linux-kernel - Re: [PATCH 1/2] mm/gup: introduce pin_user_pages

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <0674f8b7-a5eb-6d5c-792d-573f85871a72@nvidia.com>
Date:   Sun, 31 May 2020 12:56:23 -0700
From:   John Hubbard <jhubbard@...dia.com>
To:     Souptick Joarder <jrdr.linux@...il.com>
CC:     Andrew Morton <akpm@...ux-foundation.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Linux-MM <linux-mm@...ck.org>
Subject: Re: [PATCH 1/2] mm/gup: introduce pin_user_pages_locked()

On 2020-05-31 00:13, Souptick Joarder wrote:
> On Sun, May 31, 2020 at 12:34 PM Souptick Joarder <jrdr.linux@...il.com> wrote:
>>
>> On Thu, May 28, 2020 at 4:02 AM John Hubbard <jhubbard@...dia.com> wrote:
>>>
>>> Introduce pin_user_pages_locked(), which is nearly identical to
>>> get_user_pages_locked() except that it sets FOLL_PIN and rejects
>>> FOLL_GET.
> 
> Forget to ask, is it fine to add this new pin_user_pages_locked() in
> Documentation/core-api/pin_user_pages.rst ?
> 
I wasn't planning on maintaining a rigorous list of all of the pin_user_page*()
API calls, in pin_user_pages.rst. Each call is documented in gup.c, for  that.
The .rst is there to help explain things at a slighly higher abstraction level.

thanks,
-- 
John Hubbard
NVIDIA