HFS_SB_ATTRIB_INCNSTNT
attrib |= cpu_to_be16(HFS_SB_ATTRIB_INCNSTNT);
HFS_SB(sb)->alt_mdb->drAtrb &= cpu_to_be16(~HFS_SB_ATTRIB_INCNSTNT);
HFS_SB(sb)->mdb->drAtrb &= cpu_to_be16(~HFS_SB_ATTRIB_INCNSTNT);