1 files changed, 32 insertions, 0 deletions

diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index 632191770aac..f6fa0b9f83a8 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -442,6 +442,12 @@ void trace_buffer_unlock_commit(struct trace_array *tr,
                                 struct ring_buffer_event *event,
                                 unsigned long flags, int pc);
 
+struct ring_buffer_event *
+trace_current_buffer_lock_reserve(unsigned char type, unsigned long len,
+                                  unsigned long flags, int pc);
+void trace_current_buffer_unlock_commit(struct ring_buffer_event *event,
+                                        unsigned long flags, int pc);
+
 struct trace_entry *tracing_get_trace_entry(struct trace_array *tr,
                                                 struct trace_array_cpu *data);
 
@@ -720,4 +726,30 @@ static inline void trace_branch_disable(void)
 }
 #endif /* CONFIG_BRANCH_TRACER */
 
+/* trace event type bit fields, not numeric */
+enum {
+        TRACE_EVENT_TYPE_PRINTF         = 1,
+        TRACE_EVENT_TYPE_RAW            = 2,
+};
+
+struct ftrace_event_call {
+        char            *name;
+        char            *system;
+        struct dentry   *dir;
+        int             enabled;
+        int             (*regfunc)(void);
+        void            (*unregfunc)(void);
+        int             id;
+        struct dentry   *raw_dir;
+        int             raw_enabled;
+        int             type;
+        int             (*raw_init)(void);
+        int             (*raw_reg)(void);
+        void            (*raw_unreg)(void);
+};
+
+void event_trace_printk(unsigned long ip, const char *fmt, ...);
+extern struct ftrace_event_call __start_ftrace_events[];
+extern struct ftrace_event_call __stop_ftrace_events[];
+
 #endif /* _LINUX_KERNEL_TRACE_H */