On Mon, Jun 4, 2012 at 10:17 AM, Merlin Moncure <mmoncure@gmail.com> wrote:
> What happens (in the very unlikely, but possible case?) if another
> backend races to the buffer you've pointed at with 'victim'? It looks
> like multiple backends share the clock sweep now, but don't you need
> to need an extra test to ensure it's still a candidate victim buffer?
Actually, I don't think you do: the existing check on refcount is
probably good enough. Hm, why did you get rid of
BufferStrategyControl.lastFreeBuffer?
merlin