Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760902AbZDBPV4 (ORCPT ); Thu, 2 Apr 2009 11:21:56 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753417AbZDBPVq (ORCPT ); Thu, 2 Apr 2009 11:21:46 -0400 Received: from mx2.redhat.com ([66.187.237.31]:36148 "EHLO mx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750732AbZDBPVp (ORCPT ); Thu, 2 Apr 2009 11:21:45 -0400 Date: Thu, 2 Apr 2009 08:20:45 -0700 From: Chris Wright To: Izik Eidus Cc: Chris Wright , Anthony Liguori , Andrea Arcangeli , linux-kernel@vger.kernel.org, kvm@vger.kernel.org, linux-mm@kvack.org, avi@redhat.com, riel@redhat.com, jeremy@goop.org, mtosatti@redhat.com, hugh@veritas.com, corbet@lwn.net, yaniv@redhat.com, dmonakhov@openvz.org Subject: Re: [PATCH 5/4] update ksm userspace interfaces Message-ID: <20090402152045.GB10392@x200.localdomain> References: <20090331150218.GS9137@random.random> <49D23224.9000903@codemonkey.ws> <20090331151845.GT9137@random.random> <49D23CD1.9090208@codemonkey.ws> <20090331162525.GU9137@random.random> <49D24A02.6070000@codemonkey.ws> <20090402012215.GE1117@x200.localdomain> <49D424AF.3090806@codemonkey.ws> <20090402053114.GF1117@x200.localdomain> <49D4BE64.8020508@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <49D4BE64.8020508@redhat.com> User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 839 Lines: 19 * Izik Eidus (ieidus@redhat.com) wrote: > So if we move into madvice and we remove the get_task_mm() usage, we > will have to add notification to exit_mm() so ksm will know it should > stop using this mm strcture, and drop it from all the trees data... Technically it's needed already. This example is currently semi-broken: main() ksm_register_memory execve() <-- no notifiction unless fd is proactively marked cloexec (which it isn't) new proc...do stuff (it's ->mm isn't registered) eventually exit() <-- close fd and clear up the old stale ->mm registered -- 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/