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=-2.2 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,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 876BACA9ECF for ; Fri, 1 Nov 2019 14:49:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5F376218AC for ; Fri, 1 Nov 2019 14:49:49 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=kernel-dk.20150623.gappssmtp.com header.i=@kernel-dk.20150623.gappssmtp.com header.b="I8fTjuu/" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727483AbfKAOts (ORCPT ); Fri, 1 Nov 2019 10:49:48 -0400 Received: from mail-il1-f196.google.com ([209.85.166.196]:40221 "EHLO mail-il1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727553AbfKAOtq (ORCPT ); Fri, 1 Nov 2019 10:49:46 -0400 Received: by mail-il1-f196.google.com with SMTP id d83so8903480ilk.7 for ; Fri, 01 Nov 2019 07:49:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20150623.gappssmtp.com; s=20150623; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=OvG/qWeSbh1TxLgtmArlVNDYsoALFmkQsSm7UaGBE/U=; b=I8fTjuu/6Ne32KB3TzlkLHNc34FVVQHy/sTVoKvVYeIrGIs/zEWpPkdT4X2FTYZjfJ UM4GFAou96icNjK1AVI5vEOtitRVjbXgZfqaanuntVF/vhTirkZT/9E+CWJUq7E2TQj0 StXEuMWcR5zlKYK8R7EGKhYIJ+Gb4ciY1IEMBuLWPRJg6NDyeWhuiAg3JUaKBbPDkQbL sElozNdk4t7DFMJr/2GTc4DXhCqAVsopLQpS5jb3DWebvxakkqFHF/FpNq1kpaMflaeM i/d5Nr3Kf7lOCXzSXk2CZXk0I+pfGJSDm0die6SS7xUqTydNbrFVI18tKwuFsQOAi/MB kf9g== 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=OvG/qWeSbh1TxLgtmArlVNDYsoALFmkQsSm7UaGBE/U=; b=nEkgLRI/3iyH//N1fbHyK51YkH4BtvcNJgIM/jdJ462VSaN5aCKP395Rl99assx0SS xf36KigM3UIMq1rWQLu5NzeVM6k+jGQSJp7gVZMygqCfTc1bft+NafWmdxMsOFNezfnC satzmh126mmi6CTkDrFiOjZlXTcEW9Bnx/vjspYj2bZ8lmbJVSYpqSo1lnqtet6zCGFf mVbX67aWKGv0v2nbwbmIKfan28XXhZ5S0qaR6p1ekym+3swT8LTmygs45tkmFd09VpUf hdx59UOiuMMHC39J//2H8cQ7i499m/KvhQb8yrvWblgSzY3HVCTTyqdYh+XePHtbT3hf R9+w== X-Gm-Message-State: APjAAAWU1sGYjlHzuo5HuJ/yaNwgMJHsTExNPTHLdq+lP5YJfs+uoM+A N2VhJZ64bDaj174nep+/PjhExA== X-Google-Smtp-Source: APXvYqxr+bs1ScRWYKeCxmeXCSlj6Q4Lr6KXKYyS2zYjKblHkVBUMc7IPKJ+YzvkERiHaP9xr0/5Lg== X-Received: by 2002:a92:5d8f:: with SMTP id e15mr13331860ilg.173.1572619783709; Fri, 01 Nov 2019 07:49:43 -0700 (PDT) Received: from [192.168.1.159] ([65.144.74.34]) by smtp.gmail.com with ESMTPSA id f73sm1107827ild.59.2019.11.01.07.49.40 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 01 Nov 2019 07:49:42 -0700 (PDT) Subject: Re: [PATCH 10/19] fs/io_uring: set FOLL_PIN via pin_user_pages() To: John Hubbard , Andrew Morton Cc: Al Viro , Alex Williamson , Benjamin Herrenschmidt , =?UTF-8?B?QmrDtnJuIFTDtnBlbA==?= , Christoph Hellwig , Dan Williams , Daniel Vetter , Dave Chinner , David Airlie , "David S . Miller" , Ira Weiny , Jan Kara , Jason Gunthorpe , Jonathan Corbet , =?UTF-8?B?SsOpcsO0bWUgR2xpc3Nl?= , Magnus Karlsson , Mauro Carvalho Chehab , Michael Ellerman , Michal Hocko , Mike Kravetz , Paul Mackerras , Shuah Khan , Vlastimil Babka , bpf@vger.kernel.org, dri-devel@lists.freedesktop.org, kvm@vger.kernel.org, linux-block@vger.kernel.org, linux-doc@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-media@vger.kernel.org, linux-rdma@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, netdev@vger.kernel.org, linux-mm@kvack.org, LKML References: <20191030224930.3990755-1-jhubbard@nvidia.com> <20191030224930.3990755-11-jhubbard@nvidia.com> From: Jens Axboe Message-ID: <979ba2a3-ee04-fb12-204d-1b68c7b6e141@kernel.dk> Date: Fri, 1 Nov 2019 08:49:39 -0600 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.9.0 MIME-Version: 1.0 In-Reply-To: <20191030224930.3990755-11-jhubbard@nvidia.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kselftest-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org On 10/30/19 4:49 PM, John Hubbard wrote: > Convert fs/io_uring to use the new pin_user_pages() call, which sets > FOLL_PIN. Setting FOLL_PIN is now required for code that requires > tracking of pinned pages, and therefore for any code that calls > put_user_page(). Reviewed-by: Jens Axboe -- Jens Axboe