linux-kernel - Re: [PATCH 3/5] kasan, mm: integrate page_alloc init with HW

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Message-ID: <CANpmjNM+CoExcw=19VOtXT5KMnSboTUCska1tmR_WZVMeE49sQ@mail.gmail.com>
Date:   Mon, 8 Mar 2021 12:50:49 +0100
From:   Marco Elver <elver@...gle.com>
To:     Andrey Konovalov <andreyknvl@...gle.com>
Cc:     Alexander Potapenko <glider@...gle.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        Vincenzo Frascino <vincenzo.frascino@....com>,
        Dmitry Vyukov <dvyukov@...gle.com>,
        Andrey Ryabinin <aryabinin@...tuozzo.com>,
        Peter Collingbourne <pcc@...gle.com>,
        Evgenii Stepanov <eugenis@...gle.com>,
        Branislav Rankov <Branislav.Rankov@....com>,
        Kevin Brodsky <kevin.brodsky@....com>,
        kasan-dev <kasan-dev@...glegroups.com>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        Linux Memory Management List <linux-mm@...ck.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 3/5] kasan, mm: integrate page_alloc init with HW_TAGS

On Mon, 8 Mar 2021 at 12:35, Marco Elver <elver@...gle.com> wrote:
[...]
> Could we instead add a static inline helper to <linux/kasan.h>, e.g.
> kasan_supports_init() or so?

Hmm, KASAN certainly "supports" memory initialization always. So maybe
"kasan_has_accelerated_init()" is more accurate?  I leave it to you to
decide what the best option is.

Thanks,
-- Marco