backup_root_index  866 fs/btrfs/ctree.h 	int backup_root_index;
backup_root_index 1829 fs/btrfs/disk-io.c 		info->backup_root_index = 0;
backup_root_index 1831 fs/btrfs/disk-io.c 		info->backup_root_index = (newest_index + 1) % BTRFS_NUM_BACKUP_ROOTS;
backup_root_index 1846 fs/btrfs/disk-io.c 	next_backup = info->backup_root_index;
backup_root_index 1867 fs/btrfs/disk-io.c 	info->backup_root_index = (next_backup + 1) % BTRFS_NUM_BACKUP_ROOTS;