From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030243AbbCSRLm (ORCPT ); Thu, 19 Mar 2015 13:11:42 -0400 Received: from mga03.intel.com ([134.134.136.65]:23628 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756538AbbCSRLa (ORCPT ); Thu, 19 Mar 2015 13:11:30 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.11,430,1422950400"; d="scan'208";a="667640612" From: "Kirill A. Shutemov" To: Andrew Morton , Andrea Arcangeli , Hugh Dickins Cc: Dave Hansen , Mel Gorman , Rik van Riel , Vlastimil Babka , Christoph Lameter , Naoya Horiguchi , Steve Capper , "Aneesh Kumar K.V" , Johannes Weiner , Michal Hocko , Jerome Marchand , linux-kernel@vger.kernel.org, linux-mm@kvack.org, "Kirill A. Shutemov" Subject: [PATCH 11/16] page-flags: define PG_swapcache behavior on compound pages Date: Thu, 19 Mar 2015 19:08:17 +0200 Message-Id: <1426784902-125149-12-git-send-email-kirill.shutemov@linux.intel.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1426784902-125149-1-git-send-email-kirill.shutemov@linux.intel.com> References: <1426784902-125149-1-git-send-email-kirill.shutemov@linux.intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Swap cannot handle compound pages so far. Transparent huge pages are split on the way to swap. Signed-off-by: Kirill A. Shutemov --- include/linux/page-flags.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h index d1d08508984d..9ea90bb8cb89 100644 --- a/include/linux/page-flags.h +++ b/include/linux/page-flags.h @@ -330,7 +330,7 @@ PAGEFLAG_FALSE(HighMem) #endif #ifdef CONFIG_SWAP -PAGEFLAG(SwapCache, swapcache, ANY) +PAGEFLAG(SwapCache, swapcache, NO_COMPOUND) #else PAGEFLAG_FALSE(SwapCache) #endif -- 2.1.4