From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: with ECARTIS (v1.0.0; list xfs); Tue, 24 Jun 2008 02:30:21 -0700 (PDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.168.29]) by oss.sgi.com (8.12.11.20060308/8.12.11/SuSE Linux 0.7) with ESMTP id m5O9UFaM018419 for ; Tue, 24 Jun 2008 02:30:16 -0700 Received: from mail.lichtvoll.de (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 3CD5A26F3CD for ; Tue, 24 Jun 2008 02:31:14 -0700 (PDT) Received: from mail.lichtvoll.de (mondschein.lichtvoll.de [194.150.191.11]) by cuda.sgi.com with ESMTP id xcoA0GE567tYTC0E for ; Tue, 24 Jun 2008 02:31:14 -0700 (PDT) Received: from nb27steigerwald.qs.de (unknown [212.204.70.254]) by mail.lichtvoll.de (Postfix) with ESMTP id A682B5ADEF for ; Tue, 24 Jun 2008 11:27:46 +0200 (CEST) From: Martin Steigerwald Subject: Re: md raid1 passes barriers, but xfs doesn't use them? Date: Tue, 24 Jun 2008 11:31:11 +0200 References: <48605A8E.9070903@sandeen.net> (sfid-20080624_084605_814814_B137A507) In-Reply-To: <48605A8E.9070903@sandeen.net> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200806241131.12112.Martin@lichtvoll.de> Sender: xfs-bounce@oss.sgi.com Errors-to: xfs-bounce@oss.sgi.com List-Id: xfs To: linux-xfs@oss.sgi.com Hi Eric! Am Dienstag 24 Juni 2008 schrieb Eric Sandeen: > So md raid1 is happy to pass down any barrier writes that it sees, but > this bit in xfs_mountfs_check_barriers() at mount time: Interesting. Since when? On my last test also ext3 disabled barries over device mapper / reiserfs[1]. well but I used it with LVM, maybe its different with RAID 1. I thought this to be a generic device mapper issue. Did you test with ext3 too? [1] http://bugzilla.kernel.org/show_bug.cgi?id=9554 Ciao, -- Martin 'Helios' Steigerwald - http://www.Lichtvoll.de GPG: 03B0 0D6C 0040 0710 4AFA B82F 991B EAAC A599 84C7