Re: [PATCH v13 6/8] x86/arch_prctl: Add ARCH_[GET|SET]_CPUID

From: Kyle Huey
Date: Mon Nov 28 2016 - 11:14:08 EST


On Mon, Nov 28, 2016 at 6:06 AM, Thomas Gleixner <tglx@xxxxxxxxxxxxx> wrote:
> On Sun, 27 Nov 2016, Kyle Huey wrote:
>> +DEFINE_PER_CPU(u64, msr_misc_features_shadow);
>> +
>> +static void set_cpuid_faulting(bool on)
>> +{
>> + u64 msrval;
>> +
>> + DEBUG_LOCKS_WARN_ON(!irqs_disabled());
>
> The arch_prctl code path does not have interrupts disabled and there is no
> reason why it should have.

Yes, indeed. Removed.

- Kyle