From a9b1649917f0d2058022eda06082f9d299a06354 Mon Sep 17 00:00:00 2001 From: Martin Schwidefsky Date: Wed, 1 Oct 2014 10:44:40 +0200 Subject: [PATCH] s390/vtime: do not reset idle data on CPU hotplug The sysfs attributes /sys/devices/system/cpu/cpu0/idle_count and /sys/devices/system/cpu/cpu0/idle_time_us are reset to zero every time a CPU is set online. The idle and iowait fields in /proc/stat corresponding to idle_time_us are not reset. To make things consistent do not reset the data for the sys attributes. Signed-off-by: Martin Schwidefsky --- arch/s390/kernel/processor.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/arch/s390/kernel/processor.c b/arch/s390/kernel/processor.c index 24612029f450..32587cc76306 100644 --- a/arch/s390/kernel/processor.c +++ b/arch/s390/kernel/processor.c @@ -23,7 +23,6 @@ static DEFINE_PER_CPU(struct cpuid, cpu_id); */ void cpu_init(void) { - struct s390_idle_data *idle = &__get_cpu_var(s390_idle); struct cpuid *id = &__get_cpu_var(cpu_id); get_cpu_id(id); @@ -31,7 +30,6 @@ void cpu_init(void) current->active_mm = &init_mm; BUG_ON(current->mm); enter_lazy_tlb(&init_mm, current); - memset(idle, 0, sizeof(*idle)); } /*