tornadocontrib/go-ethereum
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

trie, core/state: revert error removal in (*state.Trie).Commit (#27544)

Browse Source 
* trie, core/state: revert error removal in (*state.Trie).Commit

* Gary's nitpick :)

Co-Authored-By:  rjl493456442 <garyrong0905@gmail.com>

---------

Co-authored-by: rjl493456442 <garyrong0905@gmail.com>
This commit is contained in:
Guillaume Ballet 2023-06-27 14:36:38 +02:00 committed by GitHub
parent d73eb87979
commit c7b099b2ea
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
17 changed files with 78 additions and 59 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
core/state/database.go
View File

@ -114,7 +114,7 @@ type Trie interface {
// The returned nodeset can be nil if the trie is clean(nothing to commit).
// Once the trie is committed, it's not usable anymore. A new trie must
// be created with new root and updated trie database for following usage
Commit(collectLeaf bool) (common.Hash, *trienode.NodeSet)
Commit(collectLeaf bool) (common.Hash, *trienode.NodeSet, error)
// NodeIterator returns an iterator that returns nodes of the trie. Iteration
// starts at the key after the given start key. And error will be returned

5
core/state/snapshot/generate.go
View File

@ -361,7 +361,10 @@ func (dl *diskLayer) generateRange(ctx *generatorContext, trieId *trie.ID, prefi
for i, key := range result.keys {
snapTrie.Update(key, result.vals[i])
}
root, nodes := snapTrie.Commit(false)
root, nodes, err := snapTrie.Commit(false)
if err != nil {
return false, nil, err
}
if nodes != nil {
tdb.Update(root, types.EmptyRootHash, trienode.NewWithNodeSet(nodes))
tdb.Commit(root, false)

4
core/state/snapshot/generate_test.go
View File

@ -191,7 +191,7 @@ func (t *testHelper) makeStorageTrie(owner common.Hash, keys []string, vals []st
if !commit {
return stTrie.Hash()
}
root, nodes := stTrie.Commit(false)
root, nodes, _ := stTrie.Commit(false)
if nodes != nil {
t.nodes.Merge(nodes)
}
@ -199,7 +199,7 @@ func (t *testHelper) makeStorageTrie(owner common.Hash, keys []string, vals []st
}
func (t *testHelper) Commit() common.Hash {
root, nodes := t.accTrie.Commit(true)
root, nodes, _ := t.accTrie.Commit(true)
if nodes != nil {
t.nodes.Merge(nodes)
}

5
core/state/state_object.go
View File

@ -366,7 +366,10 @@ func (s *stateObject) commitTrie(db Database) (*trienode.NodeSet, error) {
if metrics.EnabledExpensive {
defer func(start time.Time) { s.db.StorageCommits += time.Since(start) }(time.Now())
}
root, nodes := tr.Commit(false)
root, nodes, err := tr.Commit(false)
if err != nil {
return nil, err
}
s.data.Root = root
return nodes, nil
}

5
core/state/statedb.go
View File

@ -1051,7 +1051,10 @@ func (s *StateDB) Commit(deleteEmptyObjects bool) (common.Hash, error) {
if metrics.EnabledExpensive {
start = time.Now()
}
root, set := s.trie.Commit(true)
root, set, err := s.trie.Commit(true)
if err != nil {
return common.Hash{}, err
}
// Merge the dirty nodes of account trie into global set
if set != nil {
if err := nodes.Merge(set); err != nil {

12
eth/protocols/snap/sync_test.go
View File

@ -1386,7 +1386,7 @@ func makeAccountTrieNoStorage(n int) (string, *trie.Trie, []*kv) {
// Commit the state changes into db and re-create the trie
// for accessing later.
root, nodes := accTrie.Commit(false)
root, nodes, _ := accTrie.Commit(false)
db.Update(root, types.EmptyRootHash, trienode.NewWithNodeSet(nodes))
accTrie, _ = trie.New(trie.StateTrieID(root), db)
@ -1448,7 +1448,7 @@ func makeBoundaryAccountTrie(n int) (string, *trie.Trie, []*kv) {
// Commit the state changes into db and re-create the trie
// for accessing later.
root, nodes := accTrie.Commit(false)
root, nodes, _ := accTrie.Commit(false)
db.Update(root, types.EmptyRootHash, trienode.NewWithNodeSet(nodes))
accTrie, _ = trie.New(trie.StateTrieID(root), db)
@ -1494,7 +1494,7 @@ func makeAccountTrieWithStorageWithUniqueStorage(accounts, slots int, code bool)
slices.SortFunc(entries, (*kv).less)
// Commit account trie
root, set := accTrie.Commit(true)
root, set, _ := accTrie.Commit(true)
nodes.Merge(set)
// Commit gathered dirty nodes into database
@ -1559,7 +1559,7 @@ func makeAccountTrieWithStorage(accounts, slots int, code, boundary bool) (strin
slices.SortFunc(entries, (*kv).less)
// Commit account trie
root, set := accTrie.Commit(true)
root, set, _ := accTrie.Commit(true)
nodes.Merge(set)
// Commit gathered dirty nodes into database
@ -1601,7 +1601,7 @@ func makeStorageTrieWithSeed(owner common.Hash, n, seed uint64, db *trie.Databas
entries = append(entries, elem)
}
slices.SortFunc(entries, (*kv).less)
root, nodes := trie.Commit(false)
root, nodes, _ := trie.Commit(false)
return root, nodes, entries
}
@ -1652,7 +1652,7 @@ func makeBoundaryStorageTrie(owner common.Hash, n int, db *trie.Database) (commo
entries = append(entries, elem)
}
slices.SortFunc(entries, (*kv).less)
root, nodes := trie.Commit(false)
root, nodes, _ := trie.Commit(false)
return root, nodes, entries
}

12
light/postprocess.go
View File

@ -214,7 +214,10 @@ func (c *ChtIndexerBackend) Process(ctx context.Context, header *types.Header) e
// Commit implements core.ChainIndexerBackend
func (c *ChtIndexerBackend) Commit() error {
root, nodes := c.trie.Commit(false)
root, nodes, err := c.trie.Commit(false)
if err != nil {
return err
}
// Commit trie changes into trie database in case it's not nil.
if nodes != nil {
if err := c.triedb.Update(root, c.originRoot, trienode.NewWithNodeSet(nodes)); err != nil {
@ -225,7 +228,6 @@ func (c *ChtIndexerBackend) Commit() error {
}
}
// Re-create trie with newly generated root and updated database.
var err error
c.trie, err = trie.New(trie.TrieID(root), c.triedb)
if err != nil {
return err
@ -465,7 +467,10 @@ func (b *BloomTrieIndexerBackend) Commit() error {
return terr
}
}
root, nodes := b.trie.Commit(false)
root, nodes, err := b.trie.Commit(false)
if err != nil {
return err
}
// Commit trie changes into trie database in case it's not nil.
if nodes != nil {
if err := b.triedb.Update(root, b.originRoot, trienode.NewWithNodeSet(nodes)); err != nil {
@ -476,7 +481,6 @@ func (b *BloomTrieIndexerBackend) Commit() error {
}
}
// Re-create trie with newly generated root and updated database.
var err error
b.trie, err = trie.New(trie.TrieID(root), b.triedb)
if err != nil {
return err

4
light/trie.go
View File

@ -174,9 +174,9 @@ func (t *odrTrie) DeleteAccount(address common.Address) error {
})
}
func (t *odrTrie) Commit(collectLeaf bool) (common.Hash, *trienode.NodeSet) {
func (t *odrTrie) Commit(collectLeaf bool) (common.Hash, *trienode.NodeSet, error) {
if t.trie == nil {
return t.id.Root, nil
return t.id.Root, nil, nil
}
return t.trie.Commit(collectLeaf)
}

5
tests/fuzzers/stacktrie/trie_fuzzer.go
View File

@ -171,7 +171,10 @@ func (f *fuzzer) fuzz() int {
return 0
}
// Flush trie -> database
rootA, nodes := trieA.Commit(false)
rootA, nodes, err := trieA.Commit(false)
if err != nil {
panic(err)
}
if nodes != nil {
dbA.Update(rootA, types.EmptyRootHash, trienode.NewWithNodeSet(nodes))
}

5
tests/fuzzers/trie/trie-fuzzer.go
View File

@ -165,7 +165,10 @@ func runRandTest(rt randTest) error {
case opHash:
tr.Hash()
case opCommit:
hash, nodes := tr.Commit(false)
hash, nodes, err := tr.Commit(false)
if err != nil {
return err
}
if nodes != nil {
if err := triedb.Update(hash, origin, trienode.NewWithNodeSet(nodes)); err != nil {
return err

18
trie/iterator_test.go
View File

@ -62,7 +62,7 @@ func TestIterator(t *testing.T) {
all[val.k] = val.v
trie.MustUpdate([]byte(val.k), []byte(val.v))
}
root, nodes := trie.Commit(false)
root, nodes, _ := trie.Commit(false)
db.Update(root, types.EmptyRootHash, trienode.NewWithNodeSet(nodes))
trie, _ = New(TrieID(root), db)
@ -254,7 +254,7 @@ func TestDifferenceIterator(t *testing.T) {
for _, val := range testdata1 {
triea.MustUpdate([]byte(val.k), []byte(val.v))
}
rootA, nodesA := triea.Commit(false)
rootA, nodesA, _ := triea.Commit(false)
dba.Update(rootA, types.EmptyRootHash, trienode.NewWithNodeSet(nodesA))
triea, _ = New(TrieID(rootA), dba)
@ -263,7 +263,7 @@ func TestDifferenceIterator(t *testing.T) {
for _, val := range testdata2 {
trieb.MustUpdate([]byte(val.k), []byte(val.v))
}
rootB, nodesB := trieb.Commit(false)
rootB, nodesB, _ := trieb.Commit(false)
dbb.Update(rootB, types.EmptyRootHash, trienode.NewWithNodeSet(nodesB))
trieb, _ = New(TrieID(rootB), dbb)
@ -296,7 +296,7 @@ func TestUnionIterator(t *testing.T) {
for _, val := range testdata1 {
triea.MustUpdate([]byte(val.k), []byte(val.v))
}
rootA, nodesA := triea.Commit(false)
rootA, nodesA, _ := triea.Commit(false)
dba.Update(rootA, types.EmptyRootHash, trienode.NewWithNodeSet(nodesA))
triea, _ = New(TrieID(rootA), dba)
@ -305,7 +305,7 @@ func TestUnionIterator(t *testing.T) {
for _, val := range testdata2 {
trieb.MustUpdate([]byte(val.k), []byte(val.v))
}
rootB, nodesB := trieb.Commit(false)
rootB, nodesB, _ := trieb.Commit(false)
dbb.Update(rootB, types.EmptyRootHash, trienode.NewWithNodeSet(nodesB))
trieb, _ = New(TrieID(rootB), dbb)
@ -367,7 +367,7 @@ func testIteratorContinueAfterError(t *testing.T, memonly bool, scheme string) {
for _, val := range testdata1 {
tr.MustUpdate([]byte(val.k), []byte(val.v))
}
root, nodes := tr.Commit(false)
root, nodes, _ := tr.Commit(false)
tdb.Update(root, types.EmptyRootHash, trienode.NewWithNodeSet(nodes))
if !memonly {
tdb.Commit(root, false)
@ -477,7 +477,7 @@ func testIteratorContinueAfterSeekError(t *testing.T, memonly bool, scheme strin
for _, val := range testdata1 {
ctr.MustUpdate([]byte(val.k), []byte(val.v))
}
root, nodes := ctr.Commit(false)
root, nodes, _ := ctr.Commit(false)
for path, n := range nodes.Nodes {
if n.Hash == barNodeHash {
barNodePath = []byte(path)
@ -604,7 +604,7 @@ func makeLargeTestTrie() (*Database, *StateTrie, *loggingDb) {
val = crypto.Keccak256(val)
trie.MustUpdate(key, val)
}
root, nodes := trie.Commit(false)
root, nodes, _ := trie.Commit(false)
triedb.Update(root, types.EmptyRootHash, trienode.NewWithNodeSet(nodes))
triedb.Commit(root, false)
@ -647,7 +647,7 @@ func testIteratorNodeBlob(t *testing.T, scheme string) {
all[val.k] = val.v
trie.MustUpdate([]byte(val.k), []byte(val.v))
}
root, nodes := trie.Commit(false)
root, nodes, _ := trie.Commit(false)
triedb.Update(root, types.EmptyRootHash, trienode.NewWithNodeSet(nodes))
triedb.Commit(root, false)

2
trie/secure_trie.go
View File

@ -223,7 +223,7 @@ func (t *StateTrie) GetKey(shaKey []byte) []byte {
// All cached preimages will be also flushed if preimages recording is enabled.
// Once the trie is committed, it's not usable anymore. A new trie must
// be created with new root and updated trie database for following usage
func (t *StateTrie) Commit(collectLeaf bool) (common.Hash, *trienode.NodeSet) {
func (t *StateTrie) Commit(collectLeaf bool) (common.Hash, *trienode.NodeSet, error) {
// Write all the pre-images to the actual disk database
if len(t.getSecKeyCache()) > 0 {
if t.preimages != nil {

2
trie/secure_trie_test.go
View File

@ -60,7 +60,7 @@ func makeTestStateTrie() (*Database, *StateTrie, map[string][]byte) {
trie.MustUpdate(key, val)
}
}
root, nodes := trie.Commit(false)
root, nodes, _ := trie.Commit(false)
if err := triedb.Update(root, types.EmptyRootHash, trienode.NewWithNodeSet(nodes)); err != nil {
panic(fmt.Errorf("failed to commit db %v", err))
}

6
trie/sync_test.go
View File

@ -56,7 +56,7 @@ func makeTestTrie(scheme string) (ethdb.Database, *Database, *StateTrie, map[str
trie.MustUpdate(key, val)
}
}
root, nodes := trie.Commit(false)
root, nodes, _ := trie.Commit(false)
if err := triedb.Update(root, types.EmptyRootHash, trienode.NewWithNodeSet(nodes)); err != nil {
panic(fmt.Errorf("failed to commit db %v", err))
}
@ -739,7 +739,7 @@ func testSyncMovingTarget(t *testing.T, scheme string) {
srcTrie.MustUpdate(key, val)
diff[string(key)] = val
}
root, nodes := srcTrie.Commit(false)
root, nodes, _ := srcTrie.Commit(false)
if err := srcDb.Update(root, preRoot, trienode.NewWithNodeSet(nodes)); err != nil {
panic(err)
}
@ -764,7 +764,7 @@ func testSyncMovingTarget(t *testing.T, scheme string) {
srcTrie.MustUpdate([]byte(k), val)
reverted[k] = val
}
root, nodes = srcTrie.Commit(false)
root, nodes, _ = srcTrie.Commit(false)
if err := srcDb.Update(root, preRoot, trienode.NewWithNodeSet(nodes)); err != nil {
panic(err)
}

18
trie/tracer_test.go
View File

@ -70,7 +70,7 @@ func testTrieTracer(t *testing.T, vals []struct{ k, v string }) {
}
insertSet := copySet(trie.tracer.inserts) // copy before commit
deleteSet := copySet(trie.tracer.deletes) // copy before commit
root, nodes := trie.Commit(false)
root, nodes, _ := trie.Commit(false)
db.Update(root, types.EmptyRootHash, trienode.NewWithNodeSet(nodes))
seen := setKeys(iterNodes(db, root))
@ -136,7 +136,7 @@ func testAccessList(t *testing.T, vals []struct{ k, v string }) {
for _, val := range vals {
trie.MustUpdate([]byte(val.k), []byte(val.v))
}
root, nodes := trie.Commit(false)
root, nodes, _ := trie.Commit(false)
db.Update(root, types.EmptyRootHash, trienode.NewWithNodeSet(nodes))
trie, _ = New(TrieID(root), db)
@ -151,7 +151,7 @@ func testAccessList(t *testing.T, vals []struct{ k, v string }) {
for _, val := range vals {
trie.MustUpdate([]byte(val.k), randBytes(32))
}
root, nodes = trie.Commit(false)
root, nodes, _ = trie.Commit(false)
db.Update(root, parent, trienode.NewWithNodeSet(nodes))
trie, _ = New(TrieID(root), db)
@ -169,7 +169,7 @@ func testAccessList(t *testing.T, vals []struct{ k, v string }) {
keys = append(keys, string(key))
trie.MustUpdate(key, randBytes(32))
}
root, nodes = trie.Commit(false)
root, nodes, _ = trie.Commit(false)
db.Update(root, parent, trienode.NewWithNodeSet(nodes))
trie, _ = New(TrieID(root), db)
@ -184,7 +184,7 @@ func testAccessList(t *testing.T, vals []struct{ k, v string }) {
for _, key := range keys {
trie.MustUpdate([]byte(key), nil)
}
root, nodes = trie.Commit(false)
root, nodes, _ = trie.Commit(false)
db.Update(root, parent, trienode.NewWithNodeSet(nodes))
trie, _ = New(TrieID(root), db)
@ -199,7 +199,7 @@ func testAccessList(t *testing.T, vals []struct{ k, v string }) {
for _, val := range vals {
trie.MustUpdate([]byte(val.k), nil)
}
root, nodes = trie.Commit(false)
root, nodes, _ = trie.Commit(false)
db.Update(root, parent, trienode.NewWithNodeSet(nodes))
trie, _ = New(TrieID(root), db)
@ -218,7 +218,7 @@ func TestAccessListLeak(t *testing.T) {
for _, val := range standard {
trie.MustUpdate([]byte(val.k), []byte(val.v))
}
root, nodes := trie.Commit(false)
root, nodes, _ := trie.Commit(false)
db.Update(root, types.EmptyRootHash, trienode.NewWithNodeSet(nodes))
var cases = []struct {
@ -268,7 +268,7 @@ func TestTinyTree(t *testing.T) {
for _, val := range tiny {
trie.MustUpdate([]byte(val.k), randBytes(32))
}
root, set := trie.Commit(false)
root, set, _ := trie.Commit(false)
db.Update(root, types.EmptyRootHash, trienode.NewWithNodeSet(set))
parent := root
@ -277,7 +277,7 @@ func TestTinyTree(t *testing.T) {
for _, val := range tiny {
trie.MustUpdate([]byte(val.k), []byte(val.v))
}
root, set = trie.Commit(false)
root, set, _ = trie.Commit(false)
db.Update(root, parent, trienode.NewWithNodeSet(set))
trie, _ = New(TrieID(root), db)

8
trie/trie.go
View File

@ -607,7 +607,7 @@ func (t *Trie) Hash() common.Hash {
// The returned nodeset can be nil if the trie is clean (nothing to commit).
// Once the trie is committed, it's not usable anymore. A new trie must
// be created with new root and updated trie database for following usage
func (t *Trie) Commit(collectLeaf bool) (common.Hash, *trienode.NodeSet) {
func (t *Trie) Commit(collectLeaf bool) (common.Hash, *trienode.NodeSet, error) {
defer t.tracer.reset()
defer func() {
t.committed = true
@ -619,7 +619,7 @@ func (t *Trie) Commit(collectLeaf bool) (common.Hash, *trienode.NodeSet) {
// - The trie was empty and no update happens
// - The trie was non-empty and all nodes are dropped
if t.root == nil {
return types.EmptyRootHash, nodes
return types.EmptyRootHash, nodes, nil
}
// Derive the hash for all dirty nodes first. We hold the assumption
// in the following procedure that all nodes are hashed.
@ -631,10 +631,10 @@ func (t *Trie) Commit(collectLeaf bool) (common.Hash, *trienode.NodeSet) {
// Replace the root node with the origin hash in order to
// ensure all resolved nodes are dropped after the commit.
t.root = hashedNode
return rootHash, nil
return rootHash, nil, nil
}
t.root = newCommitter(nodes, t.tracer, collectLeaf).Commit(t.root)
return rootHash, nodes
return rootHash, nodes, nil
}
// hashRoot calculates the root hash of the given trie

24
trie/trie_test.go
View File

@ -88,7 +88,7 @@ func testMissingNode(t *testing.T, memonly bool, scheme string) {
trie := NewEmpty(triedb)
updateString(trie, "120000", "qwerqwerqwerqwerqwerqwerqwerqwer")
updateString(trie, "123456", "asdfasdfasdfasdfasdfasdfasdfasdf")
root, nodes := trie.Commit(false)
root, nodes, _ := trie.Commit(false)
triedb.Update(root, types.EmptyRootHash, trienode.NewWithNodeSet(nodes))
if !memonly {
@ -177,7 +177,7 @@ func TestInsert(t *testing.T) {
updateString(trie, "A", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa")
exp = common.HexToHash("d23786fb4a010da3ce639d66d5e904a11dbc02746d1ce25029e53290cabf28ab")
root, _ = trie.Commit(false)
root, _, _ = trie.Commit(false)
if root != exp {
t.Errorf("case 2: exp %x got %x", exp, root)
}
@ -202,7 +202,7 @@ func TestGet(t *testing.T) {
if i == 1 {
return
}
root, nodes := trie.Commit(false)
root, nodes, _ := trie.Commit(false)
db.Update(root, types.EmptyRootHash, trienode.NewWithNodeSet(nodes))
trie, _ = New(TrieID(root), db)
}
@ -274,7 +274,7 @@ func TestReplication(t *testing.T) {
for _, val := range vals {
updateString(trie, val.k, val.v)
}
root, nodes := trie.Commit(false)
root, nodes, _ := trie.Commit(false)
db.Update(root, types.EmptyRootHash, trienode.NewWithNodeSet(nodes))
// create a new trie on top of the database and check that lookups work.
@ -287,7 +287,7 @@ func TestReplication(t *testing.T) {
t.Errorf("trie2 doesn't have %q => %q", kv.k, kv.v)
}
}
hash, nodes := trie2.Commit(false)
hash, nodes, _ := trie2.Commit(false)
if hash != root {
t.Errorf("root failure. expected %x got %x", root, hash)
}
@ -501,7 +501,7 @@ func runRandTest(rt randTest) bool {
case opHash:
tr.Hash()
case opCommit:
root, nodes := tr.Commit(true)
root, nodes, _ := tr.Commit(true)
if nodes != nil {
triedb.Update(root, origin, trienode.NewWithNodeSet(nodes))
}
@ -734,7 +734,7 @@ func TestCommitAfterHash(t *testing.T) {
if exp != root {
t.Errorf("got %x, exp %x", root, exp)
}
root, _ = trie.Commit(false)
root, _, _ = trie.Commit(false)
if exp != root {
t.Errorf("got %x, exp %x", root, exp)
}
@ -837,7 +837,7 @@ func TestCommitSequence(t *testing.T) {
trie.MustUpdate(crypto.Keccak256(addresses[i][:]), accounts[i])
}
// Flush trie -> database
root, nodes := trie.Commit(false)
root, nodes, _ := trie.Commit(false)
db.Update(root, types.EmptyRootHash, trienode.NewWithNodeSet(nodes))
// Flush memdb -> disk (sponge)
db.Commit(root, false)
@ -878,7 +878,7 @@ func TestCommitSequenceRandomBlobs(t *testing.T) {
trie.MustUpdate(key, val)
}
// Flush trie -> database
root, nodes := trie.Commit(false)
root, nodes, _ := trie.Commit(false)
db.Update(root, types.EmptyRootHash, trienode.NewWithNodeSet(nodes))
// Flush memdb -> disk (sponge)
db.Commit(root, false)
@ -917,7 +917,7 @@ func TestCommitSequenceStackTrie(t *testing.T) {
stTrie.Update(key, val)
}
// Flush trie -> database
root, nodes := trie.Commit(false)
root, nodes, _ := trie.Commit(false)
// Flush memdb -> disk (sponge)
db.Update(root, types.EmptyRootHash, trienode.NewWithNodeSet(nodes))
db.Commit(root, false)
@ -965,7 +965,7 @@ func TestCommitSequenceSmallRoot(t *testing.T) {
trie.Update(key, []byte{0x1})
stTrie.Update(key, []byte{0x1})
// Flush trie -> database
root, nodes := trie.Commit(false)
root, nodes, _ := trie.Commit(false)
// Flush memdb -> disk (sponge)
db.Update(root, types.EmptyRootHash, trienode.NewWithNodeSet(nodes))
db.Commit(root, false)
@ -1138,7 +1138,7 @@ func benchmarkDerefRootFixedSize(b *testing.B, addresses [][20]byte, accounts []
trie.MustUpdate(crypto.Keccak256(addresses[i][:]), accounts[i])
}
h := trie.Hash()
root, nodes := trie.Commit(false)
root, nodes, _ := trie.Commit(false)
triedb.Update(root, types.EmptyRootHash, trienode.NewWithNodeSet(nodes))
b.StartTimer()
triedb.Dereference(h)