pkg: rename {blockio,rdt}_default.go -> nonlinux.go

Signed-off-by: Wei Fu <fuweid89@gmail.com>

pkg/rdt/rdt_nonlinux.go

@@ -0,0 +1,30 @@
+//go:build !linux || no_rdt
+
+/*
+   Copyright The containerd Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+package rdt
+
+// IsEnabled always returns false in non-linux platforms.
+func IsEnabled() bool { return false }
+
+// SetConfig always is no-op in non-linux platforms.
+func SetConfig(configFilePath string) error { return nil }
+
+// ContainerClassFromAnnotations always is no-op in non-linux platforms.
+func ContainerClassFromAnnotations(containerName string, containerAnnotations, podAnnotations map[string]string) (string, error) {
+	return "", nil
+}