diff options
Diffstat (limited to 'mm/page_alloc.c')
| -rw-r--r-- | mm/page_alloc.c | 15 |
1 files changed, 5 insertions, 10 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 442f1298f9a..cb17e8b800d 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -1027,6 +1027,10 @@ static int try_to_steal_freepages(struct zone *zone, struct page *page, { int current_order = page_order(page); + /* + * When borrowing from MIGRATE_CMA, we need to release the excess + * buddy pages to CMA itself. + */ if (is_migrate_cma(fallback_type)) return fallback_type; @@ -1091,17 +1095,8 @@ __rmqueue_fallback(struct zone *zone, int order, int start_migratetype) list_del(&page->lru); rmv_page_order(page); - /* - * Borrow the excess buddy pages as well, irrespective - * of whether we stole freepages, or took ownership of - * the pageblock or not. - * - * Exception: When borrowing from MIGRATE_CMA, release - * the excess buddy pages to CMA itself. - */ expand(zone, page, order, current_order, area, - is_migrate_cma(migratetype) - ? migratetype : start_migratetype); + new_type); trace_mm_page_alloc_extfrag(page, order, current_order, start_migratetype, migratetype, new_type); |