code: func GenericResizeFS(host volume.VolumeHost, pluginName, devicePath, deviceMountPath string) (bool, error) {
  	mounter := host.GetMounter(pluginName)
  	diskFormatter := &mount.SafeFormatAndMount{
  		Interface: mounter,
  		Exec:      host.GetExec(pluginName),
  	}
  	resizer := resizefs.NewResizeFs(diskFormatter)
  	return resizer.Resize(devicePath, deviceMountPath)
  }
docs: // GenericResizeFS : call generic filesystem resizer for plugins that don't have any special filesystem resize requirements