1 files changed, 4 insertions, 2 deletions

diff --git a/block/blk-core.c b/block/blk-core.c
index 9fe174dc74d1..1d94f15d7f0d 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -127,6 +127,7 @@ void blk_rq_init(struct request_queue *q, struct request *rq)
         rq->tag = -1;
         rq->ref_count = 1;
         rq->start_time = jiffies;
+        set_start_time_ns(rq);
 }
 EXPORT_SYMBOL(blk_rq_init);
 
@@ -1855,8 +1856,10 @@ void blk_dequeue_request(struct request *rq)
          * and to it is freed is accounted as io that is in progress at
          * the driver side.
          */
-        if (blk_account_rq(rq))
+        if (blk_account_rq(rq)) {
                 q->in_flight[rq_is_sync(rq)]++;
+                set_io_start_time_ns(rq);
+        }
 }
 
 /**
@@ -2517,4 +2520,3 @@ int __init blk_dev_init(void)
 
         return 0;
 }
-