From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756660AbbCSROV (ORCPT ); Thu, 19 Mar 2015 13:14:21 -0400 Received: from mga11.intel.com ([192.55.52.93]:33172 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751493AbbCSRKp (ORCPT ); Thu, 19 Mar 2015 13:10:45 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.11,430,1422950400"; d="scan'208";a="694632320" 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 10/16] page-flags: define PG_swapbacked behavior on compound pages Date: Thu, 19 Mar 2015 19:08:16 +0200 Message-Id: <1426784902-125149-11-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 PG_swapbacked is used for transparent huge pages. For head pages only. Let's use NO_TAIL policy. Signed-off-by: Kirill A. Shutemov --- include/linux/page-flags.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h index be691551896b..d1d08508984d 100644 --- a/include/linux/page-flags.h +++ b/include/linux/page-flags.h @@ -290,9 +290,9 @@ PAGEFLAG(Foreign, foreign, NO_COMPOUND) PAGEFLAG(Reserved, reserved, NO_COMPOUND) __CLEARPAGEFLAG(Reserved, reserved, NO_COMPOUND) -PAGEFLAG(SwapBacked, swapbacked, ANY) - __CLEARPAGEFLAG(SwapBacked, swapbacked, ANY) - __SETPAGEFLAG(SwapBacked, swapbacked, ANY) +PAGEFLAG(SwapBacked, swapbacked, NO_TAIL) + __CLEARPAGEFLAG(SwapBacked, swapbacked, NO_TAIL) + __SETPAGEFLAG(SwapBacked, swapbacked, NO_TAIL) /* * Private page markings that may be used by the filesystem that owns the page -- 2.1.4