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authorPaul E. McKenney <paulmck@linux.ibm.com>2019-04-01 18:57:01 +0200
committerPaul E. McKenney <paulmck@linux.ibm.com>2019-08-13 23:32:39 +0200
commitf7c9a9b664fb32a127e8e9a987b52023b92c3a0b (patch)
tree48d1f0294e3544f792b79345f1da50ad6c554892 /include/trace
parentrcu/nocb: Rename rcu_organize_nocb_kthreads() local variable (diff)
downloadlinux-f7c9a9b664fb32a127e8e9a987b52023b92c3a0b.tar.xz
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rcu/nocb: Rename and document no-CB CB kthread sleep trace event
The nocb_cb_wait() function traces a "FollowerSleep" trace_rcu_nocb_wake() event, which never was documented and is now misleading. This commit therefore changes "FollowerSleep" to "CBSleep", documents this, and updates the documentation for "Sleep" as well. Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>
Diffstat (limited to 'include/trace')
-rw-r--r--include/trace/events/rcu.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/trace/events/rcu.h b/include/trace/events/rcu.h
index 02a3f78f7cd8..313324d1b135 100644
--- a/include/trace/events/rcu.h
+++ b/include/trace/events/rcu.h
@@ -267,7 +267,8 @@ TRACE_EVENT_RCU(rcu_exp_funnel_lock,
* "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.
+ * "Sleep": Sleep waiting for GP for !rcu_nocb_poll.
+ * "CBSleep": 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.