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=-5.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,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 86166C4338F for ; Mon, 9 Aug 2021 01:56:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6DAED60E52 for ; Mon, 9 Aug 2021 01:56:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232677AbhHIB4h (ORCPT ); Sun, 8 Aug 2021 21:56:37 -0400 Received: from szxga01-in.huawei.com ([45.249.212.187]:16996 "EHLO szxga01-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229942AbhHIB4g (ORCPT ); Sun, 8 Aug 2021 21:56:36 -0400 Received: from dggeme703-chm.china.huawei.com (unknown [172.30.72.53]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4GjfGt3WBJzZyvg; Mon, 9 Aug 2021 09:52:38 +0800 (CST) Received: from [10.174.179.25] (10.174.179.25) by dggeme703-chm.china.huawei.com (10.1.199.99) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2176.2; Mon, 9 Aug 2021 09:56:15 +0800 Subject: Re: [PATCH v2 3/3] mm, memcg: get rid of percpu_charge_mutex lock To: Andrew Morton CC: , , , , , , , , , , , References: <20210807082835.61281-1-linmiaohe@huawei.com> <20210807082835.61281-4-linmiaohe@huawei.com> <20210807115625.b09fdf35b0251206b252e19a@linux-foundation.org> From: Miaohe Lin Message-ID: <4eb3fd44-a662-7593-d493-e18ce83dead2@huawei.com> Date: Mon, 9 Aug 2021 09:56:14 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.6.0 MIME-Version: 1.0 In-Reply-To: <20210807115625.b09fdf35b0251206b252e19a@linux-foundation.org> Content-Type: text/plain; charset="utf-8" Content-Language: en-US Content-Transfer-Encoding: 7bit X-Originating-IP: [10.174.179.25] X-ClientProxiedBy: dggems702-chm.china.huawei.com (10.3.19.179) To dggeme703-chm.china.huawei.com (10.1.199.99) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2021/8/8 2:56, Andrew Morton wrote: > On Sat, 7 Aug 2021 16:28:35 +0800 Miaohe Lin wrote: > >> We should get rid of percpu_charge_mutex lock as Johannes Weiner said, > > I'll skip this one for now - it all seems rather uncertain. Sure, many thanks for doing this. > . >