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=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_PASS,USER_AGENT_MUTT 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 701A5C282CE for ; Tue, 9 Apr 2019 06:08:55 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 1F85420883 for ; Tue, 9 Apr 2019 06:08:54 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1F85420883 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 7F6DF6B0007; Tue, 9 Apr 2019 02:08:54 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 7A6916B0008; Tue, 9 Apr 2019 02:08:54 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 695C26B000C; Tue, 9 Apr 2019 02:08:54 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from mail-qk1-f198.google.com (mail-qk1-f198.google.com [209.85.222.198]) by kanga.kvack.org (Postfix) with ESMTP id 4CAEB6B0007 for ; Tue, 9 Apr 2019 02:08:54 -0400 (EDT) Received: by mail-qk1-f198.google.com with SMTP id y64so13747690qka.3 for ; Mon, 08 Apr 2019 23:08:54 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-original-authentication-results:x-gm-message-state:date:from:to :cc:subject:message-id:references:mime-version:content-disposition :in-reply-to:user-agent; bh=gI+CJWeJWAeL1EpC4t/1QXmZ455u94XXr+h646lWamQ=; b=jPunfyzHxkXgZ+cD8us8aWSLbRQ2/OJ+B3SaZtdhceEdQ/uL2yiyJK08vokaF51PVo MA/Z66IH73IDk/qAILwzCS71kFfDffVJtsJQgkWE40vD9xCiZ/6f1px5SpY+emKvqDOk izaxaXEATs74vv2P9Qv/8m/e6PxfqA3+7mx8Yd/Lyt8VfdDezkthcX/RLmERLHVYqQSf Nbr+GBpT/0NwAH894wx3JiZFhQ6cwbBtx9W5n9uRBqx4m6oyHOzeOyf11lrDcX/KVF5c lSLF7NmZUikAy1FXarA+QwRvQahlAiVAnDvTdNrIGMhQ7AdFQx6Q4gdhN9NKJTmxbDhV UZ7w== X-Original-Authentication-Results: mx.google.com; spf=pass (google.com: domain of peterx@redhat.com designates 209.132.183.28 as permitted sender) smtp.mailfrom=peterx@redhat.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=redhat.com X-Gm-Message-State: APjAAAUxx+W7OtcefpuymUr79t4j1htOGf83ho3tPI8InHIaTQr5xI+R 0FzxCgTOaCdSGo1o7fvWWm7eEqNpCbbAZgATH9vjncY/DlQcc51HLv3GdE6efBm+Q3WpK9GX5bD Re8imhRa+aS8R73BwmyRha36pY+CHDrsBhiQPxQx4qriXxqk9OCtdU1BZzUWxVk4x+A== X-Received: by 2002:ac8:3328:: with SMTP id t37mr28164110qta.246.1554790134017; Mon, 08 Apr 2019 23:08:54 -0700 (PDT) X-Google-Smtp-Source: APXvYqwUpOqbMPT/XjaWtYz4+88VOtI2PMq5e4qTakhz7RjK+/olFnBjI41TGbvEBCsTwFMDS9jJ X-Received: by 2002:ac8:3328:: with SMTP id t37mr28164071qta.246.1554790133093; Mon, 08 Apr 2019 23:08:53 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1554790133; cv=none; d=google.com; s=arc-20160816; b=meczIzqO3eW0kcPIUgaZ/iSnEJ0CsPF0Mzw1WDMmKt2IUra4YFZT+1INMOA82Nxu5A iAbb50nTb3fqB5jrVD2vKOJTEyJpnQWVmOQB7elwnjJTj6fY+ak3xspYVbr6FMwXUS9i P49tIWvjuoOeZjhGpPEW3qphiFekPcS7vS2aOlkNUuksP2aztTtglvomVMrrZR4VYT6Y D+YL94U9L+Iri3pGF3lTtu2dt/FYOHc+U1ucs6VNiY+1sDGKQs6PXB8Swh+25r0jbeWp fynSXjyjVDJgK+RyZ1EILUe+RmTCZCM9G3bATdEPDldiNEx79+BTEmYQvRX+WIEN49ZH U/XQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=user-agent:in-reply-to:content-disposition:mime-version:references :message-id:subject:cc:to:from:date; bh=gI+CJWeJWAeL1EpC4t/1QXmZ455u94XXr+h646lWamQ=; b=Fu0YIov1O81H7oXCZPKrjWzf2K/wCLImudGl7k2BubnY/ImEhnY/wnJsCu31lxq99S wYwp7MzdN/unF8MNE7EzffwLd7NwAy7Bq+edwRW5HyglzFu3iVwMkTaMdo5urmJ7nSkb B34jsLVK9IWFCqjzXxTh0zT8c/Y5Rxp9OyUJGl9dK/SkHn6t2is4t9DarN6BP/7Us1SZ kj+7oOPpKIhJ2DTALovLJKGReiFn62Ho9fkwU0zbx1OJGj6F1FV7xnmuQCRLi6uNFt51 kFSapo8/OLWULsLCng5gMfCURjST/AJzVT9pG88FUwvKzt3iZVhvp7+w7RZGKbuPpV2H alXw== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of peterx@redhat.com designates 209.132.183.28 as permitted sender) smtp.mailfrom=peterx@redhat.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=redhat.com Received: from mx1.redhat.com (mx1.redhat.com. [209.132.183.28]) by mx.google.com with ESMTPS id h15si94195qvo.209.2019.04.08.23.08.52 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 08 Apr 2019 23:08:53 -0700 (PDT) Received-SPF: pass (google.com: domain of peterx@redhat.com designates 209.132.183.28 as permitted sender) client-ip=209.132.183.28; Authentication-Results: mx.google.com; spf=pass (google.com: domain of peterx@redhat.com designates 209.132.183.28 as permitted sender) smtp.mailfrom=peterx@redhat.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=redhat.com Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 130523086216; Tue, 9 Apr 2019 06:08:51 +0000 (UTC) Received: from xz-x1 (dhcp-14-116.nay.redhat.com [10.66.14.116]) by smtp.corp.redhat.com (Postfix) with ESMTPS id E9A0F63F7C; Tue, 9 Apr 2019 06:08:41 +0000 (UTC) Date: Tue, 9 Apr 2019 14:08:39 +0800 From: Peter Xu To: linux-mm@kvack.org, linux-kernel@vger.kernel.org Cc: David Hildenbrand , Hugh Dickins , Maya Gokhale , Jerome Glisse , Pavel Emelyanov , Johannes Weiner , Martin Cracauer , Shaohua Li , Andrea Arcangeli , Mike Kravetz , Denis Plotnikov , Mike Rapoport , Marty McFadden , Mel Gorman , "Kirill A . Shutemov" , "Dr . David Alan Gilbert" Subject: Re: [PATCH v3 00/28] userfaultfd: write protection support Message-ID: <20190409060839.GE3389@xz-x1> References: <20190320020642.4000-1-peterx@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20190320020642.4000-1-peterx@redhat.com> User-Agent: Mutt/1.10.1 (2018-07-13) X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.42]); Tue, 09 Apr 2019 06:08:52 +0000 (UTC) X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Wed, Mar 20, 2019 at 10:06:14AM +0800, Peter Xu wrote: > This series implements initial write protection support for > userfaultfd. Currently both shmem and hugetlbfs are not supported > yet, but only anonymous memory. This is the 3nd version of it. > > The latest code can also be found at: > > https://github.com/xzpeter/linux/tree/uffd-wp-merged > > Note again that the first 5 patches in the series can be seen as > isolated work on page fault mechanism. I would hope that they can be > considered to be reviewed/picked even earlier than the rest of the > series since it's even useful for existing userfaultfd MISSING case > [8]. Ping - any further comments for v3? Is there any chance to have this series (or the first 5 patches) for 5.2? Thanks, -- Peter Xu