void blk_mq_sched_insert_request(struct request *rq, bool at_head,
bool run_queue, bool async);
-void blk_mq_sched_insert_requests(struct blk_mq_hw_ctx *hctx,
- struct blk_mq_ctx *ctx,
- struct list_head *list, bool run_queue_async);
void blk_mq_sched_dispatch_requests(struct blk_mq_hw_ctx *hctx);