})
	return result, nil
}

// PreFilterExtensions returns prefilter extensions, pod add and remove.
func (pl *VolumeBinding) PreFilterExtensions() framework.PreFilterExtensions {
	return nil
}

func getStateData(cs *framework.CycleState) (*stateData, error) {
	state, err := cs.Read(stateKey)
	if err != nil {
		return nil, err
	}
	s, ok := state.(*stateData)
	if !ok {

	// Thus we make a fast path for it, to avoid unnecessary computations in this case.
	if len(pod.Spec.Volumes) == 0 {
		return nil
	}
	var podPVTopologies []pvTopology
	state, err := getStateData(cs)
	if err != nil {
		// Fallback to calculate pv list here
		var status *framework.Status
		podPVTopologies, status = pl.getPVbyPod(ctx, pod)
		if !status.IsSuccess() {
			return status
		}
	} else {

	}
}

// PreFilterExtensions returns prefilter extensions, pod add and remove.
func (pl *dynamicResources) PreFilterExtensions() framework.PreFilterExtensions {
	return nil
}

func getStateData(cs *framework.CycleState) (*stateData, error) {
	state, err := cs.Read(stateKey)
	if err != nil {
		return nil, err
	}
	s, ok := state.(*stateData)
	if !ok {

			if !gotPreFilterStatus.IsSuccess() {
				// scheduler framework will skip Filter if PreFilter fails
				return
			}

			t.Logf("Verify: check state after prefilter phase")
			got, err := getStateData(state)
			if err != nil {
				t.Fatal(err)
			}
			stateCmpOpts := []cmp.Option{
				cmp.AllowUnexported(stateData{}),
				cmp.AllowUnexported(PodVolumeClaims{}),