Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753166AbYKKVWa (ORCPT ); Tue, 11 Nov 2008 16:22:30 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750966AbYKKVWV (ORCPT ); Tue, 11 Nov 2008 16:22:21 -0500 Received: from nlpi025.sbcis.sbc.com ([207.115.36.54]:57003 "EHLO nlpi025.prodigy.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750808AbYKKVWU (ORCPT ); Tue, 11 Nov 2008 16:22:20 -0500 Date: Tue, 11 Nov 2008 15:21:45 -0600 (CST) From: Christoph Lameter X-X-Sender: cl@quilx.com To: Izik Eidus cc: Andrew Morton , linux-kernel@vger.kernel.org, linux-mm@kvack.org, kvm@vger.kernel.org, aarcange@redhat.com, chrisw@redhat.com, avi@redhat.com, izike@qumranet.com Subject: Re: [PATCH 2/4] Add replace_page(), change the mapping of pte from one page into another In-Reply-To: <4919F1C0.2050009@redhat.com> Message-ID: References: <1226409701-14831-1-git-send-email-ieidus@redhat.com> <1226409701-14831-2-git-send-email-ieidus@redhat.com> <1226409701-14831-3-git-send-email-ieidus@redhat.com> <20081111114555.eb808843.akpm@linux-foundation.org> <4919F1C0.2050009@redhat.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Spam-Score: -2.6 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 745 Lines: 17 On Tue, 11 Nov 2008, Izik Eidus wrote: > yes but it replace it with kernel allocated page. > > page migration already kinda does that. Is there common ground? > > > > > page migration as far as i saw cant migrate anonymous page into kernel page. > if you want we can change page_migration to do that, but i thought you will > rather have ksm changes separate. What do you mean by kernel page? The kernel can allocate a page and then point a user space pte to it. That is how page migration works. -- 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/