1 files changed, 19 insertions, 2 deletions

diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h
index 0be028527633..5ac97a42950d 100644
--- a/include/linux/ftrace_event.h
+++ b/include/linux/ftrace_event.h
@@ -143,6 +143,16 @@ struct ftrace_event_class {
         int                     (*raw_init)(struct ftrace_event_call *);
 };
 
+enum {
+        TRACE_EVENT_FL_ENABLED_BIT,
+        TRACE_EVENT_FL_FILTERED_BIT,
+};
+
+enum {
+        TRACE_EVENT_FL_ENABLED  = (1 << TRACE_EVENT_FL_ENABLED_BIT),
+        TRACE_EVENT_FL_FILTERED = (1 << TRACE_EVENT_FL_FILTERED_BIT),
+};
+
 struct ftrace_event_call {
         struct list_head        list;
         struct ftrace_event_class *class;
@@ -154,8 +164,15 @@ struct ftrace_event_call {
         void                    *mod;
         void                    *data;
 
-        int                     enabled;
-        int                     filter_active;
+        /*
+         * 32 bit flags:
+         *   bit 1:             enabled
+         *   bit 2:             filter_active
+         *
+         *  Must hold event_mutex to change.
+         */
+        unsigned int            flags;
+
         int                     perf_refcount;
 };