Re: [PATCH v2 3/6] KVM: introduce kvm_for_each_memslot macro

From: Xiao Guangrong
Date: Sun Nov 20 2011 - 22:33:51 EST


On 11/20/2011 07:21 PM, Avi Kivity wrote:

> On 11/18/2011 11:18 AM, Xiao Guangrong wrote:
>> index bb8728e..10524c0 100644
>> --- a/include/linux/kvm_host.h
>> +++ b/include/linux/kvm_host.h
>> @@ -307,6 +307,10 @@ static inline struct kvm_vcpu *kvm_get_vcpu(struct kvm *kvm, int i)
>> (vcpup = kvm_get_vcpu(kvm, idx)) != NULL; \
>> idx++)
>>
>> +#define kvm_for_each_memslot(slots, memslot, i) \
>> + for (i = 0; i < (slots)->nmemslots && \
>> + ({ memslot = &(slots)->memslots[i]; 1; }); i++)
>> +
>>
>
> Statement expression not needed, you can use the comma operator:
>
> i < (slots)->nmemslots && (memslot = @(slots)->memslots[i], true)
>
> or even
>
> memslot = &(slots)->memslots[i], i < (slots)->nmemslots
>
> or just kill i and make memslot the loop variable.
>


Good, will fix it in the next version, thanks!

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