From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail138.messagelabs.com (mail138.messagelabs.com [216.82.249.35]) by kanga.kvack.org (Postfix) with SMTP id 50C466B01FE for ; Wed, 7 Apr 2010 22:56:20 -0400 (EDT) Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [PATCH 06 of 67] clear compound mapping Message-Id: <29716f3784363b71714a.1270691449@v2.random> In-Reply-To: References: Date: Thu, 08 Apr 2010 03:50:49 +0200 From: Andrea Arcangeli Sender: owner-linux-mm@kvack.org To: linux-mm@kvack.org, Andrew Morton Cc: Marcelo Tosatti , Adam Litke , Avi Kivity , Izik Eidus , Hugh Dickins , Nick Piggin , Rik van Riel , Mel Gorman , Dave Hansen , Benjamin Herrenschmidt , Ingo Molnar , Mike Travis , KAMEZAWA Hiroyuki , Christoph Lameter , Chris Wright , bpicco@redhat.com, KOSAKI Motohiro , Balbir Singh , Arnd Bergmann , "Michael S. Tsirkin" , Peter Zijlstra , Johannes Weiner , Daisuke Nishimura , Chris Mason List-ID: From: Andrea Arcangeli Clear compound mapping for anonymous compound pages like it already happens for regular anonymous pages. Signed-off-by: Andrea Arcangeli Acked-by: Rik van Riel Acked-by: Mel Gorman --- diff --git a/mm/page_alloc.c b/mm/page_alloc.c --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -609,6 +609,8 @@ 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@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org