commit | 10b8106a70433e14153469ebbdd189776500e238 | [log] [tgz] |
---|---|---|
author | Mike Snitzer <snitzer@redhat.com> | Thu Dec 10 23:52:31 2009 +0000 |
committer | Alasdair G Kergon <agk@redhat.com> | Thu Dec 10 23:52:31 2009 +0000 |
tree | 5d46ee65e40d165494ef1d4342e03f2fcfaa0492 | |
parent | 3452c2a1eb5b93c1b9fb0d22bd5b07c0cee4dc29 [diff] |
dm snapshot: support barriers in snapshot merge target Sets num_flush_requests=2 to support flushing both the origin and cow devices used by the snapshot-merge target. Also, snapshot_ctr() now gets the origin device using FMODE_WRITE if the target is snapshot-merge (which writes to the origin device). Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>