From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.4 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 83411C3A59F for ; Mon, 26 Aug 2019 18:31:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5A1BA2184D for ; Mon, 26 Aug 2019 18:31:18 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b="KWNMExen" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727687AbfHZSbS (ORCPT ); Mon, 26 Aug 2019 14:31:18 -0400 Received: from userp2130.oracle.com ([156.151.31.86]:43292 "EHLO userp2130.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728559AbfHZSbR (ORCPT ); Mon, 26 Aug 2019 14:31:17 -0400 Received: from pps.filterd (userp2130.oracle.com [127.0.0.1]) by userp2130.oracle.com (8.16.0.27/8.16.0.27) with SMTP id x7QIE7SP006539; Mon, 26 Aug 2019 18:31:11 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=date : from : to : cc : subject : message-id : references : mime-version : content-type : in-reply-to; s=corp-2019-08-05; bh=zL6/7NQ+dIS9XboDSm0uY3zB4jZKhKTvWqBRqqkcK+8=; b=KWNMExenIiu+B6H8fGlWOjwE0euifKbRQydbfXa58Da4ewrcY8OjgUTYFd5rxgD4xUXo xbMx6BOqmutyiK/GmL7dYbKIHcpQtVXMnVh+twkeydhOv7MhMSltN6jqEj6s4KvY2JGH 1beMiuUX2SWUibU+4RzaNUrrj07yC0QrLf07zBlAJ9j+UvZiYNcBUbjG5om/yInu9jFp K+S+oFgahWq8mg3WmaWIJdSpAc03zNffgEyRBskUyTrwFVBch9sHOX4hEc5CdbIjy2EZ Dh8b6/wrSwuhwPIwliw+NWJTEES0OuadXvW4eqCn64rUAVYA6Anhfkj5Pe3vgfi72sn5 gg== Received: from aserp3020.oracle.com (aserp3020.oracle.com [141.146.126.70]) by userp2130.oracle.com with ESMTP id 2umjjqrxsv-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 26 Aug 2019 18:31:11 +0000 Received: from pps.filterd (aserp3020.oracle.com [127.0.0.1]) by aserp3020.oracle.com (8.16.0.27/8.16.0.27) with SMTP id x7QIE7Pg040863; Mon, 26 Aug 2019 18:31:10 GMT Received: from userv0121.oracle.com (userv0121.oracle.com [156.151.31.72]) by aserp3020.oracle.com with ESMTP id 2umj2xq0ub-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 26 Aug 2019 18:31:10 +0000 Received: from abhmp0002.oracle.com (abhmp0002.oracle.com [141.146.116.8]) by userv0121.oracle.com (8.14.4/8.13.8) with ESMTP id x7QIV8Vn015267; Mon, 26 Aug 2019 18:31:08 GMT Received: from localhost (/67.169.218.210) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Mon, 26 Aug 2019 11:31:08 -0700 Date: Mon, 26 Aug 2019 11:31:07 -0700 From: "Darrick J. Wong" To: "Theodore Y. Ts'o" Cc: Andreas Dilger , linux-ext4@vger.kernel.org Subject: Re: question about jbd2 checksum v2 and v3 flag Message-ID: <20190826183107.GA1037476@magnolia> References: <20190826165106.GF4918@mit.edu> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190826165106.GF4918@mit.edu> User-Agent: Mutt/1.9.4 (2018-02-28) X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9361 signatures=668684 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 malwarescore=0 phishscore=0 bulkscore=0 spamscore=0 mlxscore=0 mlxlogscore=862 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1906280000 definitions=main-1908260177 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9361 signatures=668684 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=943 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1906280000 definitions=main-1908260177 Sender: linux-ext4-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-ext4@vger.kernel.org On Mon, Aug 26, 2019 at 12:51:06PM -0400, Theodore Y. Ts'o wrote: > On Sun, Aug 25, 2019 at 09:05:36PM -0600, Andreas Dilger wrote: > > See description of the compat/incompat/ro_compat fields at: > > > > https://ext4.wiki.kernel.org/index.php/Ext4_Disk_Layout#The_Super_Block > > > > Hey Andreas, > > As an aside, thanks for puting the above wiki page. Any chance you > could also send a patch to update Documentation/filesystems/ext4/super.rst? Huh? That wiki page was ported to the ^^^^^ rst file. --D > Many thanks!! > > - Ted