Remove field disablePreemption from internal scheduler codebase

Author: Huang-Wei

pkg/scheduler/core/extender_test.go

@@ -286,7 +286,6 @@ func TestGenericSchedulerWithExtenders(t *testing.T) {
 				emptySnapshot,
 				extenders,
 				informerFactory.Core().V1().PersistentVolumeClaims().Lister(),
-				false,
 				schedulerapi.DefaultPercentageOfNodesToScore)
 			podIgnored := &v1.Pod{}
 			result, err := scheduler.Schedule(context.Background(), prof, framework.NewCycleState(), podIgnored)

pkg/scheduler/core/generic_scheduler.go

@@ -120,7 +120,6 @@ type genericScheduler struct {
 	extenders                []framework.Extender
 	nodeInfoSnapshot         *internalcache.Snapshot
 	pvcLister                corelisters.PersistentVolumeClaimLister
-	disablePreemption        bool
 	percentageOfNodesToScore int32
 	nextStartNodeIndex       int
 }
@@ -630,14 +629,12 @@ func NewGenericScheduler(
 	nodeInfoSnapshot *internalcache.Snapshot,
 	extenders []framework.Extender,
 	pvcLister corelisters.PersistentVolumeClaimLister,
-	disablePreemption bool,
 	percentageOfNodesToScore int32) ScheduleAlgorithm {
 	return &genericScheduler{
 		cache:                    cache,
 		extenders:                extenders,
 		nodeInfoSnapshot:         nodeInfoSnapshot,
 		pvcLister:                pvcLister,
-		disablePreemption:        disablePreemption,
 		percentageOfNodesToScore: percentageOfNodesToScore,
 	}
 }

pkg/scheduler/core/generic_scheduler_test.go

@@ -750,7 +750,6 @@ func TestGenericScheduler(t *testing.T) {
 				snapshot,
 				[]framework.Extender{},
 				pvcLister,
-				false,
 				schedulerapi.DefaultPercentageOfNodesToScore)
 			result, err := scheduler.Schedule(context.Background(), prof, framework.NewCycleState(), test.pod)
 			if !reflect.DeepEqual(err, test.wErr) {
@@ -776,7 +775,7 @@ func makeScheduler(nodes []*v1.Node) *genericScheduler {
 	s := NewGenericScheduler(
 		cache,
 		emptySnapshot,
-		nil, nil, false,
+		nil, nil,
 		schedulerapi.DefaultPercentageOfNodesToScore)
 	cache.UpdateSnapshot(s.(*genericScheduler).nodeInfoSnapshot)
 	return s.(*genericScheduler)
@@ -1071,7 +1070,6 @@ func TestZeroRequest(t *testing.T) {
 				emptySnapshot,
 				[]framework.Extender{},
 				nil,
-				false,
 				schedulerapi.DefaultPercentageOfNodesToScore).(*genericScheduler)
 			scheduler.nodeInfoSnapshot = snapshot
 

pkg/scheduler/factory.go

@@ -68,9 +68,6 @@ type Configurator struct {
 
 	schedulerCache internalcache.Cache
 
-	// Disable pod preemption or not.
-	disablePreemption bool
-
 	// Always check all predicates even if the middle of one predicate fails.
 	alwaysCheckAllPredicates bool
 
@@ -184,7 +181,6 @@ func (c *Configurator) create() (*Scheduler, error) {
 		c.nodeInfoSnapshot,
 		extenders,
 		c.informerFactory.Core().V1().PersistentVolumeClaims().Lister(),
-		c.disablePreemption,
 		c.percentageOfNodesToScore,
 	)
 

pkg/scheduler/factory_test.go

@@ -52,7 +52,6 @@ import (
 )
 
 const (
-	disablePodPreemption             = false
 	podInitialBackoffDurationSeconds = 1
 	podMaxBackoffDurationSeconds     = 10
 	testSchedulerName                = "test-scheduler"
@@ -453,7 +452,6 @@ func newConfigFactoryWithFrameworkRegistry(
 	return &Configurator{
 		client:                   client,
 		informerFactory:          informerFactory,
-		disablePreemption:        disablePodPreemption,
 		percentageOfNodesToScore: schedulerapi.DefaultPercentageOfNodesToScore,
 		podInitialBackoffSeconds: podInitialBackoffDurationSeconds,
 		podMaxBackoffSeconds:     podMaxBackoffDurationSeconds,

pkg/scheduler/scheduler_test.go

@@ -825,7 +825,6 @@ func setupTestScheduler(queuedPodStore *clientcache.FIFO, scache internalcache.C
 		internalcache.NewEmptySnapshot(),
 		[]framework.Extender{},
 		informerFactory.Core().V1().PersistentVolumeClaims().Lister(),
-		false,
 		schedulerapi.DefaultPercentageOfNodesToScore,
 	)
 
@@ -1174,7 +1173,6 @@ func TestSchedulerBinding(t *testing.T) {
 				nil,
 				test.extenders,
 				nil,
-				false,
 				0,
 			)
 			sched := Scheduler{