Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932367AbVKFXh5 (ORCPT ); Sun, 6 Nov 2005 18:37:57 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932368AbVKFXh5 (ORCPT ); Sun, 6 Nov 2005 18:37:57 -0500 Received: from dsl027-180-168.sfo1.dsl.speakeasy.net ([216.27.180.168]:3292 "EHLO sunset.davemloft.net") by vger.kernel.org with ESMTP id S932367AbVKFXh4 (ORCPT ); Sun, 6 Nov 2005 18:37:56 -0500 Date: Sun, 06 Nov 2005 15:36:06 -0800 (PST) Message-Id: <20051106.153606.110773756.davem@davemloft.net> To: akpm@osdl.org Cc: hugh@veritas.com, torvalds@osdl.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] mm: poison struct page for ptlock From: "David S. Miller" In-Reply-To: <20051106151326.63cf16bd.akpm@osdl.org> References: <20051106112838.0d524f65.akpm@osdl.org> <20051106151326.63cf16bd.akpm@osdl.org> 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 Content-Length: 584 Lines: 15 From: Andrew Morton Date: Sun, 6 Nov 2005 15:13:26 -0800 > I doubt if there's much benefit to pagetable-pages-in-slab, really. It helps for D-cache coloring, that's mainly why ppc uses them this way I think. I would do the same on sparc64 if I didn't have to virtually map the page tables for the fast TLB miss handlers. - 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/