Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit e36f724b authored by Mike Snitzer's avatar Mike Snitzer Committed by Jens Axboe
Browse files

block: Adjust elv_iosched_show to return "none" for bio-based DM 



Bio-based DM doesn't use an elevator (queue is !blk_queue_stackable()).

Longer-term DM will not allocate an elevator for bio-based DM.  But even
then there will be small potential for an elevator to be allocated for
a request-based DM table only to have a bio-based table be loaded in the
end.

Displaying "none" for bio-based DM will help avoid user confusion.

Signed-off-by: default avatarMike Snitzer <snitzer@redhat.com>
Signed-off-by: default avatarJens Axboe <jens.axboe@oracle.com>
parent 80b15c73

block/elevator.c

+1 −1
Original line number Diff line number Diff line
@@ -1097,7 +1097,7 @@ ssize_t elv_iosched_show(struct request_queue *q, char *name) 
	struct elevator_type *__e;

	int len = 0;



	if (!q->elevator)

	if (!q->elevator || !blk_queue_stackable(q))

		return sprintf(name, "none\n");



	elv = e->elevator_type;