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rcutorture: Add a test for synchronize_rcu_mult()

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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@kernel.org>
This commit is contained in:
Paul E. McKenney 2020-03-06 14:00:46 -08:00
parent b3d73156b0
commit 9cf8fc6fab
1 changed files with 7 additions and 2 deletions
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9
kernel/rcu/rcutorture.c
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@ -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,