linux-hardening - Re: [PATCH] mm, hugetlb: Avoid double clearing for hugetlb pages

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Message-ID: <6c17f146-3d1e-8b9f-835c-1dc33d95aa0c@canonical.com>
Date:   Thu, 5 Nov 2020 16:37:55 -0300
From:   "Guilherme G. Piccoli" <gpiccoli@...onical.com>
To:     linux-mm@...ck.org
Cc:     kernel-hardening@...ts.openwall.com,
        linux-hardening@...r.kernel.org,
        linux-security-module@...r.kernel.org, kernel@...ccoli.net,
        cascardo@...onical.com, Alexander Potapenko <glider@...gle.com>,
        James Morris <jamorris@...ux.microsoft.com>,
        Kees Cook <keescook@...omium.org>,
        Michal Hocko <mhocko@...e.cz>,
        Mike Kravetz <mike.kravetz@...cle.com>, david@...hat.com
Subject: Re: [PATCH] mm, hugetlb: Avoid double clearing for hugetlb pages

Thanks all for the valuable opinions and feedback!
Closing the loop here: so, the proposal wasn't accepted, but an
interesting idea to optimize later hugeTLB allocations was discussed in
the thread - it doesn't help much our case, but it is a performance
optimization.

Cheers,


Guilherme