From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <linux-kernel-owner+w=401wt.eu-S932274AbXGUUTS@vger.kernel.org>
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
	id S932274AbXGUUTS (ORCPT <rfc822;w@1wt.eu>);
	Sat, 21 Jul 2007 16:19:18 -0400
Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1761792AbXGUUTI
	(ORCPT <rfc822;linux-kernel-outgoing>);
	Sat, 21 Jul 2007 16:19:08 -0400
Received: from terminus.zytor.com ([198.137.202.10]:46407 "EHLO
	terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
	with ESMTP id S1761113AbXGUUTG (ORCPT
	<rfc822;linux-kernel@vger.kernel.org>);
	Sat, 21 Jul 2007 16:19:06 -0400
Message-ID: <46A26A2E.7070305@zytor.com>
Date: Sat, 21 Jul 2007 13:18:54 -0700
From: "H. Peter Anvin" <hpa@zytor.com>
User-Agent: Thunderbird 2.0.0.0 (X11/20070419)
MIME-Version: 1.0
To: Muli Ben-Yehuda <muli@il.ibm.com>
CC: Andi Kleen <andi@firstfloor.org>,
       Glauber de Oliveira Costa <gcosta@redhat.com>,
       Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] x86: Create clflush() inline, remove hardcoded wbinvd
References: <1184885740.16311.19.camel@t60> <200707202119.l6KLJwcd004205@tazenda.hos.anvin.org> <20070721181137.GH4152@rhun.haifa.ibm.com> <46A263FA.70501@zytor.com> <20070721201634.GF1193@rhun.ibm.com>
In-Reply-To: <20070721201634.GF1193@rhun.ibm.com>
X-Enigmail-Version: 0.95.0
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit
Sender: linux-kernel-owner@vger.kernel.org
X-Mailing-List: linux-kernel@vger.kernel.org

Muli Ben-Yehuda wrote:
> 
> So it looks like we have a purely syntactic patch that does something
> different than the original code in one of the above places. What am I
> missing?
> 

+static inline void clflush(volatile void *__p)
+{
+	asm volatile("clflush %0" : "+m" (*(char __force *)__p));
                                          ^
+}