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 D6AE3C433DB for ; Mon, 15 Mar 2021 23:55:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A7E2964F66 for ; Mon, 15 Mar 2021 23:55:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232943AbhCOXyq (ORCPT ); Mon, 15 Mar 2021 19:54:46 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60922 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232736AbhCOXyj (ORCPT ); Mon, 15 Mar 2021 19:54:39 -0400 Received: from mail-qk1-x733.google.com (mail-qk1-x733.google.com [IPv6:2607:f8b0:4864:20::733]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0E526C06174A; Mon, 15 Mar 2021 16:54:39 -0700 (PDT) Received: by mail-qk1-x733.google.com with SMTP id l4so33579197qkl.0; Mon, 15 Mar 2021 16:54:39 -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=US0hVPQ8vE/ff4q4EMV/WahbUbFBxAIlNGyDC8TZKKo=; b=anlpAKgv1icjbUA4PcLTmi9IUjIbI/zzazbcKLMIKSnLma+f+zvtMa/z+TNJ1Fb4/U w4LKNq8Sxa+Jd4ADL3B6JaCsM2rY4qXj3HeZD4506hVAgMner9pcoO2Vd9OZCjXqeQ2Q C/KJ3q0LAJ2t2P4R0lPsrUK1AC8Cgrxvl02ibVFSP88VrAhtb7nDKS5uiJI/tNu+Uv/M HvEa87XZIybFq27EArSte01J4H7GrL53gn48U5jGfSOP/O0z/vgpwwPp2ftthhXWAsVY //QJ71p/BWJs/LrqaW7yb0VkIlGKZxprXpB0uMM1gym5oJ/Pjk4XP/jxxyLzDqwn2AFp k4vg== 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=US0hVPQ8vE/ff4q4EMV/WahbUbFBxAIlNGyDC8TZKKo=; b=KEGWOT8MVzbPBjCMDkpk8xVkk+J5TARSWq11CGzFI1rA5KWn13A/ZNNKke1pCLGutH bKD1UoKogYl3cA4WbBiooJQ5MntH74omUIhKKJgIxvrEGFoNmLoJ6tprs9s4egS1Y6XV 7kqTJCTL4b3CJZb9Aq/BXbfYUWaB138R9CrVhVYX+7XGgh0gmfhYy2viTffPuaSjRo6a s2gCy7sYUo7W0m+zayo6ipxwH8j40yQ9i4EKX9aQc8l6M7QyUMRjK7qvUS3ygXVTDaYM Z9fumSBBnH4X58ek0b1ezXg69/CdoNgx5NDWybWF0R8EhFD9ZZoLOrEdFORPaeESq+bC IKpw== X-Gm-Message-State: AOAM530U6jQg+tIETAhYN2/IuUmqty0q9sCXmJWICpIhHsCveo6u2+yw dyXICQSwH8jsZqva9QyHlDk= X-Google-Smtp-Source: ABdhPJwa2U9JAW0IdxHOI/3q/+uL14oiW0exgSHcfpOxWOPVytqe+AmVKLw8B8hEQOQOpxUo2j2moA== X-Received: by 2002:a37:9b82:: with SMTP id d124mr27326575qke.489.1615852478161; Mon, 15 Mar 2021 16:54:38 -0700 (PDT) Received: from localhost (2603-7000-9602-8233-06d4-c4ff-fe48-9d05.res6.spectrum.com. [2603:7000:9602:8233:6d4:c4ff:fe48:9d05]) by smtp.gmail.com with ESMTPSA id g186sm14138805qke.0.2021.03.15.16.54.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 15 Mar 2021 16:54:37 -0700 (PDT) Sender: Tejun Heo Date: Mon, 15 Mar 2021 19:54:36 -0400 From: Tejun Heo To: Jacob Pan Cc: Vipin Sharma , mkoutny@suse.com, rdunlap@infradead.org, thomas.lendacky@amd.com, brijesh.singh@amd.com, jon.grimm@amd.com, eric.vantassell@amd.com, pbonzini@redhat.com, hannes@cmpxchg.org, frankja@linux.ibm.com, borntraeger@de.ibm.com, corbet@lwn.net, seanjc@google.com, vkuznets@redhat.com, wanpengli@tencent.com, jmattson@google.com, joro@8bytes.org, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, hpa@zytor.com, gingell@google.com, rientjes@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, "Tian, Kevin" , "Liu, Yi L" , "Raj, Ashok" , Alex Williamson , Jason Gunthorpe , Jacob Pan , "jean-philippe@linaro.org" Subject: Re: [RFC v2 2/2] cgroup: sev: Miscellaneous cgroup documentation. Message-ID: References: <20210312125821.22d9bfca@jacob-builder> <20210312145904.4071a9d6@jacob-builder> <20210313085701.1fd16a39@jacob-builder> <20210315151155.383a7e6e@jacob-builder> <20210315164012.4adeabe8@jacob-builder> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210315164012.4adeabe8@jacob-builder> Precedence: bulk List-ID: X-Mailing-List: linux-doc@vger.kernel.org Hello, On Mon, Mar 15, 2021 at 04:40:12PM -0700, Jacob Pan wrote: > 2. then we want to move/migrate Process1 to cg_B. so we need uncharge 10 of > cg_A, charge 10 of cg_B So, what I don't get is why this migration is necessary. This isn't supported as a usage pattern and no one, at least in terms of wide-spread usage, does this. Why is this a requirement for your use case? Thanks. -- tejun