2459 	struct btrfs_delayed_ref_head *locked_ref = NULL;  in __btrfs_run_delayed_refs()  local
2470 		if (!locked_ref) {  in __btrfs_run_delayed_refs()
2475 			locked_ref = btrfs_select_ref_head(trans);  in __btrfs_run_delayed_refs()
2476 			if (!locked_ref) {  in __btrfs_run_delayed_refs()
2483 			ret = btrfs_delayed_ref_lock(trans, locked_ref);  in __btrfs_run_delayed_refs()
2492 				locked_ref = NULL;  in __btrfs_run_delayed_refs()
2510 		spin_lock(&locked_ref->lock);  in __btrfs_run_delayed_refs()
2512 					 locked_ref);  in __btrfs_run_delayed_refs()
2518 		ref = select_delayed_ref(locked_ref);  in __btrfs_run_delayed_refs()
2522 			spin_unlock(&locked_ref->lock);  in __btrfs_run_delayed_refs()
2523 			btrfs_delayed_ref_unlock(locked_ref);  in __btrfs_run_delayed_refs()
2525 			locked_ref->processing = 0;  in __btrfs_run_delayed_refs()
2528 			locked_ref = NULL;  in __btrfs_run_delayed_refs()
2538 		must_insert_reserved = locked_ref->must_insert_reserved;  in __btrfs_run_delayed_refs()
2539 		locked_ref->must_insert_reserved = 0;  in __btrfs_run_delayed_refs()
2541 		extent_op = locked_ref->extent_op;  in __btrfs_run_delayed_refs()
2542 		locked_ref->extent_op = NULL;  in __btrfs_run_delayed_refs()
2551 			ref = &locked_ref->node;  in __btrfs_run_delayed_refs()
2559 				spin_unlock(&locked_ref->lock);  in __btrfs_run_delayed_refs()
2572 						locked_ref->must_insert_reserved = 1;  in __btrfs_run_delayed_refs()
2573 					locked_ref->processing = 0;  in __btrfs_run_delayed_refs()
2575 					btrfs_delayed_ref_unlock(locked_ref);  in __btrfs_run_delayed_refs()
2586 			spin_unlock(&locked_ref->lock);  in __btrfs_run_delayed_refs()
2588 			spin_lock(&locked_ref->lock);  in __btrfs_run_delayed_refs()
2589 			if (!list_empty(&locked_ref->ref_list) ||  in __btrfs_run_delayed_refs()
2590 			    locked_ref->extent_op) {  in __btrfs_run_delayed_refs()
2591 				spin_unlock(&locked_ref->lock);  in __btrfs_run_delayed_refs()
2597 			rb_erase(&locked_ref->href_node,  in __btrfs_run_delayed_refs()
2615 				locked_ref->node.ref_mod -= ref->ref_mod;  in __btrfs_run_delayed_refs()
2618 				locked_ref->node.ref_mod += ref->ref_mod;  in __btrfs_run_delayed_refs()
2624 		spin_unlock(&locked_ref->lock);  in __btrfs_run_delayed_refs()
2631 			locked_ref->processing = 0;  in __btrfs_run_delayed_refs()
2632 			btrfs_delayed_ref_unlock(locked_ref);  in __btrfs_run_delayed_refs()
2645 			if (locked_ref->is_data &&  in __btrfs_run_delayed_refs()
2646 			    locked_ref->total_ref_mod < 0) {  in __btrfs_run_delayed_refs()
2651 			btrfs_delayed_ref_unlock(locked_ref);  in __btrfs_run_delayed_refs()
2652 			locked_ref = NULL;  in __btrfs_run_delayed_refs()