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From: "Paul E. McKenney" <paulmck@kernel.org>
To: rcu@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, kernel-team@fb.com,
	mingo@kernel.org, jiangshanlai@gmail.com,
	akpm@linux-foundation.org, mathieu.desnoyers@efficios.com,
	josh@joshtriplett.org, tglx@linutronix.de, peterz@infradead.org,
	rostedt@goodmis.org, dhowells@redhat.com, edumazet@google.com,
	fweisbec@gmail.com, oleg@redhat.com, joel@joelfernandes.org,
	"Paul E. McKenney" <paulmck@kernel.org>
Subject: [PATCH rcu 2/5] scftorture: Shut down if nonsensical arguments given
Date: Wed, 15 Sep 2021 16:41:38 -0700	[thread overview]
Message-ID: <20210915234141.3907301-2-paulmck@kernel.org> (raw)
In-Reply-To: <20210915234117.GA3907188@paulmck-ThinkPad-P17-Gen-1>

If (say) a 10-hour scftorture run is started, but the module parameters
are so nonsensical that the run doesn't even start, then scftorture will
wait the full ten hours when run built into a guest OS.  This commit
therefore shuts down the system in this case so that the error is reported
immediately instead of ten hours hence.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
 kernel/scftorture.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/kernel/scftorture.c b/kernel/scftorture.c
index bc3f8e26345c..31b458b3b113 100644
--- a/kernel/scftorture.c
+++ b/kernel/scftorture.c
@@ -651,6 +651,10 @@ static int __init scf_torture_init(void)
+	if (shutdown_secs) {
+		kernel_power_off();
+	}
 	return firsterr;

  parent reply	other threads:[~2021-09-15 23:41 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-15 23:41 [PATCH rcu 0/5] smp_call_function() torture-test updates for v5.16 Paul E. McKenney
2021-09-15 23:41 ` [PATCH rcu 1/5] scftorture: Allow zero weight to exclude an smp_call_function*() category Paul E. McKenney
2021-09-15 23:41 ` Paul E. McKenney [this message]
2021-09-15 23:41 ` [PATCH rcu 3/5] scftorture: Account for weight_resched when checking for all zeroes Paul E. McKenney
2021-09-15 23:41 ` [PATCH rcu 4/5] scftorture: Count reschedule IPIs Paul E. McKenney
2021-09-15 23:41 ` [PATCH rcu 5/5] scftorture: Warn on individual scf_torture_init() error conditions Paul E. McKenney

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