Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758204Ab1EZSjN (ORCPT ); Thu, 26 May 2011 14:39:13 -0400 Received: from mx3.mail.elte.hu ([157.181.1.138]:37915 "EHLO mx3.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758105Ab1EZSjL (ORCPT ); Thu, 26 May 2011 14:39:11 -0400 Date: Thu, 26 May 2011 20:38:06 +0200 From: Ingo Molnar To: Peter Zijlstra Cc: Avi Kivity , James Morris , Linus Torvalds , Kees Cook , Thomas Gleixner , Will Drewry , Steven Rostedt , linux-kernel@vger.kernel.org, gnatapov@redhat.com, Chris Wright , Pekka Enberg Subject: Re: [PATCH 3/5] v2 seccomp_filters: Enable ftrace-based system call filtering Message-ID: <20110526183806.GB2490@elte.hu> References: <20110526082451.GB26775@elte.hu> <4DDE1419.3000708@redhat.com> <20110526093040.GB19536@elte.hu> <4DDE31D6.4070209@redhat.com> <20110526113842.GA27618@elte.hu> <4DDE96B7.8030006@redhat.com> <20110526181554.GB3572@elte.hu> <1306434167.2497.92.camel@laptop> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1306434167.2497.92.camel@laptop> User-Agent: Mutt/1.5.20 (2009-08-17) X-ELTE-SpamScore: -2.0 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-2.0 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.3.1 -2.0 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 972 Lines: 28 * Peter Zijlstra wrote: > On Thu, 2011-05-26 at 20:15 +0200, Ingo Molnar wrote: > > > Incidentally i suggested this to Pekka just yesterday: i think we > > should consider guest RAM images to be named files on the local > > filesystem (prefixed with the disk image's name or so, for easy > > identification), > > That'll break THP and KSM, both rely and work on anon only. No reason they should be limited to anon only though. Also, don't we have some sort of anonfs, from which we could get an fd, which, if mmap()-ed produces regular anonymous shared memory? That fd could be passed over to other processes, who could then mmap() the new piece of shared-anon memory as well. Thanks, Ingo -- 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/