// to this type of plugin
	volumesPerPlugin := make(map[string][]*volume.Spec)
	// volumeSpecMap maps from a volume spec to its unique volumeName which will be used
	// when calling MarkVolumeAsDetached
	volumeSpecMap := make(map[*volume.Spec]v1.UniqueVolumeName)

	// Iterate each volume spec and put them into a map index by the pluginName
	for _, volumeAttached := range attachedVolumes {