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>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>,
linuxppc-dev@lists.ozlabs.org,
"Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Subject: [PATCH v17 4/7] powerpc: add pmd_[dirty|mkclean] for THP
Date: Mon, 20 Oct 2014 19:12:01 +0900 [thread overview]
Message-ID: <1413799924-17946-5-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_dirty and pmd_mkclean for THP page MADV_FREE
support.
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: linuxppc-dev@lists.ozlabs.org
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Minchan Kim <minchan@kernel.org>
---
arch/powerpc/include/asm/pgtable-ppc64.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/powerpc/include/asm/pgtable-ppc64.h b/arch/powerpc/include/asm/pgtable-ppc64.h
index 889c6fa9ee01..7c07e5975871 100644
--- a/arch/powerpc/include/asm/pgtable-ppc64.h
+++ b/arch/powerpc/include/asm/pgtable-ppc64.h
@@ -468,9 +468,11 @@ static inline pte_t *pmdp_ptep(pmd_t *pmd)
#define pmd_pfn(pmd) pte_pfn(pmd_pte(pmd))
#define pmd_young(pmd) pte_young(pmd_pte(pmd))
+#define pmd_dirty(pmd) pte_dirty(pmd_pte(pmd))
#define pmd_mkold(pmd) pte_pmd(pte_mkold(pmd_pte(pmd)))
#define pmd_wrprotect(pmd) pte_pmd(pte_wrprotect(pmd_pte(pmd)))
#define pmd_mkdirty(pmd) pte_pmd(pte_mkdirty(pmd_pte(pmd)))
+#define pmd_mkclean(pmd) pte_pmd(pte_mkclean(pmd_pte(pmd)))
#define pmd_mkyoung(pmd) pte_pmd(pte_mkyoung(pmd_pte(pmd)))
#define pmd_mkwrite(pmd) pte_pmd(pte_mkwrite(pmd_pte(pmd)))
--
2.0.0
next prev parent reply other threads:[~2014-10-20 10:12 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
[not found] ` <20141127144725.GB19157-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
2014-11-30 23:56 ` Minchan Kim
2014-12-02 10:01 ` Michal Hocko
[not found] ` <20141202100125.GD27014-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
2014-12-03 0:00 ` Minchan Kim
2014-12-03 10:13 ` Michal Hocko
[not found] ` <20141203101329.GB23236-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
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
[not found] ` <20150206003311.GA2347-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
2015-02-06 12:58 ` Michal Hocko
2015-02-06 18:32 ` Shaohua Li
2015-02-06 18:40 ` Rik van Riel
[not found] ` <54D0F9BC.4060306-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
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 ` Minchan Kim [this message]
2014-10-20 10:12 ` [PATCH v17 5/7] arm: add pmd_mkclean " Minchan Kim
2014-10-20 10:12 ` [PATCH v17 6/7] arm64: add pmd_[dirty|mkclean] " 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
[not found] ` <1413799924-17946-1-git-send-email-minchan-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
2014-10-20 10:12 ` [PATCH v17 3/7] sparc: add pmd_[dirty|mkclean] for THP 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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