From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pd0-f175.google.com (mail-pd0-f175.google.com [209.85.192.175]) by kanga.kvack.org (Postfix) with ESMTP id B74526B0071 for ; Mon, 20 Oct 2014 06:11:53 -0400 (EDT) Received: by mail-pd0-f175.google.com with SMTP id v10so4680256pde.6 for ; Mon, 20 Oct 2014 03:11:53 -0700 (PDT) Received: from lgeamrelo04.lge.com (lgeamrelo04.lge.com. [156.147.1.127]) by mx.google.com with ESMTP id qa1si7331705pac.215.2014.10.20.03.11.48 for ; Mon, 20 Oct 2014 03:11:49 -0700 (PDT) From: Minchan Kim Subject: [PATCH v17 5/7] arm: add pmd_mkclean for THP Date: Mon, 20 Oct 2014 19:12:02 +0900 Message-Id: <1413799924-17946-6-git-send-email-minchan@kernel.org> In-Reply-To: <1413799924-17946-1-git-send-email-minchan@kernel.org> References: <1413799924-17946-1-git-send-email-minchan@kernel.org> Sender: owner-linux-mm@kvack.org List-ID: To: Andrew Morton Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, Michael Kerrisk , linux-api@vger.kernel.org, Hugh Dickins , Johannes Weiner , Rik van Riel , KOSAKI Motohiro , Mel Gorman , Jason Evans , zhangyanfei@cn.fujitsu.com, "Kirill A. Shutemov" , Minchan Kim , Catalin Marinas , Russell King , linux-arm-kernel@lists.infradead.org, Will Deacon , Steve Capper MADV_FREE needs pmd_dirty and pmd_mkclean for detecting recent overwrite of the contents since MADV_FREE syscall is called for THP page. This patch adds pmd_mkclean for THP page MADV_FREE support. Cc: Catalin Marinas Cc: Russell King Cc: linux-arm-kernel@lists.infradead.org Acked-by: Will Deacon Acked-by: Steve Capper Signed-off-by: Minchan Kim --- arch/arm/include/asm/pgtable-3level.h | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/include/asm/pgtable-3level.h b/arch/arm/include/asm/pgtable-3level.h index a31ecdad4b59..54dc91486c16 100644 --- a/arch/arm/include/asm/pgtable-3level.h +++ b/arch/arm/include/asm/pgtable-3level.h @@ -249,6 +249,7 @@ PMD_BIT_FUNC(mkold, &= ~PMD_SECT_AF); PMD_BIT_FUNC(mksplitting, |= L_PMD_SECT_SPLITTING); PMD_BIT_FUNC(mkwrite, &= ~L_PMD_SECT_RDONLY); PMD_BIT_FUNC(mkdirty, |= L_PMD_SECT_DIRTY); +PMD_BIT_FUNC(mkclean, &= ~L_PMD_SECT_DIRTY); PMD_BIT_FUNC(mkyoung, |= PMD_SECT_AF); #define pmd_mkhuge(pmd) (__pmd(pmd_val(pmd) & ~PMD_TABLE_BIT)) -- 2.0.0 -- 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