,6 +117,7 @@ static inline struct proc_dir_entry *proc_mkdir_mode(const char *name, umode_t mode, struct proc_dir_entry *parent) { return NULL; } static inline void proc_set_size(struct proc_dir_entry *de, loff_t size) {} static inline void proc_set_user(struct proc_dir_entry *de, kuid_t uid, kgid_t gid) {} +static inline void *PDE_DATA(const struct inode *inode) {BUG(); return NULL;} #endif /* CONFIG_PROC_FS */ @@ -142,21 +144,6 @@ struct proc_inode { struct inode vfs_inode; }; -static inline struct proc_inode *PROC_I(const struct inode *inode) -{ - return container_of(inode, struct proc_inode, vfs_inode); -} - -static inline struct proc_dir_entry *PDE(const struct inode *inode) -{ - return PROC_I(inode)->pde; -} - -static inline void *PDE_DATA(const struct inode *inode) -{ - return PROC_I(inode)->pde->data; -} - static inline struct proc_dir_entry *proc_net_mkdir( struct net *net, const char *name, struct proc_dir_entry *parent) { From 59d8053f1e16904d54ed7469d4b36801ea6b8f2c Mon Sep 17 00:00:00 2001 From: David Howells Date: Thu, 11 Apr 2013 13:34:43 +0100 Subject: [PATCH 203/204] proc: Move non-public stuff from linux/proc_fs.h to fs/proc/internal.h Move non-public declarations and definitions from linux/proc_fs.h to fs/proc/internal.h. Signed-off-by: David Howells Signed-off-by: Al Viro --- fs/proc/internal.h | 315 +++++++++++++++++++++++++--------------- fs/proc/kcore.c | 1 + include/linux/proc_fs.h | 138 ++++-------------- 3 files changed, 233 insertions(+), 221 deletions(-) diff --git a/fs/proc/internal.h b/fs/proc/internal.h index 86a24060e1b9..04255b6e96b7 100644 --- a/fs/proc/internal.h +++ b/fs/proc/internal.h @@ -1,4 +1,4 @@ -/* internal.h: internal procfs definitions +/* Internal procfs definitions * * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) @@ -9,81 +9,66 @@ * 2 of the License, or (at your option) any later version. */ -#include #include +#include +#include +#include #include -struct ctl_table_header; -struct mempolicy; -extern struct proc_dir_entry proc_root; -extern void proc_self_init(void); -#ifdef CONFIG_PROC_SYSCTL -extern int proc_sys_init(void); -extern void sysctl_head_put(struct ctl_table_header *head); -#else -static inline void proc_sys_init(void) { } -static inline void sysctl_head_put(struct ctl_table_header *head) { } -#endif -#ifdef CONFIG_NET -extern int proc_net_init(void); -#else -static inline int proc_net_init(void) { return 0; } -#endif +struct ctl_table_header; +struct mempolicy; -struct vmalloc_info { - unsigned long used; - unsigned long largest_chunk; +/* + * This is not completely implemented yet. The idea is to + * create an in-memory tree (like the actual /proc filesystem + * tree) of these proc_dir_entries, so that we can dynamically + * add new files to /proc. + * + * The "next" pointer creates a linked list of one /proc directory, + * while parent/subdir create the directory structure (every + * /proc file has a parent, but "subdir" is NULL for all + * non-directory entries). + */ +struct proc_dir_entry { + unsigned int low_ino; + umode_t mode; + nlink_t nlink; + kuid_t uid; + kgid_t gid; + loff_t size; + const struct inode_operations *proc_iops; + const struct file_operations *proc_fops; + struct proc_dir_entry *next, *parent, *subdir; + void *data; + atomic_t count; /* use count */ + atomic_t in_use; /* number of callers into module in progress; */ + /* negative -> it's going away RSN */ + struct completion *pde_unload_completion; + struct list_head pde_openers; /* who did ->open, but not ->release */ + spinlock_t pde_unload_lock; /* proc_fops checks and pde_users bumps */ + u8 namelen; + char name[]; }; -#ifdef CONFIG_MMU -#define VMALLOC_TOTAL (VMALLOC_END - VMALLOC_START) -extern void get_vmalloc_info(struct vmalloc_info *vmi); -#else +union proc_op { + int (*proc_get_link)(struct dentry *, struct path *); + int (*proc_read)(struct task_struct *task, char *page); + int (*proc_show)(struct seq_file *m, + struct pid_namespace *ns, struct pid *pid, + struct task_struct *task); +}; -#define VMALLOC_TOTAL 0UL -#define get_vmalloc_info(vmi) \ -do { \ - (vmi)->used = 0; \ - (vmi)->largest_chunk = 0; \ -} while(0) -#endif - -extern int proc_tid_stat(struct seq_file *m, struct pid_namespace *ns, - struct pid *pid, struct task_struct *task); -extern int proc_tgid_stat(struct seq_file *m, struct pid_namespace *ns, - struct pid *pid, struct task_struct *task); -extern int proc_pid_status(struct seq_file *m, struct pid_namespace *ns, - struct pid *pid, struct task_struct *task); -extern int proc_pid_statm(struct seq_file *m, struct pid_namespace *ns, - struct pid *pid, struct task_struct *task); -extern loff_t mem_lseek(struct file *file, loff_t offset, int orig); - -extern const struct file_operations proc_tid_children_operations; -extern const struct file_operations proc_pid_maps_operations; -extern const struct file_operations proc_tid_maps_operations; -extern const struct file_operations proc_pid_numa_maps_operations; -extern const struct file_operations proc_tid_numa_maps_operations; -extern const struct file_operations proc_pid_smaps_operations; -extern const struct file_operations proc_tid_smaps_operations; -extern const struct file_operations proc_clear_refs_operations; -extern const struct file_operations proc_pagemap_operations; -extern const struct file_operations proc_net_operations; -extern const struct inode_operations proc_net_inode_operations; -extern const struct inode_operations proc_pid_link_inode_operations; - -struct proc_maps_private { +struct proc_inode { struct pid *pid; - struct task_struct *task; -#ifdef CONFIG_MMU - struct vm_area_struct *tail_vma; -#endif -#ifdef CONFIG_NUMA - struct mempolicy *task_mempolicy; -#endif + int fd; + union proc_op op; + struct proc_dir_entry *pde; + struct ctl_table_header *sysctl; + struct ctl_table *sysctl_entry; + struct proc_ns ns; + struct inode vfs_inode; }; -void proc_init_inodecache(void); - /* * General functions */ @@ -149,16 +134,68 @@ static inline unsigned name_to_int(struct dentry *dentry) return ~0U; } +/* + * Offset of the first process in the /proc root directory.. + */ +#define FIRST_PROCESS_ENTRY 256 + +/* Worst case buffer size needed for holding an integer. */ +#define PROC_NUMBUF 13 + +/* + * array.c + */ +extern const struct file_operations proc_tid_children_operations; + +extern int proc_tid_stat(struct seq_file *, struct pid_namespace *, + struct pid *, struct task_struct *); +extern int proc_tgid_stat(struct seq_file *, struct pid_namespace *, + struct pid *, struct task_struct *); +extern int proc_pid_status(struct seq_file *, struct pid_namespace *, + struct pid *, struct task_struct *); +extern int proc_pid_statm(struct seq_file *, struct pid_namespace *, + struct pid *, struct task_struct *); + /* * base.c */ +extern const struct dentry_operations pid_dentry_operations; +extern int pid_getattr(struct vfsmount *, struct dentry *, struct kstat *); +extern int proc_setattr(struct dentry *, struct iattr *); +extern struct inode *proc_pid_make_inode(struct super_block *, struct task_struct *); +extern int pid_revalidate(struct dentry *, unsigned int); extern int pid_delete_dentry(const struct dentry *); +extern int proc_pid_readdir(struct file *, void *, filldir_t); +extern struct dentry *proc_pid_lookup(struct inode *, struct dentry *, unsigned int); +extern loff_t mem_lseek(struct file *, loff_t, int); -struct dentry *proc_lookup_de(struct proc_dir_entry *de, struct inode *ino, - struct dentry *dentry); -int proc_readdir_de(struct proc_dir_entry *de, struct file *filp, void *dirent, - filldir_t filldir); +/* Lookups */ +typedef struct dentry *instantiate_t(struct inode *, struct dentry *, + struct task_struct *, const void *); +extern int proc_fill_cache(struct file *, void *, filldir_t, const char *, int, + instantiate_t, struct task_struct *, const void *); +/* + * generic.c + */ +extern spinlock_t proc_subdir_lock; + +extern struct dentry *proc_lookup(struct inode *, struct dentry *, unsigned int); +extern struct dentry *proc_lookup_de(struct proc_dir_entry *, struct inode *, + struct dentry *); +extern int proc_readdir(struct file *, void *, filldir_t); +extern int proc_readdir_de(struct proc_dir_entry *, struct file *, void *, filldir_t); + +static inline struct proc_dir_entry *pde_get(struct proc_dir_entry *pde) +{ + atomic_inc(&pde->count); + return pde; +} +extern void pde_put(struct proc_dir_entry *); + +/* + * inode.c + */ struct pde_opener { struct file *file; struct list_head lh; @@ -166,63 +203,74 @@ struct pde_opener { struct completion *c; }; -void proc_entry_rundown(struct proc_dir_entry *); +extern const struct inode_operations proc_pid_link_inode_operations; -extern spinlock_t proc_subdir_lock; - -struct dentry *proc_pid_lookup(struct inode *dir, struct dentry * dentry, unsigned int); -int proc_pid_readdir(struct file * filp, void * dirent, filldir_t filldir); -unsigned long task_vsize(struct mm_struct *); -unsigned long task_statm(struct mm_struct *, - unsigned long *, unsigned long *, unsigned long *, unsigned long *); -void task_mem(struct seq_file *, struct mm_struct *); - -static inline struct proc_dir_entry *pde_get(struct proc_dir_entry *pde) -{ - atomic_inc(&pde->count); - return pde; -} -void pde_put(struct proc_dir_entry *pde); - -int proc_fill_super(struct super_block *); -struct inode *proc_get_inode(struct super_block *, struct proc_dir_entry *); -int proc_remount(struct super_block *sb, int *flags, char *data); +extern void proc_init_inodecache(void); +extern struct inode *proc_get_inode(struct super_block *, struct proc_dir_entry *); +extern int proc_fill_super(struct super_block *); +extern void proc_entry_rundown(struct proc_dir_entry *); /* - * These are generic /proc routines that use the internal - * "struct proc_dir_entry" tree to traverse the filesystem. - * - * The /proc root directory has extended versions to take care - * of the /proc/ subdirectories. + * mmu.c */ -int proc_readdir(struct file *, void *, filldir_t); -struct dentry *proc_lookup(struct inode *, struct dentry *, unsigned int); +struct vmalloc_info { + unsigned long used; + unsigned long largest_chunk; +}; +#ifdef CONFIG_MMU +#define VMALLOC_TOTAL (VMALLOC_END - VMALLOC_START) +extern void get_vmalloc_info(struct vmalloc_info *); - -/* Lookups */ -typedef struct dentry *instantiate_t(struct inode *, struct dentry *, - struct task_struct *, const void *); -int proc_fill_cache(struct file *filp, void *dirent, filldir_t filldir, - const char *name, int len, - instantiate_t instantiate, struct task_struct *task, const void *ptr); -int pid_revalidate(struct dentry *dentry, unsigned int flags); -struct inode *proc_pid_make_inode(struct super_block * sb, struct task_struct *task); -extern const struct dentry_operations pid_dentry_operations; -int pid_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat); -int proc_setattr(struct dentry *dentry, struct iattr *attr); - -extern const struct inode_operations proc_ns_dir_inode_operations; -extern const struct file_operations proc_ns_dir_operations; - -extern int proc_setup_self(struct super_block *); +#else +#define VMALLOC_TOTAL 0UL +static inline void get_vmalloc_info(struct vmalloc_info *vmi) +{ + vmi->used = 0; + vmi->largest_chunk = 0; +} +#endif /* * proc_devtree.c */ #ifdef CONFIG_PROC_DEVICETREE extern void proc_device_tree_init(void); -#endif /* CONFIG_PROC_DEVICETREE */ +#endif + +/* + * proc_namespaces.c + */ +extern const struct inode_operations proc_ns_dir_inode_operations; +extern const struct file_operations proc_ns_dir_operations; + +/* + * proc_net.c + */ +extern const struct file_operations proc_net_operations; +extern const struct inode_operations proc_net_inode_operations; + +#ifdef CONFIG_NET +extern int proc_net_init(void); +#else +static inline int proc_net_init(void) { return 0; } +#endif + +/* + * proc_self.c + */ +extern int proc_setup_self(struct super_block *); + +/* + * proc_sysctl.c + */ +#ifdef CONFIG_PROC_SYSCTL +extern int proc_sys_init(void); +extern void sysctl_head_put(struct ctl_table_header *); +#else +static inline void proc_sys_init(void) { } +static inline void sysctl_head_put(struct ctl_table_header *head) { } +#endif /* * proc_tty.c @@ -232,3 +280,40 @@ extern void proc_tty_init(void); #else static inline void proc_tty_init(void) {} #endif + +/* + * root.c + */ +extern struct proc_dir_entry proc_root; + +extern void proc_self_init(void); +extern int proc_remount(struct super_block *, int *, char *); + +/* + * task_[no]mmu.c + */ +struct proc_maps_private { + struct pid *pid; + struct task_struct *task; +#ifdef CONFIG_MMU + struct vm_area_struct *tail_vma; +#endif +#ifdef CONFIG_NUMA + struct mempolicy *task_mempolicy; +#endif +}; + +extern const struct file_operations proc_pid_maps_operations; +extern const struct file_operations proc_tid_maps_operations; +extern const struct file_operations proc_pid_numa_maps_operations; +extern const struct file_operations proc_tid_numa_maps_operations; +extern const struct file_operations proc_pid_smaps_operations; +extern const struct file_operations proc_tid_smaps_operations; +extern const struct file_operations proc_clear_refs_operations; +extern const struct file_operations proc_pagemap_operations; + +extern unsigned long task_vsize(struct mm_struct *); +extern unsigned long task_statm(struct mm_struct *, + unsigned long *, unsigned long *, + unsigned long *, unsigned long *); +extern void task_mem(struct seq_file *, struct mm_struct *); diff --git a/fs/proc/kcore.c b/fs/proc/kcore.c index 8e6ce830de44..13cf87c4686f 100644 --- a/fs/proc/kcore.c +++ b/fs/proc/kcore.c @@ -28,6 +28,7 @@ #include #include #include +#include "internal.h" #define CORE_STR "CORE" diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h index 2112926de854..608e60a74c3c 100644 --- a/include/linux/proc_fs.h +++ b/include/linux/proc_fs.h @@ -1,149 +1,75 @@ -#ifndef _LINUX_PROC_FS_H -#define _LINUX_PROC_FS_H - -#include -#include -#include -#include -#include -#include - -struct net; -struct completion; -struct mm_struct; - /* * The proc filesystem constants/structures */ +#ifndef _LINUX_PROC_FS_H +#define _LINUX_PROC_FS_H -/* - * Offset of the first process in the /proc root directory.. - */ -#define FIRST_PROCESS_ENTRY 256 +#include +#include -/* Worst case buffer size needed for holding an integer. */ -#define PROC_NUMBUF 13 - -/* - * This is not completely implemented yet. The idea is to - * create an in-memory tree (like the actual /proc filesystem - * tree) of these proc_dir_entries, so that we can dynamically - * add new files to /proc. - * - * The "next" pointer creates a linked list of one /proc directory, - * while parent/subdir create the directory structure (every - * /proc file has a parent, but "subdir" is NULL for all - * non-directory entries). - */ - -struct proc_dir_entry { - unsigned int low_ino; - umode_t mode; - nlink_t nlink; - kuid_t uid; - kgid_t gid; - loff_t size; - const struct inode_operations *proc_iops; - const struct file_operations *proc_fops; - struct proc_dir_entry *next, *parent, *subdir; - void *data; - atomic_t count; /* use count */ - atomic_t in_use; /* number of callers into module in progress; */ - /* negative -> it's going away RSN */ - struct completion *pde_unload_completion; - struct list_head pde_openers; /* who did ->open, but not ->release */ - spinlock_t pde_unload_lock; /* proc_fops checks and pde_users bumps */ - u8 namelen; - char name[]; -}; +struct proc_dir_entry; #ifdef CONFIG_PROC_FS extern void proc_root_init(void); - -void proc_flush_task(struct task_struct *task); - -struct proc_dir_entry *proc_create_data(const char *name, umode_t mode, - struct proc_dir_entry *parent, - const struct file_operations *proc_fops, - void *data); -extern void proc_remove(struct proc_dir_entry *); -extern void remove_proc_entry(const char *name, struct proc_dir_entry *parent); -extern int remove_proc_subtree(const char *name, struct proc_dir_entry *parent); +extern void proc_flush_task(struct task_struct *); extern struct proc_dir_entry *proc_symlink(const char *, struct proc_dir_entry *, const char *); -extern struct proc_dir_entry *proc_mkdir(const char *,struct proc_dir_entry *); +extern struct proc_dir_entry *proc_mkdir(const char *, struct proc_dir_entry *); extern struct proc_dir_entry *proc_mkdir_data(const char *, umode_t, struct proc_dir_entry *, void *); -extern struct proc_dir_entry *proc_mkdir_mode(const char *name, umode_t mode, - struct proc_dir_entry *parent); +extern struct proc_dir_entry *proc_mkdir_mode(const char *, umode_t, + struct proc_dir_entry *); + +extern struct proc_dir_entry *proc_create_data(const char *, umode_t, + struct proc_dir_entry *, + const struct file_operations *, + void *); -static inline struct proc_dir_entry *proc_create(const char *name, umode_t mode, - struct proc_dir_entry *parent, const struct file_operations *proc_fops) +static inline struct proc_dir_entry *proc_create( + const char *name, umode_t mode, struct proc_dir_entry *parent, + const struct file_operations *proc_fops) { return proc_create_data(name, mode, parent, proc_fops, NULL); } - + extern void proc_set_size(struct proc_dir_entry *, loff_t); extern void proc_set_user(struct proc_dir_entry *, kuid_t, kgid_t); extern void *PDE_DATA(const struct inode *); extern void *proc_get_parent_data(const struct inode *); -#else +extern void proc_remove(struct proc_dir_entry *); +extern void remove_proc_entry(const char *, struct proc_dir_entry *); +extern int remove_proc_subtree(const char *, struct proc_dir_entry *); + +#else /* CONFIG_PROC_FS */ static inline void proc_flush_task(struct task_struct *task) { } -#define proc_create(name, mode, parent, fops) ({ (void)(mode), NULL; }) - -static inline struct proc_dir_entry *proc_create_data(const char *name, - umode_t mode, struct proc_dir_entry *parent, - const struct file_operations *proc_fops, void *data) -{ - return NULL; -} -static inline void proc_remove(struct proc_dir_entry *de) {} -#define remove_proc_entry(name, parent) do {} while (0) -#define remove_proc_subtree(name, parent) do {} while (0) - static inline struct proc_dir_entry *proc_symlink(const char *name, - struct proc_dir_entry *parent,const char *dest) {return NULL;} + struct proc_dir_entry *parent,const char *dest) { return NULL;} static inline struct proc_dir_entry *proc_mkdir(const char *name, struct proc_dir_entry *parent) {return NULL;} static inline struct proc_dir_entry *proc_mkdir_data(const char *name, umode_t mode, struct proc_dir_entry *parent, void *data) { return NULL; } static inline struct proc_dir_entry *proc_mkdir_mode(const char *name, umode_t mode, struct proc_dir_entry *parent) { return NULL; } +#define proc_create(name, mode, parent, proc_fops) ({NULL;}) +#define proc_create_data(name, mode, parent, proc_fops, data) ({NULL;}) + static inline void proc_set_size(struct proc_dir_entry *de, loff_t size) {} static inline void proc_set_user(struct proc_dir_entry *de, kuid_t uid, kgid_t gid) {} static inline void *PDE_DATA(const struct inode *inode) {BUG(); return NULL;} +static inline void *proc_get_parent_data(const struct inode *inode) { BUG(); return NULL; } + +static inline void proc_remove(struct proc_dir_entry *de) {} +#define remove_proc_entry(name, parent) do {} while (0) +static inline int remove_proc_subtree(const char *name, struct proc_dir_entry *parent) { return 0; } #endif /* CONFIG_PROC_FS */ - -union proc_op { - int (*proc_get_link)(struct dentry *, struct path *); - int (*proc_read)(struct task_struct *task, char *page); - int (*proc_show)(struct seq_file *m, - struct pid_namespace *ns, struct pid *pid, - struct task_struct *task); -}; - -struct ctl_table_header; -struct ctl_table; - -struct proc_inode { - struct pid *pid; - int fd; - union proc_op op; - struct proc_dir_entry *pde; - struct ctl_table_header *sysctl; - struct ctl_table *sysctl_entry; - struct proc_ns ns; - struct inode vfs_inode; -}; - static inline struct proc_dir_entry *proc_net_mkdir( struct net *net, const char *name, struct proc_dir_entry *parent) { From ac3e3c5b1164397656df81b9e9ab4991184d3236 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 28 Apr 2013 21:42:33 -0400 Subject: [PATCH 204/204] don't bother with deferred freeing of fdtables Signed-off-by: Al Viro --- fs/file.c | 68 ++--------------------------------------- include/linux/fdtable.h | 1 - 2 files changed, 2 insertions(+), 67 deletions(-) diff --git a/fs/file.c b/fs/file.c index 3906d9577a18..4a78f981557a 100644 --- a/fs/file.c +++ b/fs/file.c @@ -23,24 +23,10 @@ #include #include -struct fdtable_defer { - spinlock_t lock; - struct work_struct wq; - struct fdtable *next; -}; - int sysctl_nr_open __read_mostly = 1024*1024; int sysctl_nr_open_min = BITS_PER_LONG; int sysctl_nr_open_max = 1024 * 1024; /* raised later */ -/* - * We use this list to defer free fdtables that have vmalloced - * sets/arrays. By keeping a per-cpu list, we avoid having to embed - * the work_struct in fdtable itself which avoids a 64 byte (i386) increase in - * this per-task structure. - */ -static DEFINE_PER_CPU(struct fdtable_defer, fdtable_defer_list); - static void *alloc_fdmem(size_t size) { /* @@ -67,46 +53,9 @@ static void __free_fdtable(struct fdtable *fdt) kfree(fdt); } -static void free_fdtable_work(struct work_struct *work) -{ - struct fdtable_defer *f = - container_of(work, struct fdtable_defer, wq); - struct fdtable *fdt; - - spin_lock_bh(&f->lock); - fdt = f->next; - f->next = NULL; - spin_unlock_bh(&f->lock); - while(fdt) { - struct fdtable *next = fdt->next; - - __free_fdtable(fdt); - fdt = next; - } -} - static void free_fdtable_rcu(struct rcu_head *rcu) { - struct fdtable *fdt = container_of(rcu, struct fdtable, rcu); - struct fdtable_defer *fddef; - - BUG_ON(!fdt); - BUG_ON(fdt->max_fds <= NR_OPEN_DEFAULT); - - if (!is_vmalloc_addr(fdt->fd) && !is_vmalloc_addr(fdt->open_fds)) { - kfree(fdt->fd); - kfree(fdt->open_fds); - kfree(fdt); - } else { - fddef = &get_cpu_var(fdtable_defer_list); - spin_lock(&fddef->lock); - fdt->next = fddef->next; - fddef->next = fdt; - /* vmallocs are handled from the workqueue context */ - schedule_work(&fddef->wq); - spin_unlock(&fddef->lock); - put_cpu_var(fdtable_defer_list); - } + __free_fdtable(container_of(rcu, struct fdtable, rcu)); } /* @@ -174,7 +123,6 @@ static struct fdtable * alloc_fdtable(unsigned int nr) fdt->open_fds = data; data += nr / BITS_PER_BYTE; fdt->close_on_exec = data; - fdt->next = NULL; return fdt; @@ -221,7 +169,7 @@ static int expand_fdtable(struct files_struct *files, int nr) /* Continue as planned */ copy_fdtable(new_fdt, cur_fdt); rcu_assign_pointer(files->fdt, new_fdt); - if (cur_fdt->max_fds > NR_OPEN_DEFAULT) + if (cur_fdt != &files->fdtab) call_rcu(&cur_fdt->rcu, free_fdtable_rcu); } else { /* Somebody else expanded, so undo our attempt */ @@ -316,7 +264,6 @@ struct files_struct *dup_fd(struct files_struct *oldf, int *errorp) new_fdt->close_on_exec = newf->close_on_exec_init; new_fdt->open_fds = newf->open_fds_init; new_fdt->fd = &newf->fd_array[0]; - new_fdt->next = NULL; spin_lock(&oldf->file_lock); old_fdt = files_fdtable(oldf); @@ -490,19 +437,8 @@ void exit_files(struct task_struct *tsk) } } -static void fdtable_defer_list_init(int cpu) -{ - struct fdtable_defer *fddef = &per_cpu(fdtable_defer_list, cpu); - spin_lock_init(&fddef->lock); - INIT_WORK(&fddef->wq, free_fdtable_work); - fddef->next = NULL; -} - void __init files_defer_init(void) { - int i; - for_each_possible_cpu(i) - fdtable_defer_list_init(i); sysctl_nr_open_max = min((size_t)INT_MAX, ~(size_t)0/sizeof(void *)) & -BITS_PER_LONG; } diff --git a/include/linux/fdtable.h b/include/linux/fdtable.h index fb7dacae0522..085197bd8812 100644 --- a/include/linux/fdtable.h +++ b/include/linux/fdtable.h @@ -27,7 +27,6 @@ struct fdtable { unsigned long *close_on_exec; unsigned long *open_fds; struct rcu_head rcu; - struct fdtable *next; }; static inline bool close_on_exec(int fd, const struct fdtable *fdt)