Commit a8239f03 authored by Yu Kuai's avatar Yu Kuai Committed by Jens Axboe
Browse files

blk-mq: remove unused function blk_mq_queue_stopped() 



blk_mq_queue_stopped() doesn't have any caller, which was found by
code coverage test, thus remove it.

Signed-off-by: default avatarYu Kuai <yukuai3@huawei.com>
Link: https://lore.kernel.org/r/20220818063555.3741222-1-yukuai1@huaweicloud.com


Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent e6190dd0

block/blk-mq.c

+0 −20
Original line number Diff line number Diff line
@@ -2229,26 +2229,6 @@ void blk_mq_delay_run_hw_queues(struct request_queue *q, unsigned long msecs) 
}

EXPORT_SYMBOL(blk_mq_delay_run_hw_queues);



/**

 * blk_mq_queue_stopped() - check whether one or more hctxs have been stopped

 * @q: request queue.

 *

 * The caller is responsible for serializing this function against

 * blk_mq_{start,stop}_hw_queue().

 */

bool blk_mq_queue_stopped(struct request_queue *q)

{

	struct blk_mq_hw_ctx *hctx;

	unsigned long i;



	queue_for_each_hw_ctx(q, hctx, i)

		if (blk_mq_hctx_stopped(hctx))

			return true;



	return false;

}

EXPORT_SYMBOL(blk_mq_queue_stopped);



/*

 * This function is often used for pausing .queue_rq() by driver when

 * there isn't enough resource or some conditions aren't satisfied, and

include/linux/blk-mq.h

+0 −1
Original line number Diff line number Diff line
@@ -857,7 +857,6 @@ void blk_mq_kick_requeue_list(struct request_queue *q); 
void blk_mq_delay_kick_requeue_list(struct request_queue *q, unsigned long msecs);

void blk_mq_complete_request(struct request *rq);

bool blk_mq_complete_request_remote(struct request *rq);

bool blk_mq_queue_stopped(struct request_queue *q);

void blk_mq_stop_hw_queue(struct blk_mq_hw_ctx *hctx);

void blk_mq_start_hw_queue(struct blk_mq_hw_ctx *hctx);

void blk_mq_stop_hw_queues(struct request_queue *q);