use triedb config for reference root (#1366)

cmd/evm/internal/t8ntool/execution.go

@@ -324,7 +324,7 @@ func (pre *Prestate) Apply(vmConfig vm.Config, chainConfig *params.ChainConfig,
 		statedb.AddBalance(pre.Env.Coinbase, uint256.MustFromBig(minerReward))
 	}
 	// Commit block
-	root, err := statedb.Commit(vmContext.BlockNumber.Uint64(), chainConfig.IsEIP158(vmContext.BlockNumber), false)
+	root, err := statedb.Commit(vmContext.BlockNumber.Uint64(), chainConfig.IsEIP158(vmContext.BlockNumber))
 	if err != nil {
 		return nil, nil, nil, NewError(ErrorEVM, fmt.Errorf("could not commit state: %v", err))
 	}
@@ -366,7 +366,7 @@ func MakePreState(db ethdb.Database, accounts types.GenesisAlloc) *state.StateDB
 		}
 	}
 	// Commit and re-open to start with a clean state.
-	root, _ := statedb.Commit(0, false, false)
+	root, _ := statedb.Commit(0, false)
 	statedb, _ = state.New(root, sdb, nil)
 	return statedb
 }

cmd/evm/runner.go

@@ -281,7 +281,7 @@ func runCmd(ctx *cli.Context) error {
 	output, leftOverGas, stats, err := timedExec(bench, execFunc)
 
 	if ctx.Bool(DumpFlag.Name) {
-		statedb.Commit(genesisConfig.Number, true, false)
+		statedb.Commit(genesisConfig.Number, true)
 		fmt.Println(string(statedb.Dump(nil)))
 	}
 

core/blockchain.go

@@ -196,10 +196,11 @@ type CacheConfig struct {
 // triedbConfig derives the configures for trie database.
 func (c *CacheConfig) triedbConfig() *triedb.Config {
 	config := &triedb.Config{Preimages: c.Preimages}
-	if c.StateScheme == rawdb.HashScheme {
+	if c.StateScheme == rawdb.HashScheme || c.StateScheme == "" {
 		config.HashDB = &hashdb.Config{
-			CleanCacheSize: c.TrieCleanLimit * 1024 * 1024,
-			StatsPrefix:    trieCleanCacheStatsNamespace,
+			CleanCacheSize:                  c.TrieCleanLimit * 1024 * 1024,
+			StatsPrefix:                     trieCleanCacheStatsNamespace,
+			ReferenceRootAtomicallyOnUpdate: true,
 		}
 	}
 	if c.StateScheme == rawdb.PathScheme {
@@ -1222,9 +1223,9 @@ func (bc *BlockChain) writeBlockWithState(block *types.Block, receipts []*types.
 	// diff layer for the block.
 	var err error
 	if bc.snaps == nil {
-		_, err = state.Commit(block.NumberU64(), bc.chainConfig.IsEIP158(block.Number()), true)
+		_, err = state.Commit(block.NumberU64(), bc.chainConfig.IsEIP158(block.Number()))
 	} else {
-		_, err = state.CommitWithSnap(block.NumberU64(), bc.chainConfig.IsEIP158(block.Number()), bc.snaps, block.Hash(), block.ParentHash(), true)
+		_, err = state.CommitWithSnap(block.NumberU64(), bc.chainConfig.IsEIP158(block.Number()), bc.snaps, block.Hash(), block.ParentHash())
 	}
 	if err != nil {
 		return err
@@ -1756,9 +1757,9 @@ func (bc *BlockChain) reprocessBlock(parent *types.Block, current *types.Block)
 	// If snapshots are enabled, call CommitWithSnaps to explicitly create a snapshot
 	// diff layer for the block.
 	if bc.snaps == nil {
-		return statedb.Commit(current.NumberU64(), bc.chainConfig.IsEIP158(current.Number()), false)
+		return statedb.Commit(current.NumberU64(), bc.chainConfig.IsEIP158(current.Number()))
 	}
-	return statedb.CommitWithSnap(current.NumberU64(), bc.chainConfig.IsEIP158(current.Number()), bc.snaps, current.Hash(), current.ParentHash(), false)
+	return statedb.CommitWithSnap(current.NumberU64(), bc.chainConfig.IsEIP158(current.Number()), bc.snaps, current.Hash(), current.ParentHash())
 }
 
 // initSnapshot instantiates a Snapshot instance and adds it to [bc]
@@ -1899,8 +1900,7 @@ func (bc *BlockChain) reprocessState(current *types.Block, reexec uint64) error
 		// Flatten snapshot if initialized, holding a reference to the state root until the next block
 		// is processed.
 		if err := bc.flattenSnapshot(func() error {
-			triedb.Reference(root, common.Hash{})
-			if previousRoot != (common.Hash{}) {
+			if previousRoot != (common.Hash{}) && previousRoot != root {
 				triedb.Dereference(previousRoot)
 			}
 			previousRoot = root

core/chain_makers.go

@@ -300,7 +300,7 @@ func GenerateChain(config *params.ChainConfig, parent *types.Block, engine conse
 		}
 
 		// Write state changes to db
-		root, err := statedb.Commit(b.header.Number.Uint64(), config.IsEIP158(b.header.Number), false)
+		root, err := statedb.Commit(b.header.Number.Uint64(), config.IsEIP158(b.header.Number))
 		if err != nil {
 			panic(fmt.Sprintf("state write error: %v", err))
 		}

core/genesis.go

@@ -328,7 +328,7 @@ func (g *Genesis) toBlock(db ethdb.Database, triedb *triedb.Database) *types.Blo
 		}
 	}
 
-	statedb.Commit(0, false, false)
+	statedb.Commit(0, false)
 	// Commit newly generated states into disk if it's not empty.
 	if root != types.EmptyRootHash {
 		if err := triedb.Commit(root, true); err != nil {

core/state/state_test.go

@@ -68,7 +68,7 @@ func TestDump(t *testing.T) {
 	// write some of them to the trie
 	s.state.updateStateObject(obj1)
 	s.state.updateStateObject(obj2)
-	root, _ := s.state.Commit(0, false, false)
+	root, _ := s.state.Commit(0, false)
 
 	// check that DumpToCollector contains the state objects that are in trie
 	s.state, _ = New(root, tdb, nil)
@@ -127,7 +127,7 @@ func TestIterativeDump(t *testing.T) {
 	// write some of them to the trie
 	s.state.updateStateObject(obj1)
 	s.state.updateStateObject(obj2)
-	root, _ := s.state.Commit(0, false, false)
+	root, _ := s.state.Commit(0, false)
 	s.state, _ = New(root, tdb, nil)
 
 	b := &bytes.Buffer{}
@@ -153,7 +153,7 @@ func TestNull(t *testing.T) {
 	var value common.Hash
 
 	s.state.SetState(address, common.Hash{}, value)
-	s.state.Commit(0, false, false)
+	s.state.Commit(0, false)
 
 	if value := s.state.GetState(address, common.Hash{}); value != (common.Hash{}) {
 		t.Errorf("expected empty current value, got %x", value)
@@ -225,7 +225,7 @@ func TestSnapshot2(t *testing.T) {
 	so0.deleted = false
 	state.setStateObject(so0)
 
-	root, _ := state.Commit(0, false, false)
+	root, _ := state.Commit(0, false)
 	state, _ = New(root, state.db, nil)
 
 	// and one with deleted == true

core/state/statedb.go

@@ -1217,14 +1217,14 @@ func (s *StateDB) handleDestruction(nodes *trienode.MergedNodeSet) (map[common.A
 }
 
 // Commit writes the state to the underlying in-memory trie database.
-func (s *StateDB) Commit(block uint64, deleteEmptyObjects bool, referenceRoot bool) (common.Hash, error) {
-	return s.commit(block, deleteEmptyObjects, nil, common.Hash{}, common.Hash{}, referenceRoot)
+func (s *StateDB) Commit(block uint64, deleteEmptyObjects bool) (common.Hash, error) {
+	return s.commit(block, deleteEmptyObjects, nil, common.Hash{}, common.Hash{})
 }
 
 // CommitWithSnap writes the state to the underlying in-memory trie database and
 // generates a snapshot layer for the newly committed state.
-func (s *StateDB) CommitWithSnap(block uint64, deleteEmptyObjects bool, snaps *snapshot.Tree, blockHash, parentHash common.Hash, referenceRoot bool) (common.Hash, error) {
-	return s.commit(block, deleteEmptyObjects, snaps, blockHash, parentHash, referenceRoot)
+func (s *StateDB) CommitWithSnap(block uint64, deleteEmptyObjects bool, snaps *snapshot.Tree, blockHash, parentHash common.Hash) (common.Hash, error) {
+	return s.commit(block, deleteEmptyObjects, snaps, blockHash, parentHash)
 }
 
 // Once the state is committed, tries cached in stateDB (including account
@@ -1234,7 +1234,7 @@ func (s *StateDB) CommitWithSnap(block uint64, deleteEmptyObjects bool, snaps *s
 //
 // The associated block number of the state transition is also provided
 // for more chain context.
-func (s *StateDB) commit(block uint64, deleteEmptyObjects bool, snaps *snapshot.Tree, blockHash, parentHash common.Hash, referenceRoot bool) (common.Hash, error) {
+func (s *StateDB) commit(block uint64, deleteEmptyObjects bool, snaps *snapshot.Tree, blockHash, parentHash common.Hash) (common.Hash, error) {
 	// Short circuit in case any database failure occurred earlier.
 	if s.dbErr != nil {
 		return common.Hash{}, fmt.Errorf("commit aborted due to earlier error: %v", s.dbErr)
@@ -1343,14 +1343,8 @@ func (s *StateDB) commit(block uint64, deleteEmptyObjects bool, snaps *snapshot.
 	if root != origin {
 		start := time.Now()
 		set := triestate.New(s.accountsOrigin, s.storagesOrigin, incomplete)
-		if referenceRoot {
-			if err := s.db.TrieDB().UpdateAndReferenceRoot(root, origin, block, nodes, set); err != nil {
-				return common.Hash{}, err
-			}
-		} else {
-			if err := s.db.TrieDB().Update(root, origin, block, nodes, set); err != nil {
-				return common.Hash{}, err
-			}
+		if err := s.db.TrieDB().Update(root, origin, block, nodes, set); err != nil {
+			return common.Hash{}, err
 		}
 		s.originalRoot = root
 		if metrics.EnabledExpensive {

core/state/statedb_fuzz_test.go

@@ -233,7 +233,7 @@ func (test *stateTest) run() bool {
 		} else {
 			state.IntermediateRoot(true) // call intermediateRoot at the transaction boundary
 		}
-		nroot, err := state.Commit(0, true, false) // call commit at the block boundary
+		nroot, err := state.Commit(0, true) // call commit at the block boundary
 		if err != nil {
 			panic(err)
 		}

core/state/statedb_test.go

@@ -126,15 +126,15 @@ func TestIntermediateLeaks(t *testing.T) {
 	}
 
 	// Commit and cross check the databases.
-	transRoot, err := transState.Commit(0, false, false)
+	transRoot, err := transState.Commit(0, false)
 	if err != nil {
 		t.Fatalf("failed to commit transition state: %v", err)
 	}
 	if err = transNdb.Commit(transRoot, false); err != nil {
 		t.Errorf("can not commit trie %v to persistent database", transRoot.Hex())
 	}
 
-	finalRoot, err := finalState.Commit(0, false, false)
+	finalRoot, err := finalState.Commit(0, false)
 	if err != nil {
 		t.Fatalf("failed to commit final state: %v", err)
 	}
@@ -542,7 +542,7 @@ func (test *snapshotTest) checkEqual(state, checkstate *StateDB) error {
 func TestTouchDelete(t *testing.T) {
 	s := newStateEnv()
 	s.state.getOrNewStateObject(common.Address{})
-	root, _ := s.state.Commit(0, false, false)
+	root, _ := s.state.Commit(0, false)
 	s.state, _ = NewWithSnapshot(root, s.state.db, s.state.snap)
 
 	snapshot := s.state.Snapshot()
@@ -630,7 +630,7 @@ func TestCopyCommitCopy(t *testing.T) {
 		t.Fatalf("second copy committed storage slot mismatch: have %x, want %x", val, sval)
 	}
 	// Commit state, ensure states can be loaded from disk
-	root, _ := state.Commit(0, false, false)
+	root, _ := state.Commit(0, false)
 	state, _ = New(root, tdb, nil)
 	if balance := state.GetBalance(addr); balance.Cmp(uint256.NewInt(42)) != 0 {
 		t.Fatalf("state post-commit balance mismatch: have %v, want %v", balance, 42)
@@ -744,7 +744,7 @@ func TestCommitCopy(t *testing.T) {
 		t.Fatalf("initial committed storage slot mismatch: have %x, want %x", val, common.Hash{})
 	}
 	// Copy the committed state database, the copied one is not functional.
-	state.Commit(0, true, false)
+	state.Commit(0, true)
 	copied := state.Copy()
 	if balance := copied.GetBalance(addr); balance.Cmp(uint256.NewInt(0)) != 0 {
 		t.Fatalf("unexpected balance: have %v", balance)
@@ -778,7 +778,7 @@ func TestDeleteCreateRevert(t *testing.T) {
 	addr := common.BytesToAddress([]byte("so"))
 	state.SetBalance(addr, uint256.NewInt(1))
 
-	root, _ := state.Commit(0, false, false)
+	root, _ := state.Commit(0, false)
 	state, _ = NewWithSnapshot(root, state.db, state.snap)
 
 	// Simulate self-destructing in one transaction, then create-reverting in another
@@ -790,7 +790,7 @@ func TestDeleteCreateRevert(t *testing.T) {
 	state.RevertToSnapshot(id)
 
 	// Commit the entire state and make sure we don't crash and have the correct state
-	root, _ = state.Commit(0, true, false)
+	root, _ = state.Commit(0, true)
 	state, _ = NewWithSnapshot(root, state.db, state.snap)
 
 	if state.getStateObject(addr) != nil {
@@ -833,7 +833,7 @@ func testMissingTrieNodes(t *testing.T, scheme string) {
 		a2 := common.BytesToAddress([]byte("another"))
 		state.SetBalance(a2, uint256.NewInt(100))
 		state.SetCode(a2, []byte{1, 2, 4})
-		root, _ = state.Commit(0, false, false)
+		root, _ = state.Commit(0, false)
 		t.Logf("root: %x", root)
 		// force-flush
 		tdb.Commit(root, false)
@@ -857,7 +857,7 @@ func testMissingTrieNodes(t *testing.T, scheme string) {
 	}
 	// Modify the state
 	state.SetBalance(addr, uint256.NewInt(2))
-	root, err := state.Commit(0, false, false)
+	root, err := state.Commit(0, false)
 	if err == nil {
 		t.Fatalf("expected error, got root :%x", root)
 	}
@@ -1053,7 +1053,7 @@ func TestFlushOrderDataLoss(t *testing.T) {
 			state.SetState(common.Address{a}, common.Hash{a, s}, common.Hash{a, s})
 		}
 	}
-	root, err := state.Commit(0, false, false)
+	root, err := state.Commit(0, false)
 	if err != nil {
 		t.Fatalf("failed to commit state trie: %v", err)
 	}
@@ -1132,7 +1132,7 @@ func TestResetObject(t *testing.T) {
 	state.CreateAccount(addr)
 	state.SetBalance(addr, uint256.NewInt(2))
 	state.SetState(addr, slotB, common.BytesToHash([]byte{0x2}))
-	root, _ := state.CommitWithSnap(0, true, snaps, common.Hash{}, common.Hash{}, false)
+	root, _ := state.CommitWithSnap(0, true, snaps, common.Hash{}, common.Hash{})
 
 	// Ensure the original account is wiped properly
 	snap := snaps.Snapshot(root)
@@ -1163,7 +1163,7 @@ func TestDeleteStorage(t *testing.T) {
 		value := common.Hash(uint256.NewInt(uint64(10 * i)).Bytes32())
 		state.SetState(addr, slot, value)
 	}
-	root, _ := state.CommitWithSnap(0, true, snaps, common.Hash{}, common.Hash{}, false)
+	root, _ := state.CommitWithSnap(0, true, snaps, common.Hash{}, common.Hash{})
 	// Init phase done, create two states, one with snap and one without
 	fastState, _ := New(root, db, snaps)
 	slowState, _ := New(root, db, nil)

core/txpool/blobpool/blobpool_test.go

@@ -583,7 +583,7 @@ func TestOpenDrops(t *testing.T) {
 	statedb.AddBalance(crypto.PubkeyToAddress(overcapper.PublicKey), uint256.NewInt(10000000))
 	statedb.AddBalance(crypto.PubkeyToAddress(duplicater.PublicKey), uint256.NewInt(1000000))
 	statedb.AddBalance(crypto.PubkeyToAddress(repeater.PublicKey), uint256.NewInt(1000000))
-	statedb.Commit(0, true, false)
+	statedb.Commit(0, true)
 
 	chain := &testBlockChain{
 		config:  testChainConfig,
@@ -702,7 +702,7 @@ func TestOpenIndex(t *testing.T) {
 	// Create a blob pool out of the pre-seeded data
 	statedb, _ := state.New(types.EmptyRootHash, state.NewDatabase(rawdb.NewDatabase(memorydb.New())), nil)
 	statedb.AddBalance(addr, uint256.NewInt(1_000_000_000))
-	statedb.Commit(0, true, false)
+	statedb.Commit(0, true)
 
 	chain := &testBlockChain{
 		config:  testChainConfig,
@@ -804,7 +804,7 @@ func TestOpenHeap(t *testing.T) {
 	statedb.AddBalance(addr1, uint256.NewInt(1_000_000_000))
 	statedb.AddBalance(addr2, uint256.NewInt(1_000_000_000))
 	statedb.AddBalance(addr3, uint256.NewInt(1_000_000_000))
-	statedb.Commit(0, true, false)
+	statedb.Commit(0, true)
 
 	chain := &testBlockChain{
 		config:  testChainConfig,
@@ -884,7 +884,7 @@ func TestOpenCap(t *testing.T) {
 		statedb.AddBalance(addr1, uint256.NewInt(1_000_000_000))
 		statedb.AddBalance(addr2, uint256.NewInt(1_000_000_000))
 		statedb.AddBalance(addr3, uint256.NewInt(1_000_000_000))
-		statedb.Commit(0, true, false)
+		statedb.Commit(0, true)
 
 		chain := &testBlockChain{
 			config:  testChainConfig,
@@ -1302,7 +1302,7 @@ func TestAdd(t *testing.T) {
 				store.Put(blob)
 			}
 		}
-		statedb.Commit(0, true, false)
+		statedb.Commit(0, true)
 		store.Close()
 
 		// Create a blob pool out of the pre-seeded dats
@@ -1375,7 +1375,7 @@ func benchmarkPoolPending(b *testing.B, datacap uint64) {
 		statedb.AddBalance(addr, uint256.NewInt(1_000_000_000))
 		pool.add(tx)
 	}
-	statedb.Commit(0, true, false)
+	statedb.Commit(0, true)
 	defer pool.Close()
 
 	// Benchmark assembling the pending

eth/api_debug_test.go

@@ -93,7 +93,7 @@ func TestAccountRange(t *testing.T) {
 			m[addr] = true
 		}
 	}
-	root, _ := sdb.Commit(0, true, false)
+	root, _ := sdb.Commit(0, true)
 	sdb, _ = state.New(root, statedb, nil)
 
 	trie, err := statedb.OpenTrie(root)
@@ -151,7 +151,7 @@ func TestEmptyAccountRange(t *testing.T) {
 		st, _   = state.New(types.EmptyRootHash, statedb, nil)
 	)
 	// Commit(although nothing to flush) and re-init the statedb
-	st.Commit(0, true, false)
+	st.Commit(0, true)
 	st, _ = state.New(types.EmptyRootHash, statedb, nil)
 
 	results := st.RawDump(&state.DumpConfig{
@@ -192,7 +192,7 @@ func TestStorageRangeAt(t *testing.T) {
 	for _, entry := range storage {
 		sdb.SetState(addr, *entry.Key, entry.Value)
 	}
-	root, _ := sdb.Commit(0, false, false)
+	root, _ := sdb.Commit(0, false)
 	sdb, _ = state.New(root, db, nil)
 
 	// Check a few combinations of limit and start/end.

eth/state_accessor.go

@@ -163,7 +163,7 @@ func (eth *Ethereum) hashState(ctx context.Context, block *types.Block, reexec u
 			return nil, nil, fmt.Errorf("processing block %d failed: %v", current.NumberU64(), err)
 		}
 		// Finalize the state so any modifications are written to the trie
-		root, err := statedb.Commit(current.NumberU64(), eth.blockchain.Config().IsEIP158(current.Number()), true)
+		root, err := statedb.Commit(current.NumberU64(), eth.blockchain.Config().IsEIP158(current.Number()))
 		if err != nil {
 			return nil, nil, fmt.Errorf("stateAtBlock commit failed, number %d root %v: %w",
 				current.NumberU64(), current.Root().Hex(), err)
@@ -172,8 +172,9 @@ func (eth *Ethereum) hashState(ctx context.Context, block *types.Block, reexec u
 		if err != nil {
 			return nil, nil, fmt.Errorf("state reset after block %d failed: %v", current.NumberU64(), err)
 		}
-		// Note: In subnet-evm, the state reference is held by passing true to [statedb.Commit].
-		// Drop the parent state to prevent accumulating too many nodes in memory.
+		// Hold the state reference and also drop the parent state
+		// to prevent accumulating too many nodes in memory.
+		tdb.Reference(root, common.Hash{})
 		if parent != (common.Hash{}) {
 			tdb.Dereference(parent)
 		}