[dm-devel] [PATCH 2/5] dm-mpath: return DM_MAPIO_REQUEUE in case of rq allocation failure

Ming Lei ming.lei at redhat.com
Fri Sep 15 16:44:53 UTC 2017


blk-mq will rerun queue via RESTART after one request is completion,
so not necessary to wait random time for requeuing, it should trust
blk-mq to do it.

Signed-off-by: Ming Lei <ming.lei at redhat.com>
---
 drivers/md/dm-mpath.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c
index 96aedaac2c64..f5a1088a6e79 100644
--- a/drivers/md/dm-mpath.c
+++ b/drivers/md/dm-mpath.c
@@ -505,7 +505,7 @@ static int multipath_clone_and_map(struct dm_target *ti, struct request *rq,
 			atomic_inc(&m->pg_init_in_progress);
 			activate_or_offline_path(pgpath);
 		}
-		return DM_MAPIO_DELAY_REQUEUE;
+		return DM_MAPIO_REQUEUE;
 	}
 	clone->bio = clone->biotail = NULL;
 	clone->rq_disk = bdev->bd_disk;
-- 
2.9.5




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