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 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 #endif  /* __XFS_SYSFS_H__ */