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Commit 0196d6b4 authored by Jianchao Wang's avatar Jianchao Wang Committed by Jens Axboe
Browse files

blk-mq: return when hctx is stopped in blk_mq_run_work_fn 



If a hardware queue is stopped, it should not be run again before
explicitly started. Ignore stopped queues in blk_mq_run_work_fn(),
fixing a regression recently introduced when the START_ON_RUN bit
was removed.

Fixes: 15fe8a90 ("blk-mq: remove blk_mq_delay_queue()")
Reviewed-by: default avatarMing Lei <ming.lei@redhat.com>
Reviewed-by: default avatarBart Van Assche <bart.vanassche@wdc.com>
Signed-off-by: default avatarJianchao Wang <jianchao.w.wang@oracle.com>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent f956d08a

block/blk-mq.c

+1 −1
Original line number Diff line number Diff line
@@ -1475,7 +1475,7 @@ static void blk_mq_run_work_fn(struct work_struct *work) 
	 * If we are stopped, don't run the queue.

	 */

	if (test_bit(BLK_MQ_S_STOPPED, &hctx->state))

		clear_bit(BLK_MQ_S_STOPPED, &hctx->state);

		return;



	__blk_mq_run_hw_queue(hctx);

}