On Mon, Nov 16, 2015 at 01:45:01PM +0100, Michal Hocko wrote:
> On Mon 16-11-15 14:51:26, Yaowei Bai wrote:
> [...]
> > @@ -72,16 +72,10 @@ struct zoneref *next_zones_zonelist(struct zoneref *z,
> > }
> >
> > #ifdef CONFIG_ARCH_HAS_HOLES_MEMORYMODEL
> > -int memmap_valid_within(unsigned long pfn,
> > +bool memmap_valid_within(unsigned long pfn,
> > struct page *page, struct zone *zone)
> > {
> > - if (page_to_pfn(page) != pfn)
> > - return 0;
> > -
> > - if (page_zone(page) != zone)
> > - return 0;
> > -
> > - return 1;
> > + return page_to_pfn(page) == pfn && page_zone(page) == zone;
>
> I do not think this is easier to read. Quite contrary
OK, so we can just make it return ture/false without refactoring it.
>
> > }
> > #endif /* CONFIG_ARCH_HAS_HOLES_MEMORYMODEL */
> >
> > --
> > 1.9.1
> >
> >
>
> --
> Michal Hocko
> SUSE Labs
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