blk-mq: fail the request in case issue failure

[mirror_ubuntu-bionic-kernel.git] / block / blk-mq.h

diff --git a/block/blk-mq.h b/block/blk-mq.h
index 6c7c3ff5bf627d3e36a8e1bf1feca66ff00ac74d..b78cdcad7d7f34ec7247c62a774314eb49797d1d 100644 (file)
--- a/block/blk-mq.h
+++ b/block/blk-mq.h
@@ -28,7 +28,7 @@ struct blk_mq_ctx {
 } ____cacheline_aligned_in_smp;
 
 void blk_mq_freeze_queue(struct request_queue *q);
-void blk_mq_free_queue(struct request_queue *q);
+void blk_mq_exit_queue(struct request_queue *q);
 int blk_mq_update_nr_requests(struct request_queue *q, unsigned int nr);
 void blk_mq_wake_waiters(struct request_queue *q);
 bool blk_mq_dispatch_rq_list(struct request_queue *, struct list_head *, bool);
@@ -60,6 +60,11 @@ void blk_mq_request_bypass_insert(struct request *rq, bool run_queue);
 void blk_mq_insert_requests(struct blk_mq_hw_ctx *hctx, struct blk_mq_ctx *ctx,
                                struct list_head *list);
 
+/* Used by blk_insert_cloned_request() to issue request directly */
+blk_status_t blk_mq_request_issue_directly(struct request *rq);
+void blk_mq_try_issue_list_directly(struct blk_mq_hw_ctx *hctx,
+                                   struct list_head *list);
+
 /*
  * CPU -> queue mappings
  */
@@ -137,7 +142,9 @@ static inline bool blk_mq_hw_queue_mapped(struct blk_mq_hw_ctx *hctx)
 }
 
 void blk_mq_in_flight(struct request_queue *q, struct hd_struct *part,
-                       unsigned int inflight[2]);
+                     unsigned int inflight[2]);
+void blk_mq_in_flight_rw(struct request_queue *q, struct hd_struct *part,
+                        unsigned int inflight[2]);
 
 static inline void blk_mq_put_dispatch_budget(struct blk_mq_hw_ctx *hctx)
 {