From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pa0-f53.google.com (mail-pa0-f53.google.com [209.85.220.53]) by kanga.kvack.org (Postfix) with ESMTP id DC5006B025E for ; Mon, 30 Nov 2015 01:39:43 -0500 (EST) Received: by pacdm15 with SMTP id dm15so174822780pac.3 for ; Sun, 29 Nov 2015 22:39:43 -0800 (PST) Received: from lgeamrelo11.lge.com (LGEAMRELO11.lge.com. [156.147.23.51]) by mx.google.com with ESMTPS id di6si8295004pad.172.2015.11.29.22.39.29 for (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Sun, 29 Nov 2015 22:39:30 -0800 (PST) From: Minchan Kim Subject: [PATCH v5 08/12] sparc: add pmd_[dirty|mkclean] for THP Date: Mon, 30 Nov 2015 15:39:39 +0900 Message-Id: <1448865583-2446-9-git-send-email-minchan@kernel.org> In-Reply-To: <1448865583-2446-1-git-send-email-minchan@kernel.org> References: <1448865583-2446-1-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 , Mel Gorman , KOSAKI Motohiro , Jason Evans , Daniel Micay , "Kirill A. Shutemov" , Shaohua Li , Michal Hocko , yalin.wang2010@gmail.com, Andy Lutomirski , Minchan Kim 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_dirty and pmd_mkclean for THP page MADV_FREE support. Signed-off-by: Minchan Kim Signed-off-by: Andrew Morton --- arch/sparc/include/asm/pgtable_64.h | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/arch/sparc/include/asm/pgtable_64.h b/arch/sparc/include/asm/pgtable_64.h index f5bfcd66aeb5..7a38d6a576c5 100644 --- a/arch/sparc/include/asm/pgtable_64.h +++ b/arch/sparc/include/asm/pgtable_64.h @@ -710,6 +710,15 @@ static inline pmd_t pmd_mkdirty(pmd_t pmd) return __pmd(pte_val(pte)); } +static inline pmd_t pmd_mkclean(pmd_t pmd) +{ + pte_t pte = __pte(pmd_val(pmd)); + + pte = pte_mkclean(pte); + + return __pmd(pte_val(pte)); +} + static inline pmd_t pmd_mkyoung(pmd_t pmd) { pte_t pte = __pte(pmd_val(pmd)); -- 1.9.1 -- 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