tree 60959c326d01807f3e9a72bd1799717d0166ac6e
parent 67a46dad25ccc8910995d8671f7ec17a6bc823cb
author Mikulas Patocka <mpatocka@redhat.com> 1260489142 +0000
committer Alasdair G Kergon <agk@redhat.com> 1260489142 +0000

dm io: handle empty barriers

Accept empty barriers in dm-io.

dm-io will process empty write barrier requests just like the other
read/write requests.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>