newest_index     1794 fs/btrfs/disk-io.c 	int newest_index = -1;
newest_index     1802 fs/btrfs/disk-io.c 			newest_index = i;
newest_index     1806 fs/btrfs/disk-io.c 	if (newest_index == BTRFS_NUM_BACKUP_ROOTS - 1) {
newest_index     1810 fs/btrfs/disk-io.c 			newest_index = 0;
newest_index     1812 fs/btrfs/disk-io.c 	return newest_index;
newest_index     1824 fs/btrfs/disk-io.c 	int newest_index = -1;
newest_index     1826 fs/btrfs/disk-io.c 	newest_index = find_newest_super_backup(info, newest_gen);
newest_index     1828 fs/btrfs/disk-io.c 	if (newest_index == -1) {
newest_index     1831 fs/btrfs/disk-io.c 		info->backup_root_index = (newest_index + 1) % BTRFS_NUM_BACKUP_ROOTS;