NDSCOMMIT
np->n_flag &= (NMODIFIED | NDSCOMMIT);
np->n_flag |= NDSCOMMIT;
np->n_flag &= ~NDSCOMMIT;
np->n_flag |= NDSCOMMIT;
np->n_flag &= ~NDSCOMMIT;
if (NFSHASPNFS(nmp) && (np->n_flag & NDSCOMMIT) != 0) {
np->n_flag &= ~NDSCOMMIT;