HAMMER2_LIMIT_DIRTY_CHAINS
if (hammer2_limit_dirty_chains > HAMMER2_LIMIT_DIRTY_CHAINS)
hammer2_limit_dirty_chains = HAMMER2_LIMIT_DIRTY_CHAINS;
if (hammer2_limit_dirty_chains > HAMMER2_LIMIT_DIRTY_CHAINS)
hammer2_limit_dirty_chains = HAMMER2_LIMIT_DIRTY_CHAINS;