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Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Browse source 
Pull misc vfs updates from Al Viro:
 "Assorted misc bits and pieces.

  There are several single-topic branches left after this (rename2
  series from Miklos, current_time series from Deepa Dinamani, xattr
  series from Andreas, uaccess stuff from from me) and I'd prefer to
  send those separately"

* 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (39 commits)
  proc: switch auxv to use of __mem_open()
  hpfs: support FIEMAP
  cifs: get rid of unused arguments of CIFSSMBWrite()
  posix_acl: uapi header split
  posix_acl: xattr representation cleanups
  fs/aio.c: eliminate redundant loads in put_aio_ring_file
  fs/internal.h: add const to ns_dentry_operations declaration
  compat: remove compat_printk()
  fs/buffer.c: make __getblk_slow() static
  proc: unsigned file descriptors
  fs/file: more unsigned file descriptors
  fs: compat: remove redundant check of nr_segs
  cachefiles: Fix attempt to read i_blocks after deleting file [ver ]
  cifs: don't use memcpy() to copy struct iov_iter
  get rid of separate multipage fault-in primitives
  fs: Avoid premature clearing of capabilities
  fs: Give dentry to inode_change_ok() instead of inode
  fuse: Propagate dentry down to inode_change_ok()
  ceph: Propagate dentry down to inode_change_ok()
  xfs: Propagate dentry down to inode_change_ok()
  ...
This commit is contained in:
Linus Torvalds 2016-10-10 13:04:49 -07:00
commit abb5a14fa2
136 changed files with 737 additions and 640 deletions

4
Documentation/filesystems/porting
View file

@ -287,8 +287,8 @@ implementing on-disk size changes. Start with a copy of the old inode_setattr
and vmtruncate, and the reorder the vmtruncate + foofs_vmtruncate sequence to
be in order of zeroing blocks using block_truncate_page or similar helpers,
size update and on finally on-disk truncation which should not fail.
inode_change_ok now includes the size checks for ATTR_SIZE and must be called
in the beginning of ->setattr unconditionally.
setattr_prepare (which used to be inode_change_ok) now includes the size checks
for ATTR_SIZE and must be called in the beginning of ->setattr unconditionally.
[mandatory]

2
arch/parisc/kernel/cache.c
View file

@ -345,7 +345,7 @@ void flush_dcache_page(struct page *page)
!= (addr & (SHM_COLOUR - 1))) {
__flush_cache_page(mpnt, addr, page_to_phys(page));
if (old_addr)
printk(KERN_ERR "INEQUIVALENT ALIASES 0x%lx and 0x%lx in file %s\n", old_addr, addr, mpnt->vm_file ? (char *)mpnt->vm_file->f_path.dentry->d_name.name : "(null)");
printk(KERN_ERR "INEQUIVALENT ALIASES 0x%lx and 0x%lx in file %pD\n", old_addr, addr, mpnt->vm_file);
old_addr = addr;
}
}

2
drivers/gpu/drm/armada/armada_gem.c
View file

@ -387,7 +387,7 @@ int armada_gem_pwrite_ioctl(struct drm_device *dev, void *data,
if (!access_ok(VERIFY_READ, ptr, args->size))
return -EFAULT;
ret = fault_in_multipages_readable(ptr, args->size);
ret = fault_in_pages_readable(ptr, args->size);
if (ret)
return ret;

4
drivers/gpu/drm/drm_debugfs.c
View file

@ -104,8 +104,8 @@ int drm_debugfs_create_files(const struct drm_info_list *files, int count,
ent = debugfs_create_file(files[i].name, S_IFREG | S_IRUGO,
root, tmp, &drm_debugfs_fops);
if (!ent) {
DRM_ERROR("Cannot create /sys/kernel/debug/dri/%s/%s\n",
root->d_name.name, files[i].name);
DRM_ERROR("Cannot create /sys/kernel/debug/dri/%pd/%s\n",
root, files[i].name);
kfree(tmp);
ret = -1;
goto fail;

6
drivers/gpu/drm/i915/i915_gem.c
View file

@ -675,7 +675,7 @@ i915_gem_gtt_pread(struct drm_device *dev,
mutex_unlock(&dev->struct_mutex);
if (likely(!i915.prefault_disable)) {
ret = fault_in_multipages_writeable(user_data, remain);
ret = fault_in_pages_writeable(user_data, remain);
if (ret) {
mutex_lock(&dev->struct_mutex);
goto out_unpin;
@ -803,7 +803,7 @@ i915_gem_shmem_pread(struct drm_device *dev,
mutex_unlock(&dev->struct_mutex);
if (likely(!i915.prefault_disable) && !prefaulted) {
ret = fault_in_multipages_writeable(user_data, remain);
ret = fault_in_pages_writeable(user_data, remain);
/* Userspace is tricking us, but we've already clobbered
* its pages with the prefault and promised to write the
* data up to the first fault. Hence ignore any errors
@ -1267,7 +1267,7 @@ i915_gem_pwrite_ioctl(struct drm_device *dev, void *data,
return -EFAULT;
if (likely(!i915.prefault_disable)) {
ret = fault_in_multipages_readable(u64_to_user_ptr(args->data_ptr),
ret = fault_in_pages_readable(u64_to_user_ptr(args->data_ptr),
args->size);
if (ret)
return -EFAULT;

2
drivers/gpu/drm/i915/i915_gem_execbuffer.c
View file

@ -1048,7 +1048,7 @@ validate_exec_list(struct drm_device *dev,
return -EFAULT;
if (likely(!i915.prefault_disable)) {
if (fault_in_multipages_readable(ptr, length))
if (fault_in_pages_readable(ptr, length))
return -EFAULT;
}
}

4
drivers/gpu/drm/msm/msm_perf.c
View file

@ -229,8 +229,8 @@ int msm_perf_debugfs_init(struct drm_minor *minor)
perf->ent = debugfs_create_file("perf", S_IFREG | S_IRUGO,
minor->debugfs_root, perf, &perf_debugfs_fops);
if (!perf->ent) {
DRM_ERROR("Cannot create /sys/kernel/debug/dri/%s/perf\n",
minor->debugfs_root->d_name.name);
DRM_ERROR("Cannot create /sys/kernel/debug/dri/%pd/perf\n",
minor->debugfs_root);
goto fail;
}

4
drivers/gpu/drm/msm/msm_rd.c
View file

@ -243,8 +243,8 @@ int msm_rd_debugfs_init(struct drm_minor *minor)
rd->ent = debugfs_create_file("rd", S_IFREG | S_IRUGO,
minor->debugfs_root, rd, &rd_debugfs_fops);
if (!rd->ent) {
DRM_ERROR("Cannot create /sys/kernel/debug/dri/%s/rd\n",
minor->debugfs_root->d_name.name);
DRM_ERROR("Cannot create /sys/kernel/debug/dri/%pd/rd\n",
minor->debugfs_root);
goto fail;
}

6
drivers/net/wireless/intel/iwlwifi/dvm/debugfs.c
View file

@ -2422,14 +2422,12 @@ int iwl_dbgfs_register(struct iwl_priv *priv, struct dentry *dbgfs_dir)
*/
if (priv->mac80211_registered) {
char buf[100];
struct dentry *mac80211_dir, *dev_dir, *root_dir;
struct dentry *mac80211_dir, *dev_dir;
dev_dir = dbgfs_dir->d_parent;
root_dir = dev_dir->d_parent;
mac80211_dir = priv->hw->wiphy->debugfsdir;
snprintf(buf, 100, "../../%s/%s", root_dir->d_name.name,
dev_dir->d_name.name);
snprintf(buf, 100, "../../%pd2", dev_dir);
if (!debugfs_create_symlink("iwlwifi", mac80211_dir, buf))
goto err;

16
drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c
View file

@ -1571,8 +1571,8 @@ void iwl_mvm_vif_dbgfs_register(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
mvmvif->dbgfs_dir = debugfs_create_dir("iwlmvm", dbgfs_dir);
if (!mvmvif->dbgfs_dir) {
IWL_ERR(mvm, "Failed to create debugfs directory under %s\n",
dbgfs_dir->d_name.name);
IWL_ERR(mvm, "Failed to create debugfs directory under %pd\n",
dbgfs_dir);
return;
}
@ -1627,17 +1627,15 @@ void iwl_mvm_vif_dbgfs_register(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
* find
* netdev:wlan0 -> ../../../ieee80211/phy0/netdev:wlan0/iwlmvm/
*/
snprintf(buf, 100, "../../../%s/%s/%s/%s",
dbgfs_dir->d_parent->d_parent->d_name.name,
dbgfs_dir->d_parent->d_name.name,
dbgfs_dir->d_name.name,
mvmvif->dbgfs_dir->d_name.name);
snprintf(buf, 100, "../../../%pd3/%pd",
dbgfs_dir,
mvmvif->dbgfs_dir);
mvmvif->dbgfs_slink = debugfs_create_symlink(dbgfs_dir->d_name.name,
mvm->debugfs_dir, buf);
if (!mvmvif->dbgfs_slink)
IWL_ERR(mvm, "Can't create debugfs symbolic link under %s\n",
dbgfs_dir->d_name.name);
IWL_ERR(mvm, "Can't create debugfs symbolic link under %pd\n",
dbgfs_dir);
return;
err:
IWL_ERR(mvm, "Can't create debugfs entity\n");

4
drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c
View file

@ -1748,9 +1748,7 @@ int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir)
* Create a symlink with mac80211. It will be removed when mac80211
* exists (before the opmode exists which removes the target.)
*/
snprintf(buf, 100, "../../%s/%s",
dbgfs_dir->d_parent->d_parent->d_name.name,
dbgfs_dir->d_parent->d_name.name);
snprintf(buf, 100, "../../%pd2", dbgfs_dir->d_parent);
if (!debugfs_create_symlink("iwlwifi", mvm->hw->wiphy->debugfsdir, buf))
goto err;

6
drivers/staging/lustre/lustre/include/lustre_acl.h
View file

@ -38,8 +38,8 @@
#include <linux/posix_acl_xattr.h>
#define LUSTRE_POSIX_ACL_MAX_ENTRIES 32
#define LUSTRE_POSIX_ACL_MAX_SIZE \
(sizeof(posix_acl_xattr_header) + \
LUSTRE_POSIX_ACL_MAX_ENTRIES * sizeof(posix_acl_xattr_entry))
#define LUSTRE_POSIX_ACL_MAX_SIZE \
(sizeof(struct posix_acl_xattr_header) + \
LUSTRE_POSIX_ACL_MAX_ENTRIES * sizeof(struct posix_acl_xattr_entry))
#endif

4
drivers/staging/lustre/lustre/llite/file.c
View file

@ -1121,8 +1121,8 @@ ll_file_io_generic(const struct lu_env *env, struct vvp_io_args *args,
struct cl_io *io;
ssize_t result;
CDEBUG(D_VFSTRACE, "file: %s, type: %d ppos: %llu, count: %zu\n",
file->f_path.dentry->d_name.name, iot, *ppos, count);
CDEBUG(D_VFSTRACE, "file: %pD, type: %d ppos: %llu, count: %zu\n",
file, iot, *ppos, count);
restart:
io = vvp_env_thread_io(env);

2
drivers/staging/lustre/lustre/llite/llite_lib.c
View file

@ -1459,7 +1459,7 @@ int ll_setattr_raw(struct dentry *dentry, struct iattr *attr, bool hsm_import)
attr->ia_valid |= ATTR_MTIME | ATTR_CTIME;
}
/* POSIX: check before ATTR_*TIME_SET set (from inode_change_ok) */
/* POSIX: check before ATTR_*TIME_SET set (from setattr_prepare) */
if (attr->ia_valid & TIMES_SET_FLAGS) {
if ((!uid_eq(current_fsuid(), inode->i_uid)) &&
!capable(CFS_CAP_FOWNER))

44
drivers/staging/lustre/lustre/ptlrpc/wiretest.c
View file

@ -3742,32 +3742,28 @@ void lustre_assert_wire_constants(void)
CLASSERT(FIEMAP_EXTENT_NET == 0x80000000);
/* Checks for type posix_acl_xattr_entry */
LASSERTF((int)sizeof(posix_acl_xattr_entry) == 8, "found %lld\n",
(long long)(int)sizeof(posix_acl_xattr_entry));
LASSERTF((int)offsetof(posix_acl_xattr_entry, e_tag) == 0, "found %lld\n",
(long long)(int)offsetof(posix_acl_xattr_entry, e_tag));
LASSERTF((int)sizeof(((posix_acl_xattr_entry *)0)->e_tag) == 2, "found %lld\n",
(long long)(int)sizeof(((posix_acl_xattr_entry *)0)->e_tag));
LASSERTF((int)offsetof(posix_acl_xattr_entry, e_perm) == 2, "found %lld\n",
(long long)(int)offsetof(posix_acl_xattr_entry, e_perm));
LASSERTF((int)sizeof(((posix_acl_xattr_entry *)0)->e_perm) == 2, "found %lld\n",
(long long)(int)sizeof(((posix_acl_xattr_entry *)0)->e_perm));
LASSERTF((int)offsetof(posix_acl_xattr_entry, e_id) == 4, "found %lld\n",
(long long)(int)offsetof(posix_acl_xattr_entry, e_id));
LASSERTF((int)sizeof(((posix_acl_xattr_entry *)0)->e_id) == 4, "found %lld\n",
(long long)(int)sizeof(((posix_acl_xattr_entry *)0)->e_id));
LASSERTF((int)sizeof(struct posix_acl_xattr_entry) == 8, "found %lld\n",
(long long)(int)sizeof(struct posix_acl_xattr_entry));
LASSERTF((int)offsetof(struct posix_acl_xattr_entry, e_tag) == 0, "found %lld\n",
(long long)(int)offsetof(struct posix_acl_xattr_entry, e_tag));
LASSERTF((int)sizeof(((struct posix_acl_xattr_entry *)0)->e_tag) == 2, "found %lld\n",
(long long)(int)sizeof(((struct posix_acl_xattr_entry *)0)->e_tag));
LASSERTF((int)offsetof(struct posix_acl_xattr_entry, e_perm) == 2, "found %lld\n",
(long long)(int)offsetof(struct posix_acl_xattr_entry, e_perm));
LASSERTF((int)sizeof(((struct posix_acl_xattr_entry *)0)->e_perm) == 2, "found %lld\n",
(long long)(int)sizeof(((struct posix_acl_xattr_entry *)0)->e_perm));
LASSERTF((int)offsetof(struct posix_acl_xattr_entry, e_id) == 4, "found %lld\n",
(long long)(int)offsetof(struct posix_acl_xattr_entry, e_id));
LASSERTF((int)sizeof(((struct posix_acl_xattr_entry *)0)->e_id) == 4, "found %lld\n",
(long long)(int)sizeof(((struct posix_acl_xattr_entry *)0)->e_id));
/* Checks for type posix_acl_xattr_header */
LASSERTF((int)sizeof(posix_acl_xattr_header) == 4, "found %lld\n",
(long long)(int)sizeof(posix_acl_xattr_header));
LASSERTF((int)offsetof(posix_acl_xattr_header, a_version) == 0, "found %lld\n",
(long long)(int)offsetof(posix_acl_xattr_header, a_version));
LASSERTF((int)sizeof(((posix_acl_xattr_header *)0)->a_version) == 4, "found %lld\n",
(long long)(int)sizeof(((posix_acl_xattr_header *)0)->a_version));
LASSERTF((int)offsetof(posix_acl_xattr_header, a_entries) == 4, "found %lld\n",
(long long)(int)offsetof(posix_acl_xattr_header, a_entries));
LASSERTF((int)sizeof(((posix_acl_xattr_header *)0)->a_entries) == 0, "found %lld\n",
(long long)(int)sizeof(((posix_acl_xattr_header *)0)->a_entries));
LASSERTF((int)sizeof(struct posix_acl_xattr_header) == 4, "found %lld\n",
(long long)(int)sizeof(struct posix_acl_xattr_header));
LASSERTF((int)offsetof(struct posix_acl_xattr_header, a_version) == 0, "found %lld\n",
(long long)(int)offsetof(struct posix_acl_xattr_header, a_version));
LASSERTF((int)sizeof(((struct posix_acl_xattr_header *)0)->a_version) == 4, "found %lld\n",
(long long)(int)sizeof(((struct posix_acl_xattr_header *)0)->a_version));
/* Checks for struct link_ea_header */
LASSERTF((int)sizeof(struct link_ea_header) == 24, "found %lld\n",

40
fs/9p/acl.c
View file

@ -276,32 +276,26 @@ static int v9fs_xattr_set_acl(const struct xattr_handler *handler,
switch (handler->flags) {
case ACL_TYPE_ACCESS:
if (acl) {
umode_t mode = inode->i_mode;
retval = posix_acl_equiv_mode(acl, &mode);
if (retval < 0)
struct iattr iattr;
retval = posix_acl_update_mode(inode, &iattr.ia_mode, &acl);
if (retval)
goto err_out;
else {
struct iattr iattr;
if (retval == 0) {
/*
* ACL can be represented
* by the mode bits. So don't
* update ACL.
*/
acl = NULL;
value = NULL;
size = 0;
}
/* Updte the mode bits */
iattr.ia_mode = ((mode & S_IALLUGO) |
(inode->i_mode & ~S_IALLUGO));
iattr.ia_valid = ATTR_MODE;
/* FIXME should we update ctime ?
* What is the following setxattr update the
* mode ?
if (!acl) {
/*
* ACL can be represented
* by the mode bits. So don't
* update ACL.
*/
v9fs_vfs_setattr_dotl(dentry, &iattr);
value = NULL;
size = 0;
}
iattr.ia_valid = ATTR_MODE;
/* FIXME should we update ctime ?
* What is the following setxattr update the
* mode ?
*/
v9fs_vfs_setattr_dotl(dentry, &iattr);
}
break;
case ACL_TYPE_DEFAULT:

2
fs/9p/vfs_inode.c
View file

@ -1094,7 +1094,7 @@ static int v9fs_vfs_setattr(struct dentry *dentry, struct iattr *iattr)
struct p9_wstat wstat;
p9_debug(P9_DEBUG_VFS, "\n");
retval = inode_change_ok(d_inode(dentry), iattr);
retval = setattr_prepare(dentry, iattr);
if (retval)
return retval;

2
fs/9p/vfs_inode_dotl.c
View file

@ -558,7 +558,7 @@ int v9fs_vfs_setattr_dotl(struct dentry *dentry, struct iattr *iattr)
p9_debug(P9_DEBUG_VFS, "\n");
retval = inode_change_ok(inode, iattr);
retval = setattr_prepare(dentry, iattr);
if (retval)
return retval;

2
fs/adfs/inode.c
View file

@ -303,7 +303,7 @@ adfs_notify_change(struct dentry *dentry, struct iattr *attr)
unsigned int ia_valid = attr->ia_valid;
int error;
error = inode_change_ok(inode, attr);
error = setattr_prepare(dentry, attr);
/*
* we can't change the UID or GID of any file -

2
fs/affs/inode.c
View file

@ -219,7 +219,7 @@ affs_notify_change(struct dentry *dentry, struct iattr *attr)
pr_debug("notify_change(%lu,0x%x)\n", inode->i_ino, attr->ia_valid);
error = inode_change_ok(inode,attr);
error = setattr_prepare(dentry, attr);
if (error)
goto out;

9
fs/aio.c
View file

@ -274,14 +274,17 @@ __initcall(aio_setup);
static void put_aio_ring_file(struct kioctx *ctx)
{
struct file *aio_ring_file = ctx->aio_ring_file;
struct address_space *i_mapping;
if (aio_ring_file) {
truncate_setsize(aio_ring_file->f_inode, 0);
/* Prevent further access to the kioctx from migratepages */
spin_lock(&aio_ring_file->f_inode->i_mapping->private_lock);
aio_ring_file->f_inode->i_mapping->private_data = NULL;
i_mapping = aio_ring_file->f_inode->i_mapping;
spin_lock(&i_mapping->private_lock);
i_mapping->private_data = NULL;
ctx->aio_ring_file = NULL;
spin_unlock(&aio_ring_file->f_inode->i_mapping->private_lock);
spin_unlock(&i_mapping->private_lock);
fput(aio_ring_file);
}

50
fs/attr.c
View file

@ -17,19 +17,22 @@
#include <linux/ima.h>
/**
* inode_change_ok - check if attribute changes to an inode are allowed
* @inode: inode to check
* setattr_prepare - check if attribute changes to a dentry are allowed
* @dentry: dentry to check
* @attr: attributes to change
*
* Check if we are allowed to change the attributes contained in @attr
* in the given inode. This includes the normal unix access permission
* checks, as well as checks for rlimits and others.
* in the given dentry. This includes the normal unix access permission
* checks, as well as checks for rlimits and others. The function also clears
* SGID bit from mode if user is not allowed to set it. Also file capabilities
* and IMA extended attributes are cleared if ATTR_KILL_PRIV is set.
*
* Should be called as the first thing in ->setattr implementations,
* possibly after taking additional locks.
*/
int inode_change_ok(const struct inode *inode, struct iattr *attr)
int setattr_prepare(struct dentry *dentry, struct iattr *attr)
{
struct inode *inode = d_inode(dentry);
unsigned int ia_valid = attr->ia_valid;
/*
@ -44,7 +47,7 @@ int inode_change_ok(const struct inode *inode, struct iattr *attr)
/* If force is set do it anyway. */
if (ia_valid & ATTR_FORCE)
return 0;
goto kill_priv;
/* Make sure a caller can chown. */
if ((ia_valid & ATTR_UID) &&
@ -77,9 +80,19 @@ int inode_change_ok(const struct inode *inode, struct iattr *attr)
return -EPERM;
}
kill_priv:
/* User has permission for the change */
if (ia_valid & ATTR_KILL_PRIV) {
int error;
error = security_inode_killpriv(dentry);
if (error)
return error;
}
return 0;
}
EXPORT_SYMBOL(inode_change_ok);
EXPORT_SYMBOL(setattr_prepare);
/**
* inode_newsize_ok - may this inode be truncated to a given size
@ -202,6 +215,21 @@ int notify_change(struct dentry * dentry, struct iattr * attr, struct inode **de
return -EPERM;
}
/*
* If utimes(2) and friends are called with times == NULL (or both
* times are UTIME_NOW), then we need to check for write permission
*/
if (ia_valid & ATTR_TOUCH) {
if (IS_IMMUTABLE(inode))
return -EPERM;
if (!inode_owner_or_capable(inode)) {
error = inode_permission(inode, MAY_WRITE);
if (error)
return error;
}
}
if ((ia_valid & ATTR_MODE)) {
umode_t amode = attr->ia_mode;
/* Flag setting protected by i_mutex */
@ -217,13 +245,11 @@ int notify_change(struct dentry * dentry, struct iattr * attr, struct inode **de
if (!(ia_valid & ATTR_MTIME_SET))
attr->ia_mtime = now;
if (ia_valid & ATTR_KILL_PRIV) {
attr->ia_valid &= ~ATTR_KILL_PRIV;
ia_valid &= ~ATTR_KILL_PRIV;
error = security_inode_need_killpriv(dentry);
if (error > 0)
error = security_inode_killpriv(dentry);
if (error)
if (error < 0)
return error;
if (error == 0)
ia_valid = attr->ia_valid &= ~ATTR_KILL_PRIV;
}
/*

6
fs/btrfs/acl.c
View file

@ -79,11 +79,9 @@ static int __btrfs_set_acl(struct btrfs_trans_handle *trans,
case ACL_TYPE_ACCESS:
name = XATTR_NAME_POSIX_ACL_ACCESS;
if (acl) {
ret = posix_acl_equiv_mode(acl, &inode->i_mode);
if (ret < 0)
ret = posix_acl_update_mode(inode, &inode->i_mode, &acl);
if (ret)
return ret;
if (ret == 0)
acl = NULL;
}
ret = 0;
break;

1
fs/btrfs/ctree.h
View file

@ -3161,7 +3161,6 @@ int btrfs_prealloc_file_range_trans(struct inode *inode,
struct btrfs_trans_handle *trans, int mode,
u64 start, u64 num_bytes, u64 min_size,
loff_t actual_len, u64 *alloc_hint);
int btrfs_inode_check_errors(struct inode *inode);
extern const struct dentry_operations btrfs_dentry_operations;
#ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS
void btrfs_test_inode_set_ops(struct inode *inode);

2
fs/btrfs/file.c
View file

@ -2040,7 +2040,7 @@ int btrfs_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
* flags for any errors that might have happened while doing
* writeback of file data.
*/
ret = btrfs_inode_check_errors(inode);
ret = filemap_check_errors(inode->i_mapping);
inode_unlock(inode);
goto out;
}

17
fs/btrfs/inode.c
View file

@ -5072,7 +5072,7 @@ static int btrfs_setattr(struct dentry *dentry, struct iattr *attr)
if (btrfs_root_readonly(root))
return -EROFS;
err = inode_change_ok(inode, attr);
err = setattr_prepare(dentry, attr);
if (err)
return err;
@ -10544,21 +10544,6 @@ static int btrfs_tmpfile(struct inode *dir, struct dentry *dentry, umode_t mode)
}
/* Inspired by filemap_check_errors() */
int btrfs_inode_check_errors(struct inode *inode)
{
int ret = 0;
if (test_bit(AS_ENOSPC, &inode->i_mapping->flags) &&
test_and_clear_bit(AS_ENOSPC, &inode->i_mapping->flags))
ret = -ENOSPC;
if (test_bit(AS_EIO, &inode->i_mapping->flags) &&
test_and_clear_bit(AS_EIO, &inode->i_mapping->flags))
ret = -EIO;
return ret;
}
static const struct inode_operations btrfs_dir_inode_operations = {
.getattr = btrfs_getattr,
.lookup = btrfs_lookup,

2
fs/btrfs/send.c
View file

@ -4329,7 +4329,7 @@ static int __process_new_xattr(int num, struct btrfs_key *di_key,
int ret;
struct send_ctx *sctx = ctx;
struct fs_path *p;
posix_acl_xattr_header dummy_acl;
struct posix_acl_xattr_header dummy_acl;
p = fs_path_alloc();
if (!p)

4
fs/btrfs/tree-log.c
View file

@ -3961,7 +3961,7 @@ static int wait_ordered_extents(struct btrfs_trans_handle *trans,
* i_mapping flags, so that the next fsync won't get
* an outdated io error too.
*/
btrfs_inode_check_errors(inode);
filemap_check_errors(inode->i_mapping);
*ordered_io_error = true;
break;
}
@ -4198,7 +4198,7 @@ static int btrfs_log_changed_extents(struct btrfs_trans_handle *trans,
* without writing to the log tree and the fsync must report the
* file data write error and not commit the current transaction.
*/
ret = btrfs_inode_check_errors(inode);
ret = filemap_check_errors(inode->i_mapping);
if (ret)
ctx->io_err = ret;
process:

3
fs/buffer.c
View file

@ -1078,7 +1078,7 @@ grow_buffers(struct block_device *bdev, sector_t block, int size, gfp_t gfp)
return grow_dev_page(bdev, block, index, size, sizebits, gfp);
}
struct buffer_head *
static struct buffer_head *
__getblk_slow(struct block_device *bdev, sector_t block,
unsigned size, gfp_t gfp)
{
@ -1109,7 +1109,6 @@ __getblk_slow(struct block_device *bdev, sector_t block,
free_more_memory();
}
}
EXPORT_SYMBOL(__getblk_slow);
/*
* The relationship between dirty buffers and dirty pages:

8
fs/cachefiles/interface.c
View file

@ -253,6 +253,8 @@ static void cachefiles_drop_object(struct fscache_object *_object)
struct cachefiles_object *object;
struct cachefiles_cache *cache;
const struct cred *saved_cred;
struct inode *inode;
blkcnt_t i_blocks = 0;
ASSERT(_object);
@ -279,6 +281,10 @@ static void cachefiles_drop_object(struct fscache_object *_object)
_object != cache->cache.fsdef
) {
_debug("- retire object OBJ%x", object->fscache.debug_id);
inode = d_backing_inode(object->dentry);
if (inode)
i_blocks = inode->i_blocks;
cachefiles_begin_secure(cache, &saved_cred);
cachefiles_delete_object(cache, object);
cachefiles_end_secure(cache, saved_cred);
@ -292,7 +298,7 @@ static void cachefiles_drop_object(struct fscache_object *_object)
/* note that the object is now inactive */
if (test_bit(CACHEFILES_OBJECT_ACTIVE, &object->flags))
cachefiles_mark_object_inactive(cache, object);
cachefiles_mark_object_inactive(cache, object, i_blocks);
dput(object->dentry);
object->dentry = NULL;

3
fs/cachefiles/internal.h
View file

@ -160,7 +160,8 @@ extern char *cachefiles_cook_key(const u8 *raw, int keylen, uint8_t type);
* namei.c
*/
extern void cachefiles_mark_object_inactive(struct cachefiles_cache *cache,
struct cachefiles_object *object);
struct cachefiles_object *object,
blkcnt_t i_blocks);
extern int cachefiles_delete_object(struct cachefiles_cache *cache,
struct cachefiles_object *object);
extern int cachefiles_walk_to_object(struct cachefiles_object *parent,

8
fs/cachefiles/namei.c
View file

@ -261,10 +261,9 @@ static int cachefiles_mark_object_active(struct cachefiles_cache *cache,
* Mark an object as being inactive.
*/
void cachefiles_mark_object_inactive(struct cachefiles_cache *cache,
struct cachefiles_object *object)
struct cachefiles_object *object,
blkcnt_t i_blocks)
{
blkcnt_t i_blocks = d_backing_inode(object->dentry)->i_blocks;
write_lock(&cache->active_lock);
rb_erase(&object->active_node, &cache->active_nodes);
clear_bit(CACHEFILES_OBJECT_ACTIVE, &object->flags);
@ -707,7 +706,8 @@ int cachefiles_walk_to_object(struct cachefiles_object *parent,
check_error:
_debug("check error %d", ret);
cachefiles_mark_object_inactive(cache, object);
cachefiles_mark_object_inactive(
cache, object, d_backing_inode(object->dentry)->i_blocks);
release_dentry:
dput(object->dentry);
object->dentry = NULL;

11
fs/ceph/acl.c
View file

@ -95,11 +95,9 @@ int ceph_set_acl(struct inode *inode, struct posix_acl *acl, int type)
case ACL_TYPE_ACCESS:
name = XATTR_NAME_POSIX_ACL_ACCESS;
if (acl) {
ret = posix_acl_equiv_mode(acl, &new_mode);
if (ret < 0)
ret = posix_acl_update_mode(inode, &new_mode, &acl);
if (ret)
goto out;
if (ret == 0)
acl = NULL;
}
break;
case ACL_TYPE_DEFAULT:
@ -127,6 +125,11 @@ int ceph_set_acl(struct inode *inode, struct posix_acl *acl, int type)
goto out_free;
}
if (ceph_snap(inode) != CEPH_NOSNAP) {
ret = -EROFS;
goto out_free;
}
if (new_mode != old_mode) {
newattrs.ia_mode = new_mode;
newattrs.ia_valid = ATTR_MODE;

19
fs/ceph/inode.c
View file

@ -1905,13 +1905,6 @@ int __ceph_setattr(struct inode *inode, struct iattr *attr)
int inode_dirty_flags = 0;
bool lock_snap_rwsem = false;
if (ceph_snap(inode) != CEPH_NOSNAP)
return -EROFS;
err = inode_change_ok(inode, attr);
if (err != 0)
return err;
prealloc_cf = ceph_alloc_cap_flush();
if (!prealloc_cf)
return -ENOMEM;
@ -2124,7 +2117,17 @@ int __ceph_setattr(struct inode *inode, struct iattr *attr)
*/
int ceph_setattr(struct dentry *dentry, struct iattr *attr)
{
return __ceph_setattr(d_inode(dentry), attr);
struct inode *inode = d_inode(dentry);
int err;
if (ceph_snap(inode) != CEPH_NOSNAP)
return -EROFS;
err = setattr_prepare(dentry, attr);
if (err != 0)
return err;
return __ceph_setattr(inode, attr);
}
/*

10
fs/cifs/cifsfs.h
View file

@ -41,6 +41,16 @@ cifs_uniqueid_to_ino_t(u64 fileid)
}
static inline void cifs_set_time(struct dentry *dentry, unsigned long time)
{
dentry->d_fsdata = (void *) time;
}
static inline unsigned long cifs_get_time(struct dentry *dentry)
{
return (unsigned long) dentry->d_fsdata;
}
extern struct file_system_type cifs_fs_type;
extern const struct address_space_operations cifs_addr_ops;
extern const struct address_space_operations cifs_addr_ops_smallbuf;

3
fs/cifs/cifsproto.h
View file

@ -392,8 +392,7 @@ extern int CIFSSMBRead(const unsigned int xid, struct cifs_io_parms *io_parms,
unsigned int *nbytes, char **buf,
int *return_buf_type);
extern int CIFSSMBWrite(const unsigned int xid, struct cifs_io_parms *io_parms,
unsigned int *nbytes, const char *buf,
const char __user *ubuf, const int long_op);
unsigned int *nbytes, const char *buf);
extern int CIFSSMBWrite2(const unsigned int xid, struct cifs_io_parms *io_parms,
unsigned int *nbytes, struct kvec *iov, const int nvec);
extern int CIFSGetSrvInodeNumber(const unsigned int xid, struct cifs_tcon *tcon,

27
fs/cifs/cifssmb.c
View file

@ -1228,7 +1228,6 @@ SMBLegacyOpen(const unsigned int xid, struct cifs_tcon *tcon,
inc_rfc1001_len(pSMB, count);
pSMB->ByteCount = cpu_to_le16(count);
/* long_op set to 1 to allow for oplock break timeouts */
rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
(struct smb_hdr *)pSMBr, &bytes_returned, 0);
cifs_stats_inc(&tcon->stats.cifs_stats.num_opens);
@ -1768,8 +1767,7 @@ CIFSSMBRead(const unsigned int xid, struct cifs_io_parms *io_parms,
int
CIFSSMBWrite(const unsigned int xid, struct cifs_io_parms *io_parms,
unsigned int *nbytes, const char *buf,
const char __user *ubuf, const int long_op)
unsigned int *nbytes, const char *buf)
{
int rc = -EACCES;
WRITE_REQ *pSMB = NULL;
@ -1838,12 +1836,7 @@ CIFSSMBWrite(const unsigned int xid, struct cifs_io_parms *io_parms,
cpu_to_le16(offsetof(struct smb_com_write_req, Data) - 4);
if (buf)
memcpy(pSMB->Data, buf, bytes_sent);
else if (ubuf) {
if (copy_from_user(pSMB->Data, ubuf, bytes_sent)) {
cifs_buf_release(pSMB);
return -EFAULT;
}
} else if (count != 0) {
else if (count != 0) {
/* No buffer */
cifs_buf_release(pSMB);
return -EINVAL;
@ -1867,7 +1860,7 @@ CIFSSMBWrite(const unsigned int xid, struct cifs_io_parms *io_parms,
}
rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
(struct smb_hdr *) pSMBr, &bytes_returned, long_op);
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
cifs_stats_inc(&tcon->stats.cifs_stats.num_writes);
if (rc) {
cifs_dbg(FYI, "Send error in write = %d\n", rc);
@ -3334,7 +3327,7 @@ CIFSSMB_set_compression(const unsigned int xid, struct cifs_tcon *tcon,
#ifdef CONFIG_CIFS_POSIX
/*Convert an Access Control Entry from wire format to local POSIX xattr format*/
static void cifs_convert_ace(posix_acl_xattr_entry *ace,
static void cifs_convert_ace(struct posix_acl_xattr_entry *ace,
struct cifs_posix_ace *cifs_ace)
{
/* u8 cifs fields do not need le conversion */
@ -3358,7 +3351,7 @@ static int cifs_copy_posix_acl(char *trgt, char *src, const int buflen,
__u16 count;
struct cifs_posix_ace *pACE;
struct cifs_posix_acl *cifs_acl = (struct cifs_posix_acl *)src;
posix_acl_xattr_header *local_acl = (posix_acl_xattr_header *)trgt;
struct posix_acl_xattr_header *local_acl = (void *)trgt;
if (le16_to_cpu(cifs_acl->version) != CIFS_ACL_VERSION)
return -EOPNOTSUPP;
@ -3396,9 +3389,11 @@ static int cifs_copy_posix_acl(char *trgt, char *src, const int buflen,
} else if (size > buflen) {
return -ERANGE;
} else /* buffer big enough */ {
struct posix_acl_xattr_entry *ace = (void *)(local_acl + 1);
local_acl->a_version = cpu_to_le32(POSIX_ACL_XATTR_VERSION);
for (i = 0; i < count ; i++) {
cifs_convert_ace(&local_acl->a_entries[i], pACE);
cifs_convert_ace(&ace[i], pACE);
pACE++;
}
}
@ -3406,7 +3401,7 @@ static int cifs_copy_posix_acl(char *trgt, char *src, const int buflen,
}
static __u16 convert_ace_to_cifs_ace(struct cifs_posix_ace *cifs_ace,
const posix_acl_xattr_entry *local_ace)
const struct posix_acl_xattr_entry *local_ace)
{
__u16 rc = 0; /* 0 = ACL converted ok */
@ -3431,7 +3426,7 @@ static __u16 ACL_to_cifs_posix(char *parm_data, const char *pACL,
{
__u16 rc = 0;
struct cifs_posix_acl *cifs_acl = (struct cifs_posix_acl *)parm_data;
posix_acl_xattr_header *local_acl = (posix_acl_xattr_header *)pACL;
struct posix_acl_xattr_header *local_acl = (void *)pACL;
int count;
int i;
@ -3459,7 +3454,7 @@ static __u16 ACL_to_cifs_posix(char *parm_data, const char *pACL,
}
for (i = 0; i < count; i++) {
rc = convert_ace_to_cifs_ace(&cifs_acl->ace_array[i],
&local_acl->a_entries[i]);
(struct posix_acl_xattr_entry *)(local_acl + 1));
if (rc != 0) {
/* ACE not converted */
break;

6
fs/cifs/dir.c
View file

@ -40,7 +40,7 @@ renew_parental_timestamps(struct dentry *direntry)
/* BB check if there is a way to get the kernel to do this or if we
really need this */
do {
direntry->d_time = jiffies;
cifs_set_time(direntry, jiffies);
direntry = direntry->d_parent;
} while (!IS_ROOT(direntry));
}
@ -802,7 +802,7 @@ cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry,
} else if (rc == -ENOENT) {
rc = 0;
direntry->d_time = jiffies;
cifs_set_time(direntry, jiffies);
d_add(direntry, NULL);
/* if it was once a directory (but how can we tell?) we could do
shrink_dcache_parent(direntry); */
@ -862,7 +862,7 @@ cifs_d_revalidate(struct dentry *direntry, unsigned int flags)
if (flags & (LOOKUP_CREATE | LOOKUP_RENAME_TARGET))
return 0;
if (time_after(jiffies, direntry->d_time + HZ) || !lookupCacheEnabled)
if (time_after(jiffies, cifs_get_time(direntry) + HZ) || !lookupCacheEnabled)
return 0;
return 1;

14
fs/cifs/file.c
View file

@ -2478,7 +2478,7 @@ cifs_write_from_iter(loff_t offset, size_t len, struct iov_iter *from,
size_t cur_len;
unsigned long nr_pages, num_pages, i;
struct cifs_writedata *wdata;
struct iov_iter saved_from;
struct iov_iter saved_from = *from;
loff_t saved_offset = offset;
pid_t pid;
struct TCP_Server_Info *server;
@ -2489,7 +2489,6 @@ cifs_write_from_iter(loff_t offset, size_t len, struct iov_iter *from,
pid = current->tgid;
server = tlink_tcon(open_file->tlink)->ses->server;
memcpy(&saved_from, from, sizeof(struct iov_iter));
do {
unsigned int wsize, credits;
@ -2551,8 +2550,7 @@ cifs_write_from_iter(loff_t offset, size_t len, struct iov_iter *from,
kref_put(&wdata->refcount,
cifs_uncached_writedata_release);
if (rc == -EAGAIN) {
memcpy(from, &saved_from,
sizeof(struct iov_iter));
*from = saved_from;
iov_iter_advance(from, offset - saved_offset);
continue;
}
@ -2576,7 +2574,7 @@ ssize_t cifs_user_writev(struct kiocb *iocb, struct iov_iter *from)
struct cifs_sb_info *cifs_sb;
struct cifs_writedata *wdata, *tmp;
struct list_head wdata_list;
struct iov_iter saved_from;
struct iov_iter saved_from = *from;
int rc;
/*
@ -2597,8 +2595,6 @@ ssize_t cifs_user_writev(struct kiocb *iocb, struct iov_iter *from)
if (!tcon->ses->server->ops->async_writev)
return -ENOSYS;
memcpy(&saved_from, from, sizeof(struct iov_iter));
rc = cifs_write_from_iter(iocb->ki_pos, iov_iter_count(from), from,
open_file, cifs_sb, &wdata_list);
@ -2631,13 +2627,11 @@ ssize_t cifs_user_writev(struct kiocb *iocb, struct iov_iter *from)
/* resend call if it's a retryable error */
if (rc == -EAGAIN) {
struct list_head tmp_list;
struct iov_iter tmp_from;
struct iov_iter tmp_from = saved_from;
INIT_LIST_HEAD(&tmp_list);
list_del_init(&wdata->list);
memcpy(&tmp_from, &saved_from,
sizeof(struct iov_iter));
iov_iter_advance(&tmp_from,
wdata->offset - iocb->ki_pos);

6
fs/cifs/inode.c
View file

@ -1951,7 +1951,7 @@ int cifs_revalidate_dentry_attr(struct dentry *dentry)
cifs_dbg(FYI, "Update attributes: %s inode 0x%p count %d dentry: 0x%p d_time %ld jiffies %ld\n",
full_path, inode, inode->i_count.counter,
dentry, dentry->d_time, jiffies);
dentry, cifs_get_time(dentry), jiffies);
if (cifs_sb_master_tcon(CIFS_SB(sb))->unix_ext)
rc = cifs_get_inode_info_unix(&inode, full_path, sb, xid);
@ -2154,7 +2154,7 @@ cifs_setattr_unix(struct dentry *direntry, struct iattr *attrs)
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_PERM)
attrs->ia_valid |= ATTR_FORCE;
rc = inode_change_ok(inode, attrs);
rc = setattr_prepare(direntry, attrs);
if (rc < 0)
goto out;
@ -2294,7 +2294,7 @@ cifs_setattr_nounix(struct dentry *direntry, struct iattr *attrs)
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_PERM)
attrs->ia_valid |= ATTR_FORCE;
rc = inode_change_ok(inode, attrs);
rc = setattr_prepare(direntry, attrs);
if (rc < 0) {
free_xid(xid);
return rc;

2
fs/cifs/link.c
View file

@ -399,7 +399,7 @@ cifs_create_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
io_parms.offset = 0;
io_parms.length = CIFS_MF_SYMLINK_FILE_SIZE;
rc = CIFSSMBWrite(xid, &io_parms, pbytes_written, pbuf, NULL, 0);
rc = CIFSSMBWrite(xid, &io_parms, pbytes_written, pbuf);
CIFSSMBClose(xid, tcon, fid.netfid);
return rc;
}

16
fs/compat.c
View file

@ -54,20 +54,6 @@
#include <asm/ioctls.h>
#include "internal.h"
int compat_log = 1;
int compat_printk(const char *fmt, ...)
{
va_list ap;
int ret;
if (!compat_log)
return 0;
va_start(ap, fmt);
ret = vprintk(fmt, ap);
va_end(ap);
return ret;
}
/*
* Not all architectures have sys_utime, so implement this in terms
* of sys_utimes.
@ -562,7 +548,7 @@ ssize_t compat_rw_copy_check_uvector(int type,
goto out;
ret = -EINVAL;
if (nr_segs > UIO_MAXIOV || nr_segs < 0)
if (nr_segs > UIO_MAXIOV)
goto out;
if (nr_segs > fast_segs) {
ret = -ENOMEM;

2
fs/ecryptfs/inode.c
View file

@ -927,7 +927,7 @@ static int ecryptfs_setattr(struct dentry *dentry, struct iattr *ia)
}
mutex_unlock(&crypt_stat->cs_mutex);
rc = inode_change_ok(inode, ia);
rc = setattr_prepare(dentry, ia);
if (rc)
goto out;
if (ia->ia_valid & ATTR_SIZE) {

2
fs/exofs/inode.c
View file

@ -1034,7 +1034,7 @@ int exofs_setattr(struct dentry *dentry, struct iattr *iattr)
if (unlikely(error))
return error;
error = inode_change_ok(inode, iattr);
error = setattr_prepare(dentry, iattr);
if (unlikely(error))
return error;

12
fs/ext2/acl.c
View file

@ -190,15 +190,11 @@ ext2_set_acl(struct inode *inode, struct posix_acl *acl, int type)
case ACL_TYPE_ACCESS:
name_index = EXT2_XATTR_INDEX_POSIX_ACL_ACCESS;
if (acl) {
error = posix_acl_equiv_mode(acl, &inode->i_mode);
if (error < 0)
error = posix_acl_update_mode(inode, &inode->i_mode, &acl);
if (error)
return error;
else {
inode->i_ctime = CURRENT_TIME_SEC;
mark_inode_dirty(inode);
if (error == 0)
acl = NULL;
}
inode->i_ctime = CURRENT_TIME_SEC;
mark_inode_dirty(inode);
}
break;

2
fs/ext2/inode.c
View file

@ -1652,7 +1652,7 @@ int ext2_setattr(struct dentry *dentry, struct iattr *iattr)
struct inode *inode = d_inode(dentry);
int error;
error = inode_change_ok(inode, iattr);
error = setattr_prepare(dentry, iattr);
if (error)
return error;

12
fs/ext4/acl.c
View file

@ -193,15 +193,11 @@ __ext4_set_acl(handle_t *handle, struct inode *inode, int type,
case ACL_TYPE_ACCESS:
name_index = EXT4_XATTR_INDEX_POSIX_ACL_ACCESS;
if (acl) {
error = posix_acl_equiv_mode(acl, &inode->i_mode);
if (error < 0)
error = posix_acl_update_mode(inode, &inode->i_mode, &acl);
if (error)
return error;
else {
inode->i_ctime = ext4_current_time(inode);
ext4_mark_inode_dirty(handle, inode);
if (error == 0)
acl = NULL;
}
inode->i_ctime = ext4_current_time(inode);
ext4_mark_inode_dirty(handle, inode);
}
break;

2
fs/ext4/inode.c
View file

@ -5078,7 +5078,7 @@ int ext4_setattr(struct dentry *dentry, struct iattr *attr)
int orphan = 0;
const unsigned int ia_valid = attr->ia_valid;
error = inode_change_ok(inode, attr);
error = setattr_prepare(dentry, attr);
if (error)
return error;

6
fs/f2fs/acl.c
View file

@ -212,12 +212,10 @@ static int __f2fs_set_acl(struct inode *inode, int type,
case ACL_TYPE_ACCESS:
name_index = F2FS_XATTR_INDEX_POSIX_ACL_ACCESS;
if (acl) {
error = posix_acl_equiv_mode(acl, &inode->i_mode);
if (error < 0)
error = posix_acl_update_mode(inode, &inode->i_mode, &acl);
if (error)
return error;
set_acl_inode(inode, inode->i_mode);
if (error == 0)
acl = NULL;
}
break;

2
fs/f2fs/file.c
View file

@ -680,7 +680,7 @@ int f2fs_setattr(struct dentry *dentry, struct iattr *attr)
struct inode *inode = d_inode(dentry);
int err;
err = inode_change_ok(inode, attr);
err = setattr_prepare(dentry, attr);
if (err)
return err;

7
fs/f2fs/node.c
View file

@ -1525,7 +1525,7 @@ int wait_on_node_pages_writeback(struct f2fs_sb_info *sbi, nid_t ino)
{
pgoff_t index = 0, end = ULONG_MAX;
struct pagevec pvec;
int ret2 = 0, ret = 0;
int ret2, ret = 0;
pagevec_init(&pvec, 0);
@ -1554,10 +1554,7 @@ int wait_on_node_pages_writeback(struct f2fs_sb_info *sbi, nid_t ino)
cond_resched();
}
if (unlikely(test_and_clear_bit(AS_ENOSPC, &NODE_MAPPING(sbi)->flags)))
ret2 = -ENOSPC;
if (unlikely(test_and_clear_bit(AS_EIO, &NODE_MAPPING(sbi)->flags)))
ret2 = -EIO;
ret2 = filemap_check_errors(NODE_MAPPING(sbi));
if (!ret)
ret = ret2;
return ret;

2
fs/fat/file.c
View file

@ -450,7 +450,7 @@ int fat_setattr(struct dentry *dentry, struct iattr *attr)
attr->ia_valid &= ~TIMES_SET_FLAGS;
}
error = inode_change_ok(inode, attr);
error = setattr_prepare(dentry, attr);
attr->ia_valid = ia_valid;
if (error) {
if (sbi->options.quiet)

19
fs/fat/namei_vfat.c
View file

@ -21,6 +21,17 @@
#include <linux/namei.h>
#include "fat.h"
static inline unsigned long vfat_d_version(struct dentry *dentry)
{
return (unsigned long) dentry->d_fsdata;
}
static inline void vfat_d_version_set(struct dentry *dentry,
unsigned long version)
{
dentry->d_fsdata = (void *) version;
}
/*
* If new entry was created in the parent, it could create the 8.3
* alias (the shortname of logname). So, the parent may have the
@ -33,7 +44,7 @@ static int vfat_revalidate_shortname(struct dentry *dentry)
{
int ret = 1;
spin_lock(&dentry->d_lock);
if (dentry->d_time != d_inode(dentry->d_parent)->i_version)
if (vfat_d_version(dentry) != d_inode(dentry->d_parent)->i_version)
ret = 0;
spin_unlock(&dentry->d_lock);
return ret;
@ -759,7 +770,7 @@ static struct dentry *vfat_lookup(struct inode *dir, struct dentry *dentry,
out:
mutex_unlock(&MSDOS_SB(sb)->s_lock);
if (!inode)
dentry->d_time = dir->i_version;
vfat_d_version_set(dentry, dir->i_version);
return d_splice_alias(inode, dentry);
error:
mutex_unlock(&MSDOS_SB(sb)->s_lock);
@ -823,7 +834,7 @@ static int vfat_rmdir(struct inode *dir, struct dentry *dentry)
clear_nlink(inode);
inode->i_mtime = inode->i_atime = CURRENT_TIME_SEC;
fat_detach(inode);
dentry->d_time = dir->i_version;
vfat_d_version_set(dentry, dir->i_version);
out:
mutex_unlock(&MSDOS_SB(sb)->s_lock);
@ -849,7 +860,7 @@ static int vfat_unlink(struct inode *dir, struct dentry *dentry)
clear_nlink(inode);
inode->i_mtime = inode->i_atime = CURRENT_TIME_SEC;
fat_detach(inode);
dentry->d_time = dir->i_version;
vfat_d_version_set(dentry, dir->i_version);
out:
mutex_unlock(&MSDOS_SB(sb)->s_lock);

34
fs/file.c
View file

@ -23,12 +23,12 @@
#include <linux/rcupdate.h>
#include <linux/workqueue.h>
int sysctl_nr_open __read_mostly = 1024*1024;
int sysctl_nr_open_min = BITS_PER_LONG;
unsigned int sysctl_nr_open __read_mostly = 1024*1024;
unsigned int sysctl_nr_open_min = BITS_PER_LONG;
/* our min() is unusable in constant expressions ;-/ */
#define __const_min(x, y) ((x) < (y) ? (x) : (y))
int sysctl_nr_open_max = __const_min(INT_MAX, ~(size_t)0/sizeof(void *)) &
-BITS_PER_LONG;
unsigned int sysctl_nr_open_max =
__const_min(INT_MAX, ~(size_t)0/sizeof(void *)) & -BITS_PER_LONG;
static void *alloc_fdmem(size_t size)
{
@ -163,7 +163,7 @@ static struct fdtable * alloc_fdtable(unsigned int nr)
* Return <0 error code on error; 1 on successful completion.
* The files->file_lock should be held on entry, and will be held on exit.
*/
static int expand_fdtable(struct files_struct *files, int nr)
static int expand_fdtable(struct files_struct *files, unsigned int nr)
__releases(files->file_lock)
__acquires(files->file_lock)
{
@ -208,7 +208,7 @@ static int expand_fdtable(struct files_struct *files, int nr)
* expanded and execution may have blocked.
* The files->file_lock should be held on entry, and will be held on exit.
*/
static int expand_files(struct files_struct *files, int nr)
static int expand_files(struct files_struct *files, unsigned int nr)
__releases(files->file_lock)
__acquires(files->file_lock)
{
@ -243,12 +243,12 @@ static int expand_files(struct files_struct *files, int nr)
return expanded;
}
static inline void __set_close_on_exec(int fd, struct fdtable *fdt)
static inline void __set_close_on_exec(unsigned int fd, struct fdtable *fdt)
{
__set_bit(fd, fdt->close_on_exec);
}
static inline void __clear_close_on_exec(int fd, struct fdtable *fdt)
static inline void __clear_close_on_exec(unsigned int fd, struct fdtable *fdt)
{
if (test_bit(fd, fdt->close_on_exec))
__clear_bit(fd, fdt->close_on_exec);
@ -268,10 +268,10 @@ static inline void __clear_open_fd(unsigned int fd, struct fdtable *fdt)
__clear_bit(fd / BITS_PER_LONG, fdt->full_fds_bits);
}
static int count_open_files(struct fdtable *fdt)
static unsigned int count_open_files(struct fdtable *fdt)
{
int size = fdt->max_fds;
int i;
unsigned int size = fdt->max_fds;
unsigned int i;
/* Find the last open fd */
for (i = size / BITS_PER_LONG; i > 0; ) {
@ -291,7 +291,7 @@ struct files_struct *dup_fd(struct files_struct *oldf, int *errorp)
{
struct files_struct *newf;
struct file **old_fds, **new_fds;
int open_files, i;
unsigned int open_files, i;
struct fdtable *old_fdt, *new_fdt;
*errorp = -ENOMEM;
@ -391,7 +391,7 @@ static struct fdtable *close_files(struct files_struct * files)
* files structure.
*/
struct fdtable *fdt = rcu_dereference_raw(files->fdt);
int i, j = 0;
unsigned int i, j = 0;
for (;;) {
unsigned long set;
@ -477,11 +477,11 @@ struct files_struct init_files = {
.file_lock = __SPIN_LOCK_UNLOCKED(init_files.file_lock),
};
static unsigned long find_next_fd(struct fdtable *fdt, unsigned long start)
static unsigned int find_next_fd(struct fdtable *fdt, unsigned int start)
{
unsigned long maxfd = fdt->max_fds;
unsigned long maxbit = maxfd / BITS_PER_LONG;
unsigned long bitbit = start / BITS_PER_LONG;
unsigned int maxfd = fdt->max_fds;
unsigned int maxbit = maxfd / BITS_PER_LONG;
unsigned int bitbit = start / BITS_PER_LONG;
bitbit = find_next_zero_bit(fdt->full_fds_bits, maxbit, bitbit) * BITS_PER_LONG;
if (bitbit > maxfd)

7
fs/fuse/dir.c
View file

@ -1604,9 +1604,10 @@ int fuse_flush_times(struct inode *inode, struct fuse_file *ff)
* vmtruncate() doesn't allow for this case, so do the rlimit checking
* and the actual truncation by hand.
*/
int fuse_do_setattr(struct inode *inode, struct iattr *attr,
int fuse_do_setattr(struct dentry *dentry, struct iattr *attr,
struct file *file)
{
struct inode *inode = d_inode(dentry);
struct fuse_conn *fc = get_fuse_conn(inode);
struct fuse_inode *fi = get_fuse_inode(inode);
FUSE_ARGS(args);
@ -1621,7 +1622,7 @@ int fuse_do_setattr(struct inode *inode, struct iattr *attr,
if (!fc->default_permissions)
attr->ia_valid |= ATTR_FORCE;
err = inode_change_ok(inode, attr);
err = setattr_prepare(dentry, attr);
if (err)
return err;
@ -1758,7 +1759,7 @@ static int fuse_setattr(struct dentry *entry, struct iattr *attr)
if (!attr->ia_valid)
return 0;
ret = fuse_do_setattr(inode, attr, file);
ret = fuse_do_setattr(entry, attr, file);
if (!ret) {
/*
* If filesystem supports acls it may have updated acl xattrs in

2
fs/fuse/file.c
View file

@ -2810,7 +2810,7 @@ static void fuse_do_truncate(struct file *file)
attr.ia_file = file;
attr.ia_valid |= ATTR_FILE;
fuse_do_setattr(inode, &attr, file);
fuse_do_setattr(file_dentry(file), &attr, file);
}
static inline loff_t fuse_round_up(loff_t off)

2
fs/fuse/fuse_i.h
View file

@ -961,7 +961,7 @@ bool fuse_write_update_size(struct inode *inode, loff_t pos);
int fuse_flush_times(struct inode *inode, struct fuse_file *ff);
int fuse_write_inode(struct inode *inode, struct writeback_control *wbc);
int fuse_do_setattr(struct inode *inode, struct iattr *attr,
int fuse_do_setattr(struct dentry *dentry, struct iattr *attr,
struct file *file);
void fuse_set_initialized(struct fuse_conn *fc);

12
fs/gfs2/acl.c
View file

@ -92,17 +92,11 @@ int __gfs2_set_acl(struct inode *inode, struct posix_acl *acl, int type)
if (type == ACL_TYPE_ACCESS) {
umode_t mode = inode->i_mode;
error = posix_acl_equiv_mode(acl, &mode);
if (error < 0)
error = posix_acl_update_mode(inode, &inode->i_mode, &acl);
if (error)
return error;
if (error == 0)
acl = NULL;
if (mode != inode->i_mode) {
inode->i_mode = mode;
if (mode != inode->i_mode)
mark_inode_dirty(inode);
}
}
if (acl) {

2
fs/gfs2/inode.c
View file

@ -1936,7 +1936,7 @@ static int gfs2_setattr(struct dentry *dentry, struct iattr *attr)
if (IS_IMMUTABLE(inode) || IS_APPEND(inode))
goto out;
error = inode_change_ok(inode, attr);
error = setattr_prepare(dentry, attr);
if (error)
goto out;

2
fs/hfs/inode.c
View file

@ -605,7 +605,7 @@ int hfs_inode_setattr(struct dentry *dentry, struct iattr * attr)
struct hfs_sb_info *hsb = HFS_SB(inode->i_sb);
int error;
error = inode_change_ok(inode, attr); /* basic permission checks */
error = setattr_prepare(dentry, attr); /* basic permission checks */
if (error)
return error;

2
fs/hfsplus/inode.c
View file

@ -245,7 +245,7 @@ static int hfsplus_setattr(struct dentry *dentry, struct iattr *attr)
struct inode *inode = d_inode(dentry);
int error;
error = inode_change_ok(inode, attr);
error = setattr_prepare(dentry, attr);
if (error)
return error;

4
fs/hfsplus/posix_acl.c
View file

@ -65,8 +65,8 @@ int hfsplus_set_posix_acl(struct inode *inode, struct posix_acl *acl,
case ACL_TYPE_ACCESS:
xattr_name = XATTR_NAME_POSIX_ACL_ACCESS;
if (acl) {
err = posix_acl_equiv_mode(acl, &inode->i_mode);
if (err < 0)
err = posix_acl_update_mode(inode, &inode->i_mode, &acl);
if (err)
return err;
}
err = 0;

2
fs/hostfs/hostfs_kern.c
View file

@ -812,7 +812,7 @@ static int hostfs_setattr(struct dentry *dentry, struct iattr *attr)
int fd = HOSTFS_I(inode)->fd;
err = inode_change_ok(inode, attr);
err = setattr_prepare(dentry, attr);
if (err)
return err;

6
fs/hpfs/file.c
View file

@ -189,6 +189,11 @@ static sector_t _hpfs_bmap(struct address_space *mapping, sector_t block)
return generic_block_bmap(mapping, block, hpfs_get_block);
}
static int hpfs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, u64 start, u64 len)
{
return generic_block_fiemap(inode, fieinfo, start, len, hpfs_get_block);
}
const struct address_space_operations hpfs_aops = {
.readpage = hpfs_readpage,
.writepage = hpfs_writepage,
@ -214,4 +219,5 @@ const struct file_operations hpfs_file_ops =
const struct inode_operations hpfs_file_iops =
{
.setattr = hpfs_setattr,
.fiemap = hpfs_fiemap,
};

2
fs/hpfs/inode.c
View file

@ -273,7 +273,7 @@ int hpfs_setattr(struct dentry *dentry, struct iattr *attr)
if ((attr->ia_valid & ATTR_SIZE) && attr->ia_size > inode->i_size)
goto out_unlock;
error = inode_change_ok(inode, attr);
error = setattr_prepare(dentry, attr);
if (error)
goto out_unlock;

2
fs/hugetlbfs/inode.c
View file

@ -670,7 +670,7 @@ static int hugetlbfs_setattr(struct dentry *dentry, struct iattr *attr)
BUG_ON(!inode);
error = inode_change_ok(inode, attr);
error = setattr_prepare(dentry, attr);
if (error)
return error;

74
fs/inode.c
View file

@ -1021,13 +1021,17 @@ struct inode *iget5_locked(struct super_block *sb, unsigned long hashval,
{
struct hlist_head *head = inode_hashtable + hash(sb, hashval);
struct inode *inode;
again:
spin_lock(&inode_hash_lock);
inode = find_inode(sb, head, test, data);
spin_unlock(&inode_hash_lock);
if (inode) {
wait_on_inode(inode);
if (unlikely(inode_unhashed(inode))) {
iput(inode);
goto again;
}
return inode;
}
@ -1064,6 +1068,10 @@ struct inode *iget5_locked(struct super_block *sb, unsigned long hashval,
destroy_inode(inode);
inode = old;
wait_on_inode(inode);
if (unlikely(inode_unhashed(inode))) {
iput(inode);
goto again;
}
}
return inode;
@ -1091,12 +1099,16 @@ struct inode *iget_locked(struct super_block *sb, unsigned long ino)
{
struct hlist_head *head = inode_hashtable + hash(sb, ino);
struct inode *inode;
again:
spin_lock(&inode_hash_lock);
inode = find_inode_fast(sb, head, ino);
spin_unlock(&inode_hash_lock);
if (inode) {
wait_on_inode(inode);
if (unlikely(inode_unhashed(inode))) {
iput(inode);
goto again;
}
return inode;
}
@ -1131,6 +1143,10 @@ struct inode *iget_locked(struct super_block *sb, unsigned long ino)
destroy_inode(inode);
inode = old;
wait_on_inode(inode);
if (unlikely(inode_unhashed(inode))) {
iput(inode);
goto again;
}
}
return inode;
}
@ -1266,10 +1282,16 @@ EXPORT_SYMBOL(ilookup5_nowait);
struct inode *ilookup5(struct super_block *sb, unsigned long hashval,
int (*test)(struct inode *, void *), void *data)
{
struct inode *inode = ilookup5_nowait(sb, hashval, test, data);
if (inode)
struct inode *inode;
again:
inode = ilookup5_nowait(sb, hashval, test, data);
if (inode) {
wait_on_inode(inode);
if (unlikely(inode_unhashed(inode))) {
iput(inode);
goto again;
}
}
return inode;
}
EXPORT_SYMBOL(ilookup5);
@ -1286,13 +1308,18 @@ struct inode *ilookup(struct super_block *sb, unsigned long ino)
{
struct hlist_head *head = inode_hashtable + hash(sb, ino);
struct inode *inode;
again:
spin_lock(&inode_hash_lock);
inode = find_inode_fast(sb, head, ino);
spin_unlock(&inode_hash_lock);
if (inode)
if (inode) {
wait_on_inode(inode);
if (unlikely(inode_unhashed(inode))) {
iput(inode);
goto again;
}
}
return inode;
}
EXPORT_SYMBOL(ilookup);
@ -1535,17 +1562,37 @@ sector_t bmap(struct inode *inode, sector_t block)
}
EXPORT_SYMBOL(bmap);
/*
* Update times in overlayed inode from underlying real inode
*/
static void update_ovl_inode_times(struct dentry *dentry, struct inode *inode,
bool rcu)
{
if (!rcu) {
struct inode *realinode = d_real_inode(dentry);
if (unlikely(inode != realinode) &&
(!timespec_equal(&inode->i_mtime, &realinode->i_mtime) ||
!timespec_equal(&inode->i_ctime, &realinode->i_ctime))) {
inode->i_mtime = realinode->i_mtime;
inode->i_ctime = realinode->i_ctime;
}
}
}
/*
* With relative atime, only update atime if the previous atime is
* earlier than either the ctime or mtime or if at least a day has
* passed since the last atime update.
*/
static int relatime_need_update(struct vfsmount *mnt, struct inode *inode,
struct timespec now)
static int relatime_need_update(const struct path *path, struct inode *inode,
struct timespec now, bool rcu)
{
if (!(mnt->mnt_flags & MNT_RELATIME))
if (!(path->mnt->mnt_flags & MNT_RELATIME))
return 1;
update_ovl_inode_times(path->dentry, inode, rcu);
/*
* Is mtime younger than atime? If yes, update atime:
*/
@ -1612,7 +1659,8 @@ static int update_time(struct inode *inode, struct timespec *time, int flags)
* This function automatically handles read only file systems and media,
* as well as the "noatime" flag and inode specific "noatime" markers.
*/
bool atime_needs_update(const struct path *path, struct inode *inode)
bool __atime_needs_update(const struct path *path, struct inode *inode,
bool rcu)
{
struct vfsmount *mnt = path->mnt;
struct timespec now;
@ -1638,7 +1686,7 @@ bool atime_needs_update(const struct path *path, struct inode *inode)
now = current_fs_time(inode->i_sb);
if (!relatime_need_update(mnt, inode, now))
if (!relatime_need_update(path, inode, now, rcu))
return false;
if (timespec_equal(&inode->i_atime, &now))
@ -1653,7 +1701,7 @@ void touch_atime(const struct path *path)
struct inode *inode = d_inode(path->dentry);
struct timespec now;
if (!atime_needs_update(path, inode))
if (!__atime_needs_update(path, inode, false))
return;
if (!sb_start_write_trylock(inode->i_sb))

11
fs/internal.h
View file

@ -121,6 +121,15 @@ extern long prune_icache_sb(struct super_block *sb, struct shrink_control *sc);
extern void inode_add_lru(struct inode *inode);
extern int dentry_needs_remove_privs(struct dentry *dentry);
extern bool __atime_needs_update(const struct path *, struct inode *, bool);
static inline bool atime_needs_update_rcu(const struct path *path,
struct inode *inode)
{
return __atime_needs_update(path, inode, true);
}
extern bool atime_needs_update_rcu(const struct path *, struct inode *);
/*
* fs-writeback.c
*/
@ -157,7 +166,7 @@ extern void mnt_pin_kill(struct mount *m);
/*
* fs/nsfs.c
*/
extern struct dentry_operations ns_dentry_operations;
extern const struct dentry_operations ns_dentry_operations;
/*
* fs/ioctl.c

9
fs/jffs2/acl.c
View file

@ -233,9 +233,10 @@ int jffs2_set_acl(struct inode *inode, struct posix_acl *acl, int type)
case ACL_TYPE_ACCESS:
xprefix = JFFS2_XPREFIX_ACL_ACCESS;
if (acl) {
umode_t mode = inode->i_mode;
rc = posix_acl_equiv_mode(acl, &mode);
if (rc < 0)
umode_t mode;
rc = posix_acl_update_mode(inode, &mode, &acl);
if (rc)
return rc;
if (inode->i_mode != mode) {
struct iattr attr;
@ -247,8 +248,6 @@ int jffs2_set_acl(struct inode *inode, struct posix_acl *acl, int type)
if (rc < 0)
return rc;
}
if (rc == 0)
acl = NULL;
}
break;
case ACL_TYPE_DEFAULT:

2
fs/jffs2/fs.c
View file

@ -193,7 +193,7 @@ int jffs2_setattr(struct dentry *dentry, struct iattr *iattr)
struct inode *inode = d_inode(dentry);
int rc;
rc = inode_change_ok(inode, iattr);
rc = setattr_prepare(dentry, iattr);
if (rc)
return rc;

6
fs/jfs/acl.c
View file

@ -78,13 +78,11 @@ static int __jfs_set_acl(tid_t tid, struct inode *inode, int type,
case ACL_TYPE_ACCESS:
ea_name = XATTR_NAME_POSIX_ACL_ACCESS;
if (acl) {
rc = posix_acl_equiv_mode(acl, &inode->i_mode);
if (rc < 0)
rc = posix_acl_update_mode(inode, &inode->i_mode, &acl);
if (rc)
return rc;
inode->i_ctime = CURRENT_TIME;
mark_inode_dirty(inode);
if (rc == 0)
acl = NULL;
}
break;
case ACL_TYPE_DEFAULT:

2
fs/jfs/file.c
View file

@ -103,7 +103,7 @@ int jfs_setattr(struct dentry *dentry, struct iattr *iattr)
struct inode *inode = d_inode(dentry);
int rc;
rc = inode_change_ok(inode, iattr);
rc = setattr_prepare(dentry, iattr);
if (rc)
return rc;

2
fs/kernfs/inode.c
View file

@ -122,7 +122,7 @@ int kernfs_iop_setattr(struct dentry *dentry, struct iattr *iattr)
return -EINVAL;
mutex_lock(&kernfs_mutex);
error = inode_change_ok(inode, iattr);
error = setattr_prepare(dentry, iattr);
if (error)
goto out;

2
fs/libfs.c
View file

@ -394,7 +394,7 @@ int simple_setattr(struct dentry *dentry, struct iattr *iattr)
struct inode *inode = d_inode(dentry);
int error;
error = inode_change_ok(inode, iattr);
error = setattr_prepare(dentry, iattr);
if (error)
return error;

53
fs/locks.c
View file

@ -138,6 +138,11 @@
#define IS_LEASE(fl) (fl->fl_flags & (FL_LEASE|FL_DELEG|FL_LAYOUT))
#define IS_OFDLCK(fl) (fl->fl_flags & FL_OFDLCK)
static inline bool is_remote_lock(struct file *filp)
{
return likely(!(filp->f_path.dentry->d_sb->s_flags & MS_NOREMOTELOCK));
}
static bool lease_breaking(struct file_lock *fl)
{
return fl->fl_flags & (FL_UNLOCK_PENDING | FL_DOWNGRADE_PENDING);
@ -806,7 +811,7 @@ posix_test_lock(struct file *filp, struct file_lock *fl)
{
struct file_lock *cfl;
struct file_lock_context *ctx;
struct inode *inode = file_inode(filp);
struct inode *inode = locks_inode(filp);
ctx = smp_load_acquire(&inode->i_flctx);
if (!ctx || list_empty_careful(&ctx->flc_posix)) {
@ -1211,7 +1216,7 @@ static int posix_lock_inode(struct inode *inode, struct file_lock *request,
int posix_lock_file(struct file *filp, struct file_lock *fl,
struct file_lock *conflock)
{
return posix_lock_inode(file_inode(filp), fl, conflock);
return posix_lock_inode(locks_inode(filp), fl, conflock);
}
EXPORT_SYMBOL(posix_lock_file);
@ -1251,7 +1256,7 @@ static int posix_lock_inode_wait(struct inode *inode, struct file_lock *fl)
int locks_mandatory_locked(struct file *file)
{
int ret;
struct inode *inode = file_inode(file);
struct inode *inode = locks_inode(file);
struct file_lock_context *ctx;
struct file_lock *fl;
@ -1597,7 +1602,7 @@ EXPORT_SYMBOL(lease_get_mtime);
int fcntl_getlease(struct file *filp)
{
struct file_lock *fl;
struct inode *inode = file_inode(filp);
struct inode *inode = locks_inode(filp);
struct file_lock_context *ctx;
int type = F_UNLCK;
LIST_HEAD(dispose);
@ -1605,7 +1610,7 @@ int fcntl_getlease(struct file *filp)
ctx = smp_load_acquire(&inode->i_flctx);
if (ctx && !list_empty_careful(&ctx->flc_lease)) {
spin_lock(&ctx->flc_lock);
time_out_leases(file_inode(filp), &dispose);
time_out_leases(inode, &dispose);
list_for_each_entry(fl, &ctx->flc_lease, fl_list) {
if (fl->fl_file != filp)
continue;
@ -1638,7 +1643,8 @@ check_conflicting_open(const struct dentry *dentry, const long arg, int flags)
if (flags & FL_LAYOUT)
return 0;
if ((arg == F_RDLCK) && (atomic_read(&inode->i_writecount) > 0))
if ((arg == F_RDLCK) &&
(atomic_read(&d_real_inode(dentry)->i_writecount) > 0))
return -EAGAIN;
if ((arg == F_WRLCK) && ((d_count(dentry) > 1) ||
@ -1653,7 +1659,7 @@ generic_add_lease(struct file *filp, long arg, struct file_lock **flp, void **pr
{
struct file_lock *fl, *my_fl = NULL, *lease;
struct dentry *dentry = filp->f_path.dentry;
struct inode *inode = file_inode(filp);
struct inode *inode = dentry->d_inode;
struct file_lock_context *ctx;
bool is_deleg = (*flp)->fl_flags & FL_DELEG;
int error;
@ -1769,7 +1775,7 @@ static int generic_delete_lease(struct file *filp, void *owner)
{
int error = -EAGAIN;
struct file_lock *fl, *victim = NULL;
struct inode *inode = file_inode(filp);
struct inode *inode = locks_inode(filp);
struct file_lock_context *ctx;
LIST_HEAD(dispose);
@ -1811,7 +1817,7 @@ static int generic_delete_lease(struct file *filp, void *owner)
int generic_setlease(struct file *filp, long arg, struct file_lock **flp,
void **priv)
{
struct inode *inode = file_inode(filp);
struct inode *inode = locks_inode(filp);
int error;
if ((!uid_eq(current_fsuid(), inode->i_uid)) && !capable(CAP_LEASE))
@ -1859,7 +1865,7 @@ EXPORT_SYMBOL(generic_setlease);
int
vfs_setlease(struct file *filp, long arg, struct file_lock **lease, void **priv)
{
if (filp->f_op->setlease)
if (filp->f_op->setlease && is_remote_lock(filp))
return filp->f_op->setlease(filp, arg, lease, priv);
else
return generic_setlease(filp, arg, lease, priv);
@ -2008,7 +2014,7 @@ SYSCALL_DEFINE2(flock, unsigned int, fd, unsigned int, cmd)
if (error)
goto out_free;
if (f.file->f_op->flock)
if (f.file->f_op->flock && is_remote_lock(f.file))
error = f.file->f_op->flock(f.file,
(can_sleep) ? F_SETLKW : F_SETLK,
lock);
@ -2034,7 +2040,7 @@ SYSCALL_DEFINE2(flock, unsigned int, fd, unsigned int, cmd)
*/
int vfs_test_lock(struct file *filp, struct file_lock *fl)
{
if (filp->f_op->lock)
if (filp->f_op->lock && is_remote_lock(filp))
return filp->f_op->lock(filp, F_GETLK, fl);
posix_test_lock(filp, fl);
return 0;
@ -2158,7 +2164,7 @@ int fcntl_getlk(struct file *filp, unsigned int cmd, struct flock __user *l)
*/
int vfs_lock_file(struct file *filp, unsigned int cmd, struct file_lock *fl, struct file_lock *conf)
{
if (filp->f_op->lock)
if (filp->f_op->lock && is_remote_lock(filp))
return filp->f_op->lock(filp, cmd, fl);
else
return posix_lock_file(filp, fl, conf);
@ -2220,7 +2226,7 @@ int fcntl_setlk(unsigned int fd, struct file *filp, unsigned int cmd,
if (file_lock == NULL)
return -ENOLCK;
inode = file_inode(filp);
inode = locks_inode(filp);
/*
* This might block, so we do it before checking the inode.
@ -2372,7 +2378,7 @@ int fcntl_setlk64(unsigned int fd, struct file *filp, unsigned int cmd,
if (copy_from_user(&flock, l, sizeof(flock)))
goto out;
inode = file_inode(filp);
inode = locks_inode(filp);
/* Don't allow mandatory locks on files that may be memory mapped
* and shared.
@ -2455,6 +2461,7 @@ int fcntl_setlk64(unsigned int fd, struct file *filp, unsigned int cmd,
void locks_remove_posix(struct file *filp, fl_owner_t owner)
{
int error;
struct inode *inode = locks_inode(filp);
struct file_lock lock;
struct file_lock_context *ctx;
@ -2463,7 +2470,7 @@ void locks_remove_posix(struct file *filp, fl_owner_t owner)
* posix_lock_file(). Another process could be setting a lock on this
* file at the same time, but we wouldn't remove that lock anyway.
*/
ctx = smp_load_acquire(&file_inode(filp)->i_flctx);
ctx = smp_load_acquire(&inode->i_flctx);
if (!ctx || list_empty(&ctx->flc_posix))
return;
@ -2481,7 +2488,7 @@ void locks_remove_posix(struct file *filp, fl_owner_t owner)
if (lock.fl_ops && lock.fl_ops->fl_release_private)
lock.fl_ops->fl_release_private(&lock);
trace_locks_remove_posix(file_inode(filp), &lock, error);
trace_locks_remove_posix(inode, &lock, error);
}
EXPORT_SYMBOL(locks_remove_posix);
@ -2498,12 +2505,12 @@ locks_remove_flock(struct file *filp, struct file_lock_context *flctx)
.fl_type = F_UNLCK,
.fl_end = OFFSET_MAX,
};
struct inode *inode = file_inode(filp);
struct inode *inode = locks_inode(filp);
if (list_empty(&flctx->flc_flock))
return;
if (filp->f_op->flock)
if (filp->f_op->flock && is_remote_lock(filp))
filp->f_op->flock(filp, F_SETLKW, &fl);
else
flock_lock_inode(inode, &fl);
@ -2537,7 +2544,7 @@ void locks_remove_file(struct file *filp)
{
struct file_lock_context *ctx;
ctx = smp_load_acquire(&file_inode(filp)->i_flctx);
ctx = smp_load_acquire(&locks_inode(filp)->i_flctx);
if (!ctx)
return;
@ -2581,7 +2588,7 @@ EXPORT_SYMBOL(posix_unblock_lock);
*/
int vfs_cancel_lock(struct file *filp, struct file_lock *fl)
{
if (filp->f_op->lock)
if (filp->f_op->lock && is_remote_lock(filp))
return filp->f_op->lock(filp, F_CANCELLK, fl);
return 0;
}
@ -2620,7 +2627,7 @@ static void lock_get_status(struct seq_file *f, struct file_lock *fl,
fl_pid = fl->fl_pid;
if (fl->fl_file != NULL)
inode = file_inode(fl->fl_file);
inode = locks_inode(fl->fl_file);
seq_printf(f, "%lld:%s ", id, pfx);
if (IS_POSIX(fl)) {
@ -2726,7 +2733,7 @@ static void __show_fd_locks(struct seq_file *f,
void show_fd_locks(struct seq_file *f,
struct file *filp, struct files_struct *files)
{
struct inode *inode = file_inode(filp);
struct inode *inode = locks_inode(filp);
struct file_lock_context *ctx;
int id = 0;

2
fs/logfs/file.c
View file

@ -244,7 +244,7 @@ static int logfs_setattr(struct dentry *dentry, struct iattr *attr)
struct inode *inode = d_inode(dentry);
int err = 0;
err = inode_change_ok(inode, attr);
err = setattr_prepare(dentry, attr);
if (err)
return err;

2
fs/minix/file.c
View file

@ -26,7 +26,7 @@ static int minix_setattr(struct dentry *dentry, struct iattr *attr)
struct inode *inode = d_inode(dentry);
int error;
error = inode_change_ok(inode, attr);
error = setattr_prepare(dentry, attr);
if (error)
return error;

2
fs/namei.c
View file

@ -1015,7 +1015,7 @@ const char *get_link(struct nameidata *nd)
if (!(nd->flags & LOOKUP_RCU)) {
touch_atime(&last->link);
cond_resched();
} else if (atime_needs_update(&last->link, inode)) {
} else if (atime_needs_update_rcu(&last->link, inode)) {
if (unlikely(unlazy_walk(nd, NULL, 0)))
return ERR_PTR(-ECHILD);
touch_atime(&last->link);

2
fs/namespace.c
View file

@ -2743,7 +2743,7 @@ long do_mount(const char *dev_name, const char __user *dir_name,
flags &= ~(MS_NOSUID | MS_NOEXEC | MS_NODEV | MS_ACTIVE | MS_BORN |
MS_NOATIME | MS_NODIRATIME | MS_RELATIME| MS_KERNMOUNT |
MS_STRICTATIME);
MS_STRICTATIME | MS_NOREMOTELOCK);
if (flags & MS_REMOUNT)
retval = do_remount(&path, flags & ~MS_REMOUNT, mnt_flags,

2
fs/ncpfs/inode.c
View file

@ -884,7 +884,7 @@ int ncp_notify_change(struct dentry *dentry, struct iattr *attr)
/* ageing the dentry to force validation */
ncp_age_dentry(server, dentry);
result = inode_change_ok(inode, attr);
result = setattr_prepare(dentry, attr);
if (result < 0)
goto out;

8
fs/nfsd/nfsproc.c
View file

@ -74,10 +74,10 @@ nfsd_proc_setattr(struct svc_rqst *rqstp, struct nfsd_sattrargs *argp,
* which only requires access, and "set-[ac]time-to-X" which
* requires ownership.
* So if it looks like it might be "set both to the same time which
* is close to now", and if inode_change_ok fails, then we
* is close to now", and if setattr_prepare fails, then we
* convert to "set to now" instead of "set to explicit time"
*
* We only call inode_change_ok as the last test as technically
* We only call setattr_prepare as the last test as technically
* it is not an interface that we should be using.
*/
#define BOTH_TIME_SET (ATTR_ATIME_SET | ATTR_MTIME_SET)
@ -92,17 +92,15 @@ nfsd_proc_setattr(struct svc_rqst *rqstp, struct nfsd_sattrargs *argp,
* request is. We require it be within 30 minutes of now.
*/
time_t delta = iap->ia_atime.tv_sec - get_seconds();
struct inode *inode;
nfserr = fh_verify(rqstp, fhp, 0, NFSD_MAY_NOP);
if (nfserr)
goto done;
inode = d_inode(fhp->fh_dentry);
if (delta < 0)
delta = -delta;
if (delta < MAX_TOUCH_TIME_ERROR &&
inode_change_ok(inode, iap) != 0) {
setattr_prepare(fhp->fh_dentry, iap) != 0) {
/*
* Turn off ATTR_[AM]TIME_SET but leave ATTR_[AM]TIME.
* This will cause notify_change to set these times

2
fs/nilfs2/inode.c
View file

@ -829,7 +829,7 @@ int nilfs_setattr(struct dentry *dentry, struct iattr *iattr)
struct super_block *sb = inode->i_sb;
int err;
err = inode_change_ok(inode, iattr);
err = setattr_prepare(dentry, iattr);
if (err)
return err;

2
fs/ntfs/file.c
View file

@ -1850,7 +1850,7 @@ static ssize_t ntfs_perform_write(struct file *file, struct iov_iter *i,
* pages being swapped out between us bringing them into memory
* and doing the actual copying.
*/
if (unlikely(iov_iter_fault_in_multipages_readable(i, bytes))) {
if (unlikely(iov_iter_fault_in_readable(i, bytes))) {
status = -EFAULT;
break;
}

2
fs/ntfs/inode.c
View file

@ -2893,7 +2893,7 @@ int ntfs_setattr(struct dentry *dentry, struct iattr *attr)
int err;
unsigned int ia_valid = attr->ia_valid;
err = inode_change_ok(vi, attr);
err = setattr_prepare(dentry, attr);
if (err)
goto out;
/* We do not support NTFS ACLs yet. */

10
fs/ocfs2/acl.c
View file

@ -241,13 +241,11 @@ int ocfs2_set_acl(handle_t *handle,
case ACL_TYPE_ACCESS:
name_index = OCFS2_XATTR_INDEX_POSIX_ACL_ACCESS;
if (acl) {
umode_t mode = inode->i_mode;
ret = posix_acl_equiv_mode(acl, &mode);
if (ret < 0)
return ret;
umode_t mode;
if (ret == 0)
acl = NULL;
ret = posix_acl_update_mode(inode, &mode, &acl);
if (ret)
return ret;
ret = ocfs2_acl_set_mode(inode, di_bh,
handle, mode);

2
fs/ocfs2/dlmfs/dlmfs.c
View file

@ -211,7 +211,7 @@ static int dlmfs_file_setattr(struct dentry *dentry, struct iattr *attr)
struct inode *inode = d_inode(dentry);
attr->ia_valid &= ~ATTR_SIZE;
error = inode_change_ok(inode, attr);
error = setattr_prepare(dentry, attr);
if (error)
return error;

2
fs/ocfs2/file.c
View file

@ -1155,7 +1155,7 @@ int ocfs2_setattr(struct dentry *dentry, struct iattr *attr)
if (!(attr->ia_valid & OCFS2_VALID_ATTRS))
return 0;
status = inode_change_ok(inode, attr);
status = setattr_prepare(dentry, attr);
if (status)
return status;

2
fs/omfs/file.c
View file

@ -349,7 +349,7 @@ static int omfs_setattr(struct dentry *dentry, struct iattr *attr)
struct inode *inode = d_inode(dentry);
int error;
error = inode_change_ok(inode, attr);
error = setattr_prepare(dentry, attr);
if (error)
return error;

17
fs/open.c
View file

@ -68,6 +68,7 @@ int do_truncate(struct dentry *dentry, loff_t length, unsigned int time_attrs,
long vfs_truncate(const struct path *path, loff_t length)
{
struct inode *inode;
struct dentry *upperdentry;
long error;
inode = path->dentry->d_inode;
@ -90,7 +91,17 @@ long vfs_truncate(const struct path *path, loff_t length)
if (IS_APPEND(inode))
goto mnt_drop_write_and_out;
error = get_write_access(inode);
/*
* If this is an overlayfs then do as if opening the file so we get
* write access on the upper inode, not on the overlay inode. For
* non-overlay filesystems d_real() is an identity function.
*/
upperdentry = d_real(path->dentry, NULL, O_WRONLY);
error = PTR_ERR(upperdentry);
if (IS_ERR(upperdentry))
goto mnt_drop_write_and_out;
error = get_write_access(upperdentry->d_inode);
if (error)
goto mnt_drop_write_and_out;
@ -109,7 +120,7 @@ long vfs_truncate(const struct path *path, loff_t length)
error = do_truncate(path->dentry, length, 0, NULL);
put_write_and_out:
put_write_access(inode);
put_write_access(upperdentry->d_inode);
mnt_drop_write_and_out:
mnt_drop_write(path->mnt);
out:
@ -726,7 +737,7 @@ static int do_dentry_open(struct file *f,
if (error)
goto cleanup_all;
error = break_lease(inode, f->f_flags);
error = break_lease(locks_inode(f), f->f_flags);
if (error)
goto cleanup_all;

15
fs/orangefs/acl.c
View file

@ -73,14 +73,11 @@ int orangefs_set_acl(struct inode *inode, struct posix_acl *acl, int type)
case ACL_TYPE_ACCESS:
name = XATTR_NAME_POSIX_ACL_ACCESS;
if (acl) {
umode_t mode = inode->i_mode;
/*
* can we represent this with the traditional file
* mode permission bits?
*/
error = posix_acl_equiv_mode(acl, &mode);
if (error < 0) {
gossip_err("%s: posix_acl_equiv_mode err: %d\n",
umode_t mode;
error = posix_acl_update_mode(inode, &mode, &acl);
if (error) {
gossip_err("%s: posix_acl_update_mode err: %d\n",
__func__,
error);
return error;
@ -90,8 +87,6 @@ int orangefs_set_acl(struct inode *inode, struct posix_acl *acl, int type)
SetModeFlag(orangefs_inode);
inode->i_mode = mode;
mark_inode_dirty_sync(inode);
if (error == 0)
acl = NULL;
}
break;
case ACL_TYPE_DEFAULT:

4
fs/orangefs/dir.c
View file

@ -177,8 +177,8 @@ static int orangefs_readdir(struct file *file, struct dir_context *ctx)
}
gossip_debug(GOSSIP_DIR_DEBUG,
"orangefs_readdir called on %s (pos=%llu)\n",
dentry->d_name.name, llu(pos));
"orangefs_readdir called on %pd (pos=%llu)\n",
dentry, llu(pos));
memset(&readdir_response, 0, sizeof(readdir_response));

4
fs/orangefs/file.c
View file

@ -611,8 +611,8 @@ static int orangefs_file_mmap(struct file *file, struct vm_area_struct *vma)
static int orangefs_file_release(struct inode *inode, struct file *file)
{
gossip_debug(GOSSIP_FILE_DEBUG,
"orangefs_file_release: called on %s\n",
file->f_path.dentry->d_name.name);
"orangefs_file_release: called on %pD\n",
file);
orangefs_flush_inode(inode);

14
fs/orangefs/inode.c
View file

@ -129,8 +129,8 @@ static ssize_t orangefs_direct_IO(struct kiocb *iocb,
struct iov_iter *iter)
{
gossip_debug(GOSSIP_INODE_DEBUG,
"orangefs_direct_IO: %s\n",
iocb->ki_filp->f_path.dentry->d_name.name);
"orangefs_direct_IO: %pD\n",
iocb->ki_filp);
return -EINVAL;
}
@ -216,10 +216,10 @@ int orangefs_setattr(struct dentry *dentry, struct iattr *iattr)
struct inode *inode = dentry->d_inode;
gossip_debug(GOSSIP_INODE_DEBUG,
"orangefs_setattr: called on %s\n",
dentry->d_name.name);
"orangefs_setattr: called on %pd\n",
dentry);
ret = inode_change_ok(inode, iattr);
ret = setattr_prepare(dentry, iattr);
if (ret)
goto out;
@ -259,8 +259,8 @@ int orangefs_getattr(struct vfsmount *mnt,
struct orangefs_inode_s *orangefs_inode = NULL;
gossip_debug(GOSSIP_INODE_DEBUG,
"orangefs_getattr: called on %s\n",
dentry->d_name.name);
"orangefs_getattr: called on %pd\n",
dentry);
ret = orangefs_inode_getattr(inode, 0, 0);
if (ret == 0) {

44
fs/orangefs/namei.c
View file

@ -24,9 +24,9 @@ static int orangefs_create(struct inode *dir,
struct inode *inode;
int ret;
gossip_debug(GOSSIP_NAME_DEBUG, "%s: %s\n",
gossip_debug(GOSSIP_NAME_DEBUG, "%s: %pd\n",
__func__,
dentry->d_name.name);
dentry);
new_op = op_alloc(ORANGEFS_VFS_OP_CREATE);
if (!new_op)
@ -43,9 +43,9 @@ static int orangefs_create(struct inode *dir,
ret = service_operation(new_op, __func__, get_interruptible_flag(dir));
gossip_debug(GOSSIP_NAME_DEBUG,
"%s: %s: handle:%pU: fsid:%d: new_op:%p: ret:%d:\n",
"%s: %pd: handle:%pU: fsid:%d: new_op:%p: ret:%d:\n",
__func__,
dentry->d_name.name,
dentry,
&new_op->downcall.resp.create.refn.khandle,
new_op->downcall.resp.create.refn.fs_id,
new_op,
@ -57,18 +57,18 @@ static int orangefs_create(struct inode *dir,
inode = orangefs_new_inode(dir->i_sb, dir, S_IFREG | mode, 0,
&new_op->downcall.resp.create.refn);
if (IS_ERR(inode)) {
gossip_err("%s: Failed to allocate inode for file :%s:\n",
gossip_err("%s: Failed to allocate inode for file :%pd:\n",
__func__,
dentry->d_name.name);
dentry);
ret = PTR_ERR(inode);
goto out;
}
gossip_debug(GOSSIP_NAME_DEBUG,
"%s: Assigned inode :%pU: for file :%s:\n",
"%s: Assigned inode :%pU: for file :%pd:\n",
__func__,
get_khandle_from_ino(inode),
dentry->d_name.name);
dentry);
d_instantiate(dentry, inode);
unlock_new_inode(inode);
@ -76,9 +76,9 @@ static int orangefs_create(struct inode *dir,
ORANGEFS_I(inode)->getattr_time = jiffies - 1;
gossip_debug(GOSSIP_NAME_DEBUG,
"%s: dentry instantiated for %s\n",
"%s: dentry instantiated for %pd\n",
__func__,
dentry->d_name.name);
dentry);
SetMtimeFlag(parent);
dir->i_mtime = dir->i_ctime = current_fs_time(dir->i_sb);
@ -87,9 +87,9 @@ static int orangefs_create(struct inode *dir,
out:
op_release(new_op);
gossip_debug(GOSSIP_NAME_DEBUG,
"%s: %s: returning %d\n",
"%s: %pd: returning %d\n",
__func__,
dentry->d_name.name,
dentry,
ret);
return ret;
}
@ -115,8 +115,8 @@ static struct dentry *orangefs_lookup(struct inode *dir, struct dentry *dentry,
* -EEXIST on O_EXCL opens, which is broken if we skip this lookup
* in the create path)
*/
gossip_debug(GOSSIP_NAME_DEBUG, "%s called on %s\n",
__func__, dentry->d_name.name);
gossip_debug(GOSSIP_NAME_DEBUG, "%s called on %pd\n",
__func__, dentry);
if (dentry->d_name.len > (ORANGEFS_NAME_MAX - 1))
return ERR_PTR(-ENAMETOOLONG);
@ -169,9 +169,9 @@ static struct dentry *orangefs_lookup(struct inode *dir, struct dentry *dentry,
gossip_debug(GOSSIP_NAME_DEBUG,
"orangefs_lookup: Adding *negative* dentry "
"%p for %s\n",
"%p for %pd\n",
dentry,
dentry->d_name.name);
dentry);
d_add(dentry, NULL);
res = NULL;
@ -224,10 +224,10 @@ static int orangefs_unlink(struct inode *dir, struct dentry *dentry)
int ret;
gossip_debug(GOSSIP_NAME_DEBUG,
"%s: called on %s\n"
"%s: called on %pd\n"
" (inode %pU): Parent is %pU | fs_id %d\n",
__func__,
dentry->d_name.name,
dentry,
get_khandle_from_ino(inode),
&parent->refn.khandle,
parent->refn.fs_id);
@ -326,9 +326,9 @@ static int orangefs_symlink(struct inode *dir,
ORANGEFS_I(inode)->getattr_time = jiffies - 1;
gossip_debug(GOSSIP_NAME_DEBUG,
"Inode (Symlink) %pU -> %s\n",
"Inode (Symlink) %pU -> %pd\n",
get_khandle_from_ino(inode),
dentry->d_name.name);
dentry);
SetMtimeFlag(parent);
dir->i_mtime = dir->i_ctime = current_fs_time(dir->i_sb);
@ -390,9 +390,9 @@ static int orangefs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode
ORANGEFS_I(inode)->getattr_time = jiffies - 1;
gossip_debug(GOSSIP_NAME_DEBUG,
"Inode (Directory) %pU -> %s\n",
"Inode (Directory) %pU -> %pd\n",
get_khandle_from_ino(inode),
dentry->d_name.name);
dentry);
/*
* NOTE: we have no good way to keep nlink consistent for directories

4
fs/orangefs/orangefs-debugfs.c
View file

@ -428,8 +428,8 @@ static ssize_t orangefs_debug_write(struct file *file,
struct client_debug_mask c_mask = { NULL, 0, 0 };
gossip_debug(GOSSIP_DEBUGFS_DEBUG,
"orangefs_debug_write: %s\n",
file->f_path.dentry->d_name.name);
"orangefs_debug_write: %pD\n",
file);
/*
* Thwart users who try to jamb a ridiculous number

2
fs/overlayfs/inode.c
View file

@ -53,7 +53,7 @@ int ovl_setattr(struct dentry *dentry, struct iattr *attr)
* inode_newsize_ok() will always check against MAX_LFS_FILESIZE and not
* check for a swapfile (which this won't be anyway).
*/
err = inode_change_ok(dentry->d_inode, attr);
err = setattr_prepare(dentry, attr);
if (err)
return err;

2
fs/overlayfs/super.c
View file

@ -1320,7 +1320,7 @@ static int ovl_fill_super(struct super_block *sb, void *data, int silent)
sb->s_xattr = ovl_xattr_handlers;
sb->s_root = root_dentry;
sb->s_fs_info = ufs;
sb->s_flags |= MS_POSIXACL;
sb->s_flags |= MS_POSIXACL | MS_NOREMOTELOCK;
return 0;

60
fs/posix_acl.c
View file

@ -598,13 +598,14 @@ posix_acl_create(struct inode *dir, umode_t *mode,
if (IS_ERR(p))
return PTR_ERR(p);
ret = -ENOMEM;
clone = posix_acl_clone(p, GFP_NOFS);
if (!clone)
goto no_mem;
goto err_release;
ret = posix_acl_create_masq(clone, mode);
if (ret < 0)
goto no_mem_clone;
goto err_release_clone;
if (ret == 0)
posix_acl_release(clone);
@ -618,14 +619,45 @@ posix_acl_create(struct inode *dir, umode_t *mode,
return 0;
no_mem_clone:
err_release_clone:
posix_acl_release(clone);
no_mem:
err_release:
posix_acl_release(p);
return -ENOMEM;
return ret;
}
EXPORT_SYMBOL_GPL(posix_acl_create);
/**
* posix_acl_update_mode - update mode in set_acl
*
* Update the file mode when setting an ACL: compute the new file permission
* bits based on the ACL. In addition, if the ACL is equivalent to the new
* file mode, set *acl to NULL to indicate that no ACL should be set.
*
* As with chmod, clear the setgit bit if the caller is not in the owning group
* or capable of CAP_FSETID (see inode_change_ok).
*
* Called from set_acl inode operations.
*/
int posix_acl_update_mode(struct inode *inode, umode_t *mode_p,
struct posix_acl **acl)
{
umode_t mode = inode->i_mode;
int error;
error = posix_acl_equiv_mode(*acl, &mode);
if (error < 0)
return error;
if (error == 0)
*acl = NULL;
if (!in_group_p(inode->i_gid) &&
!capable_wrt_inode_uidgid(inode, CAP_FSETID))
mode &= ~S_ISGID;
*mode_p = mode;
return 0;
}
EXPORT_SYMBOL(posix_acl_update_mode);
/*
* Fix up the uids and gids in posix acl extended attributes in place.
*/
@ -633,15 +665,15 @@ static void posix_acl_fix_xattr_userns(
struct user_namespace *to, struct user_namespace *from,
void *value, size_t size)
{
posix_acl_xattr_header *header = (posix_acl_xattr_header *)value;
posix_acl_xattr_entry *entry = (posix_acl_xattr_entry *)(header+1), *end;
struct posix_acl_xattr_header *header = value;
struct posix_acl_xattr_entry *entry = (void *)(header + 1), *end;
int count;
kuid_t uid;
kgid_t gid;
if (!value)
return;
if (size < sizeof(posix_acl_xattr_header))
if (size < sizeof(struct posix_acl_xattr_header))
return;
if (header->a_version != cpu_to_le32(POSIX_ACL_XATTR_VERSION))
return;
@ -691,15 +723,15 @@ struct posix_acl *
posix_acl_from_xattr(struct user_namespace *user_ns,
const void *value, size_t size)
{
posix_acl_xattr_header *header = (posix_acl_xattr_header *)value;
posix_acl_xattr_entry *entry = (posix_acl_xattr_entry *)(header+1), *end;
const struct posix_acl_xattr_header *header = value;
const struct posix_acl_xattr_entry *entry = (const void *)(header + 1), *end;
int count;
struct posix_acl *acl;
struct posix_acl_entry *acl_e;
if (!value)
return NULL;
if (size < sizeof(posix_acl_xattr_header))
if (size < sizeof(struct posix_acl_xattr_header))
return ERR_PTR(-EINVAL);
if (header->a_version != cpu_to_le32(POSIX_ACL_XATTR_VERSION))
return ERR_PTR(-EOPNOTSUPP);
@ -760,8 +792,8 @@ int
posix_acl_to_xattr(struct user_namespace *user_ns, const struct posix_acl *acl,
void *buffer, size_t size)
{
posix_acl_xattr_header *ext_acl = (posix_acl_xattr_header *)buffer;
posix_acl_xattr_entry *ext_entry;
struct posix_acl_xattr_header *ext_acl = buffer;
struct posix_acl_xattr_entry *ext_entry;
int real_size, n;
real_size = posix_acl_xattr_size(acl->a_count);
@ -770,7 +802,7 @@ posix_acl_to_xattr(struct user_namespace *user_ns, const struct posix_acl *acl,
if (real_size > size)
return -ERANGE;
ext_entry = ext_acl->a_entries;
ext_entry = (void *)(ext_acl + 1);
ext_acl->a_version = cpu_to_le32(POSIX_ACL_XATTR_VERSION);
for (n=0; n < acl->a_count; n++, ext_entry++) {

47
fs/proc/base.c
View file

@ -400,23 +400,6 @@ static const struct file_operations proc_pid_cmdline_ops = {
.llseek = generic_file_llseek,
};
static int proc_pid_auxv(struct seq_file *m, struct pid_namespace *ns,
struct pid *pid, struct task_struct *task)
{
struct mm_struct *mm = mm_access(task, PTRACE_MODE_READ_FSCREDS);
if (mm && !IS_ERR(mm)) {
unsigned int nwords = 0;
do {
nwords += 2;
} while (mm->saved_auxv[nwords - 2] != 0); /* AT_NULL */
seq_write(m, mm->saved_auxv, nwords * sizeof(mm->saved_auxv[0]));
mmput(mm);
return 0;
} else
return PTR_ERR(mm);
}
#ifdef CONFIG_KALLSYMS
/*
* Provides a wchan file via kallsyms in a proper one-value-per-file format.
@ -709,7 +692,7 @@ int proc_setattr(struct dentry *dentry, struct iattr *attr)
if (attr->ia_valid & ATTR_MODE)
return -EPERM;
error = inode_change_ok(inode, attr);
error = setattr_prepare(dentry, attr);
if (error)
return error;
@ -1014,6 +997,30 @@ static const struct file_operations proc_environ_operations = {
.release = mem_release,
};
static int auxv_open(struct inode *inode, struct file *file)
{
return __mem_open(inode, file, PTRACE_MODE_READ_FSCREDS);
}
static ssize_t auxv_read(struct file *file, char __user *buf,
size_t count, loff_t *ppos)
{
struct mm_struct *mm = file->private_data;
unsigned int nwords = 0;
do {
nwords += 2;
} while (mm->saved_auxv[nwords - 2] != 0); /* AT_NULL */
return simple_read_from_buffer(buf, count, ppos, mm->saved_auxv,
nwords * sizeof(mm->saved_auxv[0]));
}
static const struct file_operations proc_auxv_operations = {
.open = auxv_open,
.read = auxv_read,
.llseek = generic_file_llseek,
.release = mem_release,
};
static ssize_t oom_adj_read(struct file *file, char __user *buf, size_t count,
loff_t *ppos)
{
@ -2842,7 +2849,7 @@ static const struct pid_entry tgid_base_stuff[] = {
DIR("net", S_IRUGO|S_IXUGO, proc_net_inode_operations, proc_net_operations),
#endif
REG("environ", S_IRUSR, proc_environ_operations),
ONE("auxv", S_IRUSR, proc_pid_auxv),
REG("auxv", S_IRUSR, proc_auxv_operations),
ONE("status", S_IRUGO, proc_pid_status),
ONE("personality", S_IRUSR, proc_pid_personality),
ONE("limits", S_IRUGO, proc_pid_limits),
@ -3230,7 +3237,7 @@ static const struct pid_entry tid_base_stuff[] = {
DIR("net", S_IRUGO|S_IXUGO, proc_net_inode_operations, proc_net_operations),
#endif
REG("environ", S_IRUSR, proc_environ_operations),
ONE("auxv", S_IRUSR, proc_pid_auxv),
REG("auxv", S_IRUSR, proc_auxv_operations),
ONE("status", S_IRUGO, proc_pid_status),
ONE("personality", S_IRUSR, proc_pid_personality),
ONE("limits", S_IRUGO, proc_pid_limits),

8
fs/proc/fd.c
View file

@ -31,7 +31,7 @@ static int seq_show(struct seq_file *m, void *v)
put_task_struct(task);
if (files) {
int fd = proc_fd(m->private);
unsigned int fd = proc_fd(m->private);
spin_lock(&files->file_lock);
file = fcheck_files(files, fd);
@ -86,7 +86,7 @@ static int tid_fd_revalidate(struct dentry *dentry, unsigned int flags)
struct task_struct *task;
const struct cred *cred;
struct inode *inode;
int fd;
unsigned int fd;
if (flags & LOOKUP_RCU)
return -ECHILD;
@ -158,7 +158,7 @@ static int proc_fd_link(struct dentry *dentry, struct path *path)
}
if (files) {
int fd = proc_fd(d_inode(dentry));
unsigned int fd = proc_fd(d_inode(dentry));
struct file *fd_file;
spin_lock(&files->file_lock);
@ -253,7 +253,7 @@ static int proc_readfd_common(struct file *file, struct dir_context *ctx,
continue;
rcu_read_unlock();
len = snprintf(name, sizeof(name), "%d", fd);
len = snprintf(name, sizeof(name), "%u", fd);
if (!proc_fill_cache(file, ctx,
name, len, instantiate, p,
(void *)(unsigned long)fd))

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