From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 41D80C28CF8 for ; Mon, 15 Oct 2018 04:28:15 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id C347A2086A for ; Mon, 15 Oct 2018 04:28:14 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C347A2086A Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=ellerman.id.au Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 42YQRJ4dwczF116 for ; Mon, 15 Oct 2018 15:28:12 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=ellerman.id.au Received: from ozlabs.org (bilbo.ozlabs.org [IPv6:2401:3900:2:1::2]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 42YPr33nBbzF35r for ; Mon, 15 Oct 2018 15:01:07 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=ellerman.id.au Received: by ozlabs.org (Postfix, from userid 1034) id 42YPr26NJYz9sDX; Mon, 15 Oct 2018 15:01:06 +1100 (AEDT) X-powerpc-patch-notification: thanks X-powerpc-patch-commit: 65b9fdadfc4d87e2577b791fb3495cd39c93d8c0 In-Reply-To: <20181009195504.22636.20595.stgit@ltcalpine2-lp9.aus.stglabs.ibm.com> To: Michael Bringmann , linuxppc-dev@lists.ozlabs.org, mwb@linux.vnet.ibm.com From: Michael Ellerman Subject: Re: [v02] powerpc/mobility: Extend start/stop topology update scope Message-Id: <42YPr26NJYz9sDX@ozlabs.org> Date: Mon, 15 Oct 2018 15:01:06 +1100 (AEDT) X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Nathan Fontenot , Juliet Kim , Thomas Falcon , Tyrel Datwyler Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On Tue, 2018-10-09 at 20:12:14 UTC, Michael Bringmann wrote: > The PPC mobility code may receive RTAS requests to perform PRRN > topology changes at any time, including during LPAR migration > operations. In some configurations where the affinity of CPUs > or memory is being changed on that platform, the PRRN requests > may apply or refer to outdated information prior to the complete > update of the device-tree. This patch changes the duration for > which topology updates are suppressed during LPAR migrations from > just the rtas_ibm_suspend_me / 'ibm,suspend-me' call(s) to cover > the entire 'migration_store' operation to allow all changes to > the device-tree to be applied prior to accepting and applying any > PRRN requests. > > For tracking purposes, pr_info notices are added to the functions > start_topology_update() and stop_topology_update() of 'numa.c'. > > Signed-off-by: Michael Bringmann > Reviewed-by: Nathan Fontenot Applied to powerpc next, thanks. https://git.kernel.org/powerpc/c/65b9fdadfc4d87e2577b791fb3495c cheers