These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / arch / x86 / include / asm / alternative.h

diff --git a/kernel/arch/x86/include/asm/alternative.h b/kernel/arch/x86/include/asm/alternative.h
index ba32af0..7bfc85b 100644 (file)
--- a/kernel/arch/x86/include/asm/alternative.h
+++ b/kernel/arch/x86/include/asm/alternative.h
@@ -52,6 +52,12 @@ struct alt_instr {
        u8  padlen;             /* length of build-time padding */
 } __packed;
 
+/*
+ * Debug flag that can be tested to see whether alternative
+ * instructions were patched in already:
+ */
+extern int alternatives_patched;
+
 extern void alternative_instructions(void);
 extern void apply_alternatives(struct alt_instr *start, struct alt_instr *end);