// Block volume support
func (fv *FakeVolume) UnmapPodDevice() error {
	fv.Lock()
	defer fv.Unlock()
	fv.UnmapPodDeviceCallCount++
	return nil
}

// Block volume support
func (fv *FakeVolume) GetUnmapPodDeviceCallCount() int {
	fv.RLock()
	defer fv.RUnlock()
	return fv.UnmapPodDeviceCallCount
}

// Block volume support
func (fv *FakeVolume) MapPodDevice() (string, error) {
	fv.Lock()
	defer fv.Unlock()