From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pd0-f178.google.com (mail-pd0-f178.google.com [209.85.192.178]) by kanga.kvack.org (Postfix) with ESMTP id 9642D6B003C for ; Fri, 18 Jul 2014 02:52:47 -0400 (EDT) Received: by mail-pd0-f178.google.com with SMTP id w10so4461577pde.23 for ; Thu, 17 Jul 2014 23:52:47 -0700 (PDT) Received: from lgeamrelo04.lge.com (lgeamrelo04.lge.com. [156.147.1.127]) by mx.google.com with ESMTP id f10si2420599pdn.100.2014.07.17.23.52.45 for ; Thu, 17 Jul 2014 23:52:46 -0700 (PDT) From: Minchan Kim Subject: [PATCH v13 4/8] powerpc: add pmd_[dirty|mkclean] for THP Date: Fri, 18 Jul 2014 15:53:02 +0900 Message-Id: <1405666386-15095-5-git-send-email-minchan@kernel.org> In-Reply-To: <1405666386-15095-1-git-send-email-minchan@kernel.org> References: <1405666386-15095-1-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 , Hugh Dickins , Johannes Weiner , Rik van Riel , KOSAKI Motohiro , Mel Gorman , Jason Evans , Zhang Yanfei , "Kirill A. Shutemov" , Minchan Kim , Benjamin Herrenschmidt , Paul Mackerras , "Aneesh Kumar K.V" , linuxppc-dev@lists.ozlabs.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_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))) -- 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