SF_SETTABLE
u_long ignored = DstRootPrivs ? 0 : SF_SETTABLE;
*ino_flags &= SF_SETTABLE;
ip->i_flags &= SF_SETTABLE;
if (vap->va_flags & SF_SETTABLE)
ip->i_flags &= SF_SETTABLE;
SF_APPEND) & SF_SETTABLE) /* root settable flags */