if obj.StorageMode == "" {
		obj.StorageMode = "ThinProvisioned"
	}
	if obj.FSType == "" {
		obj.FSType = "xfs"
	}
}

func SetDefaults_ScaleIOPersistentVolumeSource(obj *v1.ScaleIOPersistentVolumeSource) {
	if obj.StorageMode == "" {
		obj.StorageMode = "ThinProvisioned"
	}
	if obj.FSType == "" {
		obj.FSType = "xfs"
	}
}

func SetDefaults_HostPathVolumeSource(obj *v1.HostPathVolumeSource) {

			}
			sio.FSType = c.RandString()
			if sio.FSType == "" {
				sio.FSType = "xfs"
			}
		},
		func(sio *core.ScaleIOPersistentVolumeSource, c fuzz.Continue) {
			sio.StorageMode = c.RandString()
			if sio.StorageMode == "" {
				sio.StorageMode = "ThinProvisioned"
			}
			sio.FSType = c.RandString()
			if sio.FSType == "" {
				sio.FSType = "xfs"
			}
		},

	err = dm.mounter.FormatAndMount(devicePath, deviceMountPath, fstype, mountOptions)
	if err != nil {
		if rmErr := os.Remove(deviceMountPath); rmErr != nil {
			klog.Warningf("local: failed to remove %s: %v", deviceMountPath, rmErr)
		}
		return fmt.Errorf("local: failed to mount device %s at %s (fstype: %s), error %w", devicePath, deviceMountPath, fstype, err)
	}

	pwx, readOnly, err := getVolumeSource(spec)
	if err != nil {
		return nil, err
	}

	volumeID := pwx.VolumeID
	fsType := pwx.FSType

	return &portworxVolumeMounter{
		portworxVolume: &portworxVolume{
			podUID:          podUID,
			volName:         spec.Name(),
			volumeID:        volumeID,
			manager:         manager,

		//Add volume metrics
		iscsiDisk.MetricsProvider = volume.NewMetricsStatFS(iscsiDisk.GetPath())
	}
	return &iscsiDiskMounter{
		iscsiDisk:    iscsiDisk,
		fsType:       fsType,
		readOnly:     readOnly,
		mounter:      &mount.SafeFormatAndMount{Interface: mounter, Exec: exec},
		exec:         exec,
		deviceUtil:   ioutil.NewDeviceHandler(ioutil.NewIOHandler()),
		mountOptions: ioutil.MountOptionFromSpec(spec),
	}, nil

	if err != nil {
		return nil, err
	}

	klog.V(5).Infof("fc: newMounterInternal volumeMode %s", volumeMode)
	return &fcDiskMounter{
		fcDisk:       fcDisk,
		fsType:       fc.FSType,
		volumeMode:   volumeMode,
		readOnly:     readOnly,
		mounter:      &mount.SafeFormatAndMount{Interface: mounter, Exec: exec},
		deviceUtil:   util.NewDeviceHandler(util.NewIOHandler()),

// On success a sorted meta cache stream will be returned.
// Metadata has data stripped, if any.
func (s *xlStorage) WalkDir(ctx context.Context, opts WalkDirOptions, wr io.Writer) (err error) {
	legacyFS := !(s.fsType == xfs || s.fsType == ext4)

	s.RLock()
	legacy := s.formatLegacy
	s.RUnlock()

	// Verify if volume is valid and it exists.
	volumeDir, err := s.getVolDir(opts.Bucket)
	if err != nil {
		return err
	}

}

//sys	mount(source string, target string, fstype string, flags uintptr, data *byte) (err error)

func Mount(source string, target string, fstype string, flags uintptr, data string) (err error) {
	// Certain file systems get rather angry and EINVAL if you give
	// them an empty string of data, rather than NULL.
	if data == "" {
		return mount(source, target, fstype, flags, nil)
	}
	datap, err := BytePtrFromString(data)

	// to determine if Kubernetes should modify ownership and permissions of the volume.
	// With the default policy the defined fsGroup will only be applied
	// if a fstype is defined and the volume's access mode contains ReadWriteOnce.
	//
	// +optional
	FSGroupPolicy *FSGroupPolicy `json:"fsGroupPolicy,omitempty" protobuf:"bytes,5,opt,name=fsGroupPolicy"`

		t.Errorf("Expected %v physicalMounter calls during setup, got %v", e, a)
	} else if config.expectedSetupMounts == 1 &&
		(log[0].Action != mount.FakeActionMount || (log[0].FSType != "tmpfs" && log[0].FSType != "hugetlbfs")) {
		t.Errorf("Unexpected physicalMounter action during setup: %#v", log[0])
	}
	physicalMounter.ResetLog()

	// Make an unmounter for the volume