[PATCH for review] [37/145] x86_64: Support patchable lock prefix for pure assembly files

Andi Kleen
2006-08-10T20:19:26Z

include/asm-x86_64/alternative-asm.i | 14 ++++++++++++++
1 files changed, 14 insertions(+)

Index: linux/include/asm-x86_64/alternative-asm.i
===================================================================
--- /dev/null
+++ linux/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