respBody, err := client.call(ctx, storageRESTMethodCreateFile, values, io.NopCloser(reader), size)
	defer xhttp.DrainBody(respBody)
	if err != nil {
		return err
	}
	_, err = waitForHTTPResponse(respBody)
	return toStorageErr(err)
}

func (client *storageRESTClient) WriteMetadata(ctx context.Context, origvolume, volume, path string, fi FileInfo) error {

		<-doneCh

		// Clear so we can be called multiple times without crashing.
		doneCh = nil
	}
}

// waitForHTTPResponse will wait for responses where keepHTTPResponseAlive
// has been used.
// The returned reader contains the payload.
func waitForHTTPResponse(respBody io.Reader) (io.Reader, error) {
	reader := bufio.NewReader(respBody)
	for {
		b, err := reader.ReadByte()
		if err != nil {