[PATCH 2/3] Revert "Documentation: LKMM: Move MP+onceassign+derefonce to new litmus-tests/rcu/"
From: Akira Yokosawa <akiyks@gmail.com>
Date: 2020-05-10 07:24:57
Also in:
lkml
Subsystem:
documentation, linux kernel memory consistency model (lkmm), the rest · Maintainers:
Jonathan Corbet, Alan Stern, Andrea Parri, Will Deacon, Peter Zijlstra, Boqun Feng, Nicholas Piggin, David Howells, Jade Alglave, Luc Maranget, "Paul E. McKenney", Linus Torvalds
From 898051fee51913f5b9bd01cab98beb8944ec50b2 Mon Sep 17 00:00:00 2001
From: Akira Yokosawa <akiyks@gmail.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@gmail.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