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Regard whitespace Rev 6101 → Rev 6102

/drivers/include/linux/sysfs.h
0,0 → 1,261
/*
* sysfs.h - definitions for the device driver filesystem
*
* Copyright (c) 2001,2002 Patrick Mochel
* Copyright (c) 2004 Silicon Graphics, Inc.
* Copyright (c) 2007 SUSE Linux Products GmbH
* Copyright (c) 2007 Tejun Heo <teheo@suse.de>
*
* Please see Documentation/filesystems/sysfs.txt for more information.
*/
 
#ifndef _SYSFS_H_
#define _SYSFS_H_
#include <linux/compiler.h>
#include <linux/errno.h>
#include <linux/list.h>
#include <linux/atomic.h>
 
struct kobject;
struct module;
struct bin_attribute;
enum kobj_ns_type;
 
struct attribute {
const char *name;
umode_t mode;
#ifdef CONFIG_DEBUG_LOCK_ALLOC
bool ignore_lockdep:1;
struct lock_class_key *key;
struct lock_class_key skey;
#endif
};
#ifdef CONFIG_SYSFS
 
int __must_check sysfs_create_dir_ns(struct kobject *kobj, const void *ns);
void sysfs_remove_dir(struct kobject *kobj);
int __must_check sysfs_rename_dir_ns(struct kobject *kobj, const char *new_name,
const void *new_ns);
int __must_check sysfs_move_dir_ns(struct kobject *kobj,
struct kobject *new_parent_kobj,
const void *new_ns);
int __must_check sysfs_create_mount_point(struct kobject *parent_kobj,
const char *name);
void sysfs_remove_mount_point(struct kobject *parent_kobj,
const char *name);
 
int __must_check sysfs_create_file_ns(struct kobject *kobj,
const struct attribute *attr,
const void *ns);
int __must_check sysfs_create_files(struct kobject *kobj,
const struct attribute **attr);
int __must_check sysfs_chmod_file(struct kobject *kobj,
const struct attribute *attr, umode_t mode);
void sysfs_remove_file_ns(struct kobject *kobj, const struct attribute *attr,
const void *ns);
bool sysfs_remove_file_self(struct kobject *kobj, const struct attribute *attr);
void sysfs_remove_files(struct kobject *kobj, const struct attribute **attr);
 
int __must_check sysfs_create_bin_file(struct kobject *kobj,
const struct bin_attribute *attr);
void sysfs_remove_bin_file(struct kobject *kobj,
const struct bin_attribute *attr);
 
int __must_check sysfs_create_link(struct kobject *kobj, struct kobject *target,
const char *name);
int __must_check sysfs_create_link_nowarn(struct kobject *kobj,
struct kobject *target,
const char *name);
void sysfs_remove_link(struct kobject *kobj, const char *name);
 
int sysfs_rename_link_ns(struct kobject *kobj, struct kobject *target,
const char *old_name, const char *new_name,
const void *new_ns);
 
void sysfs_delete_link(struct kobject *dir, struct kobject *targ,
const char *name);
 
int __must_check sysfs_create_group(struct kobject *kobj,
const struct attribute_group *grp);
int __must_check sysfs_create_groups(struct kobject *kobj,
const struct attribute_group **groups);
int sysfs_update_group(struct kobject *kobj,
const struct attribute_group *grp);
void sysfs_remove_group(struct kobject *kobj,
const struct attribute_group *grp);
void sysfs_remove_groups(struct kobject *kobj,
const struct attribute_group **groups);
int sysfs_add_file_to_group(struct kobject *kobj,
const struct attribute *attr, const char *group);
void sysfs_remove_file_from_group(struct kobject *kobj,
const struct attribute *attr, const char *group);
int sysfs_merge_group(struct kobject *kobj,
const struct attribute_group *grp);
void sysfs_unmerge_group(struct kobject *kobj,
const struct attribute_group *grp);
int sysfs_add_link_to_group(struct kobject *kobj, const char *group_name,
struct kobject *target, const char *link_name);
void sysfs_remove_link_from_group(struct kobject *kobj, const char *group_name,
const char *link_name);
int __compat_only_sysfs_link_entry_to_kobj(struct kobject *kobj,
struct kobject *target_kobj,
const char *target_name);
 
void sysfs_notify(struct kobject *kobj, const char *dir, const char *attr);
 
int __must_check sysfs_init(void);
 
static inline void sysfs_enable_ns(struct kernfs_node *kn)
{
return kernfs_enable_ns(kn);
}
 
#else /* CONFIG_SYSFS */
 
static inline int sysfs_create_dir_ns(struct kobject *kobj, const void *ns)
{
return 0;
}
 
static inline void sysfs_remove_dir(struct kobject *kobj)
{
}
 
static inline int sysfs_rename_dir_ns(struct kobject *kobj,
const char *new_name, const void *new_ns)
{
return 0;
}
 
static inline int sysfs_move_dir_ns(struct kobject *kobj,
struct kobject *new_parent_kobj,
const void *new_ns)
{
return 0;
}
 
static inline int sysfs_create_mount_point(struct kobject *parent_kobj,
const char *name)
{
return 0;
}
 
static inline void sysfs_remove_mount_point(struct kobject *parent_kobj,
const char *name)
{
}
 
static inline int sysfs_create_file_ns(struct kobject *kobj,
const struct attribute *attr,
const void *ns)
{
return 0;
}
 
static inline int sysfs_create_files(struct kobject *kobj,
const struct attribute **attr)
{
return 0;
}
 
static inline int sysfs_chmod_file(struct kobject *kobj,
const struct attribute *attr, umode_t mode)
{
return 0;
}
 
static inline void sysfs_remove_file_ns(struct kobject *kobj,
const struct attribute *attr,
const void *ns)
{
}
 
static inline bool sysfs_remove_file_self(struct kobject *kobj,
const struct attribute *attr)
{
return false;
}
 
static inline void sysfs_remove_files(struct kobject *kobj,
const struct attribute **attr)
{
}
 
static inline int sysfs_create_bin_file(struct kobject *kobj,
const struct bin_attribute *attr)
{
return 0;
}
 
static inline void sysfs_remove_bin_file(struct kobject *kobj,
const struct bin_attribute *attr)
{
}
 
#define sysfs_create_link(kobj,target, name) (0)
 
static inline int sysfs_create_link_nowarn(struct kobject *kobj,
struct kobject *target,
const char *name)
{
return 0;
}
 
#define sysfs_remove_link(kobj, name)
 
static inline int sysfs_rename_link_ns(struct kobject *k, struct kobject *t,
const char *old_name,
const char *new_name, const void *ns)
{
return 0;
}
 
static inline void sysfs_delete_link(struct kobject *k, struct kobject *t,
const char *name)
{
}
 
 
static inline int sysfs_add_file_to_group(struct kobject *kobj,
const struct attribute *attr, const char *group)
{
return 0;
}
 
static inline void sysfs_remove_file_from_group(struct kobject *kobj,
const struct attribute *attr, const char *group)
{
}
 
static inline int sysfs_add_link_to_group(struct kobject *kobj,
const char *group_name, struct kobject *target,
const char *link_name)
{
return 0;
}
 
static inline void sysfs_remove_link_from_group(struct kobject *kobj,
const char *group_name, const char *link_name)
{
}
 
static inline int __compat_only_sysfs_link_entry_to_kobj(
struct kobject *kobj,
struct kobject *target_kobj,
const char *target_name)
{
return 0;
}
 
static inline void sysfs_notify(struct kobject *kobj, const char *dir,
const char *attr)
{
}
 
static inline int __must_check sysfs_init(void)
{
return 0;
}
 
#endif /* CONFIG_SYSFS */
#endif /* _SYSFS_H_ */