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=-3.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS 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 E0F83C2B9F4 for ; Fri, 25 Jun 2021 23:47:23 +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 3455E61954 for ; Fri, 25 Jun 2021 23:47:22 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3455E61954 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 boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4GBYZf3Pdjz3c10 for ; Sat, 26 Jun 2021 09:47:22 +1000 (AEST) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=ellerman.id.au header.i=@ellerman.id.au header.a=rsa-sha256 header.s=201909 header.b=LotHKufo; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=ellerman.id.au (client-ip=203.11.71.1; helo=ozlabs.org; envelope-from=mpe@ellerman.id.au; receiver=) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=ellerman.id.au header.i=@ellerman.id.au header.a=rsa-sha256 header.s=201909 header.b=LotHKufo; dkim-atps=neutral Received: from ozlabs.org (bilbo.ozlabs.org [203.11.71.1]) (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 4GBYZ614bqz309S for ; Sat, 26 Jun 2021 09:46:53 +1000 (AEST) Received: from authenticated.ozlabs.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mail.ozlabs.org (Postfix) with ESMTPSA id 4GBYZ30Gk2z9sTD; Sat, 26 Jun 2021 09:46:50 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ellerman.id.au; s=201909; t=1624664811; bh=mqjtE2ltdfXhC7NObFmQQYR+R0sNSDV94cZ9C2sgJWE=; h=From:To:Cc:Subject:In-Reply-To:References:Date:From; b=LotHKufoVc972Qccm3q9JON0ByoiUAiSMVe5SwPkRZJDpTsdVD4cw+v/nY/gkR8v2 QJNiSgqIiURMw9S1b23S//wFYWf/NEd5LsAPc+rUtf4P2+dr6mXZwPdnvSBmGyu3CY YXQ8Kg9+i4EmilyMjUDOWaVwLB3lpjG7rnQMr0gvN3WxVGUMpMnSAuJt+oVbk9ciPh RL0+3YcIUfM6V1l/gTtnbZRchDGQ0guwYpa7zskCrtrZljUZuLtfmI/9olnNjRsYk/ EU/uxByT8/fsTMz9VgeQUGEGCiiN4ipVhN9rbDj2/tZtSh/cXw5CEvayeXs8EuELwe Z/qQlfPPksi5Q== From: Michael Ellerman To: Christophe Leroy , akpm@linux-foundation.org Subject: Re: [PATCH v2 1/4] mm: pagewalk: Fix walk for hugepage tables In-Reply-To: <217a6b38-a6ac-84d5-e3dc-257331431bb2@csgroup.eu> References:

<874kdm1rim.fsf@mpe.ellerman.id.au> <217a6b38-a6ac-84d5-e3dc-257331431bb2@csgroup.eu> Date: Sat, 26 Jun 2021 09:46:47 +1000 Message-ID: <87pmw9zevs.fsf@mpe.ellerman.id.au> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable 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" Christophe Leroy writes: > Le 25/06/2021 =C3=A0 06:45, Michael Ellerman a =C3=A9crit=C2=A0: >> Christophe Leroy writes: >>> Hi Michael, >>> >>> Le 19/04/2021 =C3=A0 12:47, Christophe Leroy a =C3=A9crit=C2=A0: >>>> 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. >>=20 >> Yeah I decided those were bug fixes so could be taken separately. >>=20 >>> Do you expect Andrew to take patch 1 via mm tree, and then you'll take >>> patch 4 once mm tree is merged ? >>=20 >> I didn't feel I could take patch 1 via the powerpc tree without risking >> conflicts. >>=20 >> 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. Ah duh, sorry. > Maybe Andrew you can take patch 1 now and then Michael you can take patch= 4 at anytime during 5.15=20 > preparation without any conflict risk ? Yeah that would work. >> 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. >>=20 > > I'll first repost patch 1 as standalone and see what happens. Thanks. cheers