324a56e16e
kernfs has just been separated out from sysfs and we're already in full conflict mode. Nothing can make the situation any worse. Let's take the chance to name things properly. This patch performs the following renames. * s/sysfs_elem_dir/kernfs_elem_dir/ * s/sysfs_elem_symlink/kernfs_elem_symlink/ * s/sysfs_elem_attr/kernfs_elem_file/ * s/sysfs_dirent/kernfs_node/ * s/sd/kn/ in kernfs proper * s/parent_sd/parent/ * s/target_sd/target/ * s/dir_sd/parent/ * s/to_sysfs_dirent()/rb_to_kn()/ * misc renames of local vars when they conflict with the above Because md, mic and gpio dig into sysfs details, this patch ends up modifying them. All are sysfs_dirent renames and trivial. While we can avoid these by introducing a dummy wrapping struct sysfs_dirent around kernfs_node, given the limited usage outside kernfs and sysfs proper, I don't think such workaround is called for. This patch is strictly rename only and doesn't introduce any functional difference. - mic / gpio renames were missing. Spotted by kbuild test robot. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Neil Brown <neilb@suse.de> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Ashutosh Dixit <ashutosh.dixit@intel.com> Cc: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
122 lines
3.3 KiB
C
122 lines
3.3 KiB
C
/*
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* fs/kernfs/kernfs-internal.h - kernfs internal header file
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*
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* Copyright (c) 2001-3 Patrick Mochel
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* Copyright (c) 2007 SUSE Linux Products GmbH
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* Copyright (c) 2007, 2013 Tejun Heo <teheo@suse.de>
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*
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* This file is released under the GPLv2.
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*/
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#ifndef __KERNFS_INTERNAL_H
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#define __KERNFS_INTERNAL_H
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#include <linux/lockdep.h>
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#include <linux/fs.h>
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#include <linux/mutex.h>
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#include <linux/xattr.h>
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#include <linux/kernfs.h>
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struct sysfs_inode_attrs {
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struct iattr ia_iattr;
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void *ia_secdata;
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u32 ia_secdata_len;
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struct simple_xattrs xattrs;
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};
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#define SD_DEACTIVATED_BIAS INT_MIN
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/* SYSFS_TYPE_MASK and types are defined in include/linux/kernfs.h */
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/**
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* kernfs_root - find out the kernfs_root a kernfs_node belongs to
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* @kn: kernfs_node of interest
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*
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* Return the kernfs_root @kn belongs to.
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*/
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static inline struct kernfs_root *kernfs_root(struct kernfs_node *kn)
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{
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/* if parent exists, it's always a dir; otherwise, @sd is a dir */
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if (kn->s_parent)
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kn = kn->s_parent;
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return kn->s_dir.root;
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}
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/*
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* Context structure to be used while adding/removing nodes.
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*/
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struct sysfs_addrm_cxt {
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struct kernfs_node *removed;
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};
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/*
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* mount.c
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*/
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struct sysfs_super_info {
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/*
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* The root associated with this super_block. Each super_block is
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* identified by the root and ns it's associated with.
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*/
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struct kernfs_root *root;
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/*
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* Each sb is associated with one namespace tag, currently the
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* network namespace of the task which mounted this sysfs instance.
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* If multiple tags become necessary, make the following an array
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* and compare kernfs_node tag against every entry.
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*/
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const void *ns;
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};
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#define sysfs_info(SB) ((struct sysfs_super_info *)(SB->s_fs_info))
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extern struct kmem_cache *sysfs_dir_cachep;
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/*
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* inode.c
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*/
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struct inode *sysfs_get_inode(struct super_block *sb, struct kernfs_node *kn);
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void sysfs_evict_inode(struct inode *inode);
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int sysfs_permission(struct inode *inode, int mask);
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int sysfs_setattr(struct dentry *dentry, struct iattr *iattr);
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int sysfs_getattr(struct vfsmount *mnt, struct dentry *dentry,
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struct kstat *stat);
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int sysfs_setxattr(struct dentry *dentry, const char *name, const void *value,
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size_t size, int flags);
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int sysfs_removexattr(struct dentry *dentry, const char *name);
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ssize_t sysfs_getxattr(struct dentry *dentry, const char *name, void *buf,
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size_t size);
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ssize_t sysfs_listxattr(struct dentry *dentry, char *buf, size_t size);
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void sysfs_inode_init(void);
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/*
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* dir.c
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*/
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extern struct mutex sysfs_mutex;
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extern const struct dentry_operations sysfs_dentry_ops;
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extern const struct file_operations sysfs_dir_operations;
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extern const struct inode_operations sysfs_dir_inode_operations;
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struct kernfs_node *sysfs_get_active(struct kernfs_node *kn);
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void sysfs_put_active(struct kernfs_node *kn);
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void sysfs_addrm_start(struct sysfs_addrm_cxt *acxt);
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int sysfs_add_one(struct sysfs_addrm_cxt *acxt, struct kernfs_node *kn,
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struct kernfs_node *parent);
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void sysfs_addrm_finish(struct sysfs_addrm_cxt *acxt);
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struct kernfs_node *sysfs_new_dirent(struct kernfs_root *root,
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const char *name, umode_t mode, int type);
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/*
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* file.c
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*/
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extern const struct file_operations kernfs_file_operations;
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void sysfs_unmap_bin_file(struct kernfs_node *kn);
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/*
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* symlink.c
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*/
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extern const struct inode_operations sysfs_symlink_inode_operations;
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#endif /* __KERNFS_INTERNAL_H */
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