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=-7.0 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE, SPF_PASS,UNPARSEABLE_RELAY,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 92FCEC433E0 for ; Sun, 2 Aug 2020 13:24:53 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id D8EEA2075A for ; Sun, 2 Aug 2020 13:24:52 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D8EEA2075A Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.alibaba.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 644858D00B4; Sun, 2 Aug 2020 09:24:52 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 5CF098D00AA; Sun, 2 Aug 2020 09:24:52 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 4BE418D00B4; Sun, 2 Aug 2020 09:24:52 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0040.hostedemail.com [216.40.44.40]) by kanga.kvack.org (Postfix) with ESMTP id 33A1E8D00AA for ; Sun, 2 Aug 2020 09:24:52 -0400 (EDT) Received: from smtpin02.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id 9C778180AD80F for ; Sun, 2 Aug 2020 13:24:51 +0000 (UTC) X-FDA: 77105698782.02.park15_3d0fd5526f95 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin02.hostedemail.com (Postfix) with ESMTP id 79A5E10097AA4 for ; Sun, 2 Aug 2020 13:24:51 +0000 (UTC) X-HE-Tag: park15_3d0fd5526f95 X-Filterd-Recvd-Size: 2165 Received: from out30-133.freemail.mail.aliyun.com (out30-133.freemail.mail.aliyun.com [115.124.30.133]) by imf31.hostedemail.com (Postfix) with ESMTP for ; Sun, 2 Aug 2020 13:24:49 +0000 (UTC) X-Alimail-AntiSpam:AC=PASS;BC=-1|-1;BR=01201311R211e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01e07425;MF=alex.shi@linux.alibaba.com;NM=1;PH=DS;RN=12;SR=0;TI=SMTPD_---0U4TmhiN_1596374683; Received: from IT-FVFX43SYHV2H.local(mailfrom:alex.shi@linux.alibaba.com fp:SMTPD_---0U4TmhiN_1596374683) by smtp.aliyun-inc.com(127.0.0.1); Sun, 02 Aug 2020 21:24:43 +0800 Subject: Re: [PATCH 4/4] mm/thp: narrow lru locking To: Matthew Wilcox Cc: Andrew Morton , Wei Yang , Hugh Dickins , "Kirill A. Shutemov" , Andrea Arcangeli , Johannes Weiner , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Thomas Gleixner , Sebastian Andrzej Siewior , Peter Zijlstra References: <1596254957-22560-1-git-send-email-alex.shi@linux.alibaba.com> <1596254957-22560-4-git-send-email-alex.shi@linux.alibaba.com> <20200802110925.GW23808@casper.infradead.org> From: Alex Shi Message-ID: <2504ea84-110c-cf8e-d2f7-0aab97f6121a@linux.alibaba.com> Date: Sun, 2 Aug 2020 21:24:32 +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: <20200802110925.GW23808@casper.infradead.org> Content-Type: text/plain; charset=gbk X-Rspamd-Queue-Id: 79A5E10097AA4 X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam01 Content-Transfer-Encoding: quoted-printable 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: =D4=DA 2020/8/2 =CF=C2=CE=E77:09, Matthew Wilcox =D0=B4=B5=C0: > You're playing games with separating interrupt disabling from spinlocks= . > Have you got any feedback from -rt people on this? Is there other suggestions to remove local_irq_disable? Just check again on kernel/mm directory on linux-next. there are still much local_irq_disable there. Guess we need a final solution instead of block new one. Thanks Alex