linux/Documentation/device-mapper
Mikulas Patocka d698aa4500 dm snapshot: add merge target
The snapshot-merge target allows a snapshot to be merged back into the
snapshot's origin device.

One anticipated use of snapshot merging is the rollback of filesystems
to back out problematic system upgrades.

This patch adds snapshot-merge target management to both
dm_snapshot_init() and dm_snapshot_exit().  As an initial place-holder,
snapshot-merge is identical to the snapshot target.  Documentation is
provided.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2009-12-10 23:52:30 +00:00
..
delay.txt
dm-crypt.txt
dm-io.txt
dm-log.txt dm raid1: add userspace log 2009-06-22 10:12:35 +01:00
dm-queue-length.txt
dm-service-time.txt
dm-uevent.txt
kcopyd.txt
linear.txt
snapshot.txt dm snapshot: add merge target 2009-12-10 23:52:30 +00:00
striped.txt
zero.txt