2 * fs/sysfs/sysfs.h - sysfs internal header file
4 * Copyright (c) 2001-3 Patrick Mochel
5 * Copyright (c) 2007 SUSE Linux Products GmbH
6 * Copyright (c) 2007 Tejun Heo <teheo@suse.de>
8 * This file is released under the GPLv2.
11 #ifndef __SYSFS_INTERNAL_H
12 #define __SYSFS_INTERNAL_H
14 #include "../kernfs/kernfs-internal.h"
15 #include <linux/sysfs.h>
21 struct sysfs_super_info {
23 * The root associated with this super_block. Each super_block is
24 * identified by the root and ns it's associated with.
26 struct kernfs_root *root;
29 * Each sb is associated with one namespace tag, currently the network
30 * namespace of the task which mounted this sysfs instance. If multiple
31 * tags become necessary, make the following an array and compare
32 * sysfs_dirent tag against every entry.
36 #define sysfs_info(SB) ((struct sysfs_super_info *)(SB->s_fs_info))
37 extern struct sysfs_dirent *sysfs_root_sd;
38 extern struct kmem_cache *sysfs_dir_cachep;
43 extern spinlock_t sysfs_symlink_target_lock;
45 void sysfs_warn_dup(struct sysfs_dirent *parent, const char *name);
50 int sysfs_add_file(struct sysfs_dirent *dir_sd,
51 const struct attribute *attr, bool is_bin);
52 int sysfs_add_file_mode_ns(struct sysfs_dirent *dir_sd,
53 const struct attribute *attr, bool is_bin,
54 umode_t amode, const void *ns);
59 int sysfs_create_link_sd(struct sysfs_dirent *sd, struct kobject *target,
62 #endif /* __SYSFS_INTERNAL_H */