securelevel_ge
error = securelevel_ge(td->td_ucred, 2);
if (securelevel_ge(p->p_cred, 3) && (mode & FWRITE))
if (securelevel_ge(curthread->td_ucred, 3) && (mode & FWRITE))
error = securelevel_ge(sopt->sopt_td->td_ucred, 3);
error = securelevel_ge(sopt->sopt_td->td_ucred, 3);
int securelevel_ge(struct ucred *cr, int level);