On Fri, Jul 15, 2016 at 11:45:34PM +0900, Minchan Kim wrote:
> > +static __always_inline void update_lru_sizes(struct lruvec *lruvec,
> > + enum lru_list lru, unsigned long *nr_zone_taken,
> > + unsigned long nr_taken)
> > +{
> > +#ifdef CONFIG_HIGHMEM
>
> If you think it's really worth to optimize it for non-highmem system,
> we don't need to account nr_zone_taken in *isolate_lru_pages*
> from the beginning for non-highmem system, either.
>
It becomes a mess of ifdefs and given the marginal overhead, I left it
for now.
--
Mel Gorman
SUSE Labs
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