my usual problem with 64bit kernel

Commit Message

Domenico Andreoli Dec. 15, 2009, 8:25 p.m. UTC

None

Patch

--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -749,23 +749,6 @@  int move_freepages_block(struct zone *zone, struct page *page, int migratetype)
        return move_freepages(zone, start_page, end_page, migratetype);
 }
 
-/* Return the page with the lowest PFN in the list */
-static struct page *min_page(struct list_head *list)
-{
-       unsigned long min_pfn = -1UL;
-       struct page *min_page = NULL, *page;;
-
-       list_for_each_entry(page, list, lru) {
-               unsigned long pfn = page_to_pfn(page);
-               if (pfn < min_pfn) {
-                       min_pfn = pfn;
-                       min_page = page;
-               }
-       }
-
-       return min_page;
-}
-
 /* Remove an element from the buddy allocator from the fallback list */
 static struct page *__rmqueue_fallback(struct zone *zone, int order,
                                                int start_migratetype)
@@ -789,11 +772,8 @@  static struct page *__rmqueue_fallback(struct zone *zone, int order,
                        if (list_empty(&area->free_list[migratetype]))
                                continue;
 
-                       /* Bias kernel allocations towards low pfns */
                        page = list_entry(area->free_list[migratetype].next,
                                        struct page, lru);
-                       if (unlikely(start_migratetype != MIGRATE_MOVABLE))
-                               page = min_page(&area->free_list[migratetype]);
                        area->nr_free--;
 
                        /*