store/tikv: remove kvfilter option

store/driver/txn/txn_driver.go

@@ -35,7 +35,7 @@ type tikvTxn struct {
 
 // NewTiKVTxn returns a new Transaction.
 func NewTiKVTxn(txn *tikv.KVTxn) kv.Transaction {
-	txn.SetOption(tikvstore.KVFilter, TiDBKVFilter{})
+	txn.SetKVFilter(TiDBKVFilter{})
 
 	entryLimit := atomic.LoadUint64(&kv.TxnEntrySizeLimit)
 	totalLimit := atomic.LoadUint64(&kv.TxnTotalSizeLimit)

store/tikv/2pc.go

@@ -327,7 +327,7 @@ func (c *twoPhaseCommitter) initKeysAndMutations() error {
 	sizeHint := txn.us.GetMemBuffer().Len()
 	c.mutations = newMemBufferMutations(sizeHint, memBuf)
 	c.isPessimistic = txn.IsPessimistic()
-	filter := txn.getKVFilter()
+	filter := txn.kvFilter
 
 	var err error
 	for it := memBuf.IterWithFlags(nil, nil); it.Valid(); err = it.Next() {

store/tikv/kv/option.go

@@ -59,8 +59,6 @@ const (
 	IsStalenessReadOnly
 	// MatchStoreLabels indicates the labels the store should be matched
 	MatchStoreLabels
-	// KVFilter filters out the key-value pairs in the memBuf that is unnecessary to be committed
-	KVFilter
 )
 
 // Priority value for transaction priority.

store/tikv/tests/2pc_test.go

@@ -1032,7 +1032,7 @@ func (s *testCommitterSuite) TestResolvePessimisticLock(c *C) {
 	untouchedIndexValue := []byte{0, 0, 0, 0, 0, 0, 0, 1, 49}
 	noValueIndexKey := []byte("t00000001_i000000002")
 	txn := s.begin(c)
-	txn.SetOption(kv.KVFilter, drivertxn.TiDBKVFilter{})
+	txn.SetKVFilter(drivertxn.TiDBKVFilter{})
 	err := txn.Set(untouchedIndexKey, untouchedIndexValue)
 	c.Assert(err, IsNil)
 	lockCtx := &kv.LockCtx{ForUpdateTS: txn.StartTS(), WaitStartTime: time.Now(), LockWaitTime: tikv.LockNoWait}

store/tikv/txn.go

@@ -73,8 +73,8 @@ type KVTxn struct {
 	schemaAmender SchemaAmender
 	// commitCallback is called after current transaction gets committed
 	commitCallback func(info string, err error)
-
-	binlog BinlogExecutor
+	binlog         BinlogExecutor
+	kvFilter       KVFilter
 }
 
 func newTiKVTxn(store *KVStore, txnScope string) (*KVTxn, error) {
@@ -198,18 +198,16 @@ func (txn *KVTxn) DelOption(opt int) {
 	txn.us.DelOption(opt)
 }
 
+// SetKVFilter sets the filter to ignore key-values in memory buffer.
+func (txn *KVTxn) SetKVFilter(filter KVFilter) {
+	txn.kvFilter = filter
+}
+
 // IsPessimistic returns true if it is pessimistic.
 func (txn *KVTxn) IsPessimistic() bool {
 	return txn.us.GetOption(kv.Pessimistic) != nil
 }
 
-func (txn *KVTxn) getKVFilter() KVFilter {
-	if filter := txn.us.GetOption(kv.KVFilter); filter != nil {
-		return filter.(KVFilter)
-	}
-	return nil
-}
-
 // Commit commits the transaction operations to KV store.
 func (txn *KVTxn) Commit(ctx context.Context) error {
 	if span := opentracing.SpanFromContext(ctx); span != nil && span.Tracer() != nil {