From: "Paul E. McKenney" <paulmck@kernel.org>
To: rcu@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, kernel-team@fb.com,
mingo@kernel.org, jiangshanlai@gmail.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@kernel.org>,
Frederic Weisbecker <frederic@kernel.org>
Subject: [PATCH tip/core/rcu 1/3] doc: Fix statement of RCU's memory-ordering requirements
Date: Tue, 11 May 2021 15:44:36 -0700 [thread overview]
Message-ID: <20210511224438.2892442-1-paulmck@kernel.org> (raw)
In-Reply-To: <20210511224402.GA2892361@paulmck-ThinkPad-P17-Gen-1>
The sentence defining the relationship of accesses before a grace
period to read-side accesses following that same grace period was
missing a small word: "not". This commit therefore adds it.
Reported-by: Frederic Weisbecker <frederic@kernel.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
---
.../RCU/Design/Memory-Ordering/Tree-RCU-Memory-Ordering.rst | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/Documentation/RCU/Design/Memory-Ordering/Tree-RCU-Memory-Ordering.rst b/Documentation/RCU/Design/Memory-Ordering/Tree-RCU-Memory-Ordering.rst
index a648b423ba0e..3f6ce41ee0c5 100644
--- a/Documentation/RCU/Design/Memory-Ordering/Tree-RCU-Memory-Ordering.rst
+++ b/Documentation/RCU/Design/Memory-Ordering/Tree-RCU-Memory-Ordering.rst
@@ -21,7 +21,7 @@ Any code that happens after the end of a given RCU grace period is guaranteed
to see the effects of all accesses prior to the beginning of that grace
period that are within RCU read-side critical sections.
Similarly, any code that happens before the beginning of a given RCU grace
-period is guaranteed to see the effects of all accesses following the end
+period is guaranteed to not see the effects of all accesses following the end
of that grace period that are within RCU read-side critical sections.
Note well that RCU-sched read-side critical sections include any region
--
2.31.1.189.g2e36527f23
next prev parent reply other threads:[~2021-05-11 22:44 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-11 22:44 [PATCH tip/core/rcu 0/3] Documentation updates for v5.14 Paul E. McKenney
2021-05-11 22:44 ` Paul E. McKenney [this message]
2021-05-11 22:44 ` [PATCH tip/core/rcu 2/3] doc: Fix diagram references in memory-ordering document Paul E. McKenney
2021-05-11 22:44 ` [PATCH tip/core/rcu 3/3] tools/rcu: Add drgn script to dump number of RCU callbacks Paul E. McKenney
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