KVM: arm/arm64: Remove redundant preemptible checks
The __this_cpu_read() and __this_cpu_write() functions already implement checks for the required preemption levels when using CONFIG_DEBUG_PREEMPT which gives you nice error messages and such. Therefore there is no need to explicitly check this using a BUG_ON() in the code (which we don't do for other uses of per cpu variables either). Acked-by: Marc Zyngier <marc.zyngier@arm.com> Reviewed-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
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@ -71,7 +71,6 @@ static DEFINE_PER_CPU(unsigned char, kvm_arm_hardware_enabled);
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static void kvm_arm_set_running_vcpu(struct kvm_vcpu *vcpu)
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{
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BUG_ON(preemptible());
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__this_cpu_write(kvm_arm_running_vcpu, vcpu);
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}
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@ -81,7 +80,6 @@ static void kvm_arm_set_running_vcpu(struct kvm_vcpu *vcpu)
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*/
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struct kvm_vcpu *kvm_arm_get_running_vcpu(void)
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{
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BUG_ON(preemptible());
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return __this_cpu_read(kvm_arm_running_vcpu);
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}
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