Received: with ECARTIS (v1.0.0; list linux-xfs); Thu, 26 Feb 2004 07:02:42 -0800 (PST) Received: from relay.uni-heidelberg.de (relay.uni-heidelberg.de [129.206.100.212]) by oss.sgi.com (8.12.10/8.12.9) with SMTP id i1QF2LKO029274 for ; Thu, 26 Feb 2004 07:02:22 -0800 Received: from mail.iwr.uni-heidelberg.de (mail.iwr.uni-heidelberg.de [129.206.104.30]) by relay.uni-heidelberg.de (8.12.10/8.12.10) with ESMTP id i1QF2Kiv022327 for ; Thu, 26 Feb 2004 16:02:20 +0100 (MET) Received: from boskoop.iwr.uni-heidelberg.de (boskoop.iwr.uni-heidelberg.de [129.206.120.167]) by mail.iwr.uni-heidelberg.de (8.12.10/8.12.9) with ESMTP id i1QF2J2x014760 for ; Thu, 26 Feb 2004 16:02:19 +0100 (MET) Received: from iwr.uni-heidelberg.de (localhost [127.0.0.1]) by boskoop.iwr.uni-heidelberg.de (8.9.3p2/8.9.3/SuSE Linux 8.9.3-0.1) with ESMTP id QAA04370 for ; Thu, 26 Feb 2004 16:02:19 +0100 Message-ID: <403E0A7A.3040505@iwr.uni-heidelberg.de> Date: Thu, 26 Feb 2004 16:02:18 +0100 From: Michael Lampe Organization: IWR Uni Heidelberg User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.6) Gecko/20040117 X-Accept-Language: en-us, en MIME-Version: 1.0 To: linux-xfs@oss.sgi.com Subject: 2.4.25 & xfs & ide write barriers Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-archive-position: 2244 X-ecartis-version: Ecartis v1.0.0 Sender: linux-xfs-bounce@oss.sgi.com Errors-to: linux-xfs-bounce@oss.sgi.com X-original-sender: Michael.Lampe@iwr.uni-heidelberg.de Precedence: bulk X-list: linux-xfs fs/xfs/linux/xfs_buf.c already has #ifdef RQ_WRITE_ORDERED if (flush) set_bit(BH_Ordered_Flush, &bufferlist[cnt-1]->b_state); #endif in _pagebuf_page_io. Is this all I need (I already have applied the ide write barrier patch) to safely use disk write back caching? Thanks, Michael