lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Date:	Tue, 27 Oct 2009 16:00:11 +0800
From:	Lai Jiangshan <>
To:	"Paul E. McKenney" <>,
	Ingo Molnar <>,
	Thomas Gleixner <>,
	LKML <>
Subject: [PATCH] sofirq: make rcu_irq_enter()/rcu_irq_exit() called in pairs

irq_enter() calls rcu_irq_enter() unconditionally,
the same as irq_exit() calls rcu_irq_exit().

It does not change the binary because rcu_irq_enter()
is dummy when !CONFIG_NO_HZ.

It's just a cleanup.

Signed-off-by: Lai Jiangshan <>
diff --git a/kernel/softirq.c b/kernel/softirq.c
index f8749e5..21939d9 100644
--- a/kernel/softirq.c
+++ b/kernel/softirq.c
@@ -302,9 +302,9 @@ void irq_exit(void)
 	if (!in_interrupt() && local_softirq_pending())
+	rcu_irq_exit();
 #ifdef CONFIG_NO_HZ
 	/* Make sure that timer wheel updates are propagated */
-	rcu_irq_exit();
 	if (idle_cpu(smp_processor_id()) && !in_interrupt() && !need_resched())

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

Powered by blists - more mailing lists