Commit 32a50fab authored Jun 02, 2018 by Ming Lei Committed by Jens Axboe Jun 02, 2018

blk-mq: update nr_requests when switching to 'none' scheduler



Now we setup q->nr_requests when switching to one new scheduler,
but not do it for 'none', then q->nr_requests may not be correct
for 'none'.

This patch fixes this issue by always updating 'nr_requests' when
switching to 'none'.

Cc: Marco Patalano <mpatalan@redhat.com>
Cc: "Ewan D. Milne" <emilne@redhat.com>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

parent cd4a4ae4

block/blk-mq-sched.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -585,6 +585,7 @@ int blk_mq_init_sched(struct request_queue q, struct elevator_type e)

		if (!e) {
		q->elevator = NULL;
		q->nr_requests = q->tag_set->queue_depth;
		return 0;
		}