From patchwork Thu Jul 16 09:53:06 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jan Kara X-Patchwork-Id: 6805871 Return-Path: X-Original-To: patchwork-linux-fsdevel@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id B9FF4C05AC for ; Thu, 16 Jul 2015 09:53:42 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id F0E7A20788 for ; Thu, 16 Jul 2015 09:53:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 129C320782 for ; Thu, 16 Jul 2015 09:53:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754976AbbGPJxR (ORCPT ); Thu, 16 Jul 2015 05:53:17 -0400 Received: from cantor2.suse.de ([195.135.220.15]:54101 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754793AbbGPJxP (ORCPT ); Thu, 16 Jul 2015 05:53:15 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay1.suse.de (charybdis-ext.suse.de [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id D0012AC13; Thu, 16 Jul 2015 09:53:13 +0000 (UTC) Received: by quack.suse.cz (Postfix, from userid 1000) id 5DA218282C; Thu, 16 Jul 2015 11:53:10 +0200 (CEST) From: Jan Kara To: linux-ext4@vger.kernel.org Cc: linux-fsdevel@vger.kernel.org, LKML , Andrew Morton , Andreas Dilger , Jens Axboe , Ted Tso , Jan Kara Subject: [PATCH 4/4] ext4: Improve ext4 Kconfig test Date: Thu, 16 Jul 2015 11:53:06 +0200 Message-Id: <1437040386-31148-5-git-send-email-jack@suse.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1437040386-31148-1-git-send-email-jack@suse.com> References: <1437040386-31148-1-git-send-email-jack@suse.com> Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org X-Spam-Status: No, score=-8.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Now that ext4 driver must be used to access ext3 filesystems, improve the Kconfig help text to better explain that using ext4 driver to access the filesystem is fully compatible with the old ext3 driver. Signed-off-by: Jan Kara Acked-by: Theodore Ts'o --- fs/ext4/Kconfig | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/fs/ext4/Kconfig b/fs/ext4/Kconfig index 219a190ccae9..47728da7702c 100644 --- a/fs/ext4/Kconfig +++ b/fs/ext4/Kconfig @@ -49,12 +49,13 @@ config EXT4_FS up fsck time. For more information, please see the web pages at http://ext4.wiki.kernel.org. - The ext4 filesystem will support mounting an ext3 - filesystem; while there will be some performance gains from - the delayed allocation and inode table readahead, the best - performance gains will require enabling ext4 features in the - filesystem, or formatting a new filesystem as an ext4 - filesystem initially. + The ext4 filesystem supports mounting an ext3 filesystem; while there + are some performance gains from the delayed allocation and inode + table readahead, the best performance gains require enabling ext4 + features in the filesystem using tune2fs, or formatting a new + filesystem as an ext4 filesystem initially. Without explicit enabling + of ext4 features, the on disk filesystem format stays fully backward + compatible. To compile this file system support as a module, choose M here. The module will be called ext4.