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gerrit-public.fairphone.software / kernel / msm-4.9 / ae6621b0716852146e4655fef7f74a181faa6c81 / . / fs / sysfs / sysfs.h
blob: f8c936f31b37ddaeb30086e5deeccfd5e4bde70c [file] [log] [blame]
Tejun Heo6d66f5c2007-09-20 17:31:38 +0900[diff] [blame]1/*
2 * fs/sysfs/sysfs.h - sysfs internal header file
3 *
4 * Copyright (c) 2001-3 Patrick Mochel
5 * Copyright (c) 2007 SUSE Linux Products GmbH
6 * Copyright (c) 2007 Tejun Heo <teheo@suse.de>
7 *
8 * This file is released under the GPLv2.
9 */
10
Tejun Heoae6621b2013-11-28 14:54:31 -0500[diff] [blame^]11#ifndef __SYSFS_INTERNAL_H
12#define __SYSFS_INTERNAL_H
David P. Quigleyddd29ec2009-09-09 14:25:37 -0400[diff] [blame]13
Tejun Heoae6621b2013-11-28 14:54:31 -0500[diff] [blame^]14#include "../kernfs/kernfs-internal.h"
15#include <linux/sysfs.h>
Tejun Heofb6896d2007-06-14 04:27:24 +0900[diff] [blame]16
Tejun Heo59f69012007-09-20 16:05:10 +0900[diff] [blame]17/*
18 * mount.c
19 */
Serge E. Hallynbe867b12010-05-03 16:23:15 -0500[diff] [blame]20
21/*
Tejun Heoc84a3b22013-11-23 18:01:46 -0500[diff] [blame]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.
Serge E. Hallynbe867b12010-05-03 16:23:15 -0500[diff] [blame]26 */
Eric W. Biederman9e7fdd22010-03-30 11:31:24 -0700[diff] [blame]27struct sysfs_super_info {
Tejun Heoc84a3b22013-11-23 18:01:46 -0500[diff] [blame]28 void *ns;
Eric W. Biederman9e7fdd22010-03-30 11:31:24 -0700[diff] [blame]29};
30#define sysfs_info(SB) ((struct sysfs_super_info *)(SB->s_fs_info))
Tejun Heo51225032007-06-14 04:27:25 +0900[diff] [blame]31extern struct sysfs_dirent sysfs_root;
Christoph Lametere18b8902006-12-06 20:33:20 -0800[diff] [blame]32extern struct kmem_cache *sysfs_dir_cachep;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]33
Tejun Heo59f69012007-09-20 16:05:10 +0900[diff] [blame]34/*
35 * dir.c
36 */
Tejun Heo3007e992007-06-14 04:27:23 +0900[diff] [blame]37extern struct mutex sysfs_mutex;
Tejun Heo0cae60f2013-10-30 10:28:36 -0400[diff] [blame]38extern spinlock_t sysfs_symlink_target_lock;
Al Viro469796d2012-06-07 20:51:39 -0400[diff] [blame]39extern const struct dentry_operations sysfs_dentry_ops;
Tejun Heo59f69012007-09-20 16:05:10 +0900[diff] [blame]40
Arjan van de Ven4b6f5d22006-03-28 01:56:42 -0800[diff] [blame]41extern const struct file_operations sysfs_dir_operations;
Arjan van de Venc5ef1c42007-02-12 00:55:40 -0800[diff] [blame]42extern const struct inode_operations sysfs_dir_inode_operations;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]43
Eric W. Biedermane72ceb82010-02-11 15:18:38 -0800[diff] [blame]44struct sysfs_dirent *sysfs_get_active(struct sysfs_dirent *sd);
45void sysfs_put_active(struct sysfs_dirent *sd);
Tejun Heod69ac5a2013-09-18 17:15:35 -0400[diff] [blame]46void sysfs_addrm_start(struct sysfs_addrm_cxt *acxt);
Tejun Heod1c14592013-10-24 11:49:11 -0400[diff] [blame]47void sysfs_warn_dup(struct sysfs_dirent *parent, const char *name);
Tejun Heod69ac5a2013-09-18 17:15:35 -0400[diff] [blame]48int sysfs_add_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd,
49 struct sysfs_dirent *parent_sd);
Tejun Heo59f69012007-09-20 16:05:10 +0900[diff] [blame]50void sysfs_addrm_finish(struct sysfs_addrm_cxt *acxt);
Tejun Heob402d722007-06-14 04:27:21 +0900[diff] [blame]51
Tejun Heo59f69012007-09-20 16:05:10 +0900[diff] [blame]52struct sysfs_dirent *sysfs_new_dirent(const char *name, umode_t mode, int type);
53
Tejun Heo59f69012007-09-20 16:05:10 +0900[diff] [blame]54/*
55 * inode.c
56 */
Eric W. Biedermanfac26222010-02-12 19:22:27 -0800[diff] [blame]57struct inode *sysfs_get_inode(struct super_block *sb, struct sysfs_dirent *sd);
Al Viro01cd9fe2010-06-04 22:21:54 -0400[diff] [blame]58void sysfs_evict_inode(struct inode *inode);
Al Viro10556cb2011-06-20 19:28:19 -0400[diff] [blame]59int sysfs_permission(struct inode *inode, int mask);
Tejun Heo59f69012007-09-20 16:05:10 +0900[diff] [blame]60int sysfs_setattr(struct dentry *dentry, struct iattr *iattr);
Greg Kroah-Hartman2c3a9082013-08-21 16:40:05 -0700[diff] [blame]61int sysfs_getattr(struct vfsmount *mnt, struct dentry *dentry,
62 struct kstat *stat);
David P. Quigleyddd29ec2009-09-09 14:25:37 -0400[diff] [blame]63int sysfs_setxattr(struct dentry *dentry, const char *name, const void *value,
Greg Kroah-Hartman2c3a9082013-08-21 16:40:05 -0700[diff] [blame]64 size_t size, int flags);
Peter Zijlstrae0bf68d2007-10-16 23:25:46 -0700[diff] [blame]65int sysfs_inode_init(void);
Tejun Heo59f69012007-09-20 16:05:10 +0900[diff] [blame]66
67/*
68 * file.c
69 */
Tejun Heoc6fb4492013-11-28 14:54:19 -0500[diff] [blame]70extern const struct file_operations kernfs_file_operations;
Tejun Heo59f69012007-09-20 16:05:10 +0900[diff] [blame]71
72int sysfs_add_file(struct sysfs_dirent *dir_sd,
Tejun Heoa7dc66d2013-11-28 14:54:23 -0500[diff] [blame]73 const struct attribute *attr, bool is_bin);
Tejun Heo59f69012007-09-20 16:05:10 +0900[diff] [blame]74
Tejun Heo58292cbe2013-09-11 22:29:04 -0400[diff] [blame]75int sysfs_add_file_mode_ns(struct sysfs_dirent *dir_sd,
Tejun Heoa7dc66d2013-11-28 14:54:23 -0500[diff] [blame]76 const struct attribute *attr, bool is_bin,
Tejun Heo58292cbe2013-09-11 22:29:04 -0400[diff] [blame]77 umode_t amode, const void *ns);
Tejun Heo73d97142013-10-01 17:42:07 -0400[diff] [blame]78void sysfs_unmap_bin_file(struct sysfs_dirent *sd);
79
Tejun Heo59f69012007-09-20 16:05:10 +0900[diff] [blame]80/*
Tejun Heo59f69012007-09-20 16:05:10 +0900[diff] [blame]81 * symlink.c
82 */
83extern const struct inode_operations sysfs_symlink_inode_operations;
Rafael J. Wysocki0bb8f3d2013-01-25 21:51:13 +0100[diff] [blame]84int sysfs_create_link_sd(struct sysfs_dirent *sd, struct kobject *target,
85 const char *name);
Tejun Heoae6621b2013-11-28 14:54:31 -0500[diff] [blame^]86
87#endif /* __SYSFS_INTERNAL_H */