Re: [PATCH 2/2] KVM: x86: hyperv: optimize sparse VP set processing

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Paolo Bonzini <pbonzini@xxxxxxxxxx> writes:

> On 08/10/2018 19:19, Vitaly Kuznetsov wrote:
>> +	memset(vp_bitmap, 0, (KVM_MAX_VCPUS / 64) * sizeof(*vp_bitmap));
>> +	for_each_set_bit(bank, (unsigned long *)&valid_bank_mask, 64)
>
> This "64" should probably be "KVM_MAX_VCPUS / 64"... and actually both
> should be DIV_ROUND_UP(KVM_MAX_VCPUS, 64), so it's better to introduce
> something like a "#define KVM_HV_MAX_SPARSE_VCPU_SET_BITS".

Nice catch, the first one is actually a bug. 

Will do v2, thanks!

-- 
Vitaly



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