Re: [PATCH 08/40] mm: kmem_cache_objsize

[Pekka J Enberg]

On Fri, 4 May 2007, Christoph Lameter wrote:
> He is not able to calculate it just using the object size since he does 
> not know where the slab put the slab management structure. And in case of 
> SLUB there is no slab management structure... Which means he would have to 
> special case based on the slab allocator selected.

Let me state this once more: he is interested in _rough approximation_. It 
makes no sense to me to add this kind of fuzzy logic in the slab. Now, as 
the slab clearly cannot give a _precise number_ either, it shouldn't be 
added there.

But, if both of you really want to stick it in mm/slab.c, I guess I won't 
be too violently opposed to it. It just doesn't make any sense to me.

			Pekka
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