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From: "Uladzislau Rezki (Sony)" <urezki@gmail.com>
To: "Paul E . McKenney" <paulmck@kernel.org>
Cc: Frederic Weisbecker <frederic@kernel.org>,
	RCU <rcu@vger.kernel.org>, LKML <linux-kernel@vger.kernel.org>,
	Neeraj upadhyay <Neeraj.Upadhyay@amd.com>,
	Boqun Feng <boqun.feng@gmail.com>,
	Joel Fernandes <joel@joelfernandes.org>,
	Uladzislau Rezki <urezki@gmail.com>,
	Oleksiy Avramchenko <oleksiy.avramchenko@sony.com>
Subject: [PATCH 2/2] rcuscale: Remove redundant WARN_ON_ONCE() splat
Date: Thu, 24 Oct 2024 18:45:58 +0200	[thread overview]
Message-ID: <20241024164558.715296-2-urezki@gmail.com> (raw)
In-Reply-To: <20241024164558.715296-1-urezki@gmail.com>

There are two places where WARN_ON_ONCE() is called two times
in the error paths. One which is encapsulated into if() condition
and another one, which is unnecessary, is placed in the brackets.

Remove an extra WARN_ON_ONCE() splat which is in brackets.

Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
---
 kernel/rcu/rcuscale.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/kernel/rcu/rcuscale.c b/kernel/rcu/rcuscale.c
index de7d511e6be4..1d8bb603c289 100644
--- a/kernel/rcu/rcuscale.c
+++ b/kernel/rcu/rcuscale.c
@@ -889,13 +889,11 @@ kfree_scale_init(void)
 
 		if (WARN_ON_ONCE(jiffies_at_lazy_cb - jif_start < 2 * HZ)) {
 			pr_alert("ERROR: call_rcu() CBs are not being lazy as expected!\n");
-			WARN_ON_ONCE(1);
 			goto unwind;
 		}
 
 		if (WARN_ON_ONCE(jiffies_at_lazy_cb - jif_start > 3 * HZ)) {
 			pr_alert("ERROR: call_rcu() CBs are being too lazy!\n");
-			WARN_ON_ONCE(1);
 			goto unwind;
 		}
 	}
-- 
2.39.5


  reply	other threads:[~2024-10-24 16:46 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-10-24 16:45 [PATCH 1/2] rcuscale: Do a proper cleanup if kfree_scale_init() fails Uladzislau Rezki (Sony)
2024-10-24 16:45 ` Uladzislau Rezki (Sony) [this message]
2024-10-24 20:28   ` [PATCH 2/2] rcuscale: Remove redundant WARN_ON_ONCE() splat Paul E. McKenney
2024-10-25  9:33     ` Uladzislau Rezki
2024-10-28 16:07     ` Frederic Weisbecker

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