[PATCH] dm mpath: enable DM_TARGET_ATOMIC_WRITES

[John Garry]

Both the bio- and rq-based paths have no problem supporting REQ_ATOMIC,
so enable DM_TARGET_ATOMIC_WRITES.

Signed-off-by: John Garry <john.g.ga...@oracle.com>

diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c
index aaf4a0a4b0ebb..5dd90b2cdb9bb 100644
--- a/drivers/md/dm-mpath.c
+++ b/drivers/md/dm-mpath.c
@@ -2307,7 +2307,7 @@ static struct target_type multipath_target = {
        .name = "multipath",
        .version = {1, 15, 0},
        .features = DM_TARGET_SINGLETON | DM_TARGET_IMMUTABLE |
-                   DM_TARGET_PASSES_INTEGRITY,
+                   DM_TARGET_PASSES_INTEGRITY | DM_TARGET_ATOMIC_WRITES,
        .module = THIS_MODULE,
        .ctr = multipath_ctr,
        .dtr = multipath_dtr,
-- 
2.43.5