linux/fs/xfs/xfs_sysfs.h
Brian Foster a31b1d3d89 xfs: add xfs_mount sysfs kobject
Embed a base kobject into xfs_mount. This creates a kobject associated
with each XFS mount and a subdirectory in sysfs with the name of the
filesystem. The subdirectory lifecycle matches that of the mount. Also
add the new xfs_sysfs.[c,h] source files with some XFS sysfs
infrastructure to facilitate attribute creation.

Note that there are currently no attributes exported as part of the
xfs_mount kobject. It exists solely to serve as a per-mount container
for child objects.

Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
2014-07-15 08:07:01 +10:00

59 lines
1.5 KiB
C

/*
* Copyright (c) 2014 Red Hat, Inc.
* All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it would be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef __XFS_SYSFS_H__
#define __XFS_SYSFS_H__
extern struct kobj_type xfs_mp_ktype; /* xfs_mount */
static inline struct xfs_kobj *
to_kobj(struct kobject *kobject)
{
return container_of(kobject, struct xfs_kobj, kobject);
}
static inline void
xfs_sysfs_release(struct kobject *kobject)
{
struct xfs_kobj *kobj = to_kobj(kobject);
complete(&kobj->complete);
}
static inline int
xfs_sysfs_init(
struct xfs_kobj *kobj,
struct kobj_type *ktype,
struct xfs_kobj *parent_kobj,
const char *name)
{
init_completion(&kobj->complete);
return kobject_init_and_add(&kobj->kobject, ktype,
&parent_kobj->kobject, "%s", name);
}
static inline void
xfs_sysfs_del(
struct xfs_kobj *kobj)
{
kobject_del(&kobj->kobject);
kobject_put(&kobj->kobject);
wait_for_completion(&kobj->complete);
}
#endif /* __XFS_SYSFS_H__ */