VisionFive2 Linux kernel

author: Ming Lei <ming.lei@redhat.com> 2021-04-06 11:19:33 +0800 committer: Jens Axboe <axboe@kernel.dk> 2021-04-07 10:15:23 -0600 commit: 580dca8143d215977811bd2ff881e1e4f6ff39f0 parent: 393bb12e00580aaa23356504eed38d8f5571153a

Commit Summary:

blk-mq: set default elevator as deadline in case of hctx shared tagset

Diffstat:

1 file changed, 2 insertions, 1 deletion

diff --git a/block/elevator.c b/block/elevator.c
index 293c5c81397a..440699c28119 100644
--- a/block/elevator.c
+++ b/block/elevator.c
@@ -621,7 +621,8 @@ static inline bool elv_support_iosched(struct request_queue *q)
  */
 static struct elevator_type *elevator_get_default(struct request_queue *q)
 {
-	if (q->nr_hw_queues != 1)
+	if (q->nr_hw_queues != 1 &&
+			!blk_mq_is_sbitmap_shared(q->tag_set->flags))
 		return NULL;
 
 	return elevator_get(q, "mq-deadline", false);