[PATCH] rcu: add sched torture type to rcutorture

Implement torture testing for the "sched" variant of RCU, which uses
preempt_disable, preempt_enable, and synchronize_sched.

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>

1 files changed, 3 insertions, 2 deletions

diff --git a/Documentation/RCU/torture.txt b/Documentation/RCU/torture.txt
index cc4b1efe5ea8..25a3c3f7d378 100644
--- a/Documentation/RCU/torture.txt
+++ b/Documentation/RCU/torture.txt
@@ -56,8 +56,9 @@ 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, "rcu_bh_sync" for
-                rcu_read_lock_bh() with synchronous reclamation, and "srcu"
-                for the "srcu_read_lock()" API.
+                rcu_read_lock_bh() with synchronous reclamation, "srcu" for
+                the "srcu_read_lock()" API, and "sched" for the use of
+                preempt_disable() together with synchronize_sched().
 
 verbose         Enable debug printk()s.  Default is disabled.