From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1764301AbXGQWRe (ORCPT ); Tue, 17 Jul 2007 18:17:34 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757136AbXGQWRZ (ORCPT ); Tue, 17 Jul 2007 18:17:25 -0400 Received: from srv5.dvmed.net ([207.36.208.214]:50197 "EHLO mail.dvmed.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751707AbXGQWRY (ORCPT ); Tue, 17 Jul 2007 18:17:24 -0400 Message-ID: <469D3FF0.2010109@garzik.org> Date: Tue, 17 Jul 2007 18:17:20 -0400 From: Jeff Garzik User-Agent: Thunderbird 1.5.0.12 (X11/20070530) MIME-Version: 1.0 To: Roland Dreier CC: akpm@linux-foundation.org, torvalds@linux-foundation.org, linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org, chas@cmf.nrl.navy.mil, rolandd@cisco.com, dwmw2@infradead.org, gregkh@suse.de Subject: Re: [git patches 1/2] warnings: attack valid cases spotted by warnings References: <20070717214239.GF28448@devserv.devel.redhat.com> <469D3E66.3010502@garzik.org> In-Reply-To: <469D3E66.3010502@garzik.org> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Score: -4.3 (----) X-Spam-Report: SpamAssassin version 3.1.9 on srv5.dvmed.net summary: Content analysis details: (-4.3 points, 5.0 required) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Jeff Garzik wrote: > I don't buy that performance argument, in this case. You are already > dirtying the same cacheline with other variable initializations. Or simply sitting in a CPU register for large stretches of function runtime... Jeff