From: "Joel Fernandes (Google)" <joel@joelfernandes.org>
To: linux-kernel@vger.kernel.org
Cc: "Joel Fernandes (Google)" <joel@joelfernandes.org>,
Jonathan Corbet <corbet@lwn.net>,
Josh Triplett <josh@joshtriplett.org>,
Lai Jiangshan <jiangshanlai@gmail.com>,
linux-doc@vger.kernel.org,
Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
"Paul E. McKenney" <paulmck@linux.ibm.com>,
Steven Rostedt <rostedt@goodmis.org>,
pantin@google.com
Subject: [PATCH RFC 3/5] doc: rcu: Remove obsolete suggestion from checklist
Date: Fri, 5 Oct 2018 16:18:12 -0700 [thread overview]
Message-ID: <20181005231815.170433-4-joel@joelfernandes.org> (raw)
In-Reply-To: <20181005231815.170433-1-joel@joelfernandes.org>
call_rcu_bh is now implemented in terms of call_rcu, so the suggestion
to use a different API for speed benefits is not accurate anymore.
Update the document accordingly.
Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
---
Documentation/RCU/checklist.txt | 6 +-----
1 file changed, 1 insertion(+), 5 deletions(-)
diff --git a/Documentation/RCU/checklist.txt b/Documentation/RCU/checklist.txt
index 8860ab2a897a..cc22ce49618d 100644
--- a/Documentation/RCU/checklist.txt
+++ b/Documentation/RCU/checklist.txt
@@ -285,11 +285,7 @@ over a rather long period of time, but improvements are always welcome!
here is that superuser already has lots of ways to crash
the machine.
- d. Use call_rcu_bh() rather than call_rcu(), in order to take
- advantage of call_rcu_bh()'s faster grace periods. (This
- is only a partial solution, though.)
-
- e. Periodically invoke synchronize_rcu(), permitting a limited
+ d. Periodically invoke synchronize_rcu(), permitting a limited
number of updates per grace period.
The same cautions apply to call_rcu_bh(), call_rcu_sched(),
--
2.19.0.605.g01d371f741-goog
next prev parent reply other threads:[~2018-10-05 23:18 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-05 23:18 [PATCH RFC 0/5] rcu doc updates for whatisRCU and checklist Joel Fernandes (Google)
2018-10-05 23:18 ` [PATCH RFC 1/5] doc: rcu: Update core and full API in whatisRCU Joel Fernandes (Google)
2018-10-05 23:18 ` [PATCH RFC 2/5] doc: rcu: Add more rationale for using rcu_read_lock_sched in checklist Joel Fernandes (Google)
2018-10-05 23:18 ` Joel Fernandes (Google) [this message]
2018-10-05 23:18 ` [PATCH RFC 4/5] doc: rcu: Remove obsolete checklist item about synchronize_rcu usage Joel Fernandes (Google)
2018-10-05 23:18 ` [PATCH RFC 5/5] doc: rcu: Encourage use of rcu_barrier in checklist Joel Fernandes (Google)
2018-10-05 23:46 ` [PATCH RFC 0/5] rcu doc updates for whatisRCU and checklist Theodore Y. Ts'o
2018-10-06 1:59 ` Joel Fernandes
2018-10-06 3:45 ` Paul E. McKenney
2018-10-06 4:40 ` Joel Fernandes
2018-10-06 22:47 ` Theodore Y. Ts'o
2018-10-06 4:50 ` Joel Fernandes
2018-10-06 5:34 ` Theodore Y. Ts'o
2018-10-06 16:49 ` Paul E. McKenney
2018-10-06 0:13 ` Paul E. McKenney
2018-10-06 2:10 ` Joel Fernandes
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