From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753807AbXCSMFB (ORCPT ); Mon, 19 Mar 2007 08:05:01 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753812AbXCSMFB (ORCPT ); Mon, 19 Mar 2007 08:05:01 -0400 Received: from agminet01.oracle.com ([141.146.126.228]:14633 "EHLO agminet01.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753807AbXCSMFA (ORCPT ); Mon, 19 Mar 2007 08:05:00 -0400 Date: Mon, 19 Mar 2007 05:04:21 -0700 From: Bill Irwin To: Nick Piggin Cc: Blaisorblade , Bill Irwin , Ingo Molnar , Andrew Morton , Linux Memory Management , Linux Kernel , Benjamin Herrenschmidt Subject: Re: [patch 4/6] mm: merge populate and nopage into fault (fixes nonlinear) Message-ID: <20070319120421.GZ18774@holomorphy.com> Mail-Followup-To: Bill Irwin , Nick Piggin , Blaisorblade , Ingo Molnar , Andrew Morton , Linux Memory Management , Linux Kernel , Benjamin Herrenschmidt References: <20070221023735.6306.83373.sendpatchset@linux.site> <200703130001.13467.blaisorblade@yahoo.it> <20070313011904.GA2746@wotan.suse.de> <200703171317.01074.blaisorblade@yahoo.it> <20070318025010.GA1671@wotan.suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20070318025010.GA1671@wotan.suse.de> User-Agent: Mutt/1.5.11 X-Brightmail-Tracker: AAAAAQAAAAI= X-Brightmail-Tracker: AAAAAQAAAAI= X-Whitelist: TRUE X-Whitelist: TRUE Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Sun, Mar 18, 2007 at 03:50:10AM +0100, Nick Piggin wrote: > Yes, that should be the case. So would this mean that nonlinear protections > don't work on regular files? I guess that's OK if Oracle and UML both use > tmpfs/shm? Sometimes ramfs is also used in the Oracle case. I presume that's even simpler than tmpfs. (Hugetlb, while also used in for the same general buffer pool, is never used in conjunction with remap_file_pages() etc.) -- wli