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>

1 files changed, 25 insertions, 1 deletions

diff --git a/kernel/rcutorture.c b/kernel/rcutorture.c
index 186ead9fa348..88f17b8a3b1d 100644
--- 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);