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>,
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
Mel Gorman <mgorman@suse.de>, Jason Evans <je@fb.com>,
zhangyanfei@cn.fujitsu.com,
"Kirill A. Shutemov" <kirill@shutemov.name>,
Minchan Kim <minchan@kernel.org>,
Catalin Marinas <catalin.marinas@arm.com>,
Russell King <linux@arm.linux.org.uk>,
linux-arm-kernel@lists.infradead.org,
Will Deacon <will.deacon@arm.com>,
Steve Capper <steve.capper@linaro.org>
Subject: [PATCH v16 5/7] arm: add pmd_mkclean for THP
Date: Mon, 1 Sep 2014 16:20:46 +0900 [thread overview]
Message-ID: <1409556048-5045-6-git-send-email-minchan@kernel.org> (raw)
In-Reply-To: <1409556048-5045-1-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.
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: linux-arm-kernel@lists.infradead.org
Acked-by: Will Deacon <will.deacon@arm.com>
Acked-by: Steve Capper <steve.capper@linaro.org>
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 06e0bc0f8b00..bc913a065270 100644
--- a/arch/arm/include/asm/pgtable-3level.h
+++ b/arch/arm/include/asm/pgtable-3level.h
@@ -234,6 +234,7 @@ 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))
--
2.0.0
next prev parent reply other threads:[~2014-09-01 7:20 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-01 7:20 [PATCH v16 0/7] MADV_FREE support Minchan Kim
2014-09-01 7:20 ` [PATCH v16 1/7] mm: support madvise(MADV_FREE) Minchan Kim
2014-09-16 6:08 ` SeongJae Park
2014-09-19 6:17 ` Minchan Kim
2014-09-01 7:20 ` [PATCH v16 2/7] x86: add pmd_[dirty|mkclean] for THP Minchan Kim
2014-09-01 7:20 ` [PATCH v16 3/7] sparc: " Minchan Kim
2014-09-01 7:20 ` [PATCH v16 4/7] powerpc: " Minchan Kim
2014-09-01 7:20 ` Minchan Kim [this message]
2014-09-01 7:20 ` [PATCH v16 6/7] arm64: " Minchan Kim
2014-09-01 7:20 ` [PATCH v16 7/7] mm: Don't split THP page when syscall is called Minchan Kim
2014-09-11 23:10 ` [PATCH v16 0/7] MADV_FREE support Minchan Kim
2014-09-19 6:17 ` Minchan Kim
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