i_suid
sip->i_suid = (ulong_t)sip->i_uid > (ulong_t)USHRT_MAX ?
ip->i_suid =
if (ip->i_suid != UID_LONG)
ip->i_uid = ip->i_suid;
if ((ip->i_suid != suid) || (ip->i_sgid != sgid)) {
ip->i_suid = suid;