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=-5.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_1 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 6CE12C433E0 for ; Tue, 7 Jul 2020 11:49:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 52855206DF for ; Tue, 7 Jul 2020 11:49:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728872AbgGGLtK (ORCPT ); Tue, 7 Jul 2020 07:49:10 -0400 Received: from mx2.suse.de ([195.135.220.15]:52852 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727116AbgGGLtJ (ORCPT ); Tue, 7 Jul 2020 07:49:09 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 2F4C5AE35; Tue, 7 Jul 2020 11:49:08 +0000 (UTC) Subject: Re: [PATCH v2 3/3] xen/privcmd: Convert get_user_pages*() to pin_user_pages*() To: Souptick Joarder , boris.ostrovsky@oracle.com, sstabellini@kernel.org Cc: xen-devel@lists.xenproject.org, linux-kernel@vger.kernel.org, John Hubbard , Paul Durrant References: <1594059372-15563-1-git-send-email-jrdr.linux@gmail.com> <1594059372-15563-4-git-send-email-jrdr.linux@gmail.com> From: =?UTF-8?B?SsO8cmdlbiBHcm/Dnw==?= Message-ID: <07e11e4b-5a32-f213-46a0-0c2a8bd44b56@suse.com> Date: Tue, 7 Jul 2020 13:49:07 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.9.0 MIME-Version: 1.0 In-Reply-To: <1594059372-15563-4-git-send-email-jrdr.linux@gmail.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 06.07.20 20:16, Souptick Joarder wrote: > In 2019, we introduced pin_user_pages*() and now we are converting > get_user_pages*() to the new API as appropriate. [1] & [2] could > be referred for more information. This is case 5 as per document [1]. > > [1] Documentation/core-api/pin_user_pages.rst > > [2] "Explicit pinning of user-space pages": > https://lwn.net/Articles/807108/ > > Signed-off-by: Souptick Joarder > Cc: John Hubbard > Cc: Boris Ostrovsky > Cc: Paul Durrant Reviewed-by: Juergen Gross Juergen