btrfs_should_fragment_free_space
if (btrfs_should_fragment_free_space(cache)) {
if (btrfs_should_fragment_free_space(block_group))
if (btrfs_should_fragment_free_space(block_group)) {
int btrfs_should_fragment_free_space(const struct btrfs_block_group *block_group);
if (btrfs_should_fragment_free_space(block_group))