Re: [PATCH 05/20] mm: Simplify anon_vma refcounts

[Pekka Enberg]

On Sat, Aug 28, 2010 at 5:16 PM, Peter Zijlstra <a.p.zijlstra@xxxxxxxxx> wrote:
> This patch changes the anon_vma refcount to be 0 when the object is
> free. It does this by adding 1 ref to being in use in the anon_vma
> structure (iow. the anon_vma->head list is not empty).
>
> This allows a simpler release scheme without having to check both the
> refcount and the list as well as avoids taking a ref for each entry
> on the list.
>
> Signed-off-by: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>

FWIW,

Acked-by: Pekka Enberg <penberg@xxxxxxxxxx>
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