manager:     &ISCSIUtil{},
	}, nil
}

func (plugin *iscsiPlugin) NewDeviceMounter() (volume.DeviceMounter, error) {
	return plugin.NewAttacher()
}

func (plugin *iscsiPlugin) GetDeviceMountRefs(deviceMountPath string) ([]string, error) {
	mounter := plugin.host.GetMounter(iscsiPluginName)
	return mounter.GetMountRefs(deviceMountPath)
}

	defer plugin.Unlock()
	for _, unsupportedCommand := range plugin.unsupportedCommands {
		if command == unsupportedCommand {
			return true
		}
	}
	return false
}

func (plugin *flexVolumePlugin) GetDeviceMountRefs(deviceMountPath string) ([]string, error) {
	mounter := plugin.host.GetMounter(plugin.GetPluginName())
	return mounter.GetMountRefs(deviceMountPath)
}

		host:    plugin.host,
		manager: &fcUtil{},
	}, nil
}

func (plugin *fcPlugin) NewDeviceMounter() (volume.DeviceMounter, error) {
	return plugin.NewAttacher()
}

func (plugin *fcPlugin) GetDeviceMountRefs(deviceMountPath string) ([]string, error) {
	mounter := plugin.host.GetMounter(plugin.GetPluginName())
	return mounter.GetMountRefs(deviceMountPath)
}

	return true, nil
}

func (plugin *TestPlugin) NewDeviceUnmounter() (volume.DeviceUnmounter, error) {
	return plugin.NewDetacher()
}

func (plugin *TestPlugin) GetDeviceMountRefs(deviceMountPath string) ([]string, error) {
	return []string{}, nil
}

func (plugin *TestPlugin) SupportsMountOption() bool {
	return false
}

func (f *FakeDeviceMountableVolumePlugin) NewDeviceUnmounter() (volume.DeviceUnmounter, error) {
	return f.Plugin.NewDeviceUnmounter()
}

func (f *FakeDeviceMountableVolumePlugin) GetDeviceMountRefs(deviceMountPath string) ([]string, error) {
	return f.Plugin.GetDeviceMountRefs(deviceMountPath)
}

var _ volume.VolumePlugin = &FakeDeviceMountableVolumePlugin{}
var _ volume.DeviceMountableVolumePlugin = &FakeDeviceMountableVolumePlugin{}

	return &deviceMounter{
		plugin:  plugin,
		mounter: util.NewSafeFormatAndMountFromHost(plugin.GetPluginName(), plugin.host),
	}, nil
}

func (plugin *localVolumePlugin) GetDeviceMountRefs(deviceMountPath string) ([]string, error) {
	mounter := plugin.host.GetMounter(plugin.GetPluginName())
	return mounter.GetMountRefs(deviceMountPath)
}

var _ volume.DeviceUnmounter = &deviceMounter{}

	// Persistent volumes support device mount.
	return true, nil
}

func (p *csiPlugin) NewDeviceUnmounter() (volume.DeviceUnmounter, error) {
	return p.NewDetacher()
}

func (p *csiPlugin) GetDeviceMountRefs(deviceMountPath string) ([]string, error) {
	m := p.host.GetMounter(p.GetPluginName())
	return m.GetMountRefs(deviceMountPath)
}

// BlockVolumePlugin methods
var _ volume.BlockVolumePlugin = &csiPlugin{}

		}
		refs, err := deviceMountableVolumePlugin.GetDeviceMountRefs(deviceMountPath)

		if err != nil || util.HasMountRefs(deviceMountPath, refs) {
			if err == nil {
				err = fmt.Errorf("the device mount path %q is still mounted by other references %v", deviceMountPath, refs)
			}
			eventErr, detailedErr := deviceToDetach.GenerateError("GetDeviceMountRefs check failed", err)

type DeviceMountableVolumePlugin interface {
	VolumePlugin
	NewDeviceMounter() (DeviceMounter, error)
	NewDeviceUnmounter() (DeviceUnmounter, error)
	GetDeviceMountRefs(deviceMountPath string) ([]string, error)
	// CanDeviceMount determines if device in volume.Spec is mountable
	CanDeviceMount(spec *Spec) (bool, error)
}