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Date:   Wed, 29 Nov 2017 14:12:45 -0800
From:   Kees Cook <>
To:     Michal Hocko <>
Cc:     Linux API <>,
        Khalid Aziz <>,
        Michael Ellerman <>,
        Andrew Morton <>,
        Russell King - ARM Linux <>,
        Andrea Arcangeli <>,
        Linux-MM <>,
        LKML <>,
        linux-arch <>,
        Florian Weimer <>,
        John Hubbard <>,
        Abdul Haleem <>,
        Joel Stanley <>, Michal Hocko <>
Subject: Re: [PATCH 0/2] mm: introduce MAP_FIXED_SAFE

On Wed, Nov 29, 2017 at 6:42 AM, Michal Hocko <> wrote:
> Except we won't export expose the new semantic to the userspace at all.

I'm confused: the changes in patch 1 are explicitly adding
MAP_FIXED_SAFE to the uapi. If it's not supposed to be exposed,
shouldn't it go somewhere else?


Kees Cook
Pixel Security

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