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Message-Id: <0d543dade2be5f0ddb268c6d6ea0e86938e3bf42.1408535000.git.jslaby@suse.cz> Date: Wed, 20 Aug 2014 13:43:15 +0200 From: Jiri Slaby <jslaby@...e.cz> To: stable@...r.kernel.org Cc: linux-kernel@...r.kernel.org, "David S. Miller" <davem@...emloft.net>, Jiri Slaby <jslaby@...e.cz> Subject: [PATCH 3.12 052/104] sparc64: Add membar to Niagara2 memcpy code. From: "David S. Miller" <davem@...emloft.net> 3.12-stable review patch. If anyone has any objections, please let me know. =============== [ 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: Jiri Slaby <jslaby@...e.cz> --- 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 2c20ad63ddbf..30eee6e8a81b 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 -- 2.0.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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