if info.IsDir() {
			return os.MkdirAll(dstPath, perm|0200)
		}

		// If the OS supports symlinks, use them instead of copying bytes.
		if err := os.Symlink(srcPath, dstPath); err == nil {
			return nil
		}

		// Otherwise, copy the bytes.
		src, err := os.Open(srcPath)
		if err != nil {
			return err
		}
		defer src.Close()

		dst, err := os.OpenFile(dstPath, os.O_WRONLY|os.O_CREATE|os.O_EXCL, perm)

		// If we add a file in the overlay, we don't want to add it in the original.
		if info.IsDir() {
			return os.MkdirAll(dstPath, perm|0200)
		}

		// If we can use a hard link, do that instead of copying bytes.
		// Go builds don't like symlinks in some cases, such as go:embed.
		if err := os.Link(srcPath, dstPath); err == nil {
			return nil
		}

		// Otherwise, copy the bytes.
		src, err := os.Open(srcPath)
		if err != nil {

	var devices []string
	// devicePath might be like /dev/mapper/mpathX. Find destination.
	dstPath, err := c.io.EvalSymlinks(devicePath)
	if err != nil {
		return err
	}
	// Find slave
	if strings.HasPrefix(dstPath, "/dev/dm-") {
		devices = c.deviceUtil.FindSlaveDevicesOnMultipath(dstPath)
		if err := util.deleteMultipathDevice(c.exec, dstPath); err != nil {
			return err
		}
	} else {
		// Add single devicepath to devices

	for _, f := range files {
		dstPath := filepath.Join(root, f)

		dir := filepath.Dir(dstPath)
		if err := os.MkdirAll(dir, 0755); err != nil {
			t.Fatal(err)
		}

		if os.IsPathSeparator(f[len(f)-1]) {
			continue // directory and PATH entry only.
		}
		if strings.EqualFold(filepath.Ext(f), ".bat") {
			installBat(t, dstPath)
		} else {
			installExe(t, dstPath)
		}
	}
}

	if err := d.calcError(); err != nil {
		return RenameDataResp{}, err
	}
	return d.disk.RenameData(ctx, srcVolume, srcPath, fi, dstVolume, dstPath, opts)
}

func (d *naughtyDisk) RenameFile(ctx context.Context, srcVolume, srcPath, dstVolume, dstPath string) error {
	if err := d.calcError(); err != nil {

	ReadXL(ctx context.Context, volume, path string, readData bool) (RawFileInfo, error)
	RenameData(ctx context.Context, srcVolume, srcPath string, fi FileInfo, dstVolume, dstPath string, opts RenameOptions) (RenameDataResp, error)

	// File operations.
	ListDir(ctx context.Context, origvolume, volume, dirPath string, count int) ([]string, error)

// dstPath containing entries for the file mappings in packageFiles, as well
// as for the packages transitively imported by the package(s) in pkgs.
//
// pkgs may include any package pattern that is valid to pass to 'go list',
// so it may also be a list of Go source files all in the same directory.
func WriteImportcfg(t testing.TB, dstPath string, packageFiles map[string]string, pkgs ...string) {

func (client *storageRESTClient) RenameData(ctx context.Context, srcVolume, srcPath string, fi FileInfo,
	dstVolume, dstPath string, opts RenameOptions,
) (res RenameDataResp, err error) {
	params := RenameDataHandlerParams{
		DiskID:    *client.diskID.Load(),
		SrcVolume: srcVolume,
		SrcPath:   srcPath,
		DstPath:   dstPath,
		DstVolume: dstVolume,
		FI:        fi,
		Opts:      opts,
	}
	var resp *RenameDataResp

			continue
		}
		copiedFiles[file.Name()] = true
		r, err := os.Open(filepath.Join(src, file.Name()))
		if err != nil {
			base.Fatal(err)
		}
		dstPath := filepath.Join(dst, file.Name())
		copiedFiles[dstPath] = true
		w, err := os.Create(dstPath)
		if err != nil {
			base.Fatal(err)
		}
		if _, err := io.Copy(w, r); err != nil {
			base.Fatal(err)
		}
		r.Close()

	ctx, done, err := p.TrackDiskHealth(ctx, storageMetricRenameFile, srcVolume, srcPath, dstVolume, dstPath)
	if err != nil {
		return err
	}
	defer done(0, &err)

	w := xioutil.NewDeadlineWorker(globalDriveConfig.GetMaxTimeout())
	return w.Run(func() error { return p.storage.RenameFile(ctx, srcVolume, srcPath, dstVolume, dstPath) })
}