if (ulint zip_size = fil_space_t::zip_size(flags)) {

                page_zip_des_t  page_zip;

                page_zip_set_size(&page_zip, zip_size);

                page_zip.data = page + srv_page_size;

#ifdef UNIV_DEBUG

                page_zip.m_start = 0;

#endif /* UNIV_DEBUG */

                page_zip.m_end = 0;

                page_zip.m_nonempty = 0;

                page_zip.n_blobs = 0;

                buf_flush_init_for_writing(NULL, page, &page_zip, false);

                *err = os_file_write(IORequestWrite, path, file,

                                     page_zip.data, 0, zip_size);

        } else {

                buf_flush_init_for_writing(NULL, page, NULL,

                                           fil_space_t::full_crc32(flags));

                *err = os_file_write(IORequestWrite, path, file,

                                     page, 0, srv_page_size);

        }

        if (!os_file_flush(file)) {

                ib::error() << "File flush of tablespace '"

                        << path << "' failed";

                *err = DB_ERROR;

                goto err_exit;

        }