On Tue, Apr 06, 2010 at 01:03:25PM +0800, Wu, Fengguang wrote:
> Shaohua,
>
> > + scan = zone_nr_lru_pages(zone, sc, l);
> > + if (priority) {
> > + scan >>= priority;
> > + scan = (scan * fraction[file] / denominator[file]);
>
> Ah, the (scan * fraction[file]) may overflow in 32bit kernel!
good catch. will change it to u64.
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