hugetlb: fix update_and_free_page contig page struct assumption

[linux-2.6-microblaze.git] / mm / hugetlb.c

diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 6786b31..3f6a503 100644 (file)
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -1321,14 +1321,16 @@ static inline void destroy_compound_gigantic_page(struct page *page,
 static void update_and_free_page(struct hstate *h, struct page *page)
 {
        int i;
+       struct page *subpage = page;
 
        if (hstate_is_gigantic(h) && !gigantic_page_runtime_supported())
                return;
 
        h->nr_huge_pages--;
        h->nr_huge_pages_node[page_to_nid(page)]--;
-       for (i = 0; i < pages_per_huge_page(h); i++) {
-               page[i].flags &= ~(1 << PG_locked | 1 << PG_error |
+       for (i = 0; i < pages_per_huge_page(h);
+            i++, subpage = mem_map_next(subpage, page, i)) {
+               subpage->flags &= ~(1 << PG_locked | 1 << PG_error |
                                1 << PG_referenced | 1 << PG_dirty |
                                1 << PG_active | 1 << PG_private |
                                1 << PG_writeback);