Re: [PATCH v34 0/4] Virtio-balloon: support free page reporting

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>> And looking at all the discussions and problems that already happened
>> during the development of this series, I think we should rather look
>> into how clean free page hinting might solve the same problem.
> 
> I'm not sure I follow the logic. We found that neat tricks
> especially re-using the max order free page for reporting.

Let me rephrase: history of this series showed that this is some really
complicated stuff. I am asking if this complexity is actually necessary.

No question that we had a very valuable outcome so far (that especially
is also relevant for other projects like Nitesh's proposal - talking
about virtio requests and locking).

> 
>> If it can't be solved using free page hinting, fair enough.
> 
> I suspect Nitesh will need to find a way not to have mm code
> call out to random drivers or subsystems before that code
> is acceptable.
> 
> 


-- 

Thanks,

David / dhildenb
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