xref: /linux/fs/xfs/xfs_sysfs.h (revision ca55b2fef3a9373fcfc30f82fd26bc7fccbda732)
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 
26 static inline struct xfs_kobj *
27 to_kobj(struct kobject *kobject)
28 {
29 	return container_of(kobject, struct xfs_kobj, kobject);
30 }
31 
32 static inline void
33 xfs_sysfs_release(struct kobject *kobject)
34 {
35 	struct xfs_kobj *kobj = to_kobj(kobject);
36 	complete(&kobj->complete);
37 }
38 
39 static inline int
40 xfs_sysfs_init(
41 	struct xfs_kobj		*kobj,
42 	struct kobj_type	*ktype,
43 	struct xfs_kobj		*parent_kobj,
44 	const char		*name)
45 {
46 	init_completion(&kobj->complete);
47 	return kobject_init_and_add(&kobj->kobject, ktype,
48 				    &parent_kobj->kobject, "%s", name);
49 }
50 
51 static inline void
52 xfs_sysfs_del(
53 	struct xfs_kobj	*kobj)
54 {
55 	kobject_del(&kobj->kobject);
56 	kobject_put(&kobj->kobject);
57 	wait_for_completion(&kobj->complete);
58 }
59 
60 #endif	/* __XFS_SYSFS_H__ */
61