tracepoints: Do not trace when cpu is offline

[pandora-kernel.git] / include / linux / tracepoint.h

diff --git a/include/linux/tracepoint.h b/include/linux/tracepoint.h
index f3680aa..41d1756 100644 (file)
--- a/include/linux/tracepoint.h
+++ b/include/linux/tracepoint.h
@@ -14,8 +14,10 @@
  * See the file COPYING for more details.
  */
 
+#include <linux/smp.h>
 #include <linux/errno.h>
 #include <linux/types.h>
+#include <linux/cpumask.h>
 #include <linux/rcupdate.h>
 #include <linux/jump_label.h>
 
@@ -126,6 +128,9 @@ static inline void tracepoint_synchronize_unregister(void)
                void *it_func;                                          \
                void *__data;                                           \
                                                                        \
+               if (!cpu_online(raw_smp_processor_id()))                \
+                       return;                                         \
+                                                                       \
                if (!(cond))                                            \
                        return;                                         \
                rcu_read_lock_sched_notrace();                          \