blkdev_dequeue_request 164 block/blk-barrier.c blkdev_dequeue_request(rq); blkdev_dequeue_request 222 block/blk-barrier.c blkdev_dequeue_request(rq); blkdev_dequeue_request 1756 block/blk-core.c blkdev_dequeue_request(req); blkdev_dequeue_request 378 block/blk-tag.c blkdev_dequeue_request(rq);