From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750751AbWC2CFt (ORCPT ); Tue, 28 Mar 2006 21:05:49 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750766AbWC2CFt (ORCPT ); Tue, 28 Mar 2006 21:05:49 -0500 Received: from dsl027-180-168.sfo1.dsl.speakeasy.net ([216.27.180.168]:11915 "EHLO sunset.davemloft.net") by vger.kernel.org with ESMTP id S1750751AbWC2CFt (ORCPT ); Tue, 28 Mar 2006 21:05:49 -0500 Date: Tue, 28 Mar 2006 18:06:05 -0800 (PST) Message-Id: <20060328.180605.96459770.davem@davemloft.net> To: horms@verge.net.au Cc: penberg@cs.helsinki.fi, linux-kernel@vger.kernel.org Subject: Re: [PATCH] slab: optimize constant-size kzalloc calls From: "David S. Miller" In-Reply-To: <20060329015745.GA29301@verge.net.au> References: <1142868958.11159.0.camel@localhost> <20060329015745.GA29301@verge.net.au> X-Mailer: Mew version 4.2.53 on Emacs 21.4 / Mule 5.0 (SAKAKI) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org From: Horms Date: Wed, 29 Mar 2006 10:57:46 +0900 > I feel like I mist be dreaming, but this patch, which was inlcuded > in Linus' tree as 40c07ae8daa659b8feb149c84731629386873c16 calls > __you_cannot_kzalloc_that_much(), but that does not seem to exist. > > On i386 at least that causes a build failure It's a purposeful build time error introduced so that invalid calls that specify too large kzalloc() length arguments are caught at build time.