mm, page-allocator: do not check the state of a non-existant buddy during free

[pandora-kernel.git] / mm / page_alloc.c

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 2a362c5..5faf876 100644 (file)
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -531,7 +531,7 @@ static inline void __free_one_page(struct page *page,
         * so it's less likely to be used soon and more likely to be merged
         * as a higher order page
         */
-       if ((order < MAX_ORDER-1) && pfn_valid_within(page_to_pfn(buddy))) {
+       if ((order < MAX_ORDER-2) && pfn_valid_within(page_to_pfn(buddy))) {
                struct page *higher_page, *higher_buddy;
                combined_idx = __find_combined_index(page_idx, order);
                higher_page = page + combined_idx - page_idx;