GFS2_DIF_SYSTEM
if (GFS2_I(inode)->i_diskflags & GFS2_DIF_SYSTEM)
if (dip->i_diskflags & GFS2_DIF_SYSTEM)
ip->i_diskflags |= GFS2_DIF_SYSTEM;
if (ip->i_diskflags & GFS2_DIF_SYSTEM)