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Diffstat (limited to 'block/blk-mq-sched.c')
-rw-r--r--block/blk-mq-sched.c13
1 files changed, 6 insertions, 7 deletions
diff --git a/block/blk-mq-sched.c b/block/blk-mq-sched.c
index 80273245d11a..2403a5c2b053 100644
--- a/block/blk-mq-sched.c
+++ b/block/blk-mq-sched.c
@@ -294,8 +294,7 @@ static int blk_mq_do_dispatch_ctx(struct blk_mq_hw_ctx *hctx)
static int __blk_mq_sched_dispatch_requests(struct blk_mq_hw_ctx *hctx)
{
struct request_queue *q = hctx->queue;
- struct elevator_queue *e = q->elevator;
- const bool has_sched_dispatch = e && e->type->ops.dispatch_request;
+ const bool has_sched = q->elevator;
int ret = 0;
LIST_HEAD(rq_list);
@@ -326,12 +325,12 @@ static int __blk_mq_sched_dispatch_requests(struct blk_mq_hw_ctx *hctx)
if (!list_empty(&rq_list)) {
blk_mq_sched_mark_restart_hctx(hctx);
if (blk_mq_dispatch_rq_list(hctx, &rq_list, 0)) {
- if (has_sched_dispatch)
+ if (has_sched)
ret = blk_mq_do_dispatch_sched(hctx);
else
ret = blk_mq_do_dispatch_ctx(hctx);
}
- } else if (has_sched_dispatch) {
+ } else if (has_sched) {
ret = blk_mq_do_dispatch_sched(hctx);
} else if (hctx->dispatch_busy) {
/* dequeue request one by one from sw queue if queue is busy */
@@ -463,7 +462,7 @@ void blk_mq_sched_insert_request(struct request *rq, bool at_head,
goto run;
}
- if (e && e->type->ops.insert_requests) {
+ if (e) {
LIST_HEAD(list);
list_add(&rq->queuelist, &list);
@@ -494,9 +493,9 @@ void blk_mq_sched_insert_requests(struct blk_mq_hw_ctx *hctx,
percpu_ref_get(&q->q_usage_counter);
e = hctx->queue->elevator;
- if (e && e->type->ops.insert_requests)
+ if (e) {
e->type->ops.insert_requests(hctx, list, false);
- else {
+ } else {
/*
* try to issue requests directly if the hw queue isn't
* busy in case of 'none' scheduler, and this way may save