diff --git a/block/blk-mq.c b/block/blk-mq.c
index 2a1a653a805433ea5c60c428d8ec2777216c44a9..d8534107bb6fd80453011cc8e033f21a925c36b5 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -1259,6 +1259,14 @@ bool blk_mq_dispatch_rq_list(struct request_queue *q, struct list_head *list,
 	if (!list_empty(list)) {
 		bool needs_restart;
 
+		/*
+		 * If we didn't flush the entire list, we could have told
+		 * the driver there was more coming, but that turned out to
+		 * be a lie.
+		 */
+		if (q->mq_ops->commit_rqs)
+			q->mq_ops->commit_rqs(hctx);
+
 		spin_lock(&hctx->lock);
 		list_splice_init(list, &hctx->dispatch);
 		spin_unlock(&hctx->lock);
@@ -1865,6 +1873,14 @@ void blk_mq_try_issue_list_directly(struct blk_mq_hw_ctx *hctx,
 			blk_mq_end_request(rq, ret);
 		}
 	}
+
+	/*
+	 * If we didn't flush the entire list, we could have told
+	 * the driver there was more coming, but that turned out to
+	 * be a lie.
+	 */
+	if (!list_empty(list) && hctx->queue->mq_ops->commit_rqs)
+		hctx->queue->mq_ops->commit_rqs(hctx);
 }
 
 static void blk_add_rq_to_plug(struct blk_plug *plug, struct request *rq)
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h
index b8de11e0603bc03f6a92a90a9cea5f609bea4787..467f1dd21ccf681e09dce5e862633164dd8c3298 100644
--- a/include/linux/blk-mq.h
+++ b/include/linux/blk-mq.h
@@ -117,6 +117,7 @@ struct blk_mq_queue_data {
 
 typedef blk_status_t (queue_rq_fn)(struct blk_mq_hw_ctx *,
 		const struct blk_mq_queue_data *);
+typedef void (commit_rqs_fn)(struct blk_mq_hw_ctx *);
 /* takes rq->cmd_flags as input, returns a hardware type index */
 typedef int (rq_flags_to_type_fn)(struct request_queue *, unsigned int);
 typedef bool (get_budget_fn)(struct blk_mq_hw_ctx *);
@@ -144,6 +145,15 @@ struct blk_mq_ops {
 	 */
 	queue_rq_fn		*queue_rq;
 
+	/*
+	 * If a driver uses bd->last to judge when to submit requests to
+	 * hardware, it must define this function. In case of errors that
+	 * make us stop issuing further requests, this hook serves the
+	 * purpose of kicking the hardware (which the last request otherwise
+	 * would have done).
+	 */
+	commit_rqs_fn		*commit_rqs;
+
 	/*
 	 * Return a queue map type for the given request/bio flags
 	 */