Re: [PATCH 20/25] mm: Simplify anon_vma refcounts

[Linus Torvalds]

On Wed, Jan 26, 2011 at 3:31 AM, 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).

Why is this patch part of this series, rather than being an
independent patch before the whole series?

I think this part of the series is the only total no-brainer, ie we
should have done this from the beginning. The preemptability stuff I'm
more nervous about (performance issues? semantic differences?)

             Linus
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/