DRBD_A_DISK_CONF_AL_EXTENTS
if (nla_put_u32(skb, DRBD_A_DISK_CONF_AL_EXTENTS, s->al_extents))
[DRBD_A_DISK_CONF_AL_EXTENTS] = { .type = NLA_U32, },
nla = ntb[DRBD_A_DISK_CONF_AL_EXTENTS];