return 0, err
	}
	return d.disk.ReadFile(ctx, volume, path, offset, buf, verifier)
}

func (d *naughtyDisk) ReadFileStream(ctx context.Context, volume, path string, offset, length int64) (io.ReadCloser, error) {
	if err := d.calcError(); err != nil {
		return nil, err
	}
	return d.disk.ReadFileStream(ctx, volume, path, offset, length)
}

		b.currOffset = offset
		streamOffset := (offset/b.shardSize)*int64(b.h.Size()) + offset
		if len(b.data) == 0 && b.tillOffset != streamOffset {
			b.rc, err = b.disk.ReadFileStream(context.TODO(), b.volume, b.filePath, streamOffset, b.tillOffset-streamOffset)
		} else {
			b.rc = io.NewSectionReader(bytes.NewReader(b.data), streamOffset, b.tillOffset-streamOffset)
		}
		if err != nil {

	AppendFile(ctx context.Context, volume string, path string, buf []byte) (err error)
	CreateFile(ctx context.Context, origvolume, olume, path string, size int64, reader io.Reader) error
	ReadFileStream(ctx context.Context, volume, path string, offset, length int64) (io.ReadCloser, error)
	RenameFile(ctx context.Context, srcVolume, srcPath, dstVolume, dstPath string) error

	localDrives := cloneDrives(globalLocalDrivesMap)
	globalLocalDrivesMu.RUnlock()

	for _, localDrive := range localDrives {
		if localDrive == nil {
			continue
		}
		rc, err := localDrive.ReadFileStream(context.Background(), minioMetaBucket, pathJoin(healMRFDir, "list.bin"), 0, -1)
		if err != nil {
			continue
		}
		err = loadMRF(rc, m.opCh)
		if err != nil {
			continue
		}

		Volume:   volume,
		FilePath: path,
	})
	if err != nil {
		return nil, toStorageErr(err)
	}

	return *gridBytes, nil
}

// ReadFileStream - returns a reader for the requested file.
func (client *storageRESTClient) ReadFileStream(ctx context.Context, volume, path string, offset, length int64) (io.ReadCloser, error) {
	values := make(url.Values)
	values.Set(storageRESTVolume, volume)

func (a badDisk) String() string {
	return "bad-disk"
}

func (a badDisk) AppendFile(ctx context.Context, volume string, path string, buf []byte) error {
	return errFaultyDisk
}

func (a badDisk) ReadFileStream(ctx context.Context, volume, path string, offset, length int64) (io.ReadCloser, error) {
	return nil, errFaultyDisk
}

	if err != nil {
		return err
	}
	defer done(size, &err)

	return p.storage.CreateFile(ctx, origvolume, volume, path, size, io.NopCloser(reader))
}

func (p *xlStorageDiskIDCheck) ReadFileStream(ctx context.Context, volume, path string, offset, length int64) (io.ReadCloser, error) {
	ctx, done, err := p.TrackDiskHealth(ctx, storageMetricReadFileStream, volume, path)
	if err != nil {
		return nil, err
	}

		return
	}
	length, err := strconv.ParseInt(r.Form.Get(storageRESTLength), 10, 64)
	if err != nil {
		s.writeErrorResponse(w, err)
		return
	}

	rc, err := s.getStorage().ReadFileStream(r.Context(), volume, filePath, offset, length)
	if err != nil {
		s.writeErrorResponse(w, err)
		return
	}
	defer rc.Close()

	_, err = xioutil.Copy(w, rc)

		default:
			return nil, err
		}
	}

	return w, nil
}

type sendFileReader struct {
	io.Reader
	io.Closer
}

// ReadFileStream - Returns the read stream of the file.
func (s *xlStorage) ReadFileStream(ctx context.Context, volume, path string, offset, length int64) (io.ReadCloser, error) {
	if offset < 0 {
		return nil, errInvalidArgument
	}

				if err != nil {
					continue
				}
				for _, si := range stats {
					found++
					var r io.ReadCloser
					if !si.Dir {
						r, err = disk.ReadFileStream(ctx, volume, si.Name, 0, si.Size)
						if err != nil {
							continue
						}
					} else {
						r = io.NopCloser(bytes.NewBuffer([]byte{}))
					}