extern void dir_free (struct dir *);
extern struct dir *dir_add(struct vol *, const struct dir *, struct path *, int);
extern int dir_modify(const struct vol *vol, struct dir *dir, cnid_t pdid, cnid_t did,
extern void dir_free (struct dir *);
extern struct dir *dir_add(struct vol *, const struct dir *, struct path *, int);
extern int dir_modify(const struct vol *vol, struct dir *dir, cnid_t pdid, cnid_t did,