Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753564AbaJTKLz (ORCPT ); Mon, 20 Oct 2014 06:11:55 -0400 Received: from lgeamrelo04.lge.com ([156.147.1.127]:64788 "EHLO lgeamrelo04.lge.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753416AbaJTKLs (ORCPT ); Mon, 20 Oct 2014 06:11:48 -0400 X-Original-SENDERIP: 10.177.220.156 X-Original-MAILFROM: minchan@kernel.org From: Minchan Kim 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 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> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1413799924-17946-1-git-send-email-minchan@kernel.org> References: <1413799924-17946-1-git-send-email-minchan@kernel.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/