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authorIngo Molnar <mingo@elte.hu>2008-05-12 21:20:43 +0200
committerThomas Gleixner <tglx@linutronix.de>2008-05-23 20:39:05 +0200
commitf43fdad8627fec2d21df92799b254dceb66c9c3c (patch)
tree09a9c54beaea06b814b3f4e6724375de282d944b /include
parent4c11d7aed389375253b59e2b1865eec96663c65d (diff)
ftrace: fix kexec
disable the tracer while kexec pulls the rug from under the old kernel. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include')
-rw-r--r--include/linux/ftrace.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index f5911d2d42c..a42390c1d6e 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -68,6 +68,13 @@ extern void ftrace_call(void);
extern void mcount_call(void);
#endif
+static inline void tracer_disable(void)
+{
+#ifdef CONFIG_FTRACE
+ ftrace_enabled = 0;
+#endif
+}
+
#ifdef CONFIG_FRAME_POINTER
/* TODO: need to fix this for ARM */
# define CALLER_ADDR0 ((unsigned long)__builtin_return_address(0))