1957 	int backup_index = find_newest_super_backup(fs_info);  in read_backup_root()  local
1961 	if (priority < BTRFS_NUM_BACKUP_ROOTS && backup_index >= 0) {  in read_backup_root()
1963 			return backup_index;  in read_backup_root()
1965 		backup_index = backup_index + BTRFS_NUM_BACKUP_ROOTS - priority;  in read_backup_root()
1966 		backup_index %= BTRFS_NUM_BACKUP_ROOTS;  in read_backup_root()
1971 	root_backup = super->super_roots + backup_index;  in read_backup_root()
1987 	return backup_index;  in read_backup_root()
2619 	int backup_index = find_newest_super_backup(fs_info);  in init_tree_roots()  local
2650 			backup_index = ret;  in init_tree_roots()
2700 		if (backup_index < 0) {  in init_tree_roots()
2703 			fs_info->backup_root_index = backup_index + 1;  in init_tree_roots()