fs/xfs/xfs_sysfs.h

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Copyright (c) 2014 Red Hat, Inc.
   4  * All Rights Reserved.
   5  */
   6
   7 #ifndef __XFS_SYSFS_H__
   8 #define __XFS_SYSFS_H__
   9
  10 extern const struct kobj_type xfs_mp_ktype;     /* xfs_mount */
  11 extern const struct kobj_type xfs_dbg_ktype;    /* debug */
  12 extern const struct kobj_type xfs_log_ktype;    /* xlog */
  13 extern const struct kobj_type xfs_stats_ktype;  /* stats */
  14
  15 static inline struct xfs_kobj *
  16 to_kobj(struct kobject *kobject)
  17 {
  18         return container_of(kobject, struct xfs_kobj, kobject);
  19 }
  20
  21 static inline void
  22 xfs_sysfs_release(struct kobject *kobject)
  23 {
  24         struct xfs_kobj *kobj = to_kobj(kobject);
  25         complete(&kobj->complete);
  26 }
  27
  28 static inline int
  29 xfs_sysfs_init(
  30         struct xfs_kobj         *kobj,
  31         const struct kobj_type  *ktype,
  32         struct xfs_kobj         *parent_kobj,
  33         const char              *name)
  34 {
  35         struct kobject          *parent;
  36         int err;
  37
  38         parent = parent_kobj ? &parent_kobj->kobject : NULL;
  39         init_completion(&kobj->complete);
  40         err = kobject_init_and_add(&kobj->kobject, ktype, parent, "%s", name);
  41         if (err)
  42                 kobject_put(&kobj->kobject);
  43
  44         return err;
  45 }
  46
  47 static inline void
  48 xfs_sysfs_del(
  49         struct xfs_kobj *kobj)
  50 {
  51         kobject_del(&kobj->kobject);
  52         kobject_put(&kobj->kobject);
  53         wait_for_completion(&kobj->complete);
  54 }
  55
  56 int     xfs_error_sysfs_init(struct xfs_mount *mp);
  57 void    xfs_error_sysfs_del(struct xfs_mount *mp);
  58
  59 #endif  /* __XFS_SYSFS_H__ */