From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sat, 5 May 2001 10:42:39 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sat, 5 May 2001 10:42:30 -0400 Received: from zcamail05.zca.compaq.com ([161.114.32.105]:16904 "HELO zcamail05.zca.compaq.com") by vger.kernel.org with SMTP id ; Sat, 5 May 2001 10:42:10 -0400 Message-ID: <3AF4118F.330C3E86@zk3.dec.com> Date: Sat, 05 May 2001 10:43:27 -0400 From: Peter Rival X-Mailer: Mozilla 4.6 [en] (Win98; I) X-Accept-Language: en MIME-Version: 1.0 To: Anton Blanchard Cc: linux-kernel@vger.kernel.org Subject: Re: [PATCH] CPU hot swap for 2.4.3 + s390 support In-Reply-To: <20010505063726.A32232@va.samba.org> 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 Has anyone looked into memory hot swap/hot add support? Especially with systems with Chipkill coming out, this would be great to support... - Pete Anton Blanchard wrote: > Hi, > > You can find a new version of the hot swap cpu patch at: > > http://samba.org/~anton/patches/cpu_hotswap-2.4.3-patch > > The version for s390 (you need to first apply the 2.4.3 kernel > patch available on the IBM s390 Linux website) is at: > > http://samba.org/~anton/patches/cpu_hotswap-2.4.3-patch-s390 > > Many thanks to Heiko Carstens for adding > s390 support and fixing a few bugs in the initial implementation. > You should be able to attach and detach CPUs depending on workload > in your s390 Linux guest images :) > > One of the advantages of this patch is that it removes cpu_logical_map() > and cpu_number_map() which people had a tendency to get wrong. > > It should also be easy to support more than BITS_PER_LONG cpus > as there is no concept of online_cpu_map any more. > > Anton > - > 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/