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From: Minchan Kim <minchan@kernel.org>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	Michael Kerrisk <mtk.manpages@gmail.com>,
	linux-api@vger.kernel.org, Hugh Dickins <hughd@google.com>,
	Johannes Weiner <hannes@cmpxchg.org>,
	Rik van Riel <riel@redhat.com>, Mel Gorman <mgorman@suse.de>,
	KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
	Jason Evans <je@fb.com>, Daniel Micay <danielmicay@gmail.com>,
	"Kirill A. Shutemov" <kirill@shutemov.name>,
	Shaohua Li <shli@kernel.org>, Michal Hocko <mhocko@suse.cz>,
	yalin.wang2010@gmail.com, Andy Lutomirski <luto@amacapital.net>,
	Minchan Kim <minchan@kernel.org>
Subject: [PATCH v5 11/12] arm64: add pmd_mkclean for THP
Date: Mon, 30 Nov 2015 15:39:42 +0900	[thread overview]
Message-ID: <1448865583-2446-12-git-send-email-minchan@kernel.org> (raw)
In-Reply-To: <1448865583-2446-1-git-send-email-minchan@kernel.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_mkclean for THP page MADV_FREE support.

Signed-off-by: Minchan Kim <minchan@kernel.org>
---
 arch/arm64/include/asm/pgtable.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h
index d2a1879b466b..fab3ddb30df7 100644
--- a/arch/arm64/include/asm/pgtable.h
+++ b/arch/arm64/include/asm/pgtable.h
@@ -340,6 +340,7 @@ static inline pgprot_t mk_sect_prot(pgprot_t prot)
 #define pmd_wrprotect(pmd)	pte_pmd(pte_wrprotect(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))
-- 
1.9.1


WARNING: multiple messages have this Message-ID (diff)
From: Minchan Kim <minchan@kernel.org>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	Michael Kerrisk <mtk.manpages@gmail.com>,
	linux-api@vger.kernel.org, Hugh Dickins <hughd@google.com>,
	Johannes Weiner <hannes@cmpxchg.org>,
	Rik van Riel <riel@redhat.com>, Mel Gorman <mgorman@suse.de>,
	KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
	Jason Evans <je@fb.com>, Daniel Micay <danielmicay@gmail.com>,
	"Kirill A. Shutemov" <kirill@shutemov.name>,
	Shaohua Li <shli@kernel.org>, Michal Hocko <mhocko@suse.cz>,
	yalin.wang2010@gmail.com, Andy Lutomirski <luto@amacapital.net>,
	Minchan Kim <minchan@kernel.org>
Subject: [PATCH v5 11/12] arm64: add pmd_mkclean for THP
Date: Mon, 30 Nov 2015 15:39:42 +0900	[thread overview]
Message-ID: <1448865583-2446-12-git-send-email-minchan@kernel.org> (raw)
In-Reply-To: <1448865583-2446-1-git-send-email-minchan@kernel.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_mkclean for THP page MADV_FREE support.

Signed-off-by: Minchan Kim <minchan@kernel.org>
---
 arch/arm64/include/asm/pgtable.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h
index d2a1879b466b..fab3ddb30df7 100644
--- a/arch/arm64/include/asm/pgtable.h
+++ b/arch/arm64/include/asm/pgtable.h
@@ -340,6 +340,7 @@ static inline pgprot_t mk_sect_prot(pgprot_t prot)
 #define pmd_wrprotect(pmd)	pte_pmd(pte_wrprotect(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))
-- 
1.9.1

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  parent reply	other threads:[~2015-11-30  6:40 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-11-30  6:39 [PATCH v5 00/12] MADV_FREE support Minchan Kim
2015-11-30  6:39 ` Minchan Kim
2015-11-30  6:39 ` [PATCH v5 01/12] mm: support madvise(MADV_FREE) Minchan Kim
2015-11-30  6:39   ` Minchan Kim
2015-11-30  8:20   ` Mika Penttilä
2015-11-30  8:20     ` Mika Penttilä
2015-11-30  8:20     ` Mika Penttilä
2015-11-30  9:22     ` Minchan Kim
2015-11-30  9:22       ` Minchan Kim
2015-11-30  9:22       ` Minchan Kim
2015-11-30  6:39 ` [PATCH v5 02/12] mm: define MADV_FREE for some arches Minchan Kim
2015-11-30  6:39   ` Minchan Kim
2015-11-30  6:39   ` Minchan Kim
2015-11-30  6:39 ` [PATCH v5 03/12] arch: uapi: asm: mman.h: Let MADV_FREE have same value for all architectures Minchan Kim
2015-11-30  6:39   ` Minchan Kim
2015-11-30  6:39   ` Minchan Kim
2015-11-30  6:39   ` Minchan Kim
2015-11-30  6:39 ` [PATCH v5 04/12] mm: free swp_entry in madvise_free Minchan Kim
2015-11-30  6:39   ` Minchan Kim
2015-11-30  6:39 ` [PATCH v5 05/12] mm: move lazily freed pages to inactive list Minchan Kim
2015-11-30  6:39   ` Minchan Kim
2015-11-30  6:39 ` [PATCH v5 06/12] mm: mark stable page dirty in KSM Minchan Kim
2015-11-30  6:39   ` Minchan Kim
2015-11-30  6:39 ` [PATCH v5 07/12] x86: add pmd_[dirty|mkclean] for THP Minchan Kim
2015-11-30  6:39   ` Minchan Kim
2015-11-30  6:39 ` [PATCH v5 08/12] sparc: " Minchan Kim
2015-11-30  6:39   ` Minchan Kim
2015-11-30  6:39 ` [PATCH v5 09/12] powerpc: " Minchan Kim
2015-11-30  6:39   ` Minchan Kim
2015-11-30  6:39 ` [PATCH v5 10/12] arm: add pmd_mkclean " Minchan Kim
2015-11-30  6:39   ` Minchan Kim
2015-11-30  6:39 ` Minchan Kim [this message]
2015-11-30  6:39   ` [PATCH v5 11/12] arm64: " Minchan Kim
2015-11-30  6:39 ` [PATCH v5 12/12] mm: don't split THP page when syscall is called Minchan Kim
2015-11-30  6:39   ` Minchan Kim
2016-01-28  7:16 ` [PATCH v5 00/12] MADV_FREE support Michael Kerrisk (man-pages)
2016-01-28  7:16   ` Michael Kerrisk (man-pages)
2016-01-29  7:32   ` Minchan Kim
2016-01-29  7:32     ` Minchan Kim
2016-01-29  7:32     ` Minchan Kim

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