From: Christoph Hellwig Subject: [PATCH 1/2] ext3: make ext3 mount default to barrier=1 Date: Mon, 11 Jul 2011 14:25:59 -0400 Message-ID: <20110711182558.GB12099@infradead.org> References: <20110711182532.GA12099@infradead.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: jeffm@suse.com, chris.mason@oracle.com, jack@suse.cz, reiserfs-devel@vger.kernel.org, linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org To: viro@zeniv.linux.org.uk Return-path: Received: from 173-166-109-252-newengland.hfc.comcastbusiness.net ([173.166.109.252]:47035 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757032Ab1GKS0D (ORCPT ); Mon, 11 Jul 2011 14:26:03 -0400 Content-Disposition: inline In-Reply-To: <20110711182532.GA12099@infradead.org> Sender: linux-ext4-owner@vger.kernel.org List-ID: From: Chris Mason This patch turns on barriers by default for ext3. mount -o barrier=0 will turn them off. Acked-by: Jeff Mahoney Index: linux-2.6/fs/ext3/super.c =================================================================== --- linux-2.6.orig/fs/ext3/super.c 2011-06-30 21:19:37.389544975 +0200 +++ linux-2.6/fs/ext3/super.c 2011-07-02 13:56:51.877784292 +0200 @@ -1718,6 +1718,8 @@ static int ext3_fill_super (struct super sbi->s_resuid = le16_to_cpu(es->s_def_resuid); sbi->s_resgid = le16_to_cpu(es->s_def_resgid); + /* enable barriers by default */ + set_opt(sbi->s_mount_opt, BARRIER); set_opt(sbi->s_mount_opt, RESERVATION); if (!parse_options ((char *) data, sb, &journal_inum, &journal_devnum,