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=-18.3 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_IN_DEF_DKIM_WL autolearn=unavailable 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 639B5C433DB for ; Mon, 25 Jan 2021 00:08:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2EAF822BE9 for ; Mon, 25 Jan 2021 00:08:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726497AbhAYAHI (ORCPT ); Sun, 24 Jan 2021 19:07:08 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57648 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726477AbhAYAG5 (ORCPT ); Sun, 24 Jan 2021 19:06:57 -0500 Received: from mail-pf1-x436.google.com (mail-pf1-x436.google.com [IPv6:2607:f8b0:4864:20::436]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C29C2C0613D6 for ; Sun, 24 Jan 2021 16:06:16 -0800 (PST) Received: by mail-pf1-x436.google.com with SMTP id y205so7404232pfc.5 for ; Sun, 24 Jan 2021 16:06:16 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:from:to:cc:subject:in-reply-to:message-id:references :mime-version; bh=lJAlWsxHbl8p3VKZjZPTI5PoyuI0xzJ3qlZ40HECelI=; b=sSZCCC1Kl7/xkG5bjekS3mF2Id9siUna4XWqSxx9E3gjnH1n78FC3bXiv7+Zmr6bqf x19qmrxqdt8IyP7aZzmZY5QAfybRuILE5gfp0RzZ7bUiSqeocAaI3U83eEciulKcJSPv hMHkK7d3sLKGt20HprUuHS0E/5LMWtkIyVhdPDJ/rVNs7tsi8x+I192TUOp6IN7Hofys QXd7ty1ThgdOgAerm1Xa/wRoK150fYvP/iq3cUN3L1wlYSkqDeq3oY0BapKgNdcNkuBh 9M/JgN8wyWNYHzxSDeOWmC1yiYYj4rE/ogBZ8HrhhNHqEZyv9BwsEmjgqB61o21ByrAu mgZQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:in-reply-to:message-id :references:mime-version; bh=lJAlWsxHbl8p3VKZjZPTI5PoyuI0xzJ3qlZ40HECelI=; b=XgKA4BI0bYYQpJph5r5QCIEcPr4NkoFqpoqLAhnED+GQ32zHrzfSYtEJe6+4a54cu7 83mXdPYfmBF84vbP/EL7VEiH/ucOtCx7nkwdamnciviVus/J2zmo8CNe+q/9BE0ZB8sI +s3trHLOyhRRN9q2EQ+A5UVnSYTAAIolYTCCGKrxj2DjK2qtFDnPMZ7sCGTBsCybE71B ws0941fY6wdVLXsRYPyz3xATbWpV5vx8fX4qdAJomZ+PtuqC8KsFWtJYw2GKwU/oWnFF JHezDP2CAxdkM63YFk8TUTJgnRQmNQ8HUEzyvROtewZYItCS+MNrVl3YY/EGMg1HlxB6 qOcw== X-Gm-Message-State: AOAM533SfGHgezfHmuuns/v/iFw4HjZ67HsoFU64itE822msrPFmdRxj XeNeMmQz8PjoSv2jxwnX38+AOQ== X-Google-Smtp-Source: ABdhPJzU7elejkU9dKdelvpxBIdm/wMQK6qPXW83kLCYhFsKznYIgbA1Dya8jGqRTCjGICyRt2WiHA== X-Received: by 2002:a65:5884:: with SMTP id d4mr1500656pgu.303.1611533176201; Sun, 24 Jan 2021 16:06:16 -0800 (PST) Received: from [2620:15c:17:3:4a0f:cfff:fe51:6667] ([2620:15c:17:3:4a0f:cfff:fe51:6667]) by smtp.gmail.com with ESMTPSA id e20sm1056397pgr.48.2021.01.24.16.06.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 24 Jan 2021 16:06:15 -0800 (PST) Date: Sun, 24 Jan 2021 16:06:14 -0800 (PST) From: David Rientjes To: Muchun Song cc: corbet@lwn.net, mike.kravetz@oracle.com, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, x86@kernel.org, hpa@zytor.com, dave.hansen@linux.intel.com, luto@kernel.org, peterz@infradead.org, viro@zeniv.linux.org.uk, akpm@linux-foundation.org, paulmck@kernel.org, mchehab+huawei@kernel.org, pawan.kumar.gupta@linux.intel.com, rdunlap@infradead.org, oneukum@suse.com, anshuman.khandual@arm.com, jroedel@suse.de, almasrymina@google.com, willy@infradead.org, osalvador@suse.de, mhocko@suse.com, song.bao.hua@hisilicon.com, david@redhat.com, naoya.horiguchi@nec.com, duanxiongchun@bytedance.com, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-fsdevel@vger.kernel.org Subject: Re: [PATCH v13 06/12] mm: hugetlb: set the PageHWPoison to the raw error page In-Reply-To: <20210117151053.24600-7-songmuchun@bytedance.com> Message-ID: <88a384ba-8487-c66b-e7b-eb6055e3775@google.com> References: <20210117151053.24600-1-songmuchun@bytedance.com> <20210117151053.24600-7-songmuchun@bytedance.com> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Precedence: bulk List-ID: X-Mailing-List: linux-doc@vger.kernel.org On Sun, 17 Jan 2021, Muchun Song wrote: > Because we reuse the first tail vmemmap page frame and remap it > with read-only, we cannot set the PageHWPosion on a tail page. > So we can use the head[4].private to record the real error page > index and set the raw error page PageHWPoison later. > > Signed-off-by: Muchun Song > Reviewed-by: Oscar Salvador Acked-by: David Rientjes