linux-kernel - [PATCH] remove unnecessary cache flush on v6 copypage

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Date:	Wed, 6 Jul 2011 19:19:59 -0700
From:	heechul Yun <heechul@...inois.edu>
To:	Russell King - ARM Linux <linux@....linux.org.uk>,
	Catalin Marinas <catalin.marinas@....com>
Cc:	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	linux-kernel@...r.kernel.org
Subject: [PATCH] remove unnecessary cache flush on v6 copypage

ARM: mm: remove unnecessary cache flush on v6 copypage

Signed-off-by: Heechul Yun <heechul@...inois.edu>
--
arch/arm/mm/copypage-v6.c |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)

diff --git a/arch/arm/mm/copypage-v6.c b/arch/arm/mm/copypage-v6.c
index bdba6c6..63cca00 100644
--- a/arch/arm/mm/copypage-v6.c
+++ b/arch/arm/mm/copypage-v6.c
@@ -41,7 +41,6 @@ static void v6_copy_user_highpage_nonaliasing(struct page *to,
       kfrom = kmap_atomic(from, KM_USER0);
       kto = kmap_atomic(to, KM_USER1);
       copy_page(kto, kfrom);
-       __cpuc_flush_dcache_area(kto, PAGE_SIZE);
       kunmap_atomic(kto, KM_USER1);
       kunmap_atomic(kfrom, KM_USER0);
 }

--

Heechul
--
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