1343 			       int *write_lock_level)  in unlock_up()  argument
1375 			if (write_lock_level &&  in unlock_up()
1377 			    i <= *write_lock_level) {  in unlock_up()
1378 				*write_lock_level = i - 1;  in unlock_up()
1488 		       int *write_lock_level)  in setup_nodes_for_search()  argument
1496 		if (*write_lock_level < level + 1) {  in setup_nodes_for_search()
1497 			*write_lock_level = level + 1;  in setup_nodes_for_search()
1509 		if (*write_lock_level < level + 1) {  in setup_nodes_for_search()
1510 			*write_lock_level = level + 1;  in setup_nodes_for_search()
1567 							int write_lock_level)  in btrfs_search_slot_get_root()  argument
1618 	if (write_lock_level < BTRFS_MAX_LEVEL) {  in btrfs_search_slot_get_root()
1625 		if (level > write_lock_level)  in btrfs_search_slot_get_root()
1692 	int write_lock_level = 0;  in btrfs_search_slot()  local
1709 		write_lock_level = 2;  in btrfs_search_slot()
1715 		write_lock_level = 1;  in btrfs_search_slot()
1719 		write_lock_level = -1;  in btrfs_search_slot()
1722 		write_lock_level = BTRFS_MAX_LEVEL;  in btrfs_search_slot()
1724 	min_write_lock_level = write_lock_level;  in btrfs_search_slot()
1728 	b = btrfs_search_slot_get_root(root, p, write_lock_level);  in btrfs_search_slot()
1754 			if (level > write_lock_level ||  in btrfs_search_slot()
1755 			    (level + 1 > write_lock_level &&  in btrfs_search_slot()
1758 				write_lock_level = level + 1;  in btrfs_search_slot()
1840 				if (write_lock_level < 1) {  in btrfs_search_slot()
1841 					write_lock_level = 1;  in btrfs_search_slot()
1866 					     &write_lock_level);  in btrfs_search_slot()
1881 		if (slot == 0 && ins_len && write_lock_level < level + 1) {  in btrfs_search_slot()
1882 			write_lock_level = level + 1;  in btrfs_search_slot()
1888 			  &write_lock_level);  in btrfs_search_slot()
1906 			if (level <= write_lock_level) {  in btrfs_search_slot()