Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751518AbVKBFkG (ORCPT ); Wed, 2 Nov 2005 00:40:06 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751516AbVKBFkF (ORCPT ); Wed, 2 Nov 2005 00:40:05 -0500 Received: from sv1.valinux.co.jp ([210.128.90.2]:35476 "EHLO sv1.valinux.co.jp") by vger.kernel.org with ESMTP id S1751514AbVKBFkE (ORCPT ); Wed, 2 Nov 2005 00:40:04 -0500 Date: Wed, 02 Nov 2005 14:30:47 +0900 (JST) Message-Id: <20051102.143047.35521963.taka@valinux.co.jp> To: clameter@engr.sgi.com Cc: rob@landley.net, akpm@osdl.org, torvalds@osdl.org, kravetz@us.ibm.com, raybry@mpdtxmail.amd.com, linux-kernel@vger.kernel.org, lee.schermerhorn@hp.com, haveblue@us.ibm.com, magnus.damm@gmail.com, pj@sgi.com, marcelo.tosatti@cyclades.com, kamezawa.hiroyu@jp.fujitsu.com Subject: Re: [PATCH 0/5] Swap Migration V5: Overview From: Hirokazu Takahashi In-Reply-To: References: <20051031192506.100d03fa.akpm@osdl.org> <200511010208.49662.rob@landley.net> X-Mailer: Mew version 2.2 on Emacs 20.7 / Mule 4.0 (HANANOEN) 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: 1418 Lines: 36 Hi, > > > So I'll queue this up for -mm, but I think we need to see an entire > > > hot-remove implementation based on this, and have all the interested > > > parties signed up to it before we can start moving the infrastructure into > > > mainline. > > > > > > Do you think the features which these patches add should be Kconfigurable? This code looks no help for hot-remove. It seems able to handle only pages easily to migrate, while hot-remove has to guarantee all pages can be migrated. > > Yes please. At least something under CONFIG_EMBEDDED to save poor Matt the > > trouble of chopping it out himself. :) > > Ok. We will think of something to switch this off. Hi Christoph, sorry I've been off from lhms for long time. Shall I port the generic memory migration code for hot-remove to -mm tree directly, and add some new interface like migrate_page_to(struct page *from, struct page *to) so this may probably fit for your purpose. The code is still in Dave's mhp1 tree waiting for being merged to -mm tree. The port will be easy because the migration code is independent to the memory hotplug code. The core code isn't so big. Thanks, Hirokazu Takahashi. - 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/