linux-kernel - Re: [PATCH v2 2/2] kasan: clean up KASAN_SHADOW_SCALE

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Message-ID: <b3d59ebe-9bdd-46a2-377d-8f242ccef426@virtuozzo.com>
Date:   Mon, 15 Jan 2018 19:35:11 +0300
From:   Andrey Ryabinin <aryabinin@...tuozzo.com>
To:     Andrey Konovalov <andreyknvl@...gle.com>,
        Alexander Potapenko <glider@...gle.com>,
        Dmitry Vyukov <dvyukov@...gle.com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        "H . Peter Anvin" <hpa@...or.com>, kasan-dev@...glegroups.com,
        linux-mm@...ck.org, linux-arm-kernel@...ts.infradead.org,
        x86@...nel.org, linux-kernel@...r.kernel.org
Cc:     Kostya Serebryany <kcc@...gle.com>,
        Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH v2 2/2] kasan: clean up KASAN_SHADOW_SCALE_SHIFT usage



On 01/12/2018 07:49 PM, Andrey Konovalov wrote:
> Right now the fact that KASAN uses a single shadow byte for 8 bytes of
> memory is scattered all over the code.
> 
> This change defines KASAN_SHADOW_SCALE_SHIFT early in asm include files
> and makes use of this constant where necessary.
> 
> Signed-off-by: Andrey Konovalov <andreyknvl@...gle.com>
> ---

Acked-by: Andrey Ryabinin <aryabinin@...tuozzo.com>