DRBD_F_INVARIANT
__str_field(1, DRBD_F_REQUIRED | DRBD_F_INVARIANT, backing_dev, 128)
__str_field(2, DRBD_F_REQUIRED | DRBD_F_INVARIANT, meta_dev, 128)
__s32_field(3, DRBD_F_REQUIRED | DRBD_F_INVARIANT, meta_dev_idx)
__u64_field(4, DRBD_GENLA_F_MANDATORY | DRBD_F_INVARIANT, disk_size)
__u32_field(5, DRBD_GENLA_F_MANDATORY | DRBD_F_INVARIANT, max_bio_bvecs)
__flg_field(25, DRBD_GENLA_F_MANDATORY | DRBD_F_INVARIANT, discard_my_data)
__flg_field(28, DRBD_GENLA_F_MANDATORY | DRBD_F_INVARIANT, tentative)
if (exclude_invariants && !!((attr_flag) & DRBD_F_INVARIANT)) { \
} else if (exclude_invariants && !!((attr_flag) & DRBD_F_INVARIANT)) { \