fs/xfs/xfs_sysfs.h

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