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 v17 5/7] arm: add pmd_mkclean for THP
Date: Mon, 20 Oct 2014 19:12:02 +0900 [thread overview]
Message-ID: <1413799924-17946-6-git-send-email-minchan@kernel.org> (raw)
In-Reply-To: <1413799924-17946-1-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 a31ecdad4b59..54dc91486c16 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))
--
2.0.0
next prev parent reply other threads:[~2014-10-20 10:11 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-20 10:11 [PATCH v17 0/7] MADV_FREE support Minchan Kim
2014-10-20 10:11 ` [PATCH v17 1/7] mm: support madvise(MADV_FREE) Minchan Kim
2014-11-27 14:47 ` Michal Hocko
2014-11-30 23:56 ` Minchan Kim
2014-12-02 10:01 ` Michal Hocko
2014-12-03 0:00 ` Minchan Kim
2014-12-03 10:13 ` Michal Hocko
2014-12-05 7:08 ` Minchan Kim
2014-12-05 8:32 ` Michal Hocko
2015-02-03 16:39 ` Michael Kerrisk (man-pages)
2015-02-03 23:47 ` Minchan Kim
2015-02-06 0:33 ` Shaohua Li
2015-02-06 5:51 ` Minchan Kim
2015-02-06 18:29 ` Shaohua Li
2015-02-09 7:15 ` Minchan Kim
2015-02-10 22:38 ` Shaohua Li
2015-02-11 0:56 ` Minchan Kim
2015-02-12 0:14 ` Shaohua Li
2015-02-16 4:36 ` Minchan Kim
2015-02-06 12:58 ` Michal Hocko
2015-02-06 18:32 ` Shaohua Li
2015-02-06 18:40 ` Rik van Riel
2015-02-04 12:52 ` Michal Hocko
2014-10-20 10:11 ` [PATCH v17 2/7] x86: add pmd_[dirty|mkclean] for THP Minchan Kim
2014-10-20 10:12 ` [PATCH v17 3/7] sparc: " Minchan Kim
2014-10-20 10:12 ` [PATCH v17 4/7] powerpc: " Minchan Kim
2014-10-20 10:12 ` Minchan Kim [this message]
2014-10-20 10:12 ` [PATCH v17 6/7] arm64: " Minchan Kim
2014-10-20 10:12 ` [PATCH v17 7/7] mm: Don't split THP page when syscall is called Minchan Kim
2014-11-27 15:49 ` Michal Hocko
2014-12-01 0:11 ` Minchan Kim
2014-11-13 22:58 ` [PATCH v17 0/7] MADV_FREE support Minchan Kim
2014-11-14 1:52 ` Andrew Morton
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