bcache/md: Use raid stripe size

[~andy/linux] / drivers / md / raid5.c

diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index eea63372e4d30533b2255159c8b428b2ad90acb3..1cfb22c025b6b5b8f02c1fe907e2810adb384a73 100644 (file)
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -6101,6 +6101,7 @@ static int run(struct mddev *mddev)
                blk_queue_io_min(mddev->queue, chunk_size);
                blk_queue_io_opt(mddev->queue, chunk_size *
                                 (conf->raid_disks - conf->max_degraded));
+               mddev->queue->limits.raid_partial_stripes_expensive = 1;
                /*
                 * We can only discard a whole stripe. It doesn't make sense to
                 * discard data disk but write parity disk