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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 449fa8e..11cac81 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)
{
return t->curr_ret_stack;
}
+
+static inline void pause_graph_tracing(void)
+{
+ atomic_inc(&current->tracing_graph_pause);
+}
+
+static inline void unpause_graph_tracing(void)
+{
+ atomic_dec(&current->tracing_graph_pause);
+}
#else
#define __notrace_funcgraph
@@ -412,6 +422,9 @@ static inline int task_curr_ret_stack(struct task_struct *tsk)
{
return -1;
}
+
+static inline void pause_graph_tracing(void) { }
+static inline void unpause_graph_tracing(void) { }
#endif
#ifdef CONFIG_TRACING