X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=block%2Fblk-core.c;h=33e2f62d50622ea8b40153175d0f44d96df399a6;hb=731680726b7372a7c43fd523f6e0102971566695;hp=c487b94c59e3052074f5e40c99680d0cb709b517;hpb=12261f4ed43d2c9d6015ee3e4300070c64a6efaf;p=firefly-linux-kernel-4.4.55.git

diff --git a/block/blk-core.c b/block/blk-core.c
index c487b94c59e3..33e2f62d5062 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -206,6 +206,22 @@ void blk_delay_queue(struct request_queue *q, unsigned long msecs)
 }
 EXPORT_SYMBOL(blk_delay_queue);
 
+/**
+ * blk_start_queue_async - asynchronously restart a previously stopped queue
+ * @q:    The &struct request_queue in question
+ *
+ * Description:
+ *   blk_start_queue_async() will clear the stop flag on the queue, and
+ *   ensure that the request_fn for the queue is run from an async
+ *   context.
+ **/
+void blk_start_queue_async(struct request_queue *q)
+{
+	queue_flag_clear(QUEUE_FLAG_STOPPED, q);
+	blk_run_queue_async(q);
+}
+EXPORT_SYMBOL(blk_start_queue_async);
+
 /**
  * blk_start_queue - restart a previously stopped queue
  * @q:    The &struct request_queue in question