linux-kernel - Re: [PATCH 16/34] drivers/tee: convert put_page() to put_user

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Message-ID: <23cc9ac3-4b03-9187-aae6-d64ba8cfca00@nvidia.com>
Date:   Fri, 2 Aug 2019 11:51:14 -0700
From:   John Hubbard <jhubbard@...dia.com>
To:     Jens Wiklander <jens.wiklander@...aro.org>,
        <john.hubbard@...il.com>
CC:     Andrew Morton <akpm@...ux-foundation.org>,
        Christoph Hellwig <hch@...radead.org>,
        Dan Williams <dan.j.williams@...el.com>,
        Dave Chinner <david@...morbit.com>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Ira Weiny <ira.weiny@...el.com>, Jan Kara <jack@...e.cz>,
        Jason Gunthorpe <jgg@...pe.ca>,
        Jérôme Glisse <jglisse@...hat.com>,
        LKML <linux-kernel@...r.kernel.org>,
        <amd-gfx@...ts.freedesktop.org>, <ceph-devel@...r.kernel.org>,
        <devel@...verdev.osuosl.org>, <devel@...ts.orangefs.org>,
        <dri-devel@...ts.freedesktop.org>,
        <intel-gfx@...ts.freedesktop.org>, <kvm@...r.kernel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
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        "open list:HARDWARE RANDOM NUMBER GENERATOR CORE" 
        <linux-crypto@...r.kernel.org>, <linux-fbdev@...r.kernel.org>,
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        <linux-rdma@...r.kernel.org>,
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        <rds-devel@....oracle.com>, <sparclinux@...r.kernel.org>,
        <x86@...nel.org>, <xen-devel@...ts.xenproject.org>
Subject: Re: [PATCH 16/34] drivers/tee: convert put_page() to put_user_page*()

On 8/1/19 11:29 PM, Jens Wiklander wrote:
> On Fri, Aug 2, 2019 at 4:20 AM <john.hubbard@...il.com> wrote:
>>
>> From: John Hubbard <jhubbard@...dia.com>
>>
>> For pages that were retained via get_user_pages*(), release those pages
>> via the new put_user_page*() routines, instead of via put_page() or
>> release_pages().
>>
>> This is part a tree-wide conversion, as described in commit fc1d8e7cca2d
>> ("mm: introduce put_user_page*(), placeholder versions").
>>
>> Cc: Jens Wiklander <jens.wiklander@...aro.org>
>> Signed-off-by: John Hubbard <jhubbard@...dia.com>
>> ---
>>   drivers/tee/tee_shm.c | 10 ++--------
>>   1 file changed, 2 insertions(+), 8 deletions(-)
> 
> Acked-by: Jens Wiklander <jens.wiklander@...aro.org>
> 
> I suppose you're taking this via your own tree or such.
> 

Hi Jens,

Thanks for the ACK! I'm expecting that Andrew will take this through his
-mm tree, unless he pops up and says otherwise.

thanks,
-- 
John Hubbard
NVIDIA