From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pd0-f176.google.com (mail-pd0-f176.google.com [209.85.192.176]) by kanga.kvack.org (Postfix) with ESMTP id A310B900015 for ; Thu, 19 Mar 2015 13:10:46 -0400 (EDT) Received: by pdbni2 with SMTP id ni2so81815100pdb.1 for ; Thu, 19 Mar 2015 10:10:46 -0700 (PDT) Received: from mga11.intel.com (mga11.intel.com. [192.55.52.93]) by mx.google.com with ESMTP id g5si4051260pda.134.2015.03.19.10.10.45 for ; Thu, 19 Mar 2015 10:10:45 -0700 (PDT) From: "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> 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: owner-linux-mm@kvack.org List-ID: 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" 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 -- 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