// above.
		hasQuotas, err := fsquota.SupportsQuotas(ed.mounter, dir)
		if err != nil {
			klog.V(3).Infof("Unable to check for quota support on %s: %s", dir, err.Error())
		} else if hasQuotas {
			klog.V(4).Infof("emptydir trying to assign quota %v on %s", mounterSize, dir)
			if err := fsquota.AssignQuota(ed.mounter, dir, ed.pod.UID, mounterSize); err != nil {
				klog.V(3).Infof("Set quota on %s failed %s", dir, err.Error())

	// From fsquota point of view each volume is attached to a
	// single unique pod.
	// If we decide later that we want to assign one quota for all
	// volumes in a pod, we can simply use poduid parameter directly
	// If and when we decide permanently that we're going to adopt
	// one quota per volume, we can rip all of the pod code out.
	externalPodUid := poduid
	internalPodUid, ok := dirPodMap[path]
	if ok {

See the License for the specific language governing permissions and
limitations under the License.
*/

package fsquota

import (
	"bufio"
	"fmt"
	"os"
	"path/filepath"
	"regexp"
	"strconv"
	"sync"

	"golang.org/x/sys/unix"
	"k8s.io/kubernetes/pkg/volume/util/fsquota/common"
)

var projectsFile = "/etc/projects"
var projidFile = "/etc/projid"

limitations under the License.
*/

package fsquota

import (
	"fmt"
	"os"
	"strings"
	"testing"

	"k8s.io/mount-utils"

	"k8s.io/apimachinery/pkg/api/resource"
	"k8s.io/apimachinery/pkg/types"
	utilfeature "k8s.io/apiserver/pkg/util/feature"
	featuregatetesting "k8s.io/component-base/featuregate/testing"
	"k8s.io/kubernetes/pkg/features"
	"k8s.io/kubernetes/pkg/volume/util/fsquota/common"
)

	MinQuotaPeriod = 1000
)

// MilliCPUToQuota converts milliCPU to CFS quota and period values.
// Input parameters and resulting value is number of microseconds.
func MilliCPUToQuota(milliCPU int64, period int64) (quota int64) {
	// CFS quota is measured in two values:
	//  - cfs_period_us=100ms (the amount of time to measure usage across given by period)
	//  - cfs_quota=20ms (the amount of cpu time allowed to be used across a period)

//     and the running quota doesn't change.  If it did fit, check to see if any quota was changed.  If there was no quota change
//     mark the waiter as succeeded.  If some quota did change, update the running quotas
//  2. If no running quota was changed, return now since no updates are needed.

				// We are only interested in observing updates to quota.spec to drive updates to quota.status.
				// We ignore all updates to quota.Status because they are all driven by this controller.
				// IMPORTANT:
				// We do not use this function to queue up a full quota recalculation.  To do so, would require
				// us to enqueue all quota.Status updates, and since quota.Status updates involve additional queries

		{
			msg:      "1500 input 150k quota and default period",
			input:    int64(1500),
			expected: int64(150000),
			period:   uint64(100000),
		}} {
		t.Run(testCase.msg, func(t *testing.T) {
			quota := milliCPUToQuota(testCase.input, int64(testCase.period))
			if quota != testCase.expected {
				t.Errorf("Input %v and %v, expected quota %v, but got quota %v", testCase.input, testCase.period, testCase.expected, quota)
			}
		})
	}
}

func (o *objectCountEvaluator) UsageStats(options quota.UsageStatsOptions) (quota.UsageStats, error) {
	return CalculateUsageStats(options, o.listFuncByNamespace, MatchesNoScopeFunc, o.Usage)
}

// Verify implementation of interface at compile time.
var _ quota.Evaluator = &objectCountEvaluator{}

// NewObjectCountEvaluator returns an evaluator that can perform generic

	"k8s.io/apimachinery/pkg/labels"
	"k8s.io/apimachinery/pkg/runtime"
	"k8s.io/apimachinery/pkg/runtime/schema"
	"k8s.io/apimachinery/pkg/util/sets"
	"k8s.io/apiserver/pkg/admission"
	quota "k8s.io/apiserver/pkg/quota/v1"
	"k8s.io/apiserver/pkg/quota/v1/generic"
	"k8s.io/apiserver/pkg/util/feature"
	"k8s.io/utils/clock"

	resourcehelper "k8s.io/kubernetes/pkg/api/v1/resource"
	api "k8s.io/kubernetes/pkg/apis/core"