fix: dont reset tail read node

connection_test.go

@@ -129,6 +129,13 @@ func TestConnectionRead(t *testing.T) {
 }
 
 func TestConnectionNoCopyReadString(t *testing.T) {
+	err := Configure(Config{Feature: Feature{AlwaysNoCopyRead: true}})
+	MustNil(t, err)
+	defer func() {
+		err = Configure(Config{Feature: Feature{AlwaysNoCopyRead: false}})
+		MustNil(t, err)
+	}()
+
 	r, w := GetSysFdPairs()
 	var rconn, wconn = &connection{}, &connection{}
 	rconn.init(&netFD{fd: r}, nil)

netpoll_options.go

@@ -12,9 +12,6 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-//go:build !windows
-// +build !windows
-
 package netpoll
 
 import (

nocopy_linkbuffer.go

@@ -675,9 +675,8 @@ func (b *UnsafeLinkBuffer) calcMaxSize() (sum int) {
 // resetTail will reset tail node or add an empty tail node to
 // guarantee the tail node is not larger than 8KB
 func (b *UnsafeLinkBuffer) resetTail(maxSize int) {
-	// FIXME: Reset should be removed when find a decent way to reuse buffer
 	if maxSize <= pagesize {
-		b.write.Reset()
+		// no need to reset a small buffer tail node
 		return
 	}
 	// set nil tail