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Message-Id: <1410818997-9432-29-git-send-email-kamal@canonical.com>
Date: Mon, 15 Sep 2014 15:07:18 -0700
From: Kamal Mostafa <kamal@...onical.com>
To: linux-kernel@...r.kernel.org, stable@...r.kernel.org,
kernel-team@...ts.ubuntu.com
Cc: "David S. Miller" <davem@...emloft.net>,
Kamal Mostafa <kamal@...onical.com>
Subject: [PATCH 3.13 028/187] sparc64: Add membar to Niagara2 memcpy code.
3.13.11.7 -stable review patch. If anyone has any objections, please let me know.
------------------
From: "David S. Miller" <davem@...emloft.net>
[ Upstream commit 5aa4ecfd0ddb1e6dcd1c886e6c49677550f581aa ]
This is the prevent previous stores from overlapping the block stores
done by the memcpy loop.
Based upon a glibc patch by Jose E. Marchesi
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Kamal Mostafa <kamal@...onical.com>
---
arch/sparc/lib/NG2memcpy.S | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/sparc/lib/NG2memcpy.S b/arch/sparc/lib/NG2memcpy.S
index 2c20ad6..30eee6e 100644
--- a/arch/sparc/lib/NG2memcpy.S
+++ b/arch/sparc/lib/NG2memcpy.S
@@ -236,6 +236,7 @@ FUNC_NAME: /* %o0=dst, %o1=src, %o2=len */
*/
VISEntryHalf
+ membar #Sync
alignaddr %o1, %g0, %g0
add %o1, (64 - 1), %o4
--
1.9.1
--
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