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

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This patch adds creation of <snapshot> group for every mounted
snapshot in /sys/fs/nilfs2/<device>/mounted_snapshots group.

The group contains details about mounted snapshot:
(1) inodes_count - show number of inodes for snapshot.
(2) blocks_count - show number of blocks for snapshot.

Signed-off-by: Vyacheslav Dubeyko <[email protected]>
Cc: Vyacheslav Dubeyko <[email protected]>
Cc: Ryusuke Konishi <[email protected]>
Cc: Michael L. Semon <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Vyacheslav Dubeyko 2014-08-08 14:20:52 -07:00 • committed by Linus Torvalds
commit a5a7332a29
4 changed files with 163 additions and 0 deletions
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19
Documentation/ABI/testing/sysfs-fs-nilfs2
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@ -248,3 +248,22 @@ Contact: "Vyacheslav Dubeyko" <[email protected]>
Description:
Describe content of /sys/fs/nilfs2/<device>/mounted_snapshots
group.
What: /sys/fs/nilfs2/<device>/mounted_snapshots/<id>/inodes_count
Date: April 2014
Contact: "Vyacheslav Dubeyko" <[email protected]>
Description:
Show number of inodes for snapshot.
What: /sys/fs/nilfs2/<device>/mounted_snapshots/<id>/blocks_count
Date: April 2014
Contact: "Vyacheslav Dubeyko" <[email protected]>
Description:
Show number of blocks for snapshot.
What: /sys/fs/nilfs2/<device>/mounted_snapshots/<id>/README
Date: April 2014
Contact: "Vyacheslav Dubeyko" <[email protected]>
Description:
Describe attributes of /sys/fs/nilfs2/<device>/mounted_snapshots/<id>
group.