linux-kernel - [PATCH 2/3] Revert "Documentation: LKMM: Move MP+onceassign+derefonce to new litmus-tests/rcu/"

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Message-ID: <f9f6daba-c12d-d22b-414e-276961999fdf@gmail.com>
Date:   Sun, 10 May 2020 16:24:51 +0900
From:   Akira Yokosawa <akiyks@...il.com>
To:     "Joel Fernandes (Google)" <joel@...lfernandes.org>,
        Boqun Feng <boqun.feng@...il.com>,
        "Paul E. McKenney" <paulmck@...nel.org>
Cc:     linux-kernel@...r.kernel.org, vpillai@...italocean.com,
        Jonathan Corbet <corbet@....net>,
        Alan Stern <stern@...land.harvard.edu>,
        Andrea Parri <parri.andrea@...il.com>,
        Will Deacon <will@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Nicholas Piggin <npiggin@...il.com>,
        David Howells <dhowells@...hat.com>,
        Jade Alglave <j.alglave@....ac.uk>,
        Luc Maranget <luc.maranget@...ia.fr>,
        Daniel Lustig <dlustig@...dia.com>, linux-doc@...r.kernel.org,
        Akira Yokosawa <akiyks@...il.com>
Subject: [PATCH 2/3] Revert "Documentation: LKMM: Move MP+onceassign+derefonce
 to new litmus-tests/rcu/"

>From 898051fee51913f5b9bd01cab98beb8944ec50b2 Mon Sep 17 00:00:00 2001
From: Akira Yokosawa <akiyks@...il.com>
Date: Sun, 10 May 2020 13:43:34 +0900
Subject: [PATCH 2/3] Revert "Documentation: LKMM: Move MP+onceassign+derefonce to new litmus-tests/rcu/"

This reverts commit a5cca3485d9206a9dbbc6f47d2a537e69b53cd82.

MP+onceassign+derefonce.litmus is called out from
tools/memory-model/Documentation/recipes.txt.
It should be in the same directory as the other representative tests
to help readers inspect it.

Signed-off-by: Akira Yokosawa <akiyks@...il.com>
---
 Documentation/litmus-tests/README                              | 3 ---
 .../memory-model/litmus-tests}/MP+onceassign+derefonce.litmus  | 0
 tools/memory-model/litmus-tests/README                         | 3 +++
 3 files changed, 3 insertions(+), 3 deletions(-)
 rename {Documentation/litmus-tests/rcu => tools/memory-model/litmus-tests}/MP+onceassign+derefonce.litmus (100%)

diff --git a/Documentation/litmus-tests/README b/Documentation/litmus-tests/README
index 79d187f75679..c4307ea9f996 100644
--- a/Documentation/litmus-tests/README
+++ b/Documentation/litmus-tests/README
@@ -4,9 +4,6 @@ LITMUS TESTS
 
 RCU (/rcu directory)
 --------------------
-MP+onceassign+derefonce.litmus
-    Demonstrates that 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
diff --git a/Documentation/litmus-tests/rcu/MP+onceassign+derefonce.litmus b/tools/memory-model/litmus-tests/MP+onceassign+derefonce.litmus
similarity index 100%
rename from Documentation/litmus-tests/rcu/MP+onceassign+derefonce.litmus
rename to tools/memory-model/litmus-tests/MP+onceassign+derefonce.litmus
diff --git a/tools/memory-model/litmus-tests/README b/tools/memory-model/litmus-tests/README
index 79e1b1ed4929..681f9067fa9e 100644
--- a/tools/memory-model/litmus-tests/README
+++ b/tools/memory-model/litmus-tests/README
@@ -63,6 +63,9 @@ LB+poonceonces.litmus
 	As above, but with store-release replaced with WRITE_ONCE()
 	and load-acquire replaced with READ_ONCE().
 
+MP+onceassign+derefonce.litmus
+	As below, but with rcu_assign_pointer() and an rcu_dereference().
+
 MP+polockmbonce+poacquiresilsil.litmus
 	Protect the access with a lock and an smp_mb__after_spinlock()
 	in one process, and use an acquire load followed by a pair of
-- 
2.17.1