btrfs_add_chunk_map
ret = btrfs_add_chunk_map(fs_info, map);
ret = btrfs_add_chunk_map(info, map);
ret = btrfs_add_chunk_map(fs_info, map);
int btrfs_add_chunk_map(struct btrfs_fs_info *fs_info, struct btrfs_chunk_map *map);