func (c *lockRESTClient) RLock(ctx context.Context, args dsync.LockArgs) (reply bool, err error) {
	return c.call(ctx, lockRPCRLock, &args)
}

// Lock calls lock REST API.
func (c *lockRESTClient) Lock(ctx context.Context, args dsync.LockArgs) (reply bool, err error) {
	return c.call(ctx, lockRPCLock, &args)
}

// RUnlock calls read unlock REST API.

	ctx, done, err := p.TrackDiskHealth(ctx, storageMetricStatVol, volume)
	if err != nil {
		return vol, err
	}
	defer done(0, &err)

	return xioutil.WithDeadline[VolInfo](ctx, globalDriveConfig.GetMaxTimeout(), func(ctx context.Context) (result VolInfo, err error) {
		return p.storage.StatVol(ctx, volume)
	})
}

func (p *xlStorageDiskIDCheck) DeleteVol(ctx context.Context, volume string, forceDelete bool) (err error) {

	bucketStorageCache.InitOnce(10*time.Second,
		cachevalue.Opts{ReturnLastGood: true, NoWait: true},
		func(ctx context.Context) (DataUsageInfo, error) {
			if objAPI == nil {
				return DataUsageInfo{}, errServerNotInitialized
			}
			ctx, done := context.WithTimeout(ctx, 2*time.Second)
			defer done()

			return loadDataUsageFromBackend(ctx, objAPI)
		},
	)
}

// GetBucketUsageInfo return bucket usage info for a given bucket

	defer t.Stop()
	for {
		select {
		case <-ctx.Done():
			return
		case <-t.C:
			err := config.Reload(ctx, objAPI)
			if err != nil {
				tierLogIf(ctx, err)
			}
		}
		t.Reset(tierCfgRefresh + randInterval())
	}
}

// loadTierConfig loads remote tier configuration from objAPI.
func loadTierConfig(ctx context.Context, objAPI ObjectLayer) (*TierConfigMgr, error) {

	}

	return updatedAt, sys.save(ctx, meta)
}

func (sys *BucketMetadataSys) save(ctx context.Context, meta BucketMetadata) error {
	objAPI := newObjectLayerFn()
	if objAPI == nil {
		return errServerNotInitialized
	}

	if isMinioMetaBucketName(meta.Name) {
		return errInvalidArgument
	}

	if err := meta.Save(ctx, objAPI); err != nil {
		return err
	}

func (driver *ftpDriver) Rename(ctx *ftp.Context, fromObjPath string, toObjPath string) (err error) {
	stopFn := globalFtpMetrics.log(ctx, fromObjPath, toObjPath)
	defer stopFn(0, err)

	return NotImplemented{}
}

// MakeDir implements ftpDriver
func (driver *ftpDriver) MakeDir(ctx *ftp.Context, objPath string) (err error) {
	stopFn := globalFtpMetrics.log(ctx, objPath)
	defer stopFn(0, err)

		},
	)

	ctx, cancel := context.WithCancel(t.Context())
	cancel() // cancel context to test.

	_, err := cache.GetWithCtx(ctx)
	if !errors.Is(err, context.Canceled) {
		t.Fatalf("expected context.Canceled err, got %v", err)
	}

	ctx, cancel = context.WithCancel(t.Context())
	defer cancel()

	t1, err := cache.GetWithCtx(ctx)
	if err != nil {
		t.Fatalf("expected nil err, got %v", err)
	}

	err = s.adm.RemoveUser(ctx, accessKey)
	if err != nil {
		c.Fatalf("user could not be deleted: %v", err)
	}

	err = s.adm.RemoveCannedPolicy(ctx, policy1)
	if err != nil {
		c.Fatalf("policy del err: %v", err)
	}

	err = s.adm.RemoveCannedPolicy(ctx, policy2)
	if err != nil {
		c.Fatalf("policy del err: %v", err)
	}
}

func (s *TestSuiteIAM) TestPolicyCreate(c *check) {

	if err != nil {
		writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
		return
	}

	eventData, err := getLambdaEventData(bucket, object, cred, r)
	if err != nil {
		writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
		return
	}

	resp, err := target.Send(eventData)
	if err != nil {
		writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
		return
	}
	defer resp.Body.Close()

	for i, fiv := range versions {
		if contextCanceled(ctx) {
			errs[i] = ctx.Err()
			continue
		}
		errs[i] = s.deleteVersions(ctx, volume, fiv.Name, fiv.Versions...)
		diskHealthCheckOK(ctx, errs[i])
	}

	return errs
}

func (s *xlStorage) cleanupTrashImmediateCallers(ctx context.Context) {
	for {
		select {
		case <-ctx.Done():
			return
		case entry := <-s.immediatePurge: