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nilfs2: add /sys/fs/nilfs2/<device>/mounted_snapshots group

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This patch adds creation of /sys/fs/nilfs2/<device>/mounted_snapshots
group.

The mounted_snapshots group contains group for every
mounted snapshot.

Signed-off-by: Vyacheslav Dubeyko <Vyacheslav.Dubeyko@hgst.com>
Cc: Vyacheslav Dubeyko <slava@dubeyko.com>
Cc: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Cc: Michael L. Semon <mlsemon35@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Vyacheslav Dubeyko
2014-08-08 14:20:50 -07:00
committed by Linus Torvalds
parent 02a0ba1c60
commit a2ecb791a9
3 changed files with 54 additions and 1 deletions
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12
fs/nilfs2/sysfs.h
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@@ -30,6 +30,8 @@
* @sg_superblock_kobj_unregister: completion state
* @sg_segctor_kobj: /sys/fs/<nilfs>/<device>/segctor
* @sg_segctor_kobj_unregister: completion state
* @sg_mounted_snapshots_kobj: /sys/fs/<nilfs>/<device>/mounted_snapshots
* @sg_mounted_snapshots_kobj_unregister: completion state
* @sg_checkpoints_kobj: /sys/fs/<nilfs>/<device>/checkpoints
* @sg_checkpoints_kobj_unregister: completion state
* @sg_segments_kobj: /sys/fs/<nilfs>/<device>/segments
@@ -44,6 +46,10 @@ struct nilfs_sysfs_dev_subgroups {
struct kobject sg_segctor_kobj;
struct completion sg_segctor_kobj_unregister;
/* /sys/fs/<nilfs>/<device>/mounted_snapshots */
struct kobject sg_mounted_snapshots_kobj;
struct completion sg_mounted_snapshots_kobj_unregister;
/* /sys/fs/<nilfs>/<device>/checkpoints */
struct kobject sg_checkpoints_kobj;
struct completion sg_checkpoints_kobj_unregister;
@@ -75,6 +81,7 @@ struct nilfs_##name##_attr { \
NILFS_DEV_ATTR_STRUCT(dev);
NILFS_DEV_ATTR_STRUCT(segments);
NILFS_DEV_ATTR_STRUCT(mounted_snapshots);
NILFS_DEV_ATTR_STRUCT(checkpoints);
NILFS_DEV_ATTR_STRUCT(superblock);
NILFS_DEV_ATTR_STRUCT(segctor);
@@ -111,6 +118,9 @@ NILFS_DEV_ATTR_STRUCT(segctor);
#define NILFS_SEGMENTS_RW_ATTR(name) \
NILFS_RW_ATTR(segs_info, name)
#define NILFS_MOUNTED_SNAPSHOTS_RO_ATTR(name) \
NILFS_RO_ATTR(mounted_snapshots, name)
#define NILFS_CHECKPOINTS_RO_ATTR(name) \
NILFS_RO_ATTR(checkpoints, name)
#define NILFS_CHECKPOINTS_RW_ATTR(name) \
@@ -134,6 +144,8 @@ NILFS_DEV_ATTR_STRUCT(segctor);
(&nilfs_dev_attr_##name.attr)
#define NILFS_SEGMENTS_ATTR_LIST(name) \
(&nilfs_segments_attr_##name.attr)
#define NILFS_MOUNTED_SNAPSHOTS_ATTR_LIST(name) \
(&nilfs_mounted_snapshots_attr_##name.attr)
#define NILFS_CHECKPOINTS_ATTR_LIST(name) \
(&nilfs_checkpoints_attr_##name.attr)
#define NILFS_SUPERBLOCK_ATTR_LIST(name) \