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Date: Thu, 10 Jul 2014 12:44:58 +0400
From: Andrey Ryabinin <a.ryabinin@samsung.com>
MIME-version: 1.0
Subject: Re: [RFC/PATCH RESEND -next 13/21] mm: slub: add allocation size field
 to struct kmem_cache
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To: Christoph Lameter <cl@gentwo.org>
Cc: linux-kernel@vger.kernel.org, Dmitry Vyukov <dvyukov@google.com>, Konstantin Serebryany <kcc@google.com>, Alexey Preobrazhensky <preobr@google.com>, Andrey Konovalov <adech.fo@gmail.com>, Yuri Gribov <tetra2005@gmail.com>, Konstantin Khlebnikov <koct9i@gmail.com>, Sasha Levin <sasha.levin@oracle.com>, Michal Marek <mmarek@suse.cz>, Russell King <linux@arm.linux.org.uk>, Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@redhat.com>, Pekka Enberg <penberg@kernel.org>, David Rientjes <rientjes@google.com>, Joonsoo Kim <iamjoonsoo.kim@lge.com>, Andrew Morton <akpm@linux-foundation.org>, linux-kbuild@vger.kernel.org, linux-arm-kernel@lists.infradead.org, x86@kernel.org, linux-mm@kvack.org

On 07/09/14 18:33, Christoph Lameter wrote:
> On Wed, 9 Jul 2014, Andrey Ryabinin wrote:
> 
>> When caller creates new kmem_cache, requested size of kmem_cache
>> will be stored in alloc_size. Later alloc_size will be used by
>> kerenel address sanitizer to mark alloc_size of slab object as
>> accessible and the rest of its size as redzone.
> 
> I think this patch is not needed since object_size == alloc_size right?
> 

I vaguely remember there was a reason for this patch, but I can't see/recall it now.
Probably I misunderstood something. I'll drop this patch

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