Merge tag 'for-5.15/block-2021-08-30' of git://git.kernel.dk/linux-block

[linux-2.6-microblaze.git] / block / mq-deadline.c

diff --git a/block/mq-deadline.c b/block/mq-deadline.c
index 3692067..3c3693c 100644 (file)
--- a/block/mq-deadline.c
+++ b/block/mq-deadline.c
@@ -629,6 +629,8 @@ static int dd_request_merge(struct request_queue *q, struct request **rq,
 
                if (elv_bio_merge_ok(__rq, bio)) {
                        *rq = __rq;
+                       if (blk_discard_mergable(__rq))
+                               return ELEVATOR_DISCARD_MERGE;
                        return ELEVATOR_FRONT_MERGE;
                }
        }