xref: /linux/fs/xfs/xfs_sysfs.h (revision e58e871becec2d3b04ed91c0c16fe8deac9c9dfa)
1 /*
2  * Copyright (c) 2014 Red Hat, Inc.
3  * All Rights Reserved.
4  *
5  * This program is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU General Public License as
7  * published by the Free Software Foundation.
8  *
9  * This program is distributed in the hope that it would be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12  * GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program; if not, write the Free Software Foundation,
16  * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
17  */
18 
19 #ifndef __XFS_SYSFS_H__
20 #define __XFS_SYSFS_H__
21 
22 extern struct kobj_type xfs_mp_ktype;	/* xfs_mount */
23 extern struct kobj_type xfs_dbg_ktype;	/* debug */
24 extern struct kobj_type xfs_log_ktype;	/* xlog */
25 extern struct kobj_type xfs_stats_ktype;	/* stats */
26 
27 static inline struct xfs_kobj *
28 to_kobj(struct kobject *kobject)
29 {
30 	return container_of(kobject, struct xfs_kobj, kobject);
31 }
32 
33 static inline void
34 xfs_sysfs_release(struct kobject *kobject)
35 {
36 	struct xfs_kobj *kobj = to_kobj(kobject);
37 	complete(&kobj->complete);
38 }
39 
40 static inline int
41 xfs_sysfs_init(
42 	struct xfs_kobj		*kobj,
43 	struct kobj_type	*ktype,
44 	struct xfs_kobj		*parent_kobj,
45 	const char		*name)
46 {
47 	init_completion(&kobj->complete);
48 	return kobject_init_and_add(&kobj->kobject, ktype,
49 				    &parent_kobj->kobject, "%s", name);
50 }
51 
52 static inline void
53 xfs_sysfs_del(
54 	struct xfs_kobj	*kobj)
55 {
56 	kobject_del(&kobj->kobject);
57 	kobject_put(&kobj->kobject);
58 	wait_for_completion(&kobj->complete);
59 }
60 
61 int	xfs_error_sysfs_init(struct xfs_mount *mp);
62 void	xfs_error_sysfs_del(struct xfs_mount *mp);
63 
64 #endif	/* __XFS_SYSFS_H__ */
65