quoted

Why would your suggestion still be applicable?

Your point for now is "I might not want to have page hinting enabled due to
the overhead, but still a live migration speedup". If that overhead actually
exists (we'll have to see) or there might be another reason to disable page
hinting, then we have to decide if that specific setup is worth it merging your
changes.

All the above "if we have", "assume we have" don't sound like a valid argument to me.

Argument? *confused* And that hinders you from answering the question
"Why would your suggestion still be applicable?" ? Well, okay.

So I will answer it by myself: Because somebody would want to disable
page hinting. Maybe there are some people out there.

quoted

I am not (and don't want to be) in the position to make any decisions here :) I
just want to understand if two interfaces for free pages actually make sense.

I responded to Nitesh about the differences, you may want to check with him about this.
I would suggest you to send out your patches to LKML to get a discussion with the mm folks.

Indeed, Nitesh is trying to solve the problems we found in the RFC, so
this can take some time.

Best,
Wei

-- 

Thanks,

David / dhildenb