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[PATCH v3 11/17] arm: add pmd_mkclean for THP

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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/arm/include/asm/pgtable-3level.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/include/asm/pgtable-3level.h b/arch/arm/include/asm/pgtable-3level.h
index a745a2a53853..6d6012a320b2 100644
--- a/arch/arm/include/asm/pgtable-3level.h
+++ b/arch/arm/include/asm/pgtable-3level.h
@@ -249,6 +249,7 @@ PMD_BIT_FUNC(mkold,	&= ~PMD_SECT_AF);
 PMD_BIT_FUNC(mksplitting, |= L_PMD_SECT_SPLITTING);
 PMD_BIT_FUNC(mkwrite,   &= ~L_PMD_SECT_RDONLY);
 PMD_BIT_FUNC(mkdirty,   |= L_PMD_SECT_DIRTY);
+PMD_BIT_FUNC(mkclean,   &= ~L_PMD_SECT_DIRTY);
 PMD_BIT_FUNC(mkyoung,   |= PMD_SECT_AF);
 
 #define pmd_mkhuge(pmd)		(__pmd(pmd_val(pmd) & ~PMD_TABLE_BIT))
-- 
1.9.1

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[PATCH v3 00/17] MADFV_FREE support Minchan Kim <minchan@kernel.org> - 2015-11-12 05:40 +0100
  [PATCH v3 08/17] x86: add pmd_[dirty|mkclean] for THP Minchan Kim <minchan@kernel.org> - 2015-11-12 05:40 +0100
  [PATCH v3 01/17] mm: support madvise(MADV_FREE) Minchan Kim <minchan@kernel.org> - 2015-11-12 05:40 +0100
    Re: [PATCH v3 01/17] mm: support madvise(MADV_FREE) Andy Lutomirski <luto@amacapital.net> - 2015-11-12 06:00 +0100
      Re: [PATCH v3 01/17] mm: support madvise(MADV_FREE) Daniel Micay <danielmicay@gmail.com> - 2015-11-12 06:30 +0100
        Re: [PATCH v3 01/17] mm: support madvise(MADV_FREE) Minchan Kim <minchan@kernel.org> - 2015-11-13 07:20 +0100
          Re: [PATCH v3 01/17] mm: support madvise(MADV_FREE) Daniel Micay <danielmicay@gmail.com> - 2015-11-13 07:20 +0100
            Re: [PATCH v3 01/17] mm: support madvise(MADV_FREE) Minchan Kim <minchan@kernel.org> - 2015-11-13 07:40 +0100
              Re: [PATCH v3 01/17] mm: support madvise(MADV_FREE) Daniel Micay <danielmicay@gmail.com> - 2015-11-13 07:50 +0100
                Re: [PATCH v3 01/17] mm: support madvise(MADV_FREE) Minchan Kim <minchan@kernel.org> - 2015-11-13 08:10 +0100
                Re: [PATCH v3 01/17] mm: support madvise(MADV_FREE) Daniel Micay <danielmicay@gmail.com> - 2015-11-13 09:20 +0100
                Re: [PATCH v3 01/17] mm: support madvise(MADV_FREE) Andy Lutomirski <luto@amacapital.net> - 2015-11-13 20:50 +0100
                Re: [PATCH v3 01/17] mm: support madvise(MADV_FREE) Minchan Kim <minchan@kernel.org> - 2015-11-16 03:20 +0100
                Re: [PATCH v3 01/17] mm: support madvise(MADV_FREE) yalin wang <yalin.wang2010@gmail.com> - 2015-11-16 04:20 +0100
    Re: [PATCH v3 01/17] mm: support madvise(MADV_FREE) "Kirill A. Shutemov" <kirill@shutemov.name> - 2015-11-12 12:30 +0100
      Re: [PATCH v3 01/17] mm: support madvise(MADV_FREE) Minchan Kim <minchan@kernel.org> - 2015-11-13 07:20 +0100
  [PATCH v3 11/17] arm: add pmd_mkclean for THP Minchan Kim <minchan@kernel.org> - 2015-11-12 05:40 +0100

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