C++ (Cpp) __btrfs_cow_blockの例

コード例 #1

ファイル: mkfs.c プロジェクト: kreijack/btrfs-progs

static void __recow_root(struct btrfs_trans_handle *trans,
			 struct btrfs_root *root)
{
	int ret;
	struct extent_buffer *tmp;

	if (trans->transid != btrfs_root_generation(&root->root_item)) {
		ret = __btrfs_cow_block(trans, root, root->node,
					NULL, 0, &tmp, 0, 0);
		BUG_ON(ret);
		free_extent_buffer(tmp);
	}
}

コード例 #2

ファイル: mkfs.c プロジェクト: AK47POMA/btrfs-progs

static int recow_roots(struct btrfs_trans_handle *trans,
		       struct btrfs_root *root)
{
	int ret;
	struct extent_buffer *tmp;
	struct btrfs_fs_info *info = root->fs_info;

	ret = __btrfs_cow_block(trans, info->fs_root, info->fs_root->node,
				NULL, 0, &tmp, 0, 0);
	BUG_ON(ret);
	free_extent_buffer(tmp);

	ret = __btrfs_cow_block(trans, info->tree_root, info->tree_root->node,
				NULL, 0, &tmp, 0, 0);
	BUG_ON(ret);
	free_extent_buffer(tmp);

	ret = __btrfs_cow_block(trans, info->extent_root,
				info->extent_root->node, NULL, 0, &tmp, 0, 0);
	BUG_ON(ret);
	free_extent_buffer(tmp);

	ret = __btrfs_cow_block(trans, info->chunk_root, info->chunk_root->node,
				NULL, 0, &tmp, 0, 0);
	BUG_ON(ret);
	free_extent_buffer(tmp);


	ret = __btrfs_cow_block(trans, info->dev_root, info->dev_root->node,
				NULL, 0, &tmp, 0, 0);
	BUG_ON(ret);
	free_extent_buffer(tmp);

	ret = __btrfs_cow_block(trans, info->csum_root, info->csum_root->node,
				NULL, 0, &tmp, 0, 0);
	BUG_ON(ret);
	free_extent_buffer(tmp);

	return 0;
}