var data []byte
		var mt time.Time

		fullPath := pathJoin(volumeDir, req.Prefix, f)
		w := xioutil.NewDeadlineWorker(globalDriveConfig.GetMaxTimeout())
		if err := w.Run(func() (err error) {
			if req.MetadataOnly {
				data, mt, err = s.readMetadataWithDMTime(ctx, fullPath)
			} else {
				data, mt, err = s.readAllDataWithDMTime(ctx, req.Bucket, volumeDir, fullPath)
			}
			return err
		}); err != nil {