linux-kernel - [PATCH tip/core/rcu 12/14] Documentation/litmus-tests: Cite an RCU litmus test

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Message-Id: <20200623005231.27712-12-paulmck@kernel.org>
Date:   Mon, 22 Jun 2020 17:52:29 -0700
From:   paulmck@...nel.org
To:     linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
        kernel-team@...com, mingo@...nel.org
Cc:     stern@...land.harvard.edu, parri.andrea@...il.com, will@...nel.org,
        peterz@...radead.org, boqun.feng@...il.com, npiggin@...il.com,
        dhowells@...hat.com, j.alglave@....ac.uk, luc.maranget@...ia.fr,
        akiyks@...il.com,
        "Joel Fernandes (Google)" <joel@...lfernandes.org>,
        "Paul E . McKenney" <paulmck@...nel.org>
Subject: [PATCH tip/core/rcu 12/14] Documentation/litmus-tests: Cite an RCU litmus test

From: "Joel Fernandes (Google)" <joel@...lfernandes.org>

This commit cites a pertinent RCU-related litmus test.

Co-developed-by: Joel Fernandes (Google) <joel@...lfernandes.org>
Co-developed-by: Akira Yokosawa <akiyks@...il.com>
[Alan: grammar nit]
[ paulmck: Update commit log and title per Akira feedback. ]
Suggested-by: Alan Stern <stern@...land.harvard.edu>
Signed-off-by: Joel Fernandes (Google) <joel@...lfernandes.org>
Signed-off-by: Akira Yokosawa <akiyks@...il.com>
Signed-off-by: Paul E. McKenney <paulmck@...nel.org>
---
 Documentation/litmus-tests/README | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/litmus-tests/README b/Documentation/litmus-tests/README
index ac0b270..b79e640 100644
--- a/Documentation/litmus-tests/README
+++ b/Documentation/litmus-tests/README
@@ -24,6 +24,10 @@ Atomic-RMW-ops-are-atomic-WRT-atomic_set.litmus
 RCU (/rcu directory)
 --------------------
 
+MP+onceassign+derefonce.litmus (under tools/memory-model/litmus-tests/)
+    Demonstrates the use of rcu_assign_pointer() and rcu_dereference() to
+    ensure that an RCU reader will not see pre-initialization garbage.
+
 RCU+sync+read.litmus
 RCU+sync+free.litmus
     Both the above litmus tests demonstrate the RCU grace period guarantee
-- 
2.9.5