diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h
index 43360c1..47bbdf9 100644
--- a/include/linux/ftrace_event.h
+++ b/include/linux/ftrace_event.h
@@ -137,13 +137,8 @@
 
 #define FTRACE_MAX_PROFILE_SIZE	2048
 
-struct perf_trace_buf {
-	char	buf[FTRACE_MAX_PROFILE_SIZE];
-	int	recursion;
-};
-
-extern struct perf_trace_buf	*perf_trace_buf;
-extern struct perf_trace_buf	*perf_trace_buf_nmi;
+extern char *perf_trace_buf;
+extern char *perf_trace_buf_nmi;
 
 #define MAX_FILTER_PRED		32
 #define MAX_FILTER_STR_VAL	256	/* Should handle KSYM_SYMBOL_LEN */
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index 36fe89f..74e98b1 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -874,6 +874,8 @@
 extern void perf_output_end(struct perf_output_handle *handle);
 extern void perf_output_copy(struct perf_output_handle *handle,
 			     const void *buf, unsigned int len);
+extern int perf_swevent_get_recursion_context(int **recursion);
+extern void perf_swevent_put_recursion_context(int *recursion);
 #else
 static inline void
 perf_event_task_sched_in(struct task_struct *task, int cpu)		{ }
@@ -902,6 +904,8 @@
 static inline void perf_event_comm(struct task_struct *tsk)		{ }
 static inline void perf_event_fork(struct task_struct *tsk)		{ }
 static inline void perf_event_init(void)				{ }
+static int perf_swevent_get_recursion_context(int **recursion)	{ return -1; }
+static void perf_swevent_put_recursion_context(int *recursion)		{ }
 
 #endif