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=-4.0 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,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 6C822C2BBCA for ; Wed, 16 Dec 2020 15:28:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 35B21233EA for ; Wed, 16 Dec 2020 15:28:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726354AbgLPP2b (ORCPT ); Wed, 16 Dec 2020 10:28:31 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49278 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726098AbgLPP2a (ORCPT ); Wed, 16 Dec 2020 10:28:30 -0500 Received: from mail-qt1-x82a.google.com (mail-qt1-x82a.google.com [IPv6:2607:f8b0:4864:20::82a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 55EC2C06179C; Wed, 16 Dec 2020 07:27:50 -0800 (PST) Received: by mail-qt1-x82a.google.com with SMTP id b9so17435029qtr.2; Wed, 16 Dec 2020 07:27:50 -0800 (PST) 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=prX3rWtyfPweOuw4gkFpK72BDK4qvRlCVupw3Ndw2Ac=; b=rezOy+6QPMcMTmHZilEXd5MahyR0XoYOFbeKSduB26x0hjzRboxW8uHxlpwAPUptzE zByvM8BVF7DqzhPTm1pLiRwkFncJRgXgk14fZ3Td5hXZ3ppHAYRVr4K2fmISA/yC3Tg0 u9fOdp8eaoAayhcY31tEC3A76cRVIkZghlj1ifANhhBGZHwsbykoABxX4WbT8YwSrL4N 0RMXDdI4XzOF/bcjpfJfe/QUTNbZNe1itunCwu7tIeOmzGjdiHCozLO5a2A3J41IRn5s DyyOmQz+GHzQRLN8jYIK0m3LPrDULTB5zJq6uaYm2JB/h+d76aj+Ew/g7hHFE1x/uYkT szFQ== 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=prX3rWtyfPweOuw4gkFpK72BDK4qvRlCVupw3Ndw2Ac=; b=aCWEeXVpk1n8cNvU/mwDh5xuX4bY0u7BUoue3/sqd8gOTm2wuyxP7NCEbLiphBZGhH LPqj0/S/yM9+EcBA2rBD13XhmPKyOBm38D+QKzg9j4yAJVGmuhzZiLxXDd24r+59UArc VwXJhuTcxuNmqu2JmPfBi7zSdI4Ktz8ezYHMTGf3Usz6YmasMqwGnU3HT30uawP33one v5ieRWQzGzMM3lID5+xvu5Jt2BBCRQ9ZrJpvNwVfwQK7fWKb3LukNcnIRoSxMzhtoToM 5Ki0Y0MvDKfAfs7uypgmE2r7JLEWlECKd/pkhgCF80fnYirH86zCVS9TRkhoTwnau9ne HFOA== X-Gm-Message-State: AOAM531QJcLqXVvFfqvlmVQ9tSb3Vw/4wL5fMMzxd8Lps2qajUAxFWQn rsn52d91yQNlKjdykQh7lbY= X-Google-Smtp-Source: ABdhPJx7xYoKRj1ObnlCPOdJs3LfrmdGBNyMnAOZNNo2pNXrhYjus3PJOgxipTiPrGzDD2WVLDcsXQ== X-Received: by 2002:ac8:3656:: with SMTP id n22mr43721803qtb.242.1608132469499; Wed, 16 Dec 2020 07:27:49 -0800 (PST) Received: from localhost ([2620:10d:c091:480::1:cbde]) by smtp.gmail.com with ESMTPSA id c65sm1324569qkf.47.2020.12.16.07.27.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 16 Dec 2020 07:27:48 -0800 (PST) Sender: Tejun Heo Date: Wed, 16 Dec 2020 10:27:15 -0500 From: Tejun Heo To: David Rientjes Cc: Christian Borntraeger , Vipin Sharma , thomas.lendacky@amd.com, brijesh.singh@amd.com, jon.grimm@amd.com, eric.vantassell@amd.com, pbonzini@redhat.com, seanjc@google.com, lizefan@huawei.com, hannes@cmpxchg.org, frankja@linux.ibm.com, corbet@lwn.net, joro@8bytes.org, vkuznets@redhat.com, wanpengli@tencent.com, jmattson@google.com, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, hpa@zytor.com, gingell@google.com, dionnaglaze@google.com, kvm@vger.kernel.org, x86@kernel.org, cgroups@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [Patch v3 0/2] cgroup: KVM: New Encryption IDs cgroup controller Message-ID: References: <20201209205413.3391139-1-vipinsh@google.com> <4f7b9c3f-200e-6127-1d94-91dd9c917921@de.ibm.com> <5f8d4cba-d3f-61c2-f97-fdb338fec9b8@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5f8d4cba-d3f-61c2-f97-fdb338fec9b8@google.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, On Thu, Dec 10, 2020 at 03:44:35PM -0800, David Rientjes wrote: > Concern with a single misc controller would be that any subsystem that > wants to use it has to exactly fit this support: current, max, stat, > nothing more. The moment a controller needs some additional support, and > its controller is already implemented in previous kernel versionv as a > part of "misc," we face a problem. Yeah, that's a valid concern, but given the history, there doesn't seem to be much need beyond that for these use cases and the limited need seems inherent to the way the resources are defined and consumed. So yeah, it can either way. Thanks. -- tejun