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 10/12] arm: add pmd_mkclean for THP
Date: Mon, 30 Nov 2015 15:39:41 +0900 [thread overview]
Message-ID: <1448865583-2446-11-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/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 59d1457ca551..dc46398bc3a5 100644
--- a/arch/arm/include/asm/pgtable-3level.h
+++ b/arch/arm/include/asm/pgtable-3level.h
@@ -240,6 +240,7 @@ PMD_BIT_FUNC(wrprotect, |= L_PMD_SECT_RDONLY);
PMD_BIT_FUNC(mkold, &= ~PMD_SECT_AF);
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
next prev parent reply other threads:[~2015-11-30 6:41 UTC|newest]
Thread overview: 17+ 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 ` [PATCH v5 01/12] mm: support madvise(MADV_FREE) Minchan Kim
2015-11-30 8:20 ` Mika Penttilä
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 ` [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 ` [PATCH v5 04/12] mm: free swp_entry in madvise_free 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 ` [PATCH v5 06/12] mm: mark stable page dirty in KSM 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 ` [PATCH v5 08/12] sparc: " Minchan Kim
2015-11-30 6:39 ` [PATCH v5 09/12] powerpc: " Minchan Kim
2015-11-30 6:39 ` Minchan Kim [this message]
2015-11-30 6:39 ` [PATCH v5 11/12] arm64: add pmd_mkclean " Minchan Kim
2015-11-30 6:39 ` [PATCH v5 12/12] mm: don't split THP page when syscall is called Minchan Kim
2016-01-28 7:16 ` [PATCH v5 00/12] MADV_FREE support Michael Kerrisk (man-pages)
2016-01-29 7:32 ` Minchan Kim
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