Kubelet: do not report used inodes on Windows

pkg/kubelet/dockershim/docker_image_windows.go

@@ -45,9 +45,8 @@ func (ds *dockerService) ImageFsInfo(_ context.Context, _ *runtimeapi.ImageFsInf
 
 	filesystems := []*runtimeapi.FilesystemUsage{
 		{
-			Timestamp:  time.Now().UnixNano(),
-			UsedBytes:  &runtimeapi.UInt64Value{Value: fsinfo.Usage},
-			InodesUsed: &runtimeapi.UInt64Value{Value: 0},
+			Timestamp: time.Now().UnixNano(),
+			UsedBytes: &runtimeapi.UInt64Value{Value: fsinfo.Usage},
 			FsId: &runtimeapi.FilesystemIdentifier{
 				Mountpoint: info.DockerRootDir,
 			},

pkg/kubelet/stats/cri_stats_provider.go

@@ -182,9 +182,11 @@ func (p *criStatsProvider) ImageFsStats() (*statsapi.FsStats, error) {
 	// TODO(yguo0905): Support returning stats of multiple image filesystems.
 	for _, fs := range resp {
 		s := &statsapi.FsStats{
-			Time:       metav1.NewTime(time.Unix(0, fs.Timestamp)),
-			UsedBytes:  &fs.UsedBytes.Value,
-			InodesUsed: &fs.InodesUsed.Value,
+			Time:      metav1.NewTime(time.Unix(0, fs.Timestamp)),
+			UsedBytes: &fs.UsedBytes.Value,
+		}
+		if fs.InodesUsed != nil {
+			s.InodesUsed = &fs.InodesUsed.Value
 		}
 		imageFsInfo := p.getFsInfo(fs.GetFsId())
 		if imageFsInfo != nil {