DIRTY_NAT
if (NM_I(sbi)->nat_cnt[DIRTY_NAT] == 0 &&
si->dirty_nats = NM_I(sbi)->nat_cnt[DIRTY_NAT];
si->cache_mem += NM_I(sbi)->nat_cnt[DIRTY_NAT] *
nm_i->nat_cnt[DIRTY_NAT]++;
nm_i->nat_cnt[DIRTY_NAT]--;
if (!nm_i->nat_cnt[DIRTY_NAT])
nm_i->nat_cnt[DIRTY_NAT], NAT_JOURNAL))
return NM_I(sbi)->nat_cnt[DIRTY_NAT] >= NM_I(sbi)->max_nid *