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authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>2013-08-15 13:23:23 -0700
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2013-09-23 09:18:16 -0700
commit69a79bb12a81024d718e73c52e886907a3777b34 (patch)
tree0beef5d898f1373dbc5b4834d24d676e73ea1da2 /include/trace
parent756cbf6befe6f59b0b3e0967d92a66c11e2566ed (diff)
rcu: Track rcu_nocb_kthread()'s sleeping and awakening
This commit adds event traces to track all of rcu_nocb_kthread()'s blocking and awakening. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'include/trace')
-rw-r--r--include/trace/events/rcu.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/trace/events/rcu.h b/include/trace/events/rcu.h
index 4301cd9e3ee..a087d82ed43 100644
--- a/include/trace/events/rcu.h
+++ b/include/trace/events/rcu.h
@@ -183,8 +183,12 @@ TRACE_EVENT(rcu_grace_period_init,
* "WakeOvf": Wake rcuo kthread, CB list is huge.
* "WakeNot": Don't wake rcuo kthread.
* "WakeNotPoll": Don't wake rcuo kthread because it is polling.
+ * "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.
* "WokeNonEmpty": rcuo kthread woke to find non-empty list.
+ * "WaitQueue": Enqueue partially done, timed wait for it to complete.
+ * "WokeQueue": Partial enqueue now complete.
*/
TRACE_EVENT(rcu_nocb_wake,