Graduate ReadWriteOncePod to GA

pkg/apis/core/validation/validation.go

@@ -1653,33 +1653,20 @@ var allowedTemplateObjectMetaFields = map[string]bool{
 
 // PersistentVolumeSpecValidationOptions contains the different settings for PeristentVolume validation
 type PersistentVolumeSpecValidationOptions struct {
-	// Allow spec to contain the "ReadWiteOncePod" access mode
-	AllowReadWriteOncePod bool
 }
 
 // ValidatePersistentVolumeName checks that a name is appropriate for a
 // PersistentVolumeName object.
 var ValidatePersistentVolumeName = apimachineryvalidation.NameIsDNSSubdomain
 
-var supportedAccessModes = sets.NewString(string(core.ReadWriteOnce), string(core.ReadOnlyMany), string(core.ReadWriteMany))
+var supportedAccessModes = sets.NewString(string(core.ReadWriteOnce), string(core.ReadOnlyMany), string(core.ReadWriteMany), string(core.ReadWriteOncePod))
 
 var supportedReclaimPolicy = sets.NewString(string(core.PersistentVolumeReclaimDelete), string(core.PersistentVolumeReclaimRecycle), string(core.PersistentVolumeReclaimRetain))
 
 var supportedVolumeModes = sets.NewString(string(core.PersistentVolumeBlock), string(core.PersistentVolumeFilesystem))
 
 func ValidationOptionsForPersistentVolume(pv, oldPv *core.PersistentVolume) PersistentVolumeSpecValidationOptions {
-	opts := PersistentVolumeSpecValidationOptions{
+	return PersistentVolumeSpecValidationOptions{}
-		AllowReadWriteOncePod: utilfeature.DefaultFeatureGate.Enabled(features.ReadWriteOncePod),
-	}
-	if oldPv == nil {
-		// If there's no old PV, use the options based solely on feature enablement
-		return opts
-	}
-	if helper.ContainsAccessMode(oldPv.Spec.AccessModes, core.ReadWriteOncePod) {
-		// If the old object allowed "ReadWriteOncePod", continue to allow it in the new object
-		opts.AllowReadWriteOncePod = true
-	}
-	return opts
 }
 
 func ValidatePersistentVolumeSpec(pvSpec *core.PersistentVolumeSpec, pvName string, validateInlinePersistentVolumeSpec bool, fldPath *field.Path, opts PersistentVolumeSpecValidationOptions) field.ErrorList {
@@ -1701,15 +1688,10 @@ func ValidatePersistentVolumeSpec(pvSpec *core.PersistentVolumeSpec, pvName stri
 		allErrs = append(allErrs, field.Required(fldPath.Child("accessModes"), ""))
 	}
 
-	expandedSupportedAccessModes := sets.StringKeySet(supportedAccessModes)
-	if opts.AllowReadWriteOncePod {
-		expandedSupportedAccessModes.Insert(string(core.ReadWriteOncePod))
-	}
-
 	foundReadWriteOncePod, foundNonReadWriteOncePod := false, false
 	for _, mode := range pvSpec.AccessModes {
-		if !expandedSupportedAccessModes.Has(string(mode)) {
+		if !supportedAccessModes.Has(string(mode)) {
-			allErrs = append(allErrs, field.NotSupported(fldPath.Child("accessModes"), mode, expandedSupportedAccessModes.List()))
+			allErrs = append(allErrs, field.NotSupported(fldPath.Child("accessModes"), mode, supportedAccessModes.List()))
 		}
 
 		if mode == core.ReadWriteOncePod {
@@ -2016,8 +1998,6 @@ func ValidatePersistentVolumeStatusUpdate(newPv, oldPv *core.PersistentVolume) f
 }
 
 type PersistentVolumeClaimSpecValidationOptions struct {
-	// Allow spec to contain the "ReadWiteOncePod" access mode
-	AllowReadWriteOncePod bool
 	// Allow users to recover from previously failing expansion operation
 	EnableRecoverFromExpansionFailure bool
 	// Allow to validate the label value of the label selector
@@ -2028,7 +2008,6 @@ type PersistentVolumeClaimSpecValidationOptions struct {
 
 func ValidationOptionsForPersistentVolumeClaim(pvc, oldPvc *core.PersistentVolumeClaim) PersistentVolumeClaimSpecValidationOptions {
 	opts := PersistentVolumeClaimSpecValidationOptions{
-		AllowReadWriteOncePod:             utilfeature.DefaultFeatureGate.Enabled(features.ReadWriteOncePod),
 		EnableRecoverFromExpansionFailure: utilfeature.DefaultFeatureGate.Enabled(features.RecoverVolumeExpansionFailure),
 		AllowInvalidLabelValueInSelector:  false,
 	}
@@ -2048,11 +2027,6 @@ func ValidationOptionsForPersistentVolumeClaim(pvc, oldPvc *core.PersistentVolum
 		opts.AllowInvalidLabelValueInSelector = true
 	}
 
-	if helper.ContainsAccessMode(oldPvc.Spec.AccessModes, core.ReadWriteOncePod) {
-		// If the old object allowed "ReadWriteOncePod", continue to allow it in the new object
-		opts.AllowReadWriteOncePod = true
-	}
-
 	if helper.ClaimContainsAllocatedResources(oldPvc) ||
 		helper.ClaimContainsAllocatedResourceStatus(oldPvc) {
 		opts.EnableRecoverFromExpansionFailure = true
@@ -2062,7 +2036,6 @@ func ValidationOptionsForPersistentVolumeClaim(pvc, oldPvc *core.PersistentVolum
 
 func ValidationOptionsForPersistentVolumeClaimTemplate(claimTemplate, oldClaimTemplate *core.PersistentVolumeClaimTemplate) PersistentVolumeClaimSpecValidationOptions {
 	opts := PersistentVolumeClaimSpecValidationOptions{
-		AllowReadWriteOncePod:            utilfeature.DefaultFeatureGate.Enabled(features.ReadWriteOncePod),
 		AllowInvalidLabelValueInSelector: false,
 	}
 	if oldClaimTemplate == nil {
@@ -2076,10 +2049,6 @@ func ValidationOptionsForPersistentVolumeClaimTemplate(claimTemplate, oldClaimTe
 		// If the old object had an invalid label selector, continue to allow it in the new object
 		opts.AllowInvalidLabelValueInSelector = true
 	}
-	if helper.ContainsAccessMode(oldClaimTemplate.Spec.AccessModes, core.ReadWriteOncePod) {
-		// If the old object allowed "ReadWriteOncePod", continue to allow it in the new object
-		opts.AllowReadWriteOncePod = true
-	}
 	return opts
 }
 
@@ -2172,15 +2141,10 @@ func ValidatePersistentVolumeClaimSpec(spec *core.PersistentVolumeClaimSpec, fld
 		allErrs = append(allErrs, unversionedvalidation.ValidateLabelSelector(spec.Selector, labelSelectorValidationOpts, fldPath.Child("selector"))...)
 	}
 
-	expandedSupportedAccessModes := sets.StringKeySet(supportedAccessModes)
-	if opts.AllowReadWriteOncePod {
-		expandedSupportedAccessModes.Insert(string(core.ReadWriteOncePod))
-	}
-
 	foundReadWriteOncePod, foundNonReadWriteOncePod := false, false
 	for _, mode := range spec.AccessModes {
-		if !expandedSupportedAccessModes.Has(string(mode)) {
+		if !supportedAccessModes.Has(string(mode)) {
-			allErrs = append(allErrs, field.NotSupported(fldPath.Child("accessModes"), mode, expandedSupportedAccessModes.List()))
+			allErrs = append(allErrs, field.NotSupported(fldPath.Child("accessModes"), mode, supportedAccessModes.List()))
 		}
 
 		if mode == core.ReadWriteOncePod {

pkg/apis/core/validation/validation_test.go

@@ -109,9 +109,8 @@ func TestValidatePersistentVolumes(t *testing.T) {
 	validMode := core.PersistentVolumeFilesystem
 	invalidMode := core.PersistentVolumeMode("fakeVolumeMode")
 	scenarios := map[string]struct {
-		isExpectedFailure      bool
+		isExpectedFailure bool
-		enableReadWriteOncePod bool
+		volume            *core.PersistentVolume
-		volume                 *core.PersistentVolume
 	}{
 		"good-volume": {
 			isExpectedFailure: false,
@@ -253,9 +252,8 @@ func TestValidatePersistentVolumes(t *testing.T) {
 				VolumeMode: &invalidMode,
 			}),
 		},
-		"with-read-write-once-pod-feature-gate-enabled": {
+		"with-read-write-once-pod": {
-			isExpectedFailure:      false,
+			isExpectedFailure: false,
-			enableReadWriteOncePod: true,
 			volume: testVolume("foo", "", core.PersistentVolumeSpec{
 				Capacity: core.ResourceList{
 					core.ResourceName(core.ResourceStorage): resource.MustParse("10G"),
@@ -269,25 +267,8 @@ func TestValidatePersistentVolumes(t *testing.T) {
 				},
 			}),
 		},
-		"with-read-write-once-pod-feature-gate-disabled": {
+		"with-read-write-once-pod-and-others": {
-			isExpectedFailure:      true,
+			isExpectedFailure: true,
-			enableReadWriteOncePod: false,
-			volume: testVolume("foo", "", core.PersistentVolumeSpec{
-				Capacity: core.ResourceList{
-					core.ResourceName(core.ResourceStorage): resource.MustParse("10G"),
-				},
-				AccessModes: []core.PersistentVolumeAccessMode{"ReadWriteOncePod"},
-				PersistentVolumeSource: core.PersistentVolumeSource{
-					HostPath: &core.HostPathVolumeSource{
-						Path: "/foo",
-						Type: newHostPathType(string(core.HostPathDirectory)),
-					},
-				},
-			}),
-		},
-		"with-read-write-once-pod-and-others-feature-gate-enabled": {
-			isExpectedFailure:      true,
-			enableReadWriteOncePod: true,
 			volume: testVolume("foo", "", core.PersistentVolumeSpec{
 				Capacity: core.ResourceList{
 					core.ResourceName(core.ResourceStorage): resource.MustParse("10G"),
@@ -501,8 +482,6 @@ func TestValidatePersistentVolumes(t *testing.T) {
 
 	for name, scenario := range scenarios {
 		t.Run(name, func(t *testing.T) {
-			defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.ReadWriteOncePod, scenario.enableReadWriteOncePod)()
-
 			opts := ValidationOptionsForPersistentVolume(scenario.volume, nil)
 			errs := ValidatePersistentVolume(scenario.volume, opts)
 			if len(errs) == 0 && scenario.isExpectedFailure {
@@ -903,51 +882,17 @@ func TestValidatePersistentVolumeSourceUpdate(t *testing.T) {
 
 func TestValidationOptionsForPersistentVolume(t *testing.T) {
 	tests := map[string]struct {
-		oldPv                  *core.PersistentVolume
+		oldPv                *core.PersistentVolume
-		enableReadWriteOncePod bool
+		expectValidationOpts PersistentVolumeSpecValidationOptions
-		expectValidationOpts   PersistentVolumeSpecValidationOptions
 	}{
 		"nil old pv": {
-			oldPv:                  nil,
+			oldPv:                nil,
-			enableReadWriteOncePod: true,
+			expectValidationOpts: PersistentVolumeSpecValidationOptions{},
-			expectValidationOpts: PersistentVolumeSpecValidationOptions{
-				AllowReadWriteOncePod: true,
-			},
-		},
-		"rwop allowed because feature enabled": {
-			oldPv:                  pvWithAccessModes([]core.PersistentVolumeAccessMode{core.ReadWriteOnce}),
-			enableReadWriteOncePod: true,
-			expectValidationOpts: PersistentVolumeSpecValidationOptions{
-				AllowReadWriteOncePod: true,
-			},
-		},
-		"rwop not allowed because not used and feature disabled": {
-			oldPv:                  pvWithAccessModes([]core.PersistentVolumeAccessMode{core.ReadWriteOnce}),
-			enableReadWriteOncePod: false,
-			expectValidationOpts: PersistentVolumeSpecValidationOptions{
-				AllowReadWriteOncePod: false,
-			},
-		},
-		"rwop allowed because used and feature enabled": {
-			oldPv:                  pvWithAccessModes([]core.PersistentVolumeAccessMode{core.ReadWriteOncePod}),
-			enableReadWriteOncePod: true,
-			expectValidationOpts: PersistentVolumeSpecValidationOptions{
-				AllowReadWriteOncePod: true,
-			},
-		},
-		"rwop allowed because used and feature disabled": {
-			oldPv:                  pvWithAccessModes([]core.PersistentVolumeAccessMode{core.ReadWriteOncePod}),
-			enableReadWriteOncePod: false,
-			expectValidationOpts: PersistentVolumeSpecValidationOptions{
-				AllowReadWriteOncePod: true,
-			},
 		},
 	}
 
 	for name, tc := range tests {
 		t.Run(name, func(t *testing.T) {
-			defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.ReadWriteOncePod, tc.enableReadWriteOncePod)()
-
 			opts := ValidationOptionsForPersistentVolume(nil, tc.oldPv)
 			if opts != tc.expectValidationOpts {
 				t.Errorf("Expected opts: %+v, received: %+v", opts, tc.expectValidationOpts)
@@ -973,29 +918,6 @@ func getCSIVolumeWithSecret(pv *core.PersistentVolume, secret *core.SecretRefere
 
 	return pvCopy
 }
-func pvWithAccessModes(accessModes []core.PersistentVolumeAccessMode) *core.PersistentVolume {
-	return &core.PersistentVolume{
-		Spec: core.PersistentVolumeSpec{
-			AccessModes: accessModes,
-		},
-	}
-}
-
-func pvcWithAccessModes(accessModes []core.PersistentVolumeAccessMode) *core.PersistentVolumeClaim {
-	return &core.PersistentVolumeClaim{
-		Spec: core.PersistentVolumeClaimSpec{
-			AccessModes: accessModes,
-		},
-	}
-}
-
-func pvcTemplateWithAccessModes(accessModes []core.PersistentVolumeAccessMode) *core.PersistentVolumeClaimTemplate {
-	return &core.PersistentVolumeClaimTemplate{
-		Spec: core.PersistentVolumeClaimSpec{
-			AccessModes: accessModes,
-		},
-	}
-}
 
 func pvcWithDataSource(dataSource *core.TypedLocalObjectReference) *core.PersistentVolumeClaim {
 	return &core.PersistentVolumeClaim{
@@ -1594,9 +1516,8 @@ func testValidatePVC(t *testing.T, ephemeral bool) {
 	ten := int64(10)
 
 	scenarios := map[string]struct {
-		isExpectedFailure      bool
+		isExpectedFailure bool
-		enableReadWriteOncePod bool
+		claim             *core.PersistentVolumeClaim
-		claim                  *core.PersistentVolumeClaim
 	}{
 		"good-claim": {
 			isExpectedFailure: false,
@@ -1734,9 +1655,8 @@ func testValidatePVC(t *testing.T, ephemeral bool) {
 				return claim
 			}(),
 		},
-		"with-read-write-once-pod-feature-gate-enabled": {
+		"with-read-write-once-pod": {
-			isExpectedFailure:      false,
+			isExpectedFailure: false,
-			enableReadWriteOncePod: true,
 			claim: testVolumeClaim(goodName, goodNS, core.PersistentVolumeClaimSpec{
 				AccessModes: []core.PersistentVolumeAccessMode{"ReadWriteOncePod"},
 				Resources: core.VolumeResourceRequirements{
@@ -1746,21 +1666,8 @@ func testValidatePVC(t *testing.T, ephemeral bool) {
 				},
 			}),
 		},
-		"with-read-write-once-pod-feature-gate-disabled": {
+		"with-read-write-once-pod-and-others": {
-			isExpectedFailure:      true,
+			isExpectedFailure: true,
-			enableReadWriteOncePod: false,
-			claim: testVolumeClaim(goodName, goodNS, core.PersistentVolumeClaimSpec{
-				AccessModes: []core.PersistentVolumeAccessMode{"ReadWriteOncePod"},
-				Resources: core.VolumeResourceRequirements{
-					Requests: core.ResourceList{
-						core.ResourceName(core.ResourceStorage): resource.MustParse("10G"),
-					},
-				},
-			}),
-		},
-		"with-read-write-once-pod-and-others-feature-gate-enabled": {
-			isExpectedFailure:      true,
-			enableReadWriteOncePod: true,
 			claim: testVolumeClaim(goodName, goodNS, core.PersistentVolumeClaimSpec{
 				AccessModes: []core.PersistentVolumeAccessMode{"ReadWriteOncePod", "ReadWriteMany"},
 				Resources: core.VolumeResourceRequirements{
@@ -1991,8 +1898,6 @@ func testValidatePVC(t *testing.T, ephemeral bool) {
 
 	for name, scenario := range scenarios {
 		t.Run(name, func(t *testing.T) {
-			defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.ReadWriteOncePod, scenario.enableReadWriteOncePod)()
-
 			var errs field.ErrorList
 			if ephemeral {
 				volumes := []core.Volume{{
@@ -2754,47 +2659,12 @@ func TestValidationOptionsForPersistentVolumeClaim(t *testing.T) {
 	invaildAPIGroup := "^invalid"
 
 	tests := map[string]struct {
-		oldPvc                 *core.PersistentVolumeClaim
+		oldPvc               *core.PersistentVolumeClaim
-		enableReadWriteOncePod bool
+		expectValidationOpts PersistentVolumeClaimSpecValidationOptions
-		expectValidationOpts   PersistentVolumeClaimSpecValidationOptions
 	}{
 		"nil pv": {
-			oldPvc:                 nil,
+			oldPvc: nil,
-			enableReadWriteOncePod: true,
 			expectValidationOpts: PersistentVolumeClaimSpecValidationOptions{
-				AllowReadWriteOncePod:             true,
-				EnableRecoverFromExpansionFailure: false,
-			},
-		},
-		"rwop allowed because feature enabled": {
-			oldPvc:                 pvcWithAccessModes([]core.PersistentVolumeAccessMode{core.ReadWriteOnce}),
-			enableReadWriteOncePod: true,
-			expectValidationOpts: PersistentVolumeClaimSpecValidationOptions{
-				AllowReadWriteOncePod:             true,
-				EnableRecoverFromExpansionFailure: false,
-			},
-		},
-		"rwop not allowed because not used and feature disabled": {
-			oldPvc:                 pvcWithAccessModes([]core.PersistentVolumeAccessMode{core.ReadWriteOnce}),
-			enableReadWriteOncePod: false,
-			expectValidationOpts: PersistentVolumeClaimSpecValidationOptions{
-				AllowReadWriteOncePod:             false,
-				EnableRecoverFromExpansionFailure: false,
-			},
-		},
-		"rwop allowed because used and feature enabled": {
-			oldPvc:                 pvcWithAccessModes([]core.PersistentVolumeAccessMode{core.ReadWriteOncePod}),
-			enableReadWriteOncePod: true,
-			expectValidationOpts: PersistentVolumeClaimSpecValidationOptions{
-				AllowReadWriteOncePod:             true,
-				EnableRecoverFromExpansionFailure: false,
-			},
-		},
-		"rwop allowed because used and feature disabled": {
-			oldPvc:                 pvcWithAccessModes([]core.PersistentVolumeAccessMode{core.ReadWriteOncePod}),
-			enableReadWriteOncePod: false,
-			expectValidationOpts: PersistentVolumeClaimSpecValidationOptions{
-				AllowReadWriteOncePod:             true,
 				EnableRecoverFromExpansionFailure: false,
 			},
 		},
@@ -2814,8 +2684,6 @@ func TestValidationOptionsForPersistentVolumeClaim(t *testing.T) {
 
 	for name, tc := range tests {
 		t.Run(name, func(t *testing.T) {
-			defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.ReadWriteOncePod, tc.enableReadWriteOncePod)()
-
 			opts := ValidationOptionsForPersistentVolumeClaim(nil, tc.oldPvc)
 			if opts != tc.expectValidationOpts {
 				t.Errorf("Expected opts: %+v, received: %+v", tc.expectValidationOpts, opts)
@@ -2826,51 +2694,17 @@ func TestValidationOptionsForPersistentVolumeClaim(t *testing.T) {
 
 func TestValidationOptionsForPersistentVolumeClaimTemplate(t *testing.T) {
 	tests := map[string]struct {
-		oldPvcTemplate         *core.PersistentVolumeClaimTemplate
+		oldPvcTemplate       *core.PersistentVolumeClaimTemplate
-		enableReadWriteOncePod bool
+		expectValidationOpts PersistentVolumeClaimSpecValidationOptions
-		expectValidationOpts   PersistentVolumeClaimSpecValidationOptions
 	}{
 		"nil pv": {
-			oldPvcTemplate:         nil,
+			oldPvcTemplate:       nil,
-			enableReadWriteOncePod: true,
+			expectValidationOpts: PersistentVolumeClaimSpecValidationOptions{},
-			expectValidationOpts: PersistentVolumeClaimSpecValidationOptions{
-				AllowReadWriteOncePod: true,
-			},
-		},
-		"rwop allowed because feature enabled": {
-			oldPvcTemplate:         pvcTemplateWithAccessModes([]core.PersistentVolumeAccessMode{core.ReadWriteOnce}),
-			enableReadWriteOncePod: true,
-			expectValidationOpts: PersistentVolumeClaimSpecValidationOptions{
-				AllowReadWriteOncePod: true,
-			},
-		},
-		"rwop not allowed because not used and feature disabled": {
-			oldPvcTemplate:         pvcTemplateWithAccessModes([]core.PersistentVolumeAccessMode{core.ReadWriteOnce}),
-			enableReadWriteOncePod: false,
-			expectValidationOpts: PersistentVolumeClaimSpecValidationOptions{
-				AllowReadWriteOncePod: false,
-			},
-		},
-		"rwop allowed because used and feature enabled": {
-			oldPvcTemplate:         pvcTemplateWithAccessModes([]core.PersistentVolumeAccessMode{core.ReadWriteOncePod}),
-			enableReadWriteOncePod: true,
-			expectValidationOpts: PersistentVolumeClaimSpecValidationOptions{
-				AllowReadWriteOncePod: true,
-			},
-		},
-		"rwop allowed because used and feature disabled": {
-			oldPvcTemplate:         pvcTemplateWithAccessModes([]core.PersistentVolumeAccessMode{core.ReadWriteOncePod}),
-			enableReadWriteOncePod: false,
-			expectValidationOpts: PersistentVolumeClaimSpecValidationOptions{
-				AllowReadWriteOncePod: true,
-			},
 		},
 	}
 
 	for name, tc := range tests {
 		t.Run(name, func(t *testing.T) {
-			defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.ReadWriteOncePod, tc.enableReadWriteOncePod)()
-
 			opts := ValidationOptionsForPersistentVolumeClaimTemplate(nil, tc.oldPvcTemplate)
 			if opts != tc.expectValidationOpts {
 				t.Errorf("Expected opts: %+v, received: %+v", opts, tc.expectValidationOpts)

pkg/features/kube_features.go

@@ -670,6 +670,7 @@ const (
 	// kep: https://kep.k8s.io/2485
 	// alpha: v1.22
 	// beta: v1.27
+	// GA: v1.29
 	//
 	// Enables usage of the ReadWriteOncePod PersistentVolume access mode.
 	ReadWriteOncePod featuregate.Feature = "ReadWriteOncePod"
@@ -1046,7 +1047,7 @@ var defaultKubernetesFeatureGates = map[featuregate.Feature]featuregate.FeatureS
 
 	QOSReserved: {Default: false, PreRelease: featuregate.Alpha},
 
-	ReadWriteOncePod: {Default: true, PreRelease: featuregate.Beta},
+	ReadWriteOncePod: {Default: true, PreRelease: featuregate.GA, LockToDefault: true}, // remove in 1.31
 
 	RecoverVolumeExpansionFailure: {Default: false, PreRelease: featuregate.Alpha},
 

pkg/kubelet/volumemanager/cache/actual_state_of_world_test.go

@@ -877,7 +877,6 @@ func Test_MarkDeviceAsMounted_Positive_NewVolume(t *testing.T) {
 // Verifies volume/pod combo exist using PodExistsInVolume()
 func Test_AddPodToVolume_Positive_SELinux(t *testing.T) {
 	// Arrange
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.ReadWriteOncePod, true)()
 	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.SELinuxMountReadWriteOncePod, true)()
 	volumePluginMgr, plugin := volumetesting.GetTestKubeletVolumePluginMgr(t)
 	asw := NewActualStateOfWorld("mynode" /* nodeName */, volumePluginMgr)
@@ -956,7 +955,6 @@ func Test_AddPodToVolume_Positive_SELinux(t *testing.T) {
 // Verifies newly added volume exists in GetGloballyMountedVolumes()
 func Test_MarkDeviceAsMounted_Positive_SELinux(t *testing.T) {
 	// Arrange
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.ReadWriteOncePod, true)()
 	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.SELinuxMountReadWriteOncePod, true)()
 	volumePluginMgr, plugin := volumetesting.GetTestKubeletVolumePluginMgr(t)
 	asw := NewActualStateOfWorld("mynode" /* nodeName */, volumePluginMgr)

pkg/kubelet/volumemanager/cache/desired_state_of_world_test.go

@@ -609,7 +609,6 @@ func Test_AddPodToVolume_WithEmptyDirSizeLimit(t *testing.T) {
 // Verifies newly added pod/volume exists via PodExistsInVolume() without SELinux context
 // VolumeExists() and GetVolumesToMount() and no errors.
 func Test_AddPodToVolume_Positive_SELinuxNoRWOP(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.ReadWriteOncePod, true)()
 	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.SELinuxMountReadWriteOncePod, true)()
 	// Arrange
 	plugins := []volume.VolumePlugin{
@@ -690,7 +689,6 @@ func Test_AddPodToVolume_Positive_SELinuxNoRWOP(t *testing.T) {
 // Verifies newly added pod/volume exists via PodExistsInVolume() without SELinux context
 // VolumeExists() and GetVolumesToMount() and no errors.
 func Test_AddPodToVolume_Positive_NoSELinuxPlugin(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.ReadWriteOncePod, true)()
 	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.SELinuxMountReadWriteOncePod, true)()
 	// Arrange
 	plugins := []volume.VolumePlugin{
@@ -772,7 +770,6 @@ func Test_AddPodToVolume_Positive_NoSELinuxPlugin(t *testing.T) {
 // Verifies newly added pod/volume exists via PodExistsInVolume()
 // VolumeExists() and GetVolumesToMount() and no errors.
 func Test_AddPodToVolume_Positive_ExistingPodSameSELinuxRWOP(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.ReadWriteOncePod, true)()
 	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.SELinuxMountReadWriteOncePod, true)()
 	// Arrange
 	plugins := []volume.VolumePlugin{
@@ -873,7 +870,6 @@ func Test_AddPodToVolume_Positive_ExistingPodSameSELinuxRWOP(t *testing.T) {
 // Verifies newly added pod/volume exists via PodExistsInVolume()
 // VolumeExists() and GetVolumesToMount() and no errors.
 func Test_AddPodToVolume_Negative_ExistingPodDifferentSELinuxRWOP(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.ReadWriteOncePod, true)()
 	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.SELinuxMountReadWriteOncePod, true)()
 	// Arrange
 	plugins := []volume.VolumePlugin{

pkg/kubelet/volumemanager/populator/desired_state_of_world_populator_test.go

@@ -1189,7 +1189,6 @@ func TestCheckVolumeFSResize(t *testing.T) {
 }
 
 func TestCheckVolumeSELinux(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.ReadWriteOncePod, true)()
 	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.SELinuxMountReadWriteOncePod, true)()
 	fullOpts := &v1.SELinuxOptions{
 		User:  "system_u",

pkg/scheduler/framework/plugins/feature/feature.go

@@ -21,7 +21,6 @@ package feature
 // the internal k8s features pkg.
 type Features struct {
 	EnableDynamicResourceAllocation              bool
-	EnableReadWriteOncePod                       bool
 	EnableVolumeCapacityPriority                 bool
 	EnableMinDomainsInPodTopologySpread          bool
 	EnableNodeInclusionPolicyInPodTopologySpread bool

pkg/scheduler/framework/plugins/registry.go

@@ -47,7 +47,6 @@ import (
 func NewInTreeRegistry() runtime.Registry {
 	fts := plfeature.Features{
 		EnableDynamicResourceAllocation:              feature.DefaultFeatureGate.Enabled(features.DynamicResourceAllocation),
-		EnableReadWriteOncePod:                       feature.DefaultFeatureGate.Enabled(features.ReadWriteOncePod),
 		EnableVolumeCapacityPriority:                 feature.DefaultFeatureGate.Enabled(features.VolumeCapacityPriority),
 		EnableMinDomainsInPodTopologySpread:          feature.DefaultFeatureGate.Enabled(features.MinDomainsInPodTopologySpread),
 		EnableNodeInclusionPolicyInPodTopologySpread: feature.DefaultFeatureGate.Enabled(features.NodeInclusionPolicyInPodTopologySpread),

pkg/scheduler/framework/plugins/volumerestrictions/volume_restrictions.go

@@ -33,9 +33,8 @@ import (
 
 // VolumeRestrictions is a plugin that checks volume restrictions.
 type VolumeRestrictions struct {
-	pvcLister              corelisters.PersistentVolumeClaimLister
+	pvcLister    corelisters.PersistentVolumeClaimLister
-	sharedLister           framework.SharedLister
+	sharedLister framework.SharedLister
-	enableReadWriteOncePod bool
 }
 
 var _ framework.PreFilterPlugin = &VolumeRestrictions{}
@@ -169,13 +168,6 @@ func (pl *VolumeRestrictions) PreFilter(ctx context.Context, cycleState *framewo
 		}
 	}
 
-	if !pl.enableReadWriteOncePod {
-		if needsCheck {
-			return nil, nil
-		}
-		return nil, framework.NewStatus(framework.Skip)
-	}
-
 	pvcs, err := pl.readWriteOncePodPVCsForPod(ctx, pod)
 	if err != nil {
 		if apierrors.IsNotFound(err) {
@@ -198,9 +190,6 @@ func (pl *VolumeRestrictions) PreFilter(ctx context.Context, cycleState *framewo
 
 // AddPod from pre-computed data in cycleState.
 func (pl *VolumeRestrictions) AddPod(ctx context.Context, cycleState *framework.CycleState, podToSchedule *v1.Pod, podInfoToAdd *framework.PodInfo, nodeInfo *framework.NodeInfo) *framework.Status {
-	if !pl.enableReadWriteOncePod {
-		return nil
-	}
 	state, err := getPreFilterState(cycleState)
 	if err != nil {
 		return framework.AsStatus(err)
@@ -211,9 +200,6 @@ func (pl *VolumeRestrictions) AddPod(ctx context.Context, cycleState *framework.
 
 // RemovePod from pre-computed data in cycleState.
 func (pl *VolumeRestrictions) RemovePod(ctx context.Context, cycleState *framework.CycleState, podToSchedule *v1.Pod, podInfoToRemove *framework.PodInfo, nodeInfo *framework.NodeInfo) *framework.Status {
-	if !pl.enableReadWriteOncePod {
-		return nil
-	}
 	state, err := getPreFilterState(cycleState)
 	if err != nil {
 		return framework.AsStatus(err)
@@ -321,9 +307,6 @@ func (pl *VolumeRestrictions) Filter(ctx context.Context, cycleState *framework.
 	if !satisfyVolumeConflicts(pod, nodeInfo) {
 		return framework.NewStatus(framework.Unschedulable, ErrReasonDiskConflict)
 	}
-	if !pl.enableReadWriteOncePod {
-		return nil
-	}
 	state, err := getPreFilterState(cycleState)
 	if err != nil {
 		return framework.AsStatus(err)
@@ -354,8 +337,7 @@ func New(_ context.Context, _ runtime.Object, handle framework.Handle, fts featu
 	sharedLister := handle.SnapshotSharedLister()
 
 	return &VolumeRestrictions{
-		pvcLister:              pvcLister,
+		pvcLister:    pvcLister,
-		sharedLister:           sharedLister,
+		sharedLister: sharedLister,
-		enableReadWriteOncePod: fts.EnableReadWriteOncePod,
 	}, nil
 }

pkg/scheduler/framework/plugins/volumerestrictions/volume_restrictions_test.go

@@ -24,9 +24,6 @@ import (
 	v1 "k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/runtime"
-	utilfeature "k8s.io/apiserver/pkg/util/feature"
-	featuregatetesting "k8s.io/component-base/featuregate/testing"
-	"k8s.io/kubernetes/pkg/features"
 	"k8s.io/kubernetes/pkg/scheduler/apis/config"
 	"k8s.io/kubernetes/pkg/scheduler/framework"
 	"k8s.io/kubernetes/pkg/scheduler/framework/plugins/feature"
@@ -355,8 +352,6 @@ func TestISCSIDiskConflicts(t *testing.T) {
 }
 
 func TestAccessModeConflicts(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.ReadWriteOncePod, true)()
-
 	// Required for querying lister for PVCs in the same namespace.
 	podWithOnePVC := st.MakePod().Name("pod-with-one-pvc").Namespace(metav1.NamespaceDefault).PVC("claim-with-rwop-1").Node("node-1").Obj()
 	podWithTwoPVCs := st.MakePod().Name("pod-with-two-pvcs").Namespace(metav1.NamespaceDefault).PVC("claim-with-rwop-1").PVC("claim-with-rwop-2").Node("node-1").Obj()
@@ -401,81 +396,64 @@ func TestAccessModeConflicts(t *testing.T) {
 	}
 
 	tests := []struct {
-		name                   string
+		name                string
-		pod                    *v1.Pod
+		pod                 *v1.Pod
-		nodeInfo               *framework.NodeInfo
+		nodeInfo            *framework.NodeInfo
-		existingPods           []*v1.Pod
+		existingPods        []*v1.Pod
-		existingNodes          []*v1.Node
+		existingNodes       []*v1.Node
-		existingPVCs           []*v1.PersistentVolumeClaim
+		existingPVCs        []*v1.PersistentVolumeClaim
-		enableReadWriteOncePod bool
+		preFilterWantStatus *framework.Status
-		preFilterWantStatus    *framework.Status
+		wantStatus          *framework.Status
-		wantStatus             *framework.Status
 	}{
 		{
-			name:                   "nothing",
+			name:                "nothing",
-			pod:                    &v1.Pod{},
+			pod:                 &v1.Pod{},
-			nodeInfo:               framework.NewNodeInfo(),
+			nodeInfo:            framework.NewNodeInfo(),
-			existingPods:           []*v1.Pod{},
+			existingPods:        []*v1.Pod{},
-			existingNodes:          []*v1.Node{},
+			existingNodes:       []*v1.Node{},
-			existingPVCs:           []*v1.PersistentVolumeClaim{},
+			existingPVCs:        []*v1.PersistentVolumeClaim{},
-			enableReadWriteOncePod: true,
+			preFilterWantStatus: framework.NewStatus(framework.Skip),
-			preFilterWantStatus:    framework.NewStatus(framework.Skip),
+			wantStatus:          nil,
-			wantStatus:             nil,
 		},
 		{
-			name:                   "nothing, ReadWriteOncePod disabled",
+			name:                "failed to get PVC",
-			pod:                    &v1.Pod{},
+			pod:                 podWithOnePVC,
-			nodeInfo:               framework.NewNodeInfo(),
+			nodeInfo:            framework.NewNodeInfo(),
-			existingPods:           []*v1.Pod{},
+			existingPods:        []*v1.Pod{},
-			existingNodes:          []*v1.Node{},
+			existingNodes:       []*v1.Node{},
-			existingPVCs:           []*v1.PersistentVolumeClaim{},
+			existingPVCs:        []*v1.PersistentVolumeClaim{},
-			enableReadWriteOncePod: false,
+			preFilterWantStatus: framework.NewStatus(framework.UnschedulableAndUnresolvable, "persistentvolumeclaim \"claim-with-rwop-1\" not found"),
-			preFilterWantStatus:    framework.NewStatus(framework.Skip),
+			wantStatus:          nil,
-			wantStatus:             nil,
 		},
 		{
-			name:                   "failed to get PVC",
+			name:                "no access mode conflict",
-			pod:                    podWithOnePVC,
+			pod:                 podWithOnePVC,
-			nodeInfo:               framework.NewNodeInfo(),
+			nodeInfo:            framework.NewNodeInfo(podWithReadWriteManyPVC),
-			existingPods:           []*v1.Pod{},
+			existingPods:        []*v1.Pod{podWithReadWriteManyPVC},
-			existingNodes:          []*v1.Node{},
+			existingNodes:       []*v1.Node{node},
-			existingPVCs:           []*v1.PersistentVolumeClaim{},
+			existingPVCs:        []*v1.PersistentVolumeClaim{readWriteOncePodPVC1, readWriteManyPVC},
-			enableReadWriteOncePod: true,
+			preFilterWantStatus: framework.NewStatus(framework.Skip),
-			preFilterWantStatus:    framework.NewStatus(framework.UnschedulableAndUnresolvable, "persistentvolumeclaim \"claim-with-rwop-1\" not found"),
+			wantStatus:          nil,
-			wantStatus:             nil,
 		},
 		{
-			name:                   "no access mode conflict",
+			name:                "access mode conflict, unschedulable",
-			pod:                    podWithOnePVC,
+			pod:                 podWithOneConflict,
-			nodeInfo:               framework.NewNodeInfo(podWithReadWriteManyPVC),
+			nodeInfo:            framework.NewNodeInfo(podWithOnePVC, podWithReadWriteManyPVC),
-			existingPods:           []*v1.Pod{podWithReadWriteManyPVC},
+			existingPods:        []*v1.Pod{podWithOnePVC, podWithReadWriteManyPVC},
-			existingNodes:          []*v1.Node{node},
+			existingNodes:       []*v1.Node{node},
-			existingPVCs:           []*v1.PersistentVolumeClaim{readWriteOncePodPVC1, readWriteManyPVC},
+			existingPVCs:        []*v1.PersistentVolumeClaim{readWriteOncePodPVC1, readWriteManyPVC},
-			enableReadWriteOncePod: true,
+			preFilterWantStatus: nil,
-			preFilterWantStatus:    framework.NewStatus(framework.Skip),
+			wantStatus:          framework.NewStatus(framework.Unschedulable, ErrReasonReadWriteOncePodConflict),
-			wantStatus:             nil,
 		},
 		{
-			name:                   "access mode conflict, unschedulable",
+			name:                "two conflicts, unschedulable",
-			pod:                    podWithOneConflict,
+			pod:                 podWithTwoConflicts,
-			nodeInfo:               framework.NewNodeInfo(podWithOnePVC, podWithReadWriteManyPVC),
+			nodeInfo:            framework.NewNodeInfo(podWithTwoPVCs, podWithReadWriteManyPVC),
-			existingPods:           []*v1.Pod{podWithOnePVC, podWithReadWriteManyPVC},
+			existingPods:        []*v1.Pod{podWithTwoPVCs, podWithReadWriteManyPVC},
-			existingNodes:          []*v1.Node{node},
+			existingNodes:       []*v1.Node{node},
-			existingPVCs:           []*v1.PersistentVolumeClaim{readWriteOncePodPVC1, readWriteManyPVC},
+			existingPVCs:        []*v1.PersistentVolumeClaim{readWriteOncePodPVC1, readWriteOncePodPVC2, readWriteManyPVC},
-			enableReadWriteOncePod: true,
+			preFilterWantStatus: nil,
-			preFilterWantStatus:    nil,
+			wantStatus:          framework.NewStatus(framework.Unschedulable, ErrReasonReadWriteOncePodConflict),
-			wantStatus:             framework.NewStatus(framework.Unschedulable, ErrReasonReadWriteOncePodConflict),
-		},
-		{
-			name:                   "two conflicts, unschedulable",
-			pod:                    podWithTwoConflicts,
-			nodeInfo:               framework.NewNodeInfo(podWithTwoPVCs, podWithReadWriteManyPVC),
-			existingPods:           []*v1.Pod{podWithTwoPVCs, podWithReadWriteManyPVC},
-			existingNodes:          []*v1.Node{node},
-			existingPVCs:           []*v1.PersistentVolumeClaim{readWriteOncePodPVC1, readWriteOncePodPVC2, readWriteManyPVC},
-			enableReadWriteOncePod: true,
-			preFilterWantStatus:    nil,
-			wantStatus:             framework.NewStatus(framework.Unschedulable, ErrReasonReadWriteOncePodConflict),
 		},
 	}
 
@@ -483,7 +461,7 @@ func TestAccessModeConflicts(t *testing.T) {
 		t.Run(test.name, func(t *testing.T) {
 			ctx, cancel := context.WithCancel(context.Background())
 			defer cancel()
-			p := newPluginWithListers(ctx, t, test.existingPods, test.existingNodes, test.existingPVCs, test.enableReadWriteOncePod)
+			p := newPluginWithListers(ctx, t, test.existingPods, test.existingNodes, test.existingPVCs)
 			cycleState := framework.NewCycleState()
 			_, preFilterGotStatus := p.(framework.PreFilterPlugin).PreFilter(ctx, cycleState, test.pod)
 			if diff := cmp.Diff(test.preFilterWantStatus, preFilterGotStatus); diff != "" {
@@ -501,14 +479,12 @@ func TestAccessModeConflicts(t *testing.T) {
 }
 
 func newPlugin(ctx context.Context, t *testing.T) framework.Plugin {
-	return newPluginWithListers(ctx, t, nil, nil, nil, true)
+	return newPluginWithListers(ctx, t, nil, nil, nil)
 }
 
-func newPluginWithListers(ctx context.Context, t *testing.T, pods []*v1.Pod, nodes []*v1.Node, pvcs []*v1.PersistentVolumeClaim, enableReadWriteOncePod bool) framework.Plugin {
+func newPluginWithListers(ctx context.Context, t *testing.T, pods []*v1.Pod, nodes []*v1.Node, pvcs []*v1.PersistentVolumeClaim) framework.Plugin {
 	pluginFactory := func(ctx context.Context, plArgs runtime.Object, fh framework.Handle) (framework.Plugin, error) {
-		return New(ctx, plArgs, fh, feature.Features{
+		return New(ctx, plArgs, fh, feature.Features{})
-			EnableReadWriteOncePod: enableReadWriteOncePod,
-		})
 	}
 	snapshot := cache.NewSnapshot(pods, nodes)
 

pkg/volume/csi/csi_plugin_test.go

@@ -370,7 +370,6 @@ func TestPluginConstructVolumeSpec(t *testing.T) {
 
 	for _, tc := range testCases {
 		t.Run(tc.name, func(t *testing.T) {
-			defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.ReadWriteOncePod, tc.seLinuxMountEnabled)()
 			defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.SELinuxMountReadWriteOncePod, tc.seLinuxMountEnabled)()
 
 			mounter, err := plug.NewMounter(

pkg/volume/util/operationexecutor/operation_generator.go

@@ -580,8 +580,7 @@ func (og *operationGenerator) GenerateMountVolumeFunc(
 		}
 
 		// Enforce ReadWriteOncePod access mode if it is the only one present. This is also enforced during scheduling.
-		if utilfeature.DefaultFeatureGate.Enabled(features.ReadWriteOncePod) &&
+		if actualStateOfWorld.IsVolumeMountedElsewhere(volumeToMount.VolumeName, volumeToMount.PodName) &&
-			actualStateOfWorld.IsVolumeMountedElsewhere(volumeToMount.VolumeName, volumeToMount.PodName) &&
 			// Because we do not know what access mode the pod intends to use if there are multiple.
 			len(volumeToMount.VolumeSpec.PersistentVolume.Spec.AccessModes) == 1 &&
 			v1helper.ContainsAccessMode(volumeToMount.VolumeSpec.PersistentVolume.Spec.AccessModes, v1.ReadWriteOncePod) {
@@ -1071,8 +1070,7 @@ func (og *operationGenerator) GenerateMapVolumeFunc(
 		migrated := getMigratedStatusBySpec(volumeToMount.VolumeSpec)
 
 		// Enforce ReadWriteOncePod access mode. This is also enforced during scheduling.
-		if utilfeature.DefaultFeatureGate.Enabled(features.ReadWriteOncePod) &&
+		if actualStateOfWorld.IsVolumeMountedElsewhere(volumeToMount.VolumeName, volumeToMount.PodName) &&
-			actualStateOfWorld.IsVolumeMountedElsewhere(volumeToMount.VolumeName, volumeToMount.PodName) &&
 			// Because we do not know what access mode the pod intends to use if there are multiple.
 			len(volumeToMount.VolumeSpec.PersistentVolume.Spec.AccessModes) == 1 &&
 			v1helper.ContainsAccessMode(volumeToMount.VolumeSpec.PersistentVolume.Spec.AccessModes, v1.ReadWriteOncePod) {

pkg/volume/util/selinux.go

@@ -168,10 +168,6 @@ func SupportsSELinuxContextMount(volumeSpec *volume.Spec, volumePluginMgr *volum
 
 // VolumeSupportsSELinuxMount returns true if given volume access mode can support mount with SELinux mount options.
 func VolumeSupportsSELinuxMount(volumeSpec *volume.Spec) bool {
-	// Right now, SELinux mount is supported only for ReadWriteOncePod volumes.
-	if !utilfeature.DefaultFeatureGate.Enabled(features.ReadWriteOncePod) {
-		return false
-	}
 	if !utilfeature.DefaultFeatureGate.Enabled(features.SELinuxMountReadWriteOncePod) {
 		return false
 	}

pkg/volume/util/util_test.go

@@ -616,7 +616,6 @@ func TestMakeAbsolutePath(t *testing.T) {
 }
 
 func TestGetPodVolumeNames(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.ReadWriteOncePod, true)()
 	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.SELinuxMountReadWriteOncePod, true)()
 	tests := []struct {
 		name                    string

test/integration/scheduler/filters/filters_test.go

@@ -1554,11 +1554,10 @@ var (
 
 func TestUnschedulablePodBecomesSchedulable(t *testing.T) {
 	tests := []struct {
-		name                   string
+		name   string
-		init                   func(kubernetes.Interface, string) error
+		init   func(kubernetes.Interface, string) error
-		pod                    *testutils.PausePodConfig
+		pod    *testutils.PausePodConfig
-		update                 func(kubernetes.Interface, string) error
+		update func(kubernetes.Interface, string) error
-		enableReadWriteOncePod bool
 	}{
 		{
 			name: "node gets added",
@@ -1765,13 +1764,10 @@ func TestUnschedulablePodBecomesSchedulable(t *testing.T) {
 			update: func(cs kubernetes.Interface, ns string) error {
 				return deletePod(cs, "pod-to-be-deleted", ns)
 			},
-			enableReadWriteOncePod: true,
 		},
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
-			defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.ReadWriteOncePod, tt.enableReadWriteOncePod)()
-
 			testCtx := initTest(t, "scheduler-informer")
 
 			if tt.init != nil {

test/integration/scheduler/preemption/preemption_test.go

@@ -1648,8 +1648,6 @@ func TestPreferNominatedNode(t *testing.T) {
 // TestReadWriteOncePodPreemption tests preemption scenarios for pods with
 // ReadWriteOncePod PVCs.
 func TestReadWriteOncePodPreemption(t *testing.T) {
-	defer featuregatetesting.SetFeatureGateDuringTest(t, feature.DefaultFeatureGate, features.ReadWriteOncePod, true)()
-
 	cfg := configtesting.V1ToInternalWithDefaults(t, configv1.KubeSchedulerConfiguration{
 		Profiles: []configv1.KubeSchedulerProfile{{
 			SchedulerName: pointer.StringPtr(v1.DefaultSchedulerName),