From: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
To: linux-kernel@vger.kernel.org
Cc: Jan Beulich <JBeulich@novell.com>,
mingo@elte.hu, tglx@linutronix.de, hpa@zytor.com,
stable@kernel.org
Subject: [PATCH] x86/mce: don't restart timer if disabled
Date: Thu, 03 Dec 2009 11:33:08 +0900 [thread overview]
Message-ID: <4B172364.7090809@jp.fujitsu.com> (raw)
Even it is in error path unlikely taken, add_timer_on() at
CPU_DOWN_FAILED* needs to be skipped if mce_timer is disabled.
Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Cc: <stable@kernel.org>
---
arch/x86/kernel/cpu/mcheck/mce.c | 6 ++++--
1 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c
index a06b4fe..c756e13 100644
--- a/arch/x86/kernel/cpu/mcheck/mce.c
+++ b/arch/x86/kernel/cpu/mcheck/mce.c
@@ -1997,9 +1997,11 @@ mce_cpu_callback(struct notifier_block *nfb, unsigned long action, void *hcpu)
break;
case CPU_DOWN_FAILED:
case CPU_DOWN_FAILED_FROZEN:
- t->expires = round_jiffies(jiffies +
+ if (!mce_ignore_ce && check_interval) {
+ t->expires = round_jiffies(jiffies +
__get_cpu_var(mce_next_interval));
- add_timer_on(t, cpu);
+ add_timer_on(t, cpu);
+ }
smp_call_function_single(cpu, mce_reenable_cpu, &action, 1);
break;
case CPU_POST_DEAD:
--
1.6.5.3
reply other threads:[~2009-12-03 2:33 UTC|newest]
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