// if the given local volume path is of already filesystem directory, return directly because
		// we do not want to prevent mount operation from succeeding.
		klog.InfoS("Expansion of directory based local volumes is NO-OP", "localVolumePath", localDevicePath)
		return true, nil
	default:
		return false, fmt.Errorf("only directory and block device are supported")
	}
}

func getVolumeSourceFSType(spec *volume.Spec) (string, error) {