C++ (Cpp) btrfs_insert_inode Examples

Example #1

File: utils.c Project: galois17/partclone

int btrfs_make_root_dir(struct btrfs_trans_handle *trans,
			struct btrfs_root *root, u64 objectid)
{
	int ret;
	struct btrfs_inode_item inode_item;

	memset(&inode_item, 0, sizeof(inode_item));
	btrfs_set_stack_inode_generation(&inode_item, trans->transid);
	btrfs_set_stack_inode_size(&inode_item, 0);
	btrfs_set_stack_inode_nlink(&inode_item, 1);
	btrfs_set_stack_inode_nbytes(&inode_item, root->leafsize);
	btrfs_set_stack_inode_mode(&inode_item, S_IFDIR | 0555);

	if (root->fs_info->tree_root == root)
		btrfs_set_super_root_dir(&root->fs_info->super_copy, objectid);

	ret = btrfs_insert_inode(trans, root, objectid, &inode_item);
	if (ret)
		goto error;

	ret = btrfs_insert_inode_ref(trans, root, "..", 2, objectid, objectid, 0);
	if (ret)
		goto error;

	btrfs_set_root_dirid(&root->root_item, objectid);
	ret = 0;
error:
	return ret;
}

Example #2

File: inode.c Project: goldwynr/btrfs-progs

/*
 * Unlike kernel btrfs_new_inode(), we only create the INODE_ITEM, without
 * its backref.
 * The backref is added by btrfs_add_link().
 */
int btrfs_new_inode(struct btrfs_trans_handle *trans, struct btrfs_root *root,
		u64 ino, u32 mode)
{
	struct btrfs_inode_item inode_item = {0};
	int ret = 0;

	fill_inode_item(trans, &inode_item, mode, 0);
	ret = btrfs_insert_inode(trans, root, ino, &inode_item);
	return ret;
}

Example #3

File: mkfs.c Project: kreijack/btrfs-progs

static int add_inode_items(struct btrfs_trans_handle *trans,
			   struct btrfs_root *root,
			   struct stat *st, char *name,
			   u64 self_objectid, ino_t parent_inum,
			   int dir_index_cnt, struct btrfs_inode_item *inode_ret)
{
	int ret;
	struct btrfs_key inode_key;
	struct btrfs_inode_item btrfs_inode;
	u64 objectid;
	u64 inode_size = 0;
	int name_len;

	name_len = strlen(name);
	fill_inode_item(trans, root, &btrfs_inode, st);
	objectid = self_objectid;

	if (S_ISDIR(st->st_mode)) {
		inode_size = calculate_dir_inode_size(name);
		btrfs_set_stack_inode_size(&btrfs_inode, inode_size);
	}

	inode_key.objectid = objectid;
	inode_key.offset = 0;
	btrfs_set_key_type(&inode_key, BTRFS_INODE_ITEM_KEY);

	ret = btrfs_insert_inode(trans, root, objectid, &btrfs_inode);
	if (ret)
		goto fail;

	ret = btrfs_insert_inode_ref(trans, root, name, name_len,
				     objectid, parent_inum, dir_index_cnt);
	if (ret)
		goto fail;

	*inode_ret = btrfs_inode;
fail:
	return ret;
}