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yaml --- r: 277232 b: refs/heads/master c: 045fb93 h: refs/heads/master v: v3
git-mirror · Dec 11, 2011 · 52864b1 · 52864b1
1 parent 1adc768
commit 52864b1
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Showing 2 changed files with 11 additions and 3 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 182dd4b277177e8465ad11cd9f85f282946b5578
+refs/heads/master: 045fb9315a2129023d70a0eecf0942e18fca4fcd
diff --git a/trunk/include/trace/events/rcu.h b/trunk/include/trace/events/rcu.h
@@ -241,8 +241,16 @@ TRACE_EVENT(rcu_fqs,
 
 /*
  * Tracepoint for dyntick-idle entry/exit events.  These take a string
- * as argument: "Start" for entering dyntick-idle mode and "End" for
- * leaving it.
+ * as argument: "Start" for entering dyntick-idle mode, "End" for
+ * leaving it, "--=" for events moving towards idle, and "++=" for events
+ * moving away from idle.  "Error on entry: not idle task" and "Error on
+ * exit: not idle task" indicate that a non-idle task is erroneously
+ * toying with the idle loop.
+ *
+ * These events also take a pair of numbers, which indicate the nesting
+ * depth before and after the event of interest.  Note that task-related
+ * events use the upper bits of each number, while interrupt-related
+ * events use the lower bits.
  */
 TRACE_EVENT(rcu_dyntick,