1 files changed, 13 insertions, 0 deletions

diff --git a/tools/perf/util/thread.c b/tools/perf/util/thread.c
index f98032c135c..3acd37f5488 100644
--- a/tools/perf/util/thread.c
+++ b/tools/perf/util/thread.c
@@ -80,6 +80,19 @@ threads__findnew(pid_t pid, struct rb_root *threads, struct thread **last_match)
         return th;
 }
 
+struct thread *
+register_idle_thread(struct rb_root *threads, struct thread **last_match)
+{
+        struct thread *thread = threads__findnew(0, threads, last_match);
+
+        if (!thread || thread__set_comm(thread, "[idle]")) {
+                fprintf(stderr, "problem inserting idle task.\n");
+                exit(-1);
+        }
+
+        return thread;
+}
+
 void thread__insert_map(struct thread *self, struct map *map)
 {
         struct map *pos, *tmp;