diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 95ad42de5a87..8f4f27841b71 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -620,20 +620,23 @@ static void free_one_page(struct zone *zone, struct page *page, int order, spin_unlock(&zone->lock); } -static void __free_pages_ok(struct page *page, unsigned int order) +static bool free_pages_prepare(struct page *page, unsigned int order) { - unsigned long flags; int i; int bad = 0; - int wasMlocked = __TestClearPageMlocked(page); trace_mm_page_free_direct(page, order); kmemcheck_free_shadow(page, order); - for (i = 0 ; i < (1 << order) ; ++i) - bad += free_pages_check(page + i); + for (i = 0; i < (1 << order); i++) { + struct page *pg = page + i; + + if (PageAnon(pg)) + pg->mapping = NULL; + bad += free_pages_check(pg); + } if (bad) - return; + return false; if (!PageHighMem(page)) { debug_check_no_locks_freed(page_address(page),PAGE_SIZE<mapping = NULL; - if (free_pages_check(page)) + if (!free_pages_prepare(page, 0)) return; - if (!PageHighMem(page)) { - debug_check_no_locks_freed(page_address(page), PAGE_SIZE); - debug_check_no_obj_freed(page_address(page), PAGE_SIZE); - } - arch_free_page(page, 0); - kernel_map_pages(page, 1, 0); - migratetype = get_pageblock_migratetype(page); set_page_private(page, migratetype); local_irq_save(flags);