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>
22 * Each sb is associated with one namespace tag, currently the network
23 * namespace of the task which mounted this sysfs instance. If multiple
24 * tags become necessary, make the following an array and compare
25 * sysfs_dirent tag against every entry.
27 struct sysfs_super_info
{
30 #define sysfs_info(SB) ((struct sysfs_super_info *)(SB->s_fs_info))
31 extern struct sysfs_dirent sysfs_root
;
32 extern struct kmem_cache
*sysfs_dir_cachep
;
37 extern struct mutex sysfs_mutex
;
38 extern spinlock_t sysfs_symlink_target_lock
;
39 extern const struct dentry_operations sysfs_dentry_ops
;
41 extern const struct file_operations sysfs_dir_operations
;
42 extern const struct inode_operations sysfs_dir_inode_operations
;
44 struct sysfs_dirent
*sysfs_get_active(struct sysfs_dirent
*sd
);
45 void sysfs_put_active(struct sysfs_dirent
*sd
);
46 void sysfs_addrm_start(struct sysfs_addrm_cxt
*acxt
);
47 void sysfs_warn_dup(struct sysfs_dirent
*parent
, const char *name
);
48 int sysfs_add_one(struct sysfs_addrm_cxt
*acxt
, struct sysfs_dirent
*sd
,
49 struct sysfs_dirent
*parent_sd
);
50 void sysfs_addrm_finish(struct sysfs_addrm_cxt
*acxt
);
52 struct sysfs_dirent
*sysfs_new_dirent(const char *name
, umode_t mode
, int type
);
57 extern const struct file_operations kernfs_file_operations
;
59 int sysfs_add_file(struct sysfs_dirent
*dir_sd
,
60 const struct attribute
*attr
, bool is_bin
);
62 int sysfs_add_file_mode_ns(struct sysfs_dirent
*dir_sd
,
63 const struct attribute
*attr
, bool is_bin
,
64 umode_t amode
, const void *ns
);
65 void sysfs_unmap_bin_file(struct sysfs_dirent
*sd
);
70 extern const struct inode_operations sysfs_symlink_inode_operations
;
71 int sysfs_create_link_sd(struct sysfs_dirent
*sd
, struct kobject
*target
,
74 #endif /* __SYSFS_INTERNAL_H */