The following commit has been merged into the core/rcu branch of tip:
Commit-ID: 9cf8fc6fabd46d7f4729529f88d627ce85c6e970
Gitweb: https://git.kernel.org/tip/9cf8fc6fabd46d7f4729529f88d627ce85c6e970
Author: Paul E. McKenney <paulmck@xxxxxxxxxx>
AuthorDate: Fri, 06 Mar 2020 14:00:46 -08:00
Committer: Paul E. McKenney <paulmck@xxxxxxxxxx>
CommitterDate: Mon, 27 Apr 2020 11:03:51 -07:00
rcutorture: Add a test for synchronize_rcu_mult()
This commit adds a crude test for synchronize_rcu_mult(). This is
currently a smoke test rather than a high-quality stress test.
Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxx>
---
kernel/rcu/rcutorture.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c
index b348cf8..fbb3e62 100644
--- a/kernel/rcu/rcutorture.c
+++ b/kernel/rcu/rcutorture.c
@@ -20,7 +20,7 @@
#include <linux/err.h>
#include <linux/spinlock.h>
#include <linux/smp.h>
-#include <linux/rcupdate.h>
+#include <linux/rcupdate_wait.h>
#include <linux/interrupt.h>
#include <linux/sched/signal.h>
#include <uapi/linux/sched/types.h>
@@ -665,6 +665,11 @@ static void rcu_tasks_torture_deferred_free(struct rcu_torture *p)
call_rcu_tasks(&p->rtort_rcu, rcu_torture_cb);
}
+static void synchronize_rcu_mult_test(void)
+{
+ synchronize_rcu_mult(call_rcu_tasks, call_rcu);
+}
+
static struct rcu_torture_ops tasks_ops = {
.ttype = RCU_TASKS_FLAVOR,
.init = rcu_sync_torture_init,
@@ -674,7 +679,7 @@ static struct rcu_torture_ops tasks_ops = {
.get_gp_seq = rcu_no_completed,
.deferred_free = rcu_tasks_torture_deferred_free,
.sync = synchronize_rcu_tasks,
- .exp_sync = synchronize_rcu_tasks,
+ .exp_sync = synchronize_rcu_mult_test,
.call = call_rcu_tasks,
.cb_barrier = rcu_barrier_tasks,
.fqs = NULL,
|