rcu: Add rcutorture tests for srcu_read_lock_raw()

This commit adds simple rcutorture tests for srcu_read_lock_raw() and
srcu_read_unlock_raw().  It does not test doing srcu_read_lock_raw()
in an exception handler and releasing it in the corresponding process
context.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>

diff --git a/kernel/rcutorture.c b/kernel/rcutorture.c
index 186ead9fa34883b930efbf69e672881bcacd99c2..88f17b8a3b1dac38abbdb42c6916bd52cea5f2b1 100644 (file)
--- a/kernel/rcutorture.c
+++ b/kernel/rcutorture.c
@@ -632,6 +632,30 @@ static struct rcu_torture_ops srcu_ops = {
        .name           = "srcu"
 };
 
+static int srcu_torture_read_lock_raw(void) __acquires(&srcu_ctl)
+{
+       return srcu_read_lock_raw(&srcu_ctl);
+}
+
+static void srcu_torture_read_unlock_raw(int idx) __releases(&srcu_ctl)
+{
+       srcu_read_unlock_raw(&srcu_ctl, idx);
+}
+
+static struct rcu_torture_ops srcu_raw_ops = {
+       .init           = srcu_torture_init,
+       .cleanup        = srcu_torture_cleanup,
+       .readlock       = srcu_torture_read_lock_raw,
+       .read_delay     = srcu_read_delay,
+       .readunlock     = srcu_torture_read_unlock_raw,
+       .completed      = srcu_torture_completed,
+       .deferred_free  = rcu_sync_torture_deferred_free,
+       .sync           = srcu_torture_synchronize,
+       .cb_barrier     = NULL,
+       .stats          = srcu_torture_stats,
+       .name           = "srcu_raw"
+};
+
 static void srcu_torture_synchronize_expedited(void)
 {
        synchronize_srcu_expedited(&srcu_ctl);
@@ -1591,7 +1615,7 @@ rcu_torture_init(void)
        static struct rcu_torture_ops *torture_ops[] =
                { &rcu_ops, &rcu_sync_ops, &rcu_expedited_ops,
                  &rcu_bh_ops, &rcu_bh_sync_ops, &rcu_bh_expedited_ops,
-                 &srcu_ops, &srcu_expedited_ops,
+                 &srcu_ops, &srcu_raw_ops, &srcu_expedited_ops,
                  &sched_ops, &sched_sync_ops, &sched_expedited_ops, };
 
        mutex_lock(&fullstop_mutex);