Re: [PATCH V2 1/2] xen/granttable: Support sub-page grants

[annie li]

> I say let's be optimistic :-) Yes, there's more overhead in the failure case, but that's not what we should be optimising for.
>   
> From positive side, it is OK. I agree with you since the failure case does not occurs frequently, the other goodness is the code style can keep identical with gnttab_grant_foreign_access and gnttab_grant_foreign_access_ref. thanks.

Thanks
Annie

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