Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932177AbVKJVxH (ORCPT ); Thu, 10 Nov 2005 16:53:07 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932181AbVKJVxH (ORCPT ); Thu, 10 Nov 2005 16:53:07 -0500 Received: from pentafluge.infradead.org ([213.146.154.40]:23742 "EHLO pentafluge.infradead.org") by vger.kernel.org with ESMTP id S932177AbVKJVxF (ORCPT ); Thu, 10 Nov 2005 16:53:05 -0500 Date: Thu, 10 Nov 2005 21:52:56 +0000 From: Christoph Hellwig To: Christoph Lameter Cc: Andrew Morton , Ingo Molnar , hugh@veritas.com, linux-kernel@vger.kernel.org, torvalds@osdl.org Subject: Re: [PATCH 01/15] mm: poison struct page for ptlock Message-ID: <20051110215255.GA25712@infradead.org> Mail-Followup-To: Christoph Hellwig , Christoph Lameter , Andrew Morton , Ingo Molnar , hugh@veritas.com, linux-kernel@vger.kernel.org, torvalds@osdl.org References: <20051109181022.71c347d4.akpm@osdl.org> <20051109185645.39329151.akpm@osdl.org> <20051110120624.GB32672@elte.hu> <20051110042613.7a585dec.akpm@osdl.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.2.1i X-SRS-Rewrite: SMTP reverse-path rewritten from by pentafluge.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 767 Lines: 17 On Thu, Nov 10, 2005 at 01:37:19PM -0800, Christoph Lameter wrote: > On Thu, 10 Nov 2005, Andrew Morton wrote: > > > spinlock in struct page, and the size of the spinlock varies a lot according > > to config. The only >wordsize version we really care about is > > CONFIG_PREEMPT, NR_CPUS >= 4. (which distros don't ship...) > > Suse, Debian and Redhat ship such kernels. No. SuSE and Redhat have always been smart enough to avoid CONFIG_PREEMPT like the plague, and even Debian finally noticed this a few month ago. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/