return "", fmt.Errorf("AttachFileDevice not supported for this build.")
}

// DetachFileDevice takes a path to the attached block device and
// detach it from block device.
func (v VolumePathHandler) DetachFileDevice(path string) error {
	return fmt.Errorf("DetachFileDevice not supported for this build.")
}

// GetLoopDevice returns the full path to the loop device associated with the given path.

		if err != nil {
			return "", fmt.Errorf("makeLoopDevice failed for path %s: %v", path, err)
		}
	}
	return blockDevicePath, nil
}

// DetachFileDevice takes a path to the attached block device and
// detach it from block device.
func (v VolumePathHandler) DetachFileDevice(path string) error {
	loopPath, err := v.GetLoopDevice(path)
	if err != nil {
		if err.Error() == ErrDeviceNotFound {

	// AttachFileDevice takes a path to a regular file and makes it available as an
	// attached block device.
	AttachFileDevice(path string) (string, error)
	// DetachFileDevice takes a path to the attached block device and
	// detach it from block device.
	DetachFileDevice(path string) error
	// GetLoopDevice returns the full path to the loop device associated with the given path.
	GetLoopDevice(path string) (string, error)
}

	globalUnmapPath,
	podDeviceUnmapPath,
	volumeMapName string,
	podUID utypes.UID,
) error {
	// Release file descriptor lock.
	err := blkUtil.DetachFileDevice(filepath.Join(globalUnmapPath, string(podUID)))
	if err != nil {
		return fmt.Errorf("blkUtil.DetachFileDevice failed. globalUnmapPath:%s, podUID: %s: %v",
			globalUnmapPath, string(podUID), err)
	}

	// unmap devicePath from pod volume path

	return "", nil
}

func (fv *FakeVolumePathHandler) AttachFileDevice(path string) (string, error) {
	// nil is success, else error
	return "", nil
}

func (fv *FakeVolumePathHandler) DetachFileDevice(path string) error {
	// nil is success, else error
	return nil
}

func (fv *FakeVolumePathHandler) GetLoopDevice(path string) (string, error) {
	// nil is success, else error