From patchwork Wed Jul 9 06:22:28 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Minchan Kim X-Patchwork-Id: 4511961 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 78C399F26C for ; Wed, 9 Jul 2014 06:25:35 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id B39A5202AE for ; Wed, 9 Jul 2014 06:25:34 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id E22D5201EC for ; Wed, 9 Jul 2014 06:25:33 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1X4lHa-0000qD-GD; Wed, 09 Jul 2014 06:23:10 +0000 Received: from lgeamrelo01.lge.com ([156.147.1.125]) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1X4lHU-0000ZK-Br for linux-arm-kernel@lists.infradead.org; Wed, 09 Jul 2014 06:23:05 +0000 Received: from unknown (HELO localhost.localdomain) (10.177.220.169) by 156.147.1.125 with ESMTP; 9 Jul 2014 15:22:36 +0900 X-Original-SENDERIP: 10.177.220.169 X-Original-MAILFROM: minchan@kernel.org From: Minchan Kim To: Andrew Morton Subject: [PATCH v12 7/8] arm64: add pmd_[dirty|mkclean] for THP Date: Wed, 9 Jul 2014 15:22:28 +0900 Message-Id: <1404886949-17695-8-git-send-email-minchan@kernel.org> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1404886949-17695-1-git-send-email-minchan@kernel.org> References: <1404886949-17695-1-git-send-email-minchan@kernel.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20140708_232304_775793_76129B68 X-CRM114-Status: UNSURE ( 8.08 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -0.7 (/) Cc: Jason Evans , Rik van Riel , Catalin Marinas , Minchan Kim , Linux API , Hugh Dickins , linux-kernel@vger.kernel.org, Will Deacon , Russell King , linux-mm@kvack.org, Zhang Yanfei , Michael Kerrisk , KOSAKI Motohiro , Johannes Weiner , "Kirill A. Shutemov" , Steve Capper , linux-arm-kernel@lists.infradead.org, Mel Gorman X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-2.6 required=5.0 tests=BAYES_00,RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP 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. Cc: Catalin Marinas Cc: Will Deacon Cc: Steve Capper Cc: Russell King Cc: linux-arm-kernel@lists.infradead.org Signed-off-by: Minchan Kim Acked-by: Catalin Marinas --- arch/arm64/include/asm/pgtable.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h index 579702086488..f3ec01cef04f 100644 --- a/arch/arm64/include/asm/pgtable.h +++ b/arch/arm64/include/asm/pgtable.h @@ -240,10 +240,12 @@ static inline pmd_t pte_pmd(pte_t pte) #endif #define pmd_young(pmd) pte_young(pmd_pte(pmd)) +#define pmd_dirty(pmd) pte_dirty(pmd_pte(pmd)) #define pmd_wrprotect(pmd) pte_pmd(pte_wrprotect(pmd_pte(pmd))) #define pmd_mksplitting(pmd) pte_pmd(pte_mkspecial(pmd_pte(pmd))) #define pmd_mkold(pmd) pte_pmd(pte_mkold(pmd_pte(pmd))) #define pmd_mkwrite(pmd) pte_pmd(pte_mkwrite(pmd_pte(pmd))) +#define pmd_mkclean(pmd) pte_pmd(pte_mkclean(pmd_pte(pmd))) #define pmd_mkdirty(pmd) pte_pmd(pte_mkdirty(pmd_pte(pmd))) #define pmd_mkyoung(pmd) pte_pmd(pte_mkyoung(pmd_pte(pmd))) #define pmd_mknotpresent(pmd) (__pmd(pmd_val(pmd) & ~PMD_TYPE_MASK))