commit 74f4e369fc5b52433ad824cef32d3bf1304549be
author Ingo Molnar <mingo@elte.hu> Mon May 12 21:21:15 2008 +0200
committer Thomas Gleixner <tglx@linutronix.de> Fri May 23 22:34:56 2008 +0200
tree c70d073a2740821f52d8b2b09f01626a06201e74
parent 5b82a1b08a00b2adca3d9dd9777efff40b7aaaa1

ftrace: stacktrace fix

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

include/linux/ftrace.h

diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index 0d3714e..017ab44 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -120,4 +120,12 @@
 # define trace_preempt_off(a0, a1)		do { } while (0)
 #endif
 
+#ifdef CONFIG_CONTEXT_SWITCH_TRACER
+extern void
+ftrace_special(unsigned long arg1, unsigned long arg2, unsigned long arg3);
+#else
+static inline void
+ftrace_special(unsigned long arg1, unsigned long arg2, unsigned long arg3) { }
+#endif
+
 #endif /* _LINUX_FTRACE_H */