diff --git a/drivers/block/ll_rw_blk.c b/drivers/block/ll_rw_blk.c
index c581f9138c472277f898506b3c7c58606693d9c8..265de858d4dea9e5121a74f14edbbbb418d17cd6 100644
--- a/drivers/block/ll_rw_blk.c
+++ b/drivers/block/ll_rw_blk.c
@@ -1842,7 +1842,6 @@ static void __freed_request(request_queue_t *q, int rw)
 		clear_queue_congested(q, rw);
 
 	if (rl->count[rw] + 1 <= q->nr_requests) {
-		smp_mb();
 		if (waitqueue_active(&rl->wait[rw]))
 			wake_up(&rl->wait[rw]);