1 files changed, 0 insertions, 74 deletions
diff --git a/vendor/k8s.io/kubernetes/pkg/volume/metrics_cached.go b/vendor/k8s.io/kubernetes/pkg/volume/metrics_cached.go
deleted file mode 100644
index ac0dc9b7a..000000000
--- a/vendor/k8s.io/kubernetes/pkg/volume/metrics_cached.go
+++ /dev/null
@@ -1,74 +0,0 @@
-/*
-Copyright 2014 The Kubernetes 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 volume
-
-import (
-	"sync"
-	"sync/atomic"
-)
-
-var _ MetricsProvider = &cachedMetrics{}
-
-// cachedMetrics represents a MetricsProvider that wraps another provider and
-// caches the result.
-type cachedMetrics struct {
-	wrapped       MetricsProvider
-	resultError   error
-	resultMetrics *Metrics
-	once          cacheOnce
-}
-
-// NewCachedMetrics creates a new cachedMetrics wrapping another
-// MetricsProvider and caching the results.
-func NewCachedMetrics(provider MetricsProvider) MetricsProvider {
-	return &cachedMetrics{wrapped: provider}
-}
-
-// GetMetrics runs the wrapped metrics provider's GetMetrics methd once and
-// caches the result. Will not cache result if there is an error.
-// See MetricsProvider.GetMetrics
-func (md *cachedMetrics) GetMetrics() (*Metrics, error) {
-	md.once.cache(func() error {
-		md.resultMetrics, md.resultError = md.wrapped.GetMetrics()
-		return md.resultError
-	})
-	return md.resultMetrics, md.resultError
-}
-
-// Copied from sync.Once but we don't want to cache the results if there is an
-// error
-type cacheOnce struct {
-	m    sync.Mutex
-	done uint32
-}
-
-// Copied from sync.Once but we don't want to cache the results if there is an
-// error
-func (o *cacheOnce) cache(f func() error) {
-	if atomic.LoadUint32(&o.done) == 1 {
-		return
-	}
-	// Slow-path.
-	o.m.Lock()
-	defer o.m.Unlock()
-	if o.done == 0 {
-		err := f()
-		if err == nil {
-			atomic.StoreUint32(&o.done, 1)
-		}
-	}
-}