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block: pass 'run_queue' to blk_mq_request_bypass_insert 

Block flush need this function without running the queue, so add a
parameter controlling whether we run it or not.

Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Ming Lei 2017-11-02 23:24:34 +08:00 committed by Jens Axboe
parent 9c71c83c85
commit b0850297c7
3 changed files with 5 additions and 4 deletions
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2
block/blk-core.c
View File

@ -2397,7 +2397,7 @@ blk_status_t blk_insert_cloned_request(struct request_queue *q, struct request *
* bypass a potential scheduler on the bottom device for
* insert.
*/
blk_mq_request_bypass_insert(rq);
blk_mq_request_bypass_insert(rq, true);
return BLK_STS_OK;
}

5
block/blk-mq.c
View File

@ -1492,7 +1492,7 @@ void __blk_mq_insert_request(struct blk_mq_hw_ctx *hctx, struct request *rq,
* Should only be used carefully, when the caller knows we want to
* bypass a potential IO scheduler on the target device.
*/
void blk_mq_request_bypass_insert(struct request *rq)
void blk_mq_request_bypass_insert(struct request *rq, bool run_queue)
{
struct blk_mq_ctx *ctx = rq->mq_ctx;
struct blk_mq_hw_ctx *hctx = blk_mq_map_queue(rq->q, ctx->cpu);
@ -1501,7 +1501,8 @@ void blk_mq_request_bypass_insert(struct request *rq)
list_add_tail(&rq->queuelist, &hctx->dispatch);
spin_unlock(&hctx->lock);
blk_mq_run_hw_queue(hctx, false);
if (run_queue)
blk_mq_run_hw_queue(hctx, false);
}
void blk_mq_insert_requests(struct blk_mq_hw_ctx *hctx, struct blk_mq_ctx *ctx,

2
block/blk-mq.h
View File

@ -56,7 +56,7 @@ int blk_mq_alloc_rqs(struct blk_mq_tag_set *set, struct blk_mq_tags *tags,
*/
void __blk_mq_insert_request(struct blk_mq_hw_ctx *hctx, struct request *rq,
bool at_head);
void blk_mq_request_bypass_insert(struct request *rq);
void blk_mq_request_bypass_insert(struct request *rq, bool run_queue);
void blk_mq_insert_requests(struct blk_mq_hw_ctx *hctx, struct blk_mq_ctx *ctx,
struct list_head *list);