treescan
treescan(locname, dp->d_ino, todo);
void treescan(char *, ino_t, long (*)(char *, ino_t, int));
treescan(name, ino, addfile);
treescan(name, np->e_ino, deletefile);
treescan(".", UFS_ROOTINO, nodeupdates);
treescan(".", UFS_ROOTINO, nodeupdates);
treescan(".", UFS_ROOTINO, verifyfile);
treescan(name, ino, listfile);
treescan(name, ino, addfile);