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 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A0A87C433FE for ; Tue, 12 Oct 2021 01:44:25 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 22F02608FB for ; Tue, 12 Oct 2021 01:44:25 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 22F02608FB Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kvack.org Received: by kanga.kvack.org (Postfix) id 8F189900002; Mon, 11 Oct 2021 21:44:24 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 87A776B0071; Mon, 11 Oct 2021 21:44:24 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 71B6F900002; Mon, 11 Oct 2021 21:44:24 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0099.hostedemail.com [216.40.44.99]) by kanga.kvack.org (Postfix) with ESMTP id 63C316B006C for ; Mon, 11 Oct 2021 21:44:24 -0400 (EDT) Received: from smtpin13.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id 0C9492922D for ; Tue, 12 Oct 2021 01:44:24 +0000 (UTC) X-FDA: 78686090448.13.474AD9B Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [216.205.24.124]) by imf23.hostedemail.com (Postfix) with ESMTP id 9E1B99001471 for ; Tue, 12 Oct 2021 01:44:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1634003063; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=N7XuxV1xdve3zt5mwi5zf9rSsN0pawUAPW+pIisdSIo=; b=DKJp9gGtU+WWxcD3Dt5mO6jtEUYp/Z8qmiy9OJHy2jOV4kYQ22YWqvMvigp2ZMQWaWKmWv vC7rgV+wHbAm4eIda0roRrO6iNOTTCT6mZOqh2THEXbgBabU2P64KeBIRjkwLXKNZaVTCn LzjUtSyAquwmIWWuMzsuvYMCHQirf28= Received: from mail-pl1-f200.google.com (mail-pl1-f200.google.com [209.85.214.200]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-155-6w3sVJNHNxSx4guJGgFK4w-1; Mon, 11 Oct 2021 21:44:22 -0400 X-MC-Unique: 6w3sVJNHNxSx4guJGgFK4w-1 Received: by mail-pl1-f200.google.com with SMTP id n9-20020a170902968900b0013f23b51142so2574325plp.8 for ; Mon, 11 Oct 2021 18:44:21 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=N7XuxV1xdve3zt5mwi5zf9rSsN0pawUAPW+pIisdSIo=; b=lHs+bPPrAPQ8BKKSYDlg8O2zVkZK/cOO1mGYpiKdGuuODjS8YceAhSuFZXRuDR441P Ngcl3BG45DRTN4hV4bfWnbGM9f3nzbnMqasrDS9spRR/58NHgI5XRKUC0rbVDUsGsGKI 0YKyZ0qGnbZPHM7g/XEneU6IDQZbemPB0p6lmTMQk5q0JCpP6F8BCyXsd5amwmxq5d9x g/C/yvhU4ZPWVOxY1UZ1w8Q/zASnmfT0J1VchtwmoJg4z4/nTd0tKuRKRMcG7eW8kig4 OxCA0Ekv+PkL7wJuvDGkUzShuTPDPDYiUOhGGSZJ6UoQFWeTi8R7QPMxnFnI/bCZqPiW GLNg== X-Gm-Message-State: AOAM531C/bsARjEgLEBE50wbHWajUift2dxbbaqalfmBMvQwFFpvqKf6 GCIn0EF/Pd+Lb97SJFo8C4HSMsbWZR7Dd4D4bUUMEGGXFkK3NnSdL2tVNYTAt1c4+zPuJ+87Bz7 yEAR/5ii3ReI= X-Received: by 2002:a17:90b:3852:: with SMTP id nl18mr2829331pjb.9.1634003060510; Mon, 11 Oct 2021 18:44:20 -0700 (PDT) X-Google-Smtp-Source: ABdhPJwlbuOxtzFHegnIMLUhs4POPvF85B+TNSTe0D0W5qKedOJQ0nmMQPvf79G11R3u3blaCXq0jw== X-Received: by 2002:a17:90b:3852:: with SMTP id nl18mr2829308pjb.9.1634003060166; Mon, 11 Oct 2021 18:44:20 -0700 (PDT) Received: from t490s ([209.132.188.80]) by smtp.gmail.com with ESMTPSA id a22sm9062988pfg.61.2021.10.11.18.44.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 11 Oct 2021 18:44:19 -0700 (PDT) Date: Tue, 12 Oct 2021 09:44:12 +0800 From: Peter Xu To: Yang Shi Cc: HORIGUCHI =?utf-8?B?TkFPWUEo5aCA5Y+jIOebtOS5nyk=?= , Hugh Dickins , "Kirill A. Shutemov" , Matthew Wilcox , Oscar Salvador , Andrew Morton , Linux MM , Linux FS-devel Mailing List , Linux Kernel Mailing List Subject: Re: [v3 PATCH 2/5] mm: filemap: check if THP has hwpoisoned subpage for PMD page fault Message-ID: References: <20210930215311.240774-1-shy828301@gmail.com> <20210930215311.240774-3-shy828301@gmail.com> MIME-Version: 1.0 In-Reply-To: X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=utf-8 Content-Disposition: inline X-Rspamd-Server: rspam03 X-Rspamd-Queue-Id: 9E1B99001471 X-Stat-Signature: 1n6onxi5yj75h3mhacmfuehjw98d1ryg Authentication-Results: imf23.hostedemail.com; dkim=pass header.d=redhat.com header.s=mimecast20190719 header.b=DKJp9gGt; dmarc=pass (policy=none) header.from=redhat.com; spf=none (imf23.hostedemail.com: domain of peterx@redhat.com has no SPF policy when checking 216.205.24.124) smtp.mailfrom=peterx@redhat.com X-HE-Tag: 1634003063-827786 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Mon, Oct 11, 2021 at 08:55:26PM -0400, Peter Xu wrote: > Another thing is I noticed soft_offline_in_use_page() will still ignore file > backed split. I'm not sure whether it means we'd better also handle that case > as well, so shmem thp can be split there too? Please ignore this paragraph - I somehow read "!PageHuge(page)" as "PageAnon(page)"... So I think patch 5 handles soft offline too. -- Peter Xu