Use helper function free_highmem_page() to free highmem pages into
the buddy system.
Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Cc: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 
 #ifdef CONFIG_HIGHMEM
        unsigned long tmp;
-       for (tmp = highstart_pfn; tmp < highend_pfn; tmp++) {
-               struct page *page = pfn_to_page(tmp);
-               ClearPageReserved(page);
-               init_page_count(page);
-               __free_page(page);
-               totalhigh_pages++;
-       }
-       totalram_pages += totalhigh_pages;
+       for (tmp = highstart_pfn; tmp < highend_pfn; tmp++)
+               free_highmem_page(pfn_to_page(tmp));
        num_physpages += totalhigh_pages;
 #endif /* CONFIG_HIGHMEM */