TMP_MUSTHAVE
tp = tmp_memalloc(sizeof (struct tmpnode), TMP_MUSTHAVE);
dot = tmp_memalloc(sizeof (struct tdirent) + 2, TMP_MUSTHAVE);
dotdot = tmp_memalloc(sizeof (struct tdirent) + 3, TMP_MUSTHAVE);
tm->tm_mntpath = tmp_memalloc(dpn.pn_pathlen + 1, TMP_MUSTHAVE);
tp = tmp_memalloc(sizeof (struct tmpnode), TMP_MUSTHAVE);
TMP_MUSTHAVE);