linux-kernel - [PATCH rcu 09/10] rcu: Update TREE05.boot to test normal synchronize

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Message-ID: <20250305030505.94059-10-boqun.feng@gmail.com>
Date: Tue,  4 Mar 2025 19:05:04 -0800
From: Boqun Feng <boqun.feng@...il.com>
To: rcu@...r.kernel.org
Cc: Petr Mladek <pmladek@...e.com>,	Steven Rostedt <rostedt@...dmis.org>,
	John Ogness <john.ogness@...utronix.de>,
	Sergey Senozhatsky <senozhatsky@...omium.org>,
	"Paul E. McKenney" <paulmck@...nel.org>,
	Frederic Weisbecker <frederic@...nel.org>,
	Neeraj Upadhyay <neeraj.upadhyay@...nel.org>,
	Joel Fernandes <joel@...lfernandes.org>,
	Josh Triplett <josh@...htriplett.org>,	Boqun Feng <boqun.feng@...il.com>,
	Uladzislau Rezki <urezki@...il.com>,
	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
	Lai Jiangshan <jiangshanlai@...il.com>,
	Zqiang <qiang.zhang1211@...il.com>,	Davidlohr Bueso <dave@...olabs.net>,
	Shuah Khan <shuah@...nel.org>,
	Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
	Clark Williams <clrkwllms@...nel.org>,
	Masami Hiramatsu <mhiramat@...nel.org>,	Yuntao Wang <ytcoode@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Rasmus Villemoes <linux@...musvillemoes.dk>,
	Guo Weikang <guoweikang.kernel@...il.com>,	KP Singh <kpsingh@...nel.org>,
	Huang Shijie <shijie@...amperecomputing.com>,
	Raul E Rangel <rrangel@...omium.org>,
	Joel Granados <joel.granados@...nel.org>,
	Anna Schumaker <anna.schumaker@...cle.com>,
	"Martin K. Petersen" <martin.petersen@...cle.com>,
	Thomas Weißschuh <linux@...ssschuh.net>,
	zhangguopeng <zhangguopeng@...inos.cn>,
	Thomas Gleixner <tglx@...utronix.de>,
	"Neeraj Upadhyay (AMD)" <neeraj.iitr10@...il.com>,
	linux-kernel@...r.kernel.org,	linux-kselftest@...r.kernel.org,
	linux-rt-devel@...ts.linux.dev
Subject: [PATCH rcu 09/10] rcu: Update TREE05.boot to test normal synchronize_rcu()

From: "Uladzislau Rezki (Sony)" <urezki@...il.com>

Add extra parameters for rcutorture module. One is the "nfakewriters"
which is set -1. There will be created number of test-kthreads which
correspond to number of CPUs in a test system. Those threads randomly
invoke synchronize_rcu() call.

Apart of that "rcu_normal" is set to 1, because it is specifically for
a normal synchronize_rcu() testing, also a newly added parameter which
is "rcu_normal_wake_from_gp" is set to 1 also. That prevents interaction
with other callbacks in a system.

Reviewed-by: Paul E. McKenney <paulmck@...nel.org>
Signed-off-by: Uladzislau Rezki (Sony) <urezki@...il.com>
Link: https://lore.kernel.org/r/20250227131613.52683-2-urezki@gmail.com
Signed-off-by: Boqun Feng <boqun.feng@...il.com>
---
 tools/testing/selftests/rcutorture/configs/rcu/TREE05.boot | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE05.boot b/tools/testing/selftests/rcutorture/configs/rcu/TREE05.boot
index c419cac233ee..54f5c9053474 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TREE05.boot
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE05.boot
@@ -2,3 +2,9 @@ rcutree.gp_preinit_delay=3
 rcutree.gp_init_delay=3
 rcutree.gp_cleanup_delay=3
 rcupdate.rcu_self_test=1
+
+# This part is for synchronize_rcu() testing
+rcutorture.nfakewriters=-1
+rcutorture.gp_sync=1
+rcupdate.rcu_normal=1
+rcutree.rcu_normal_wake_from_gp=1
-- 
2.48.1