[Xen-devel] [PATCH v2 09/20] xen/biomerge: Don't allow biovec to be merge when Linux is not using 4KB page

Julien Grall julien.grall at citrix.com
Fri Jul 17 07:46:21 PDT 2015


On 17/07/15 15:45, Stefano Stabellini wrote:
> On Fri, 17 Jul 2015, Julien Grall wrote:
>> On 17/07/15 14:20, Stefano Stabellini wrote:
>>> We would have to run some benchmarks, but I think it would still be a
>>> win. We should write an ad-hoc __pfn_to_mfn translation function that
>>> operates on a range of pfns and simply checks whether an entry is
>>> present in that range. It should be just as fast as __pfn_to_mfn. I
>>> would definitely recommend it.
>>
>> I'd like to see a basic support of 64KB support on Xen pushed in Linux
>> upstream before looking to possible improvement in the code. Can we
>> defer this as the follow-up of this series?
> 
> Yes, maybe add a TODO comment in the code. 

Will do.

Regards,

-- 
Julien Grall



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