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=-1.0 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS autolearn=unavailable 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 9C14EC10F03 for ; Tue, 19 Mar 2019 18:13:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6E8BA20872 for ; Tue, 19 Mar 2019 18:13:02 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=amazonses.com header.i=@amazonses.com header.b="A46Bnkdt" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727691AbfCSSNA (ORCPT ); Tue, 19 Mar 2019 14:13:00 -0400 Received: from a9-46.smtp-out.amazonses.com ([54.240.9.46]:54928 "EHLO a9-46.smtp-out.amazonses.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727139AbfCSSNA (ORCPT ); Tue, 19 Mar 2019 14:13:00 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/simple; s=6gbrjpgwjskckoa6a5zn6fwqkn67xbtw; d=amazonses.com; t=1553019179; h=Date:From:To:cc:Subject:In-Reply-To:Message-ID:References:MIME-Version:Content-Type:Feedback-ID; bh=DxlNuZ7/tO+3WRXUygFzfItTwCwspPcK4riHH/qCBnA=; b=A46Bnkdtdmw1ltMn1xLWyOXdgUOYb46BJPcX5+Lnzpmzl+iw9iK/mKzOHnS8xekb qBAEqY11UPz3FmTGgPlmBnorObUj0CYngAdR9vWBQXlH8VXWmrWwAeWnVOeVTghalEr 9vsI/0OE7Avr1S5KOrpOHx1UWnZ43Cx2VxgtmDxI= Date: Tue, 19 Mar 2019 18:12:59 +0000 From: Christopher Lameter X-X-Sender: cl@nuc-kabylake To: john.hubbard@gmail.com cc: Andrew Morton , linux-mm@kvack.org, Al Viro , Christian Benvenuti , Christoph Hellwig , Dan Williams , Dave Chinner , Dennis Dalessandro , Doug Ledford , Ira Weiny , Jan Kara , Jason Gunthorpe , Jerome Glisse , Matthew Wilcox , Michal Hocko , Mike Rapoport , Mike Marciniszyn , Ralph Campbell , Tom Talpey , LKML , linux-fsdevel@vger.kernel.org, John Hubbard Subject: Re: [PATCH v4 0/1] mm: introduce put_user_page*(), placeholder versions In-Reply-To: <20190308213633.28978-1-jhubbard@nvidia.com> Message-ID: <01000169972802f7-2d72ffed-b3a6-4829-8d50-cd92cda6d267-000000@email.amazonses.com> References: <20190308213633.28978-1-jhubbard@nvidia.com> User-Agent: Alpine 2.21 (DEB 202 2017-01-01) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII X-SES-Outgoing: 2019.03.19-54.240.9.46 Feedback-ID: 1.us-east-1.fQZZZ0Xtj2+TD7V5apTT/NrT6QKuPgzCT/IC7XYgDKI=:AmazonSES Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 8 Mar 2019, john.hubbard@gmail.com wrote: > We seem to have pretty solid consensus on the concept and details of the > put_user_pages() approach. Or at least, if we don't, someone please speak > up now. Christopher Lameter, especially, since you had some concerns > recently. My concerns do not affect this patchset which just marks the get/put for the pagecache. The problem was that the description was making claims that were a bit misleading and seemed to prescribe a solution. So lets get this merged. Whatever the solution will be, we will need this markup.