From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Mon, 28 Oct 2002 11:05:31 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Mon, 28 Oct 2002 11:05:31 -0500 Received: from rth.ninka.net ([216.101.162.244]:22702 "EHLO rth.ninka.net") by vger.kernel.org with ESMTP id ; Mon, 28 Oct 2002 11:05:30 -0500 Subject: Re: [patch][cft] zero-copy dma cd writing and ripping From: "David S. Miller" To: Jens Axboe Cc: linux-kernel@vger.kernel.org, akpm@digeo.com In-Reply-To: <20021028155401.GI2937@suse.de> References: <20021018155650.GJ15494@suse.de> <20021028.043507.104714061.davem@redhat.com> <20021028124240.GC872@suse.de> <1035816048.8970.1.camel@rth.ninka.net> <20021028150832.GF2937@suse.de> <1035821017.9282.7.camel@rth.ninka.net> <20021028155401.GI2937@suse.de> Content-Type: text/plain Content-Transfer-Encoding: 7bit X-Mailer: Ximian Evolution 1.0.8 (1.0.8-10) Date: 28 Oct 2002 08:25:10 -0800 Message-Id: <1035822310.8970.9.camel@rth.ninka.net> Mime-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 2002-10-28 at 07:54, Jens Axboe wrote: > I agree then. I will remove references to flush_dcache_page() in > bio_map_user() and bio_unmap_user(), and we'll just unconditionally do > flush_dcache_page() on every page mapped in get_user_pages(). That > sounds far better to me. Do you really expect users of get_user_pages() > to get this right (remember, we are often talking about device drivers > :-). I sure am not :) I have no expectations whatsoever :-) I totally agree with you.