NFSD_NEEDAUTH
nfsd->nfsd_flag |= NFSD_NEEDAUTH;
((nfsd->nfsd_flag & NFSD_NEEDAUTH) != 0));
if (nfsd->nfsd_flag & NFSD_NEEDAUTH) {
nfsd->nfsd_flag &= ~NFSD_NEEDAUTH;