From patchwork Tue Jul 8 06:03:41 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Minchan Kim X-Patchwork-Id: 367801 Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3E0101400E1 for ; Tue, 8 Jul 2014 16:04:49 +1000 (EST) Received: from ozlabs.org (ozlabs.org [103.22.144.67]) by lists.ozlabs.org (Postfix) with ESMTP id 29EF51A01AB for ; Tue, 8 Jul 2014 16:04:49 +1000 (EST) X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org Received: from lgeamrelo01.lge.com (lgeamrelo01.lge.com [156.147.1.125]) by lists.ozlabs.org (Postfix) with ESMTP id EEDD61A0012 for ; Tue, 8 Jul 2014 16:03:57 +1000 (EST) Received: from unknown (HELO localhost.localdomain) (10.177.220.169) by 156.147.1.125 with ESMTP; 8 Jul 2014 15:03:44 +0900 X-Original-SENDERIP: 10.177.220.169 X-Original-MAILFROM: minchan@kernel.org From: Minchan Kim To: Andrew Morton Subject: [PATCH v11 4/7] powerpc: add pmd_[dirty|mkclean] for THP Date: Tue, 8 Jul 2014 15:03:41 +0900 Message-Id: <1404799424-1120-5-git-send-email-minchan@kernel.org> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1404799424-1120-1-git-send-email-minchan@kernel.org> References: <1404799424-1120-1-git-send-email-minchan@kernel.org> Cc: Jason Evans , Rik van Riel , Minchan Kim , "Aneesh Kumar K.V" , Linux API , Hugh Dickins , linux-kernel@vger.kernel.org, linux-mm@kvack.org, Zhang Yanfei , Michael Kerrisk , KOSAKI Motohiro , Johannes Weiner , "Kirill A. Shutemov" , linuxppc-dev@lists.ozlabs.org, Paul Mackerras , Mel Gorman X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.16 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" 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: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: "Aneesh Kumar K.V" Cc: linuxppc-dev@lists.ozlabs.org Signed-off-by: Minchan Kim --- arch/powerpc/include/asm/pgtable-ppc64.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/powerpc/include/asm/pgtable-ppc64.h b/arch/powerpc/include/asm/pgtable-ppc64.h index eb9261024f51..c9a4bbe8e179 100644 --- a/arch/powerpc/include/asm/pgtable-ppc64.h +++ b/arch/powerpc/include/asm/pgtable-ppc64.h @@ -468,9 +468,11 @@ static inline pte_t *pmdp_ptep(pmd_t *pmd) #define pmd_pfn(pmd) pte_pfn(pmd_pte(pmd)) #define pmd_young(pmd) pte_young(pmd_pte(pmd)) +#define pmd_dirty(pmd) pte_dirty(pmd_pte(pmd)) #define pmd_mkold(pmd) pte_pmd(pte_mkold(pmd_pte(pmd))) #define pmd_wrprotect(pmd) pte_pmd(pte_wrprotect(pmd_pte(pmd))) #define pmd_mkdirty(pmd) pte_pmd(pte_mkdirty(pmd_pte(pmd))) +#define pmd_mkclean(pmd) pte_pmd(pte_mkclean(pmd_pte(pmd))) #define pmd_mkyoung(pmd) pte_pmd(pte_mkyoung(pmd_pte(pmd))) #define pmd_mkwrite(pmd) pte_pmd(pte_mkwrite(pmd_pte(pmd)))