From fe5ed91ddce85a0ed0e4f92c10b099873ef62167 Mon Sep 17 00:00:00 2001 From: Hidetoshi Seto Date: Thu, 3 Dec 2009 11:33:08 +0900 Subject: [PATCH] x86, mce: don't restart timer if disabled 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 Cc: Andi Kleen Cc: Huang Ying Cc: Jan Beulich Cc: Signed-off-by: H. Peter Anvin --- arch/x86/kernel/cpu/mcheck/mce.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c index 721a77c..4825a3d 100644 --- a/arch/x86/kernel/cpu/mcheck/mce.c +++ b/arch/x86/kernel/cpu/mcheck/mce.c @@ -1991,9 +1991,11 @@ 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: -- 2.7.4