From 11a147013e39ff4cb031395cb78a9d307c4799cd Mon Sep 17 00:00:00 2001
From: Josh Triplett <josht@us.ibm.com>
Date: Wed, 4 Oct 2006 02:17:16 -0700
Subject: [PATCH] [PATCH] rcu: add rcu_bh_sync torture type to rcutorture
Use the newly-generic synchronous deferred free function to implement torture
testing for rcu_bh using synchronize_rcu_bh rather than the asynchronous
call_rcu_bh.
Signed-off-by: Josh Triplett <josh@freedesktop.org>
Acked-by: Paul E. McKenney <paulmck@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
Documentation/RCU/torture.txt | 5 +++--
kernel/rcutorture.c | 16 +++++++++++++++-
2 files changed, 18 insertions(+), 3 deletions(-)
diff --git a/Documentation/RCU/torture.txt b/Documentation/RCU/torture.txt
index 6714b5361158..cc4b1efe5ea8 100644
--- a/Documentation/RCU/torture.txt
+++ b/Documentation/RCU/torture.txt
@@ -55,8 +55,9 @@ test_no_idle_hz Whether or not to test the ability of RCU to operate in
torture_type The type of RCU to test: "rcu" for the rcu_read_lock() API,
"rcu_sync" for rcu_read_lock() with synchronous reclamation,
- "rcu_bh" for the rcu_read_lock_bh() API, and "srcu" for the
- "srcu_read_lock()" API.
+ "rcu_bh" for the rcu_read_lock_bh() API, "rcu_bh_sync" for
+ rcu_read_lock_bh() with synchronous reclamation, and "srcu"
+ for the "srcu_read_lock()" API.
verbose Enable debug printk()s. Default is disabled.
diff --git a/kernel/rcutorture.c b/kernel/rcutorture.c
index 1c329df60bcc..0f0ff1556b5d 100644
--- a/kernel/rcutorture.c
+++ b/kernel/rcutorture.c
@@ -370,6 +370,19 @@ static struct rcu_torture_ops rcu_bh_ops = {
.name = "rcu_bh"
};
+static struct rcu_torture_ops rcu_bh_sync_ops = {
+ .init = rcu_sync_torture_init,
+ .cleanup = NULL,
+ .readlock = rcu_bh_torture_read_lock,
+ .readdelay = rcu_read_delay, /* just reuse rcu's version. */
+ .readunlock = rcu_bh_torture_read_unlock,
+ .completed = rcu_bh_torture_completed,
+ .deferredfree = rcu_sync_torture_deferred_free,
+ .sync = rcu_bh_torture_synchronize,
+ .stats = NULL,
+ .name = "rcu_bh_sync"
+};
+
/*
* Definitions for srcu torture testing.
*/
@@ -452,7 +465,8 @@ static struct rcu_torture_ops srcu_ops = {
};
static struct rcu_torture_ops *torture_ops[] =
- { &rcu_ops, &rcu_sync_ops, &rcu_bh_ops, &srcu_ops, NULL };
+ { &rcu_ops, &rcu_sync_ops, &rcu_bh_ops, &rcu_bh_sync_ops, &srcu_ops,
+ NULL };
/*
* RCU torture writer kthread. Repeatedly substitutes a new structure
--
GitLab