MOUNTPROC_MNT
clnt_stat = clnt_call(client, MOUNTPROC_MNT, xdr_dirpath, &dir, xdr_fhstatus, fhp, tv);
error = call_mountd(fp, MOUNTPROC_MNT, got_nfs_fh, wchan);
(prog == MOUNTPROG && aproc == MOUNTPROC_MNT) ||