On (01/05/16 18:56), Jungseung Lee wrote:
[..]
> > > >> #ifdef CONFIG_HIGHMEM
> > > >> static inline void free_area_high(unsigned long pfn, unsigned long
> > > >>end) {
> > > >>- for (; pfn < end; pfn++)
> > > >>- free_highmem_page(pfn_to_page(pfn));
> > > >>+ while (pfn < end) {
> > > >>+ struct page *page = pfn_to_page(pfn);
> > > >>+ unsigned long order = min(__ffs(pfn), MAX_ORDER - 1);
> > > >>+ unsigned long nr_pages = 1 << order;
> > > >>+ unsigned long rem = end - pfn;
> > > >>+
> > > >>+ if (nr_pages > rem) {
> > > >>+ order = __fls(rem);
> > > >>+ nr_pages = 1 << order;
> > > >>+ }
> > > >>+
> > > >>+ __free_pages_bootmem(page, order);
> > > >>+ totalram_pages += nr_pages;
> > > >>+ totalhigh_pages += nr_pages;
+ page_zone(page)->managed_pages += nr_pages; ???
> > > >>+ pfn += nr_pages;
> > > >>+ }
> > > >> }
-ss
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