Received: by 2002:a25:e74b:0:0:0:0:0 with SMTP id e72csp1589583ybh; Mon, 20 Jul 2020 02:07:46 -0700 (PDT) X-Google-Smtp-Source: ABdhPJwGbYpipQKLw8FOkC9o7YEvktF7NMz5/TvGwSLOrMHR0SwR0k3nwOJGCK+sLooyPIKbWzWY X-Received: by 2002:a17:906:af6d:: with SMTP id os13mr19184299ejb.57.1595236065803; Mon, 20 Jul 2020 02:07:45 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1595236065; cv=none; d=google.com; s=arc-20160816; b=mYtdnj8f4akjmRxi67IBQKcSquvZFCIjLZC46JIAl4WLy5xPxPKm1m8Ys8HirhcZAd mpLwQK5qDp+cGo7RItq9rHxt1ozb2Z6sKq+g5glAfy3DMBK1jtb94HOfdypPc4ElOykf 2u3XdvArkyzgP5eoVuwfYeqjVyyeK4znssrmmeLW51zym2SCWtVf6uBnx73IXywXGfMM g/ikJMKv+MIEDMi5SVWAfQn0XBpcj2HLzk5f9sP1YKaIVyT+5o9B+8lW5QnnMKTCjsev yFRvLAbC1I5GXQZLbsVCu9iuSwz7vx1vrSISWsGviI7hT6sLbbUNKMIJqK1vQ5Tp/CNN 1M0w== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:in-reply-to :mime-version:user-agent:date:message-id:from:references:cc:to :subject; bh=okR072PVKPdplCaDzKdzSQu8dnLvWlSWJHSNhx4Hs/8=; b=gk7g39p9CPjN5afT6QvxHK3Qy46VXi7PTT1b9UizJrcfgJ9AotGSEwT1ttZmX7qzeT 20fAPSh0zK040uSECdbbBn0KSGZKySJ/Smmnf9GHOIt7hm5bGKdFypQ+ONmTHNQXyYSm /uo0oQ8tHIniDZ6N0BiRctRvCkr+aVcgomFSIzet06sHtwZ1bCLlliZRuobGu3M/ohqi 5aCuRfz5zO0Jank8GJn5sN80ir0tyZGgf+Avq1ubz2qEqkYsqGTGGfLYBHRFbhPDFhw0 Uax1CrLXksfebWWF8qcaThR3OYxue6ZozYpTDv0nqQ2KbOxklqJcdY8JU7c8k5SdHflr GJzw== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=alibaba.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id u11si10488945edy.592.2020.07.20.02.07.23; Mon, 20 Jul 2020 02:07:45 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=alibaba.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728041AbgGTJFB (ORCPT + 99 others); Mon, 20 Jul 2020 05:05:01 -0400 Received: from out4436.biz.mail.alibaba.com ([47.88.44.36]:45371 "EHLO out4436.biz.mail.alibaba.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726030AbgGTJFB (ORCPT ); Mon, 20 Jul 2020 05:05:01 -0400 X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R201e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01e01422;MF=alex.shi@linux.alibaba.com;NM=1;PH=DS;RN=18;SR=0;TI=SMTPD_---0U3FgSDJ_1595235887; Received: from IT-FVFX43SYHV2H.local(mailfrom:alex.shi@linux.alibaba.com fp:SMTPD_---0U3FgSDJ_1595235887) by smtp.aliyun-inc.com(127.0.0.1); Mon, 20 Jul 2020 17:04:48 +0800 Subject: Re: [PATCH v16 14/22] mm/thp: add tail pages into lru anyway in split_huge_page() To: "Kirill A. Shutemov" Cc: akpm@linux-foundation.org, mgorman@techsingularity.net, tj@kernel.org, hughd@google.com, khlebnikov@yandex-team.ru, daniel.m.jordan@oracle.com, yang.shi@linux.alibaba.com, willy@infradead.org, hannes@cmpxchg.org, lkp@intel.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org, cgroups@vger.kernel.org, shakeelb@google.com, iamjoonsoo.kim@lge.com, richard.weiyang@gmail.com, =?UTF-8?Q?Mika_Penttil=c3=a4?= References: <1594429136-20002-1-git-send-email-alex.shi@linux.alibaba.com> <1594429136-20002-15-git-send-email-alex.shi@linux.alibaba.com> <20200720084931.jusstogio6j74uhs@box> From: Alex Shi Message-ID: Date: Mon, 20 Jul 2020 17:04:46 +0800 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:68.0) Gecko/20100101 Thunderbird/68.7.0 MIME-Version: 1.0 In-Reply-To: <20200720084931.jusstogio6j74uhs@box> Content-Type: text/plain; charset=gbk Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org ?? 2020/7/20 ????4:49, Kirill A. Shutemov ะด??: >> >> Split_huge_page() must start with PageLRU(head), and we are holding the >> lru_lock here. If the head was cleared lru bit unexpected, tracking it. >> >> Signed-off-by: Alex Shi > Reviewed-by: Kirill A. Shutemov Hi Kirill, Millions thanks for review! Alex