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=-7.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,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 D7821C433C1 for ; Wed, 24 Mar 2021 14:31:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 93809619FB for ; Wed, 24 Mar 2021 14:31:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236239AbhCXObP (ORCPT ); Wed, 24 Mar 2021 10:31:15 -0400 Received: from us-smtp-delivery-124.mimecast.com ([63.128.21.124]:21755 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236211AbhCXObJ (ORCPT ); Wed, 24 Mar 2021 10:31:09 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1616596269; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=+jtHaYpG/XZInPp8hHHKOOdzU2YSMvIuIW7BEJkipo8=; b=KqHRh/Wf0nk6pudXDypiBEZdt2ZySsNSFvB0+AwMW8iM9l8er6jJchvGa+bZCd0Y4XgpGB YOgogUzZbiMSn1adlCNR5db37w7xTrG+n7Dan2O8Y3fIKmyi8mh+o+hy1BEkak80RzOvXO CPKR/pfnFsYMdXU0gbmkwypkjF3r3PU= Received: from mail-wr1-f71.google.com (mail-wr1-f71.google.com [209.85.221.71]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-400-CBmYcaCJOg6AgSONneow7A-1; Wed, 24 Mar 2021 10:31:07 -0400 X-MC-Unique: CBmYcaCJOg6AgSONneow7A-1 Received: by mail-wr1-f71.google.com with SMTP id i5so1165259wrp.8 for ; Wed, 24 Mar 2021 07:31:07 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=+jtHaYpG/XZInPp8hHHKOOdzU2YSMvIuIW7BEJkipo8=; b=GRq5AyIKY+0N87HMW5Ey6CJL5+JKyLzCsBaEA6SVIC3utvfzVMxTN9qZHE/7CPOo+b b9COCb1RjuFgjpl7/H/ob+RYfDW9MjhM3FMmszs9ghh1inArwjSlNBafD1fnTJoI7wXL gCJeGq4UF1vq9dEKv9RWO9d5GbH9xINvG4RjdC+QkV7Knnq6vjBEdHP1GI7ofYpBQfSq DXKkZfx31xy4aW828SerZ2uyfB9SJ5cLxW0bSPm4V4UjDX8jUQDJsOGDe/C5Dx74kDkV PTh4uThpanpBKQB7RqJnF/MniS6OzWayhRhLFl3jMxfDcaK2dkaUqVeyzo5G9aNaLrKY 7yhA== X-Gm-Message-State: AOAM530j42qAhZWvlAvdq7AUyro9emss+AWCzgDDS7/XNxAI0I8yOOre dmvjAIdt2tS7/wBi4yUCw6edWDfiENRvuP6y5RwI2DU8SmgbsevjLjoLtB/BUk7G9JmGZ5h5mBQ I/ypmtkURiNrzyP09mPLC9Ps= X-Received: by 2002:a5d:68cd:: with SMTP id p13mr3977883wrw.247.1616596266461; Wed, 24 Mar 2021 07:31:06 -0700 (PDT) X-Google-Smtp-Source: ABdhPJxIf+VryoTPSfwti+YSTkQ2E1C0/b6Xuw3ivYfNPK4a9PF7c1OO41KjvaTv9A51GLRMrRGgKA== X-Received: by 2002:a5d:68cd:: with SMTP id p13mr3977856wrw.247.1616596266249; Wed, 24 Mar 2021 07:31:06 -0700 (PDT) Received: from ?IPv6:2001:b07:6468:f312:c8dd:75d4:99ab:290a? ([2001:b07:6468:f312:c8dd:75d4:99ab:290a]) by smtp.gmail.com with ESMTPSA id u8sm3366640wrr.42.2021.03.24.07.31.04 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 24 Mar 2021 07:31:05 -0700 (PDT) Subject: Re: [PATCH 3/3] mm: unexport follow_pfn To: Jason Gunthorpe , Daniel Vetter Cc: DRI Development , LKML , kvm@vger.kernel.org, linux-mm@kvack.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-media@vger.kernel.org, 3pvd@google.com, Jann Horn , Cornelia Huck , Peter Xu , Alex Williamson , Daniel Vetter References: <20210316153303.3216674-1-daniel.vetter@ffwll.ch> <20210316153303.3216674-4-daniel.vetter@ffwll.ch> <20210324125211.GA2356281@nvidia.com> From: Paolo Bonzini Message-ID: Date: Wed, 24 Mar 2021 15:31:04 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.7.0 MIME-Version: 1.0 In-Reply-To: <20210324125211.GA2356281@nvidia.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org On 24/03/21 13:52, Jason Gunthorpe wrote: > I think this is the right thing to do. > > Alex is working on fixing VFIO and while kvm is still racy using > follow pte, I think they are working on it too? Yeah, or at least we have a plan. Paolo