AcoSail/kernel_optimize_test
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KVM: do not call hardware_disable() on CPU_UP_CANCELED

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When CPU_UP_CANCELED, hardware_enable() has not been called at the CPU
which is going up because raw_notifier_call_chain(CPU_ONLINE)
has not been called for this cpu.

Drop the handling for CPU_UP_CANCELED.

Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Lai Jiangshan 2010-04-17 17:00:19 +08:00 committed by Avi Kivity
parent 87bc3bf972
commit 66cbff59a1
1 changed files with 0 additions and 5 deletions
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5
virt/kvm/kvm_main.c
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@ -1931,11 +1931,6 @@ static int kvm_cpu_hotplug(struct notifier_block *notifier, unsigned long val,
cpu);
hardware_disable(NULL);
break;
case CPU_UP_CANCELED:
printk(KERN_INFO "kvm: disabling virtualization on CPU%d\n",
cpu);
smp_call_function_single(cpu, hardware_disable, NULL, 1);
break;
case CPU_ONLINE:
printk(KERN_INFO "kvm: enabling virtualization on CPU%d\n",
cpu);