From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755026AbZGJMGK (ORCPT ); Fri, 10 Jul 2009 08:06:10 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754767AbZGJMFa (ORCPT ); Fri, 10 Jul 2009 08:05:30 -0400 Received: from atrey.karlin.mff.cuni.cz ([195.113.26.193]:53343 "EHLO atrey.karlin.mff.cuni.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750874AbZGJMFZ (ORCPT ); Fri, 10 Jul 2009 08:05:25 -0400 Date: Fri, 10 Jul 2009 01:19:57 +0200 From: Pavel Machek To: "H. Peter Anvin" Cc: "John A. Gregor" , ralph.campbell@qlogic.com, linux-kernel@vger.kernel.org, johng@diamond.mv.qlogic.com Subject: Re: [PATCH] x86_64/__iowrite32_copy: don't use string move for PIO writes Message-ID: <20090709231957.GC1469@ucw.cz> References: <1246907224-22758-1-git-send-email-john.gregor@qlogic.com> <4A526CE6.30200@zytor.com> <4a526e77.IPiyTZWRWfll2+00%john.gregor@qlogic.com> <4A527EE4.1080102@zytor.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4A527EE4.1080102@zytor.com> User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > - the current code is fine as long as it doesn't cross from cached to > uncached memory, which it never should in any kind of sensible driver; Should we add a comment somewhere saying that is not permitted (and why)? -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html