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=-5.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=ham 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 72E17C76186 for ; Tue, 23 Jul 2019 22:48:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3345322387 for ; Tue, 23 Jul 2019 22:48:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1563922115; bh=gbzsGHw2mxY/BAkWkM2aeG9d3tCveP7kcq5ewVU8uh4=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=IcwelhJg8S5ZmHIjWTlntjGIjt3RxFQ9Fatq6tBO/4F2vSqn9PAMlgEgnBU/UZnan TASftjiUrzjYRo12byIEVvWe/WiAQ8X1f55B8JFNhvldBWUtFKIC7cw92HwAxuj9yz gcTBdzei+4VUhdXmXUe5ePGEzAWRchD8FK3ZlWhg= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389558AbfGWWse (ORCPT ); Tue, 23 Jul 2019 18:48:34 -0400 Received: from mail-pg1-f194.google.com ([209.85.215.194]:43379 "EHLO mail-pg1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732011AbfGWWsd (ORCPT ); Tue, 23 Jul 2019 18:48:33 -0400 Received: by mail-pg1-f194.google.com with SMTP id f25so20120404pgv.10; Tue, 23 Jul 2019 15:48:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=gcrDqc/0FKS5RAGoI3p47RWGgYc/38e7wO91/0hzW9U=; b=n9wK/DguRoFLTGgPSdnP/e65lyKdLvrZMutcIUo7uorMIpKj5yNx57aNEU/oNupI1o HbXUdM405Zpkdvwzm0PuesmMRixcYEnsOdcCUNq/mT0Z6p1JSc/OgcF5lHnzAWAXqrK7 KsFfrCfYVziAaAmorTCFGKMkHNEvZoiR4N6a/UCU+O9d1OG5PJoNt0D55UC1DM1/VbqS iTj0aINX3tGoT4r5QsoDNNwUhmOjy7Z4AoxFSBsRLsabfLn+VCcC9f9YXNl1A0dSqnZQ /7bbe4xPXPwriCUiL5uKC86V1x0ipnv5ldTuyXozXPkP1j15LHE0tjB0/O1us2jnNtfP PF2g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:from:to:cc:subject:message-id :references:mime-version:content-disposition:in-reply-to:user-agent; bh=gcrDqc/0FKS5RAGoI3p47RWGgYc/38e7wO91/0hzW9U=; b=j/48PR0yrXe3GpG87P5sHOLplGPCbbw3UGIEfGNUCmhniFTACXwCl2e8GkuIWetm60 05JNtZjNZBzKSH08ZhuAcBfy4CSqMnTwu/ivVdZhu6F8uXaP+dsn3HkWn15+XczLTN68 KDyz07Uw+/dY0ZUPmICO2knO0MZoCEy2i84IbXMo8LxlF8CnEKxCh4ezpso6Q/Zxz3EJ ahURFnvNkauZ+gL74rbP7uHKqgHRyZ7Hdak4xQqVcqg2LB1QR3Q+6dFkVYHtFByISU7a ag0EsO4JnhKefLw+mkQTXWvHuQhDn9fPq27sXn3gNd1o51Vcob8Vejcg2dduSQ3gv8hq JfxQ== X-Gm-Message-State: APjAAAXfIzeVViQerrNIN8ue/ca5DvFOA9offxbDAv25uMCUNiIPQljX MZBQGxfJjSBrrm6pR2F41fF8GQFB X-Google-Smtp-Source: APXvYqx7huFHP0vuDKUFHptTjAUxEYu+AiEZ/b1zNRdJNqOxHmrz/x5k1j/QPVgGgW2yF0oHYQvYKA== X-Received: by 2002:a17:90a:2ec1:: with SMTP id h1mr85151553pjs.119.1563922113017; Tue, 23 Jul 2019 15:48:33 -0700 (PDT) Received: from localhost ([2620:10d:c091:500::2:2287]) by smtp.gmail.com with ESMTPSA id b16sm69345877pfo.54.2019.07.23.15.48.32 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 23 Jul 2019 15:48:32 -0700 (PDT) Date: Tue, 23 Jul 2019 15:48:30 -0700 From: Tejun Heo To: Peng Wang Cc: lizefan@huawei.com, hannes@cmpxchg.org, cgroups@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] cgroup: minor tweak for logic to get cgroup css Message-ID: <20190723224830.GH696309@devbig004.ftw2.facebook.com> References: <20190703020749.22988-1-rocking@whu.edu.cn> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190703020749.22988-1-rocking@whu.edu.cn> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jul 03, 2019 at 10:07:49AM +0800, Peng Wang wrote: > We could only handle the case that css exists > and css_try_get_online() fails. > > Signed-off-by: Peng Wang Applied to cgroup/for-5.4. Thanks. -- tejun