From: paulmck@kernel.org
To: rcu@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, mingo@kernel.org,
jiangshanlai@gmail.com, dipankar@in.ibm.com,
akpm@linux-foundation.org, mathieu.desnoyers@efficios.com,
josh@joshtriplett.org, tglx@linutronix.de, peterz@infradead.org,
rostedt@goodmis.org, dhowells@redhat.com, edumazet@google.com,
fweisbec@gmail.com, oleg@redhat.com, joel@joelfernandes.org,
"Paul E. McKenney" <paulmck@linux.ibm.com>
Subject: [PATCH tip/core/rcu 6/8] rcu: Update descriptions for rcu_nocb_wake tracepoint
Date: Wed, 2 Oct 2019 18:33:03 -0700 [thread overview]
Message-ID: <20191003013305.12854-6-paulmck@kernel.org> (raw)
In-Reply-To: <20191003013243.GA12705@paulmck-ThinkPad-P72>
From: "Paul E. McKenney" <paulmck@linux.ibm.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>
---
include/trace/events/rcu.h | 35 +++++++++++++++++++++--------------
1 file changed, 21 insertions(+), 14 deletions(-)
diff --git a/include/trace/events/rcu.h b/include/trace/events/rcu.h
index afa8985..4609f2e 100644
--- a/include/trace/events/rcu.h
+++ b/include/trace/events/rcu.h
@@ -258,20 +258,27 @@ TRACE_EVENT_RCU(rcu_exp_funnel_lock,
* the number of the offloaded CPU are extracted. The third and final
* 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 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.
- * "WokeQueue": Partial enqueue now complete.
+ * "AlreadyAwake": The to-be-awakened rcuo kthread is already awake.
+ * "Bypass": rcuo GP kthread sees non-empty ->nocb_bypass.
+ * "CBSleep": rcuo CB kthread sleeping waiting for CBs.
+ * "Check": rcuo GP kthread checking specified CPU for work.
+ * "DeferredWake": Timer expired or polled check, time to wake.
+ * "DoWake": The to-be-awakened rcuo kthread needs to be awakened.
+ * "EndSleep": Done waiting for GP for !rcu_nocb_poll.
+ * "FirstBQ": New CB to empty ->nocb_bypass (->cblist maybe non-empty).
+ * "FirstBQnoWake": FirstBQ plus rcuo kthread need not be awakened.
+ * "FirstBQwake": FirstBQ plus rcuo kthread must be awakened.
+ * "FirstQ": New CB to empty ->cblist (->nocb_bypass maybe non-empty).
+ * "NeedWaitGP": rcuo GP kthread must wait on a grace period.
+ * "Poll": Start of new polling cycle for rcu_nocb_poll.
+ * "Sleep": Sleep waiting for GP for !rcu_nocb_poll.
+ * "Timer": Deferred-wake timer expired.
+ * "WakeEmptyIsDeferred": Wake rcuo kthread later, first CB to empty list.
+ * "WakeEmpty": Wake rcuo kthread, first CB to empty list.
+ * "WakeNot": Don't wake rcuo kthread.
+ * "WakeNotPoll": Don't wake rcuo kthread because it is polling.
+ * "WakeOvfIsDeferred": Wake rcuo kthread later, CB list is huge.
+ * "WokeEmpty": rcuo CB kthread woke to find empty list.
*/
TRACE_EVENT_RCU(rcu_nocb_wake,
--
2.9.5
next prev parent reply other threads:[~2019-10-03 1:33 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-03 1:32 [PATCH tip/core/rcu 0/8] Fixes for v5.5 Paul E. McKenney
2019-10-03 1:32 ` [PATCH tip/core/rcu 1/8] rcu: Remove unused function hlist_bl_del_init_rcu() paulmck
2019-10-03 1:32 ` [PATCH tip/core/rcu 2/8] rcu: Several rcu_segcblist functions can be static paulmck
2019-10-03 1:33 ` [PATCH tip/core/rcu 3/8] workqueue: Convert for_each_wq to use built-in list check paulmck
2019-10-03 1:33 ` [PATCH tip/core/rcu 4/8] rcu: Ensure that ->rcu_urgent_qs is set before resched IPI paulmck
2019-10-03 11:43 ` Steven Rostedt
2019-10-03 13:45 ` Paul E. McKenney
2019-10-03 1:33 ` [PATCH tip/core/rcu 5/8] rcu: Remove obsolete descriptions for rcu_barrier tracepoint paulmck
2019-10-03 1:33 ` paulmck [this message]
2019-10-03 1:33 ` [PATCH tip/core/rcu 7/8] rcu: Update descriptions for rcu_future_grace_period tracepoint paulmck
2019-10-03 1:33 ` [PATCH tip/core/rcu 8/8] rcu: Fix uninitialized variable in nocb_gp_wait() paulmck
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20191003013305.12854-6-paulmck@kernel.org \
--to=paulmck@kernel.org \
--cc=akpm@linux-foundation.org \
--cc=dhowells@redhat.com \
--cc=dipankar@in.ibm.com \
--cc=edumazet@google.com \
--cc=fweisbec@gmail.com \
--cc=jiangshanlai@gmail.com \
--cc=joel@joelfernandes.org \
--cc=josh@joshtriplett.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mathieu.desnoyers@efficios.com \
--cc=mingo@kernel.org \
--cc=oleg@redhat.com \
--cc=paulmck@linux.ibm.com \
--cc=peterz@infradead.org \
--cc=rcu@vger.kernel.org \
--cc=rostedt@goodmis.org \
--cc=tglx@linutronix.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).