DRBD_A_DEVICE_STATISTICS_DEV_WRITE
nla = ntb[DRBD_A_DEVICE_STATISTICS_DEV_WRITE];
if (nla_put_u64_64bit(skb, DRBD_A_DEVICE_STATISTICS_DEV_WRITE, s->dev_write, 0))
[DRBD_A_DEVICE_STATISTICS_DEV_WRITE] = { .type = NLA_U64, },