From b4062b16094038334d9bbadac0397a3fc9e981b0 Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@suse.de>
Date: Tue, 26 Sep 2006 10:52:28 +0200
Subject: [PATCH] Support patchable lock prefix for pure assembly files

Signed-off-by: Andi Kleen <ak@suse.de>
---
 include/asm-x86_64/alternative-asm.i | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
 create mode 100644 include/asm-x86_64/alternative-asm.i

(limited to 'include/asm-x86_64/alternative-asm.i')

diff --git a/include/asm-x86_64/alternative-asm.i b/include/asm-x86_64/alternative-asm.i
new file mode 100644
index 00000000000..e4041f4fa4d
--- /dev/null
+++ b/include/asm-x86_64/alternative-asm.i
@@ -0,0 +1,14 @@
+#include <linux/config.h>
+
+#ifdef CONFIG_SMP
+	.macro LOCK_PREFIX
+1:	lock
+	.section .smp_locks,"a"
+	.align 8
+	.quad 1b
+	.previous
+	.endm
+#else
+	.macro LOCK_PREFIX
+	.endm
+#endif
-- 
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