There are some potential feefilter cleanups mentioned and motivated in comment https://github.com/bitcoin/bitcoin/pull/21509#issuecomment-805808485 . If you address the locking one, please be careful and make sure that `round()` is only called under a lock. See https://github.com/bitcoin/bitcoin/pull/21509#issuecomment-807992199

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MaybePunishNodeForTx(from_peer, state);
            }
            
            
            LogPrint(BCLog::MEMPOOL, "   removed orphan tx %s\n", orphanHash.ToString());
            if (state.GetResult() != TxValidationResult::TX_WITNESS_STRIPPED) {
                
                
                
                
                
                
                
                
                
                
                
                
                
                assert(recentRejects);
                recentRejects->insert(porphanTx->GetWitnessHash());