From: "Paul E. McKenney" <paulmck@kernel.org>
To: rcu@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, kernel-team@fb.com,
rostedt@goodmis.org, "Paul E. McKenney" <paulmck@kernel.org>
Subject: [PATCH rcu 8/8] rcutorture: Enable limited callback-flooding tests of SRCU
Date: Fri, 4 Feb 2022 15:53:27 -0800 [thread overview]
Message-ID: <20220204235327.2948-8-paulmck@kernel.org> (raw)
In-Reply-To: <20220204235321.GA2511@paulmck-ThinkPad-P17-Gen-1>
This commit allows up to 50,000 callbacks worth of callback-flooding
tests of SRCU. The goal of this change is to exercise Tree SRCU's
ability to transition from SRCU_SIZE_SMALL to SRCU_SIZE_BIG triggered
by callback-queue-time lock contention.
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
---
kernel/rcu/rcutorture.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c
index 1c8f40b90f70b..b41db719085ef 100644
--- a/kernel/rcu/rcutorture.c
+++ b/kernel/rcu/rcutorture.c
@@ -674,6 +674,7 @@ static struct rcu_torture_ops srcu_ops = {
.call = srcu_torture_call,
.cb_barrier = srcu_torture_barrier,
.stats = srcu_torture_stats,
+ .cbflood_max = 50000,
.irq_capable = 1,
.no_pi_lock = IS_ENABLED(CONFIG_TINY_SRCU),
.name = "srcu"
@@ -708,6 +709,7 @@ static struct rcu_torture_ops srcud_ops = {
.call = srcu_torture_call,
.cb_barrier = srcu_torture_barrier,
.stats = srcu_torture_stats,
+ .cbflood_max = 50000,
.irq_capable = 1,
.no_pi_lock = IS_ENABLED(CONFIG_TINY_SRCU),
.name = "srcud"
--
2.31.1.189.g2e36527f23
prev parent reply other threads:[~2022-02-04 23:53 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-04 23:53 [PATCH rcu 0/8] Torture-test updates for v5.18 Paul E. McKenney
2022-02-04 23:53 ` [PATCH rcu 1/8] rcutorture: Print message before invoking ->cb_barrier() Paul E. McKenney
2022-02-04 23:53 ` [PATCH rcu 2/8] torture: Distinguish kthread stopping and being asked to stop Paul E. McKenney
2022-02-04 23:53 ` [PATCH rcu 3/8] rcutorture: Increase visibility of forward-progress hangs Paul E. McKenney
2022-02-04 23:53 ` [PATCH rcu 4/8] rcutorture: Make rcu_fwd_cb_nodelay be a counter Paul E. McKenney
2022-02-04 23:53 ` [PATCH rcu 5/8] rcutorture: Add end-of-test check to rcu_torture_fwd_prog() loop Paul E. McKenney
2022-02-04 23:53 ` [PATCH rcu 6/8] rcutorture: Fix rcu_fwd_mutex deadlock Paul E. McKenney
2022-02-04 23:53 ` [PATCH rcu 7/8] torture: Wake up kthreads after storing task_struct pointer Paul E. McKenney
2022-02-04 23:53 ` Paul E. McKenney [this message]
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