--- x/block/blk.h
+++ y/block/blk.h
@@ -72,8 +72,6 @@ static inline int bio_queue_enter(struct
 	struct request_queue *q = bdev_get_queue(bio->bi_bdev);
 
 	if (blk_try_enter_queue(q, false)) {
-		rwsem_acquire_read(&q->io_lockdep_map, 0, 0, _RET_IP_);
-		rwsem_release(&q->io_lockdep_map, _RET_IP_);
 		return 0;
 	}
 	return __bio_queue_enter(q, bio);
--- x/block/blk-core.c
+++ y/block/blk-core.c
@@ -358,8 +358,6 @@ int __bio_queue_enter(struct request_que
 			goto dead;
 	}
 
-	rwsem_acquire_read(&q->io_lockdep_map, 0, 0, _RET_IP_);
-	rwsem_release(&q->io_lockdep_map, _RET_IP_);
 	return 0;
 dead:
 	bio_io_error(bio);