From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261433AbTJNAQX (ORCPT ); Mon, 13 Oct 2003 20:16:23 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262106AbTJNAQX (ORCPT ); Mon, 13 Oct 2003 20:16:23 -0400 Received: from parcelfarce.linux.theplanet.co.uk ([195.92.249.252]:24287 "EHLO www.linux.org.uk") by vger.kernel.org with ESMTP id S261433AbTJNAQV (ORCPT ); Mon, 13 Oct 2003 20:16:21 -0400 Message-ID: <3F8B4048.2010007@pobox.com> Date: Mon, 13 Oct 2003 20:16:08 -0400 From: Jeff Garzik User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.4) Gecko/20030703 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Matthias Andree CC: Linux Kernel Subject: Re: [PATCH] ide write barrier support References: <20031013140858.GU1107@suse.de> <20031013223911.GB14152@merlin.emma.line.org> In-Reply-To: <20031013223911.GB14152@merlin.emma.line.org> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Matthias Andree wrote: > On Mon, 13 Oct 2003, Jens Axboe wrote: > > >>Forward ported and tested today (with the dummy ext3 patch included), >>works for me. Some todo's left, but I thought I'd send it out to gauge >>interest. TODO: >> >>- Detect write cache setting and only issue SYNC_CACHE if write cache is >> enabled (not a biggy, all drives ship with it enabled) > > > Yup, and I disable it on all drives at boot time at the latest. > > Is there a status document that lists > > - what SCSI drivers support write barriers > (I'm interested in sym53c8xx_2 if that matters) > > - what IDE drivers support write barriers > (VIA for AMD and Intel for PII/PIII/P4 chip sets here) The device is the entity that does, or does not, support flush-cache... All IDE chipsets support flush-cache... it's just another IDE command. Jeff