diff --git a/block/blk-mq.c b/block/blk-mq.c
index eff4f72ce83b..a29d8ac9d3e3 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -4553,8 +4553,7 @@ static void __blk_mq_realloc_hw_ctxs(struct blk_mq_tag_set *set,
 		 * Make sure reading the old queue_hw_ctx from other
 		 * context concurrently won't trigger uaf.
 		 */
-		synchronize_rcu_expedited();
-		kfree(hctxs);
+		kfree_rcu_mightsleep(hctxs);
 		hctxs = new_hctxs;
 	}