If the tag_set has BLK_MQ_F_NO_SCHED flag set we will never show any scheduler, so exit early. Signed-off-by: Christoph Hellwig <hch@xxxxxx> --- block/elevator.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/block/elevator.c b/block/elevator.c index d0e48839f6764..92096e5aabd36 100644 --- a/block/elevator.c +++ b/block/elevator.c @@ -777,7 +777,7 @@ ssize_t elv_iosched_show(struct request_queue *q, char *name) struct elevator_type *__e; int len = 0; - if (!queue_is_mq(q)) + if (!elv_support_iosched(q)) return sprintf(name, "none\n"); if (!q->elevator) @@ -791,8 +791,7 @@ ssize_t elv_iosched_show(struct request_queue *q, char *name) len += sprintf(name+len, "[%s] ", elv->elevator_name); continue; } - if (elv_support_iosched(q) && - elevator_match(__e, __e->elevator_name, + if (elevator_match(__e, __e->elevator_name, q->required_elevator_features)) len += sprintf(name+len, "%s ", __e->elevator_name); } -- 2.30.2
