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-rw-r--r--include/asm-x86/alternative-asm.h22
1 files changed, 22 insertions, 0 deletions
diff --git a/include/asm-x86/alternative-asm.h b/include/asm-x86/alternative-asm.h
new file mode 100644
index 000000000000..e2077d343c33
--- /dev/null
+++ b/include/asm-x86/alternative-asm.h
@@ -0,0 +1,22 @@
+#ifdef __ASSEMBLY__
+
+#ifdef CONFIG_X86_32
+# define X86_ALIGN .long
+#else
+# define X86_ALIGN .quad
+#endif
+
+#ifdef CONFIG_SMP
+ .macro LOCK_PREFIX
+1: lock
+ .section .smp_locks,"a"
+ .align 4
+ X86_ALIGN 1b
+ .previous
+ .endm
+#else
+ .macro LOCK_PREFIX
+ .endm
+#endif
+
+#endif /* __ASSEMBLY__ */
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