Re: [PATCH 05/15] kmemleak: Add the slub memory allocation/freeinghooks

[Pekka Enberg]

Catalin Marinas wrote:
> This patch adds the callbacks to memleak_(alloc|free) functions from the
> slub allocator.
>
> Signed-off-by: Catalin Marinas <catalin.marinas@xxxxxxx>
> Cc: Christoph Lameter <cl@xxxxxxxxxxxxxxxxxxxx>
> Cc: Pekka Enberg <penberg@xxxxxxxxxxxxxx>

Hmm, I'm not sure I understand why struct kmem_cache_cpu ->freelist is 
never scanned. For SMP, I suppose kmemleak doesn't scan the per-CPU 
areas? But for UP, struct kmem_cache is allocated with kmalloc() and 
that contains struct kmem_cache_cpu as well.

And I suppose we never scan struct pages either. Otherwise ->freelist 
there would be a problem as well.

		Pekka
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