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-rw-r--r--kernel/trace/trace.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index 3a020fb82a34..90493220c362 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -786,6 +786,8 @@ extern void trace_find_cmdline(int pid, char comm[]);
extern int trace_find_tgid(int pid);
extern void trace_event_follow_fork(struct trace_array *tr, bool enable);
+extern int trace_events_enabled(struct trace_array *tr, const char *system);
+
#ifdef CONFIG_DYNAMIC_FTRACE
extern unsigned long ftrace_update_tot_cnt;
extern unsigned long ftrace_number_of_pages;