diff options
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/page_alloc.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 9242d13f4ff..20759803a64 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -783,6 +783,17 @@ static int move_freepages_block(struct zone *zone, struct page *page, return move_freepages(zone, start_page, end_page, migratetype); } +static void change_pageblock_range(struct page *pageblock_page, + int start_order, int migratetype) +{ + int nr_pageblocks = 1 << (start_order - pageblock_order); + + while (nr_pageblocks--) { + set_pageblock_migratetype(pageblock_page, migratetype); + pageblock_page += pageblock_nr_pages; + } +} + /* Remove an element from the buddy allocator from the fallback list */ static inline struct page * __rmqueue_fallback(struct zone *zone, int order, int start_migratetype) @@ -836,8 +847,9 @@ __rmqueue_fallback(struct zone *zone, int order, int start_migratetype) list_del(&page->lru); rmv_page_order(page); - if (current_order == pageblock_order) - set_pageblock_migratetype(page, + /* Take ownership for orders >= pageblock_order */ + if (current_order >= pageblock_order) + change_pageblock_range(page, current_order, start_migratetype); expand(zone, page, order, current_order, area, migratetype); |