rcu: Make rcu_barrier() understand about missing rcuo kthreads

[cascardo/linux.git] / include / trace / events / rcu.h

diff --git a/include/trace/events/rcu.h b/include/trace/events/rcu.h
index aca3822..e335e7d 100644 (file)
--- a/include/trace/events/rcu.h
+++ b/include/trace/events/rcu.h
@@ -180,9 +180,12 @@ TRACE_EVENT(rcu_grace_period_init,
  * argument is a string as follows:
  *
  *     "WakeEmpty": Wake rcuo kthread, first CB to empty list.
+ *     "WakeEmptyIsDeferred": Wake rcuo kthread later, first CB to empty list.
  *     "WakeOvf": Wake rcuo kthread, CB list is huge.
+ *     "WakeOvfIsDeferred": Wake rcuo kthread later, CB list is huge.
  *     "WakeNot": Don't wake rcuo kthread.
  *     "WakeNotPoll": Don't wake rcuo kthread because it is polling.
+ *     "DeferredWake": Carried out the "IsDeferred" wakeup.
  *     "Poll": Start of new polling cycle for rcu_nocb_poll.
  *     "Sleep": Sleep waiting for CBs for !rcu_nocb_poll.
  *     "WokeEmpty": rcuo kthread woke to find empty list.
@@ -657,18 +660,18 @@ TRACE_EVENT(rcu_torture_read,
 /*
  * Tracepoint for _rcu_barrier() execution.  The string "s" describes
  * the _rcu_barrier phase:
- *     "Begin": rcu_barrier_callback() started.
- *     "Check": rcu_barrier_callback() checking for piggybacking.
- *     "EarlyExit": rcu_barrier_callback() piggybacked, thus early exit.
- *     "Inc1": rcu_barrier_callback() piggyback check counter incremented.
- *     "Offline": rcu_barrier_callback() found offline CPU
- *     "OnlineNoCB": rcu_barrier_callback() found online no-CBs CPU.
- *     "OnlineQ": rcu_barrier_callback() found online CPU with callbacks.
- *     "OnlineNQ": rcu_barrier_callback() found online CPU, no callbacks.
+ *     "Begin": _rcu_barrier() started.
+ *     "Check": _rcu_barrier() checking for piggybacking.
+ *     "EarlyExit": _rcu_barrier() piggybacked, thus early exit.
+ *     "Inc1": _rcu_barrier() piggyback check counter incremented.
+ *     "OfflineNoCB": _rcu_barrier() found callback on never-online CPU
+ *     "OnlineNoCB": _rcu_barrier() found online no-CBs CPU.
+ *     "OnlineQ": _rcu_barrier() found online CPU with callbacks.
+ *     "OnlineNQ": _rcu_barrier() found online CPU, no callbacks.
  *     "IRQ": An rcu_barrier_callback() callback posted on remote CPU.
  *     "CB": An rcu_barrier_callback() invoked a callback, not the last.
  *     "LastCB": An rcu_barrier_callback() invoked the last callback.
- *     "Inc2": rcu_barrier_callback() piggyback check counter incremented.
+ *     "Inc2": _rcu_barrier() piggyback check counter incremented.
  * The "cpu" argument is the CPU or -1 if meaningless, the "cnt" argument
  * is the count of remaining callbacks, and "done" is the piggybacking count.
  */