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authorSteven Rostedt <rostedt@goodmis.org>2008-10-23 09:33:02 -0400
committerIngo Molnar <mingo@elte.hu>2008-10-23 10:00:19 -0400
commit81adbdc029ecc416d56563e7f159100181dd711d (patch)
treeff7ed7b0fb284c22eb30e690a85e2e9e083c4162 /include/linux/ftrace.h
parentab9a0918cbf0fa8883301838df8dbc8fc085ff50 (diff)
ftrace: only have ftrace_kill atomic
When an anomaly is detected, we need a way to completely disable ftrace. Right now we have two functions: ftrace_kill and ftrace_kill_atomic. The ftrace_kill tries to do it in a "nice" way by converting everything back to a nop. The "nice" way is dangerous itself, so this patch removes it and only has the "atomic" version, which is all that is needed. Signed-off-by: Steven Rostedt <srostedt@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/linux/ftrace.h')
-rw-r--r--include/linux/ftrace.h3
1 files changed, 1 insertions, 2 deletions
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index 79fa10cbdcfb..ac58e94668b7 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -40,7 +40,7 @@ extern void ftrace_stub(unsigned long a0, unsigned long a1);
40# define register_ftrace_function(ops) do { } while (0) 40# define register_ftrace_function(ops) do { } while (0)
41# define unregister_ftrace_function(ops) do { } while (0) 41# define unregister_ftrace_function(ops) do { } while (0)
42# define clear_ftrace_function(ops) do { } while (0) 42# define clear_ftrace_function(ops) do { } while (0)
43static inline void ftrace_kill_atomic(void) { } 43static inline void ftrace_kill(void) { }
44#endif /* CONFIG_FUNCTION_TRACER */ 44#endif /* CONFIG_FUNCTION_TRACER */
45 45
46#ifdef CONFIG_DYNAMIC_FTRACE 46#ifdef CONFIG_DYNAMIC_FTRACE
@@ -117,7 +117,6 @@ static inline void ftrace_release(void *start, unsigned long size) { }
117 117
118/* totally disable ftrace - can not re-enable after this */ 118/* totally disable ftrace - can not re-enable after this */
119void ftrace_kill(void); 119void ftrace_kill(void);
120void ftrace_kill_atomic(void);
121 120
122static inline void tracer_disable(void) 121static inline void tracer_disable(void)
123{ 122{