diff --git a/block/blk-mq.c b/block/blk-mq.c
index 6914f9bd470ac2bf48de797f1ddd53ad27dd6604..473ce403906055f56d81b99641cf9181d99ba71e 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -190,6 +190,8 @@ static void blk_mq_rq_ctx_init(struct request_queue *q, struct blk_mq_ctx *ctx,
 
 	rq->mq_ctx = ctx;
 	rq->cmd_flags = rw_flags;
+	rq->start_time = jiffies;
+	set_start_time_ns(rq);
 	ctx->rq_dispatched[rw_is_sync(rw_flags)]++;
 }