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=-1.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 0757CC43331 for ; Tue, 24 Mar 2020 18:26:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D8F3920775 for ; Tue, 24 Mar 2020 18:26:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1585074381; bh=94PgeoB+p2WY6XFVXPILv+rmdwQzZBt2xnAqRW92a4U=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=t8yNN7ZdG8FUH7eQ5S3i8pPLdIza1DN7MQtNjS8DYA5usCoN91Gnu3Fabpv7ewanF wz2Cn5Ehgj0BVQxbGf07APFM+gDmGsLTjA2jjVsDYnJUDWHqVKHTrarz0gb/6C3dkm GouCQ5fcOolVZOkoRL6A9tiL3Qc+u0Phh5PNXcAw= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727590AbgCXS0S (ORCPT ); Tue, 24 Mar 2020 14:26:18 -0400 Received: from mail-qk1-f196.google.com ([209.85.222.196]:36645 "EHLO mail-qk1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727443AbgCXS0S (ORCPT ); Tue, 24 Mar 2020 14:26:18 -0400 Received: by mail-qk1-f196.google.com with SMTP id d11so20367676qko.3; Tue, 24 Mar 2020 11:26:17 -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; bh=VKDCXEZ42UY913CTtFDT6Viou96lkFeyc6FJl6g05Vg=; b=AkI4Xkx1tlFJcJ9dNLecf4+W/yiyVYQzQJjxQEP3fsUyxtJlsDPsp2922A08nOHUqt Raz6pWjrCl2Hhym8BGoSwUNuuPSH9d7vYfRnfoGLRBR/CRLOXfi4zD6n1d5fSUpIvQFH G5SdqFXcT/F1KCp2Jmv8aiswNEn5y/cJFvk9n9q+ccGDLGwlnioNCKkDSHsNmzL95JtU pURc9Y4b8prbYmhRvfO+VUUnf+r33J9ni46guh0TYipbbdvAZhJ7v5nxJcAVMvEu04Wz kEBSWZbCndALY8ZvcfA6P1KQIOyEPipSsEPBC1fuESUBy2/Xy1bELlSr4o1v/OGJeB1M HkyQ== 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; bh=VKDCXEZ42UY913CTtFDT6Viou96lkFeyc6FJl6g05Vg=; b=YK4zi2vsEO8fslwdFCmHmI44nU73DBTi5VB68l9zG+KPb/Bn+HzE8mLoj66fQ4CbKT V5rKgLIe43efmAT6PrI083fz6nAf7OkdQyUuVKlkpzr57ga9pBzHOUi6vfn10Su5+g5S +UO594/OVoJ/fMHgNiH1RPuexbewUlDquIvrHDvtURtW4o5ptByqkoDlHgFv6uDuV8xc 0yOaYIoCpGzDkI1v48iwPtA9/zXwy96HKZ0BpTYqrtCCUWZ2B99czqp88AfmBgIUMXLJ vFD4BCpScYARiHhvkgclYj/CoeXgQda4Ykh/63flEkfl3Iv8nziUW9e3G0pYvusoEXtE 2t3Q== X-Gm-Message-State: ANhLgQ04MVZBMeaWRp2YDl8SmMzX5PYQXt/8mecEQ7St1nL0U/50l8jj dcmkp7HCqUHLF3n4WyY0VM10rYHqGeo= X-Google-Smtp-Source: ADFU+vtMSJC8sWVJYJ3arOh+M32uZq0yu5b1h8oEMGbdpbxd7Z3KHLEAw55hEBb1joWKeLW3rp8Z0g== X-Received: by 2002:a37:a208:: with SMTP id l8mr26130803qke.302.1585074377272; Tue, 24 Mar 2020 11:26:17 -0700 (PDT) Received: from localhost ([2620:10d:c091:480::19c2]) by smtp.gmail.com with ESMTPSA id m65sm13998087qke.109.2020.03.24.11.26.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 24 Mar 2020 11:26:16 -0700 (PDT) Date: Tue, 24 Mar 2020 14:26:15 -0400 From: Tejun Heo To: Marco Ballesio Cc: Daniel Colascione , Roman Gushchin , cgroups@vger.kernel.org, linux-kernel , lizefan@huawei.com, Johannes Weiner , Jonathan Corbet , rjw@rjwysocki.net, Pavel Machek , len.brown@intel.com, "open list:DOCUMENTATION" , linux-pm@vger.kernel.org, Minchan Kim , Suren Baghdasaryan Subject: Re: [PATCH] cgroup-v1: freezer: optionally killable freezer Message-ID: <20200324182615.GF162390@mtj.duckdns.org> References: <20200219183231.50985-1-balejs@google.com> <20200303134855.GA186184@mtj.thefacebook.com> <20200320201038.GB79184@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200320201038.GB79184@google.com> Sender: linux-doc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-doc@vger.kernel.org Hello, On Fri, Mar 20, 2020 at 01:10:38PM -0700, Marco Ballesio wrote: > It might also be desirable for userland to have a way to modify the behavior of > an already mounted v1 freezer. > > Tejun, would it be acceptable to have a flag but disable it by default, hiding > it behind a kernel configuration option? Given how dead-end this is, I'm not sure this needs to be upstream. Can you give me some rationales? Thanks. -- tejun