linux-kernel - Re: [PATCH 09/19] drm/via: set FOLL_PIN via pin_user_pages

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Message-ID: <48d22c77-c313-59ff-4847-bc9a9813b8a7@nvidia.com>
Date:   Mon, 4 Nov 2019 11:20:38 -0800
From:   John Hubbard <jhubbard@...dia.com>
To:     Ira Weiny <ira.weiny@...el.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Al Viro <viro@...iv.linux.org.uk>,
        Alex Williamson <alex.williamson@...hat.com>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Björn Töpel <bjorn.topel@...el.com>,
        Christoph Hellwig <hch@...radead.org>,
        Dan Williams <dan.j.williams@...el.com>,
        Dave Chinner <david@...morbit.com>,
        David Airlie <airlied@...ux.ie>,
        "David S . Miller" <davem@...emloft.net>, Jan Kara <jack@...e.cz>,
        Jason Gunthorpe <jgg@...pe.ca>, Jens Axboe <axboe@...nel.dk>,
        Jonathan Corbet <corbet@....net>,
        Jérôme Glisse <jglisse@...hat.com>,
        Magnus Karlsson <magnus.karlsson@...el.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        Michal Hocko <mhocko@...e.com>,
        Mike Kravetz <mike.kravetz@...cle.com>,
        Paul Mackerras <paulus@...ba.org>,
        Shuah Khan <shuah@...nel.org>,
        Vlastimil Babka <vbabka@...e.cz>, <bpf@...r.kernel.org>,
        <dri-devel@...ts.freedesktop.org>, <kvm@...r.kernel.org>,
        <linux-block@...r.kernel.org>, <linux-doc@...r.kernel.org>,
        <linux-fsdevel@...r.kernel.org>, <linux-kselftest@...r.kernel.org>,
        <linux-media@...r.kernel.org>, <linux-rdma@...r.kernel.org>,
        <linuxppc-dev@...ts.ozlabs.org>, <netdev@...r.kernel.org>,
        <linux-mm@...ck.org>, LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 09/19] drm/via: set FOLL_PIN via pin_user_pages_fast()

On 11/4/19 10:10 AM, Daniel Vetter wrote:
> On Thu, Oct 31, 2019 at 04:36:28PM -0700, Ira Weiny wrote:
>> On Wed, Oct 30, 2019 at 03:49:20PM -0700, John Hubbard wrote:
>>> Convert drm/via to use the new pin_user_pages_fast() 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: Ira Weiny <ira.weiny@...el.com>
> 
> No one's touching the via driver anymore, so feel free to merge this
> through whatever tree suits best (aka I'll drop this on the floor and
> forget about it now).
> 
> Acked-by: Daniel Vetter <daniel.vetter@...ll.ch>
> 

OK, great. Yes, in fact, I'm hoping Andrew can just push the whole series
in through the mm tree, because that would allow it to be done in one 
shot, in 5.5


thanks,

John Hubbard
NVIDIA