blk-mq: new multi-queue block IO queueing mechanism

[linux-2.6-block.git] / block / blk-exec.c

diff --git a/block/blk-exec.c b/block/blk-exec.c
index 6b18d82d91c57d6dd846a3194f69dc12e9fa73a2..c3edf9dff566f47883f3fac946b72e1e208c5286 100644 (file)
--- a/block/blk-exec.c
+++ b/block/blk-exec.c
@@ -5,6 +5,7 @@
 #include <linux/module.h>
 #include <linux/bio.h>
 #include <linux/blkdev.h>
+#include <linux/blk-mq.h>
 #include <linux/sched/sysctl.h>
 
 #include "blk.h"
@@ -58,6 +59,12 @@ void blk_execute_rq_nowait(struct request_queue *q, struct gendisk *bd_disk,
 
        rq->rq_disk = bd_disk;
        rq->end_io = done;
+
+       if (q->mq_ops) {
+               blk_mq_insert_request(q, rq, true);
+               return;
+       }
+
        /*
         * need to check this before __blk_run_queue(), because rq can
         * be freed before that returns.