HugePage changes in API and server

pkg/api/helper/helpers.go

@@ -31,6 +31,30 @@ import (
 	"k8s.io/kubernetes/pkg/api"
 )
 
+// IsHugePageResourceName returns true if the resource name has the huge page
+// resource prefix.
+func IsHugePageResourceName(name api.ResourceName) bool {
+	return strings.HasPrefix(string(name), api.ResourceHugePagesPrefix)
+}
+
+// HugePageResourceName returns a ResourceName with the canonical hugepage
+// prefix prepended for the specified page size.  The page size is converted
+// to its canonical representation.
+func HugePageResourceName(pageSize resource.Quantity) api.ResourceName {
+	return api.ResourceName(fmt.Sprintf("%s%s", api.ResourceHugePagesPrefix, pageSize.String()))
+}
+
+// HugePageSizeFromResourceName returns the page size for the specified huge page
+// resource name.  If the specified input is not a valid huge page resource name
+// an error is returned.
+func HugePageSizeFromResourceName(name api.ResourceName) (resource.Quantity, error) {
+	if !IsHugePageResourceName(name) {
+		return resource.Quantity{}, fmt.Errorf("resource name: %s is not valid hugepage name", name)
+	}
+	pageSize := strings.TrimPrefix(string(name), api.ResourceHugePagesPrefix)
+	return resource.ParseQuantity(pageSize)
+}
+
 // NonConvertibleFields iterates over the provided map and filters out all but
 // any keys with the "non-convertible.kubernetes.io" prefix.
 func NonConvertibleFields(annotations map[string]string) map[string]string {
@@ -113,7 +137,7 @@ var standardContainerResources = sets.NewString(
 // IsStandardContainerResourceName returns true if the container can make a resource request
 // for the specified resource
 func IsStandardContainerResourceName(str string) bool {
-	return standardContainerResources.Has(str)
+	return standardContainerResources.Has(str) || IsHugePageResourceName(api.ResourceName(str))
 }
 
 // IsExtendedResourceName returns true if the resource name is not in the
@@ -153,6 +177,7 @@ var overcommitBlacklist = sets.NewString(string(api.ResourceNvidiaGPU))
 // namespace and not blacklisted.
 func IsOvercommitAllowed(name api.ResourceName) bool {
 	return IsDefaultNamespaceResource(name) &&
+		!IsHugePageResourceName(name) &&
 		!overcommitBlacklist.Has(string(name))
 }
 
@@ -220,7 +245,7 @@ var standardResources = sets.NewString(
 
 // IsStandardResourceName returns true if the resource is known to the system
 func IsStandardResourceName(str string) bool {
-	return standardResources.Has(str)
+	return standardResources.Has(str) || IsHugePageResourceName(api.ResourceName(str))
 }
 
 var integerResources = sets.NewString(