};
struct tree_buffer *read_tree_block(struct ctree_root *root, u64 blocknr);
+struct tree_buffer *find_tree_block(struct ctree_root *root, u64 blocknr);
int write_tree_block(struct ctree_root *root, struct tree_buffer *buf);
-struct ctree_root *open_ctree(char *filename);
+struct ctree_root *open_ctree(char *filename, struct ctree_super_block *s);
int close_ctree(struct ctree_root *root);
void tree_block_release(struct ctree_root *root, struct tree_buffer *buf);
-struct tree_buffer *alloc_free_block(struct ctree_root *root);
-int update_root_block(struct ctree_root *root);
+int write_ctree_super(struct ctree_root *root, struct ctree_super_block *s);
int mkfs(int fd);
#define CTREE_SUPER_INFO_OFFSET(bs) (16 * (bs))