2360 	struct btrfs_delayed_ref_head *locked_ref = NULL;  in __btrfs_run_delayed_refs()  local
2371 		if (!locked_ref) {  in __btrfs_run_delayed_refs()
2376 			locked_ref = btrfs_select_ref_head(trans);  in __btrfs_run_delayed_refs()
2377 			if (!locked_ref) {  in __btrfs_run_delayed_refs()
2384 			ret = btrfs_delayed_ref_lock(trans, locked_ref);  in __btrfs_run_delayed_refs()
2393 				locked_ref = NULL;  in __btrfs_run_delayed_refs()
2406 		spin_lock(&locked_ref->lock);  in __btrfs_run_delayed_refs()
2408 					 locked_ref);  in __btrfs_run_delayed_refs()
2414 		ref = select_delayed_ref(locked_ref);  in __btrfs_run_delayed_refs()
2418 			spin_unlock(&locked_ref->lock);  in __btrfs_run_delayed_refs()
2419 			btrfs_delayed_ref_unlock(locked_ref);  in __btrfs_run_delayed_refs()
2421 			locked_ref->processing = 0;  in __btrfs_run_delayed_refs()
2424 			locked_ref = NULL;  in __btrfs_run_delayed_refs()
2434 		must_insert_reserved = locked_ref->must_insert_reserved;  in __btrfs_run_delayed_refs()
2435 		locked_ref->must_insert_reserved = 0;  in __btrfs_run_delayed_refs()
2437 		extent_op = locked_ref->extent_op;  in __btrfs_run_delayed_refs()
2438 		locked_ref->extent_op = NULL;  in __btrfs_run_delayed_refs()
2447 			ref = &locked_ref->node;  in __btrfs_run_delayed_refs()
2455 				spin_unlock(&locked_ref->lock);  in __btrfs_run_delayed_refs()
2468 						locked_ref->must_insert_reserved = 1;  in __btrfs_run_delayed_refs()
2469 					locked_ref->processing = 0;  in __btrfs_run_delayed_refs()
2471 					btrfs_delayed_ref_unlock(locked_ref);  in __btrfs_run_delayed_refs()
2482 			spin_unlock(&locked_ref->lock);  in __btrfs_run_delayed_refs()
2484 			spin_lock(&locked_ref->lock);  in __btrfs_run_delayed_refs()
2485 			if (rb_first(&locked_ref->ref_root) ||  in __btrfs_run_delayed_refs()
2486 			    locked_ref->extent_op) {  in __btrfs_run_delayed_refs()
2487 				spin_unlock(&locked_ref->lock);  in __btrfs_run_delayed_refs()
2493 			rb_erase(&locked_ref->href_node,  in __btrfs_run_delayed_refs()
2499 			rb_erase(&ref->rb_node, &locked_ref->ref_root);  in __btrfs_run_delayed_refs()
2511 				locked_ref->node.ref_mod -= ref->ref_mod;  in __btrfs_run_delayed_refs()
2514 				locked_ref->node.ref_mod += ref->ref_mod;  in __btrfs_run_delayed_refs()
2520 		spin_unlock(&locked_ref->lock);  in __btrfs_run_delayed_refs()
2527 			locked_ref->processing = 0;  in __btrfs_run_delayed_refs()
2528 			btrfs_delayed_ref_unlock(locked_ref);  in __btrfs_run_delayed_refs()
2541 			if (locked_ref->is_data &&  in __btrfs_run_delayed_refs()
2542 			    locked_ref->total_ref_mod < 0) {  in __btrfs_run_delayed_refs()
2547 			btrfs_delayed_ref_unlock(locked_ref);  in __btrfs_run_delayed_refs()
2548 			locked_ref = NULL;  in __btrfs_run_delayed_refs()