linux-kernel - Re: [PATCH v4 0/1] mm: introduce put_user

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Message-ID: <01000169972802f7-2d72ffed-b3a6-4829-8d50-cd92cda6d267-000000@email.amazonses.com>
Date:   Tue, 19 Mar 2019 18:12:59 +0000
From:   Christopher Lameter <cl@...ux.com>
To:     john.hubbard@...il.com
cc:     Andrew Morton <akpm@...ux-foundation.org>, linux-mm@...ck.org,
        Al Viro <viro@...iv.linux.org.uk>,
        Christian Benvenuti <benve@...co.com>,
        Christoph Hellwig <hch@...radead.org>,
        Dan Williams <dan.j.williams@...el.com>,
        Dave Chinner <david@...morbit.com>,
        Dennis Dalessandro <dennis.dalessandro@...el.com>,
        Doug Ledford <dledford@...hat.com>,
        Ira Weiny <ira.weiny@...el.com>, Jan Kara <jack@...e.cz>,
        Jason Gunthorpe <jgg@...pe.ca>,
        Jerome Glisse <jglisse@...hat.com>,
        Matthew Wilcox <willy@...radead.org>,
        Michal Hocko <mhocko@...nel.org>,
        Mike Rapoport <rppt@...ux.ibm.com>,
        Mike Marciniszyn <mike.marciniszyn@...el.com>,
        Ralph Campbell <rcampbell@...dia.com>,
        Tom Talpey <tom@...pey.com>,
        LKML <linux-kernel@...r.kernel.org>,
        linux-fsdevel@...r.kernel.org, John Hubbard <jhubbard@...dia.com>
Subject: Re: [PATCH v4 0/1] mm: introduce put_user_page*(), placeholder
 versions

On Fri, 8 Mar 2019, john.hubbard@...il.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.