From: Andrea Arcangeli <aarcange@xxxxxxxxxx> Clear compound mapping for anonymous compound pages like it already happens for regular anonymous pages. Signed-off-by: Andrea Arcangeli <aarcange@xxxxxxxxxx> Acked-by: Rik van Riel <riel@xxxxxxxxxx> Acked-by: Mel Gorman <mel@xxxxxxxxx> --- diff --git a/mm/page_alloc.c b/mm/page_alloc.c --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -629,6 +629,8 @@ static void __free_pages_ok(struct page trace_mm_page_free_direct(page, order); kmemcheck_free_shadow(page, order); + if (PageAnon(page)) + page->mapping = NULL; for (i = 0 ; i < (1 << order) ; ++i) bad += free_pages_check(page + i); if (bad) -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>