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=-5.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=no 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 849A2C2B9F4 for ; Fri, 25 Jun 2021 04:57:26 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (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 CF83D61419 for ; Fri, 25 Jun 2021 04:57:25 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CF83D61419 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=csgroup.eu Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4GB4Vs2cl9z3bvV for ; Fri, 25 Jun 2021 14:57:25 +1000 (AEST) Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=csgroup.eu (client-ip=93.17.236.30; helo=pegase1.c-s.fr; envelope-from=christophe.leroy@csgroup.eu; receiver=) Received: from pegase1.c-s.fr (pegase1.c-s.fr [93.17.236.30]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4GB4VS5yK4z2xZJ for ; Fri, 25 Jun 2021 14:57:02 +1000 (AEST) Received: from localhost (mailhub3.si.c-s.fr [192.168.12.233]) by localhost (Postfix) with ESMTP id 4GB4VK1WGnzBC7l; Fri, 25 Jun 2021 06:56:57 +0200 (CEST) X-Virus-Scanned: amavisd-new at c-s.fr Received: from pegase1.c-s.fr ([192.168.12.234]) by localhost (pegase1.c-s.fr [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 2g-zeAQYg2tJ; Fri, 25 Jun 2021 06:56:57 +0200 (CEST) Received: from messagerie.si.c-s.fr (messagerie.si.c-s.fr [192.168.25.192]) by pegase1.c-s.fr (Postfix) with ESMTP id 4GB4VK0Z0yzBC7h; Fri, 25 Jun 2021 06:56:57 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by messagerie.si.c-s.fr (Postfix) with ESMTP id EB1638B7F4; Fri, 25 Jun 2021 06:56:55 +0200 (CEST) X-Virus-Scanned: amavisd-new at c-s.fr Received: from messagerie.si.c-s.fr ([127.0.0.1]) by localhost (messagerie.si.c-s.fr [127.0.0.1]) (amavisd-new, port 10023) with ESMTP id WESD5kl9hnOU; Fri, 25 Jun 2021 06:56:55 +0200 (CEST) Received: from [192.168.4.90] (unknown [192.168.4.90]) by messagerie.si.c-s.fr (Postfix) with ESMTP id 0E8C58B7F0; Fri, 25 Jun 2021 06:56:51 +0200 (CEST) Subject: Re: [PATCH v2 1/4] mm: pagewalk: Fix walk for hugepage tables To: Michael Ellerman , akpm@linux-foundation.org References:

<874kdm1rim.fsf@mpe.ellerman.id.au> From: Christophe Leroy Message-ID: <217a6b38-a6ac-84d5-e3dc-257331431bb2@csgroup.eu> Date: Fri, 25 Jun 2021 06:56:51 +0200 User-Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 MIME-Version: 1.0 In-Reply-To: <874kdm1rim.fsf@mpe.ellerman.id.au> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: fr Content-Transfer-Encoding: 8bit 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: linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, Steven Price , linux-mm@kvack.org, Oliver O'Halloran , Paul Mackerras , linuxppc-dev@lists.ozlabs.org, dja@axtens.net Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" Le 25/06/2021 à 06:45, Michael Ellerman a écrit : > Christophe Leroy writes: >> Hi Michael, >> >> Le 19/04/2021 à 12:47, Christophe Leroy a écrit : >>> Pagewalk ignores hugepd entries and walk down the tables >>> as if it was traditionnal entries, leading to crazy result. >>> >>> Add walk_hugepd_range() and use it to walk hugepage tables. >> >> I see you took patch 2 and 3 of the series. > > Yeah I decided those were bug fixes so could be taken separately. > >> Do you expect Andrew to take patch 1 via mm tree, and then you'll take >> patch 4 once mm tree is merged ? > > I didn't feel I could take patch 1 via the powerpc tree without risking > conflicts. > > Andrew could take patch 1 and 4 via mm, though he might not want to pick > them up this late. Patch 4 needs patches 2 and 3 and doesn't apply without them so it is not that easy. Maybe Andrew you can take patch 1 now and then Michael you can take patch 4 at anytime during 5.15 preparation without any conflict risk ? > > I guess step one would be to repost 1 and 4 as a new series. Either they > can go via mm, or for 5.15 I could probably take them both as long as I > pick them up early enough. > I'll first repost patch 1 as standalone and see what happens. Christophe