From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from e23smtp09.au.ibm.com (e23smtp09.au.ibm.com [202.81.31.142]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 174801A00EF for ; Mon, 4 Aug 2014 20:50:23 +1000 (EST) Received: from /spool/local by e23smtp09.au.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Mon, 4 Aug 2014 20:50:20 +1000 Received: from d23relay05.au.ibm.com (d23relay05.au.ibm.com [9.190.235.152]) by d23dlp03.au.ibm.com (Postfix) with ESMTP id 5EE883578054 for ; Mon, 4 Aug 2014 20:50:15 +1000 (EST) Received: from d23av04.au.ibm.com (d23av04.au.ibm.com [9.190.235.139]) by d23relay05.au.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id s74AR7rd7274846 for ; Mon, 4 Aug 2014 20:27:08 +1000 Received: from d23av04.au.ibm.com (localhost [127.0.0.1]) by d23av04.au.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id s74AoCsv029969 for ; Mon, 4 Aug 2014 20:50:13 +1000 From: "Aneesh Kumar K.V" To: Minchan Kim , Andrew Morton Subject: Re: [PATCH v13 4/8] powerpc: add pmd_[dirty|mkclean] for THP In-Reply-To: <1405666386-15095-5-git-send-email-minchan@kernel.org> References: <1405666386-15095-1-git-send-email-minchan@kernel.org> <1405666386-15095-5-git-send-email-minchan@kernel.org> Date: Mon, 04 Aug 2014 16:20:07 +0530 Message-ID: <87ppggedgg.fsf@linux.vnet.ibm.com> MIME-Version: 1.0 Content-Type: text/plain Cc: Jason Evans , Rik van Riel , Minchan Kim , 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 List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Minchan Kim writes: > 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 Reviewed-by: Aneesh Kumar K.V > 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