From: Mikulas Patocka <mpatocka@redhat.com>

Flush support for dm-multipath target.

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

---
 drivers/md/dm-mpath.c |    2 ++
 1 file changed, 2 insertions(+)

Index: linux-2.6.30/drivers/md/dm-mpath.c
===================================================================
--- linux-2.6.30.orig/drivers/md/dm-mpath.c
+++ linux-2.6.30/drivers/md/dm-mpath.c
@@ -835,6 +835,8 @@ static int multipath_ctr(struct dm_targe
 		goto bad;
 	}
 
+	ti->num_flush_requests = 1;
+
 	return 0;
 
  bad: