Re: [RFC/PATCH RESEND -next 13/21] mm: slub: add allocation size field to struct kmem_cache

From: Andrey Ryabinin
Date: Thu Jul 10 2014 - 04:50:41 EST


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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