nlm_do_unlock
void nlm_do_unlock(nlm4_unlockargs *, nlm4_res *,
nlm_do_unlock(&args4, &res4, sr, NULL);
nlm_do_unlock(&args4, &res4, sr,
nlm_do_unlock(argp, resp, sr, NULL);
nlm_do_unlock(argp, &res4, sr,