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-rw-r--r--include/linux/ftrace.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index 449fa8e9e34f..11cac81eed08 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -401,6 +401,16 @@ static inline int task_curr_ret_stack(struct task_struct *t)
401{ 401{
402 return t->curr_ret_stack; 402 return t->curr_ret_stack;
403} 403}
404
405static inline void pause_graph_tracing(void)
406{
407 atomic_inc(&current->tracing_graph_pause);
408}
409
410static inline void unpause_graph_tracing(void)
411{
412 atomic_dec(&current->tracing_graph_pause);
413}
404#else 414#else
405 415
406#define __notrace_funcgraph 416#define __notrace_funcgraph
@@ -412,6 +422,9 @@ static inline int task_curr_ret_stack(struct task_struct *tsk)
412{ 422{
413 return -1; 423 return -1;
414} 424}
425
426static inline void pause_graph_tracing(void) { }
427static inline void unpause_graph_tracing(void) { }
415#endif 428#endif
416 429
417#ifdef CONFIG_TRACING 430#ifdef CONFIG_TRACING