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Subject: RE: [RESEND PATCH v3 kernel 0/7] Extend virtio-balloon for fast (de)inflating & fast live migration

> On Fri, Oct 21, 2016 at 10:25:21AM -0700, Dave Hansen wrote:
> > On 10/20/2016 11:24 PM, Liang Li wrote:
> > > Dave Hansen suggested a new scheme to encode the data structure,
> > > because of additional complexity, it's not implemented in v3.
> >
> > So, what do you want done with this patch set?  Do you want it applied
> > as-is so that we can introduce a new host/guest ABI that we must
> > support until the end of time?  Then, we go back in a year or two and
> > add the newer format that addresses the deficiencies that this ABI has
> > with a third version?
> >
> Exactly my questions.

Hi Dave & Michael,

In the V2, both of you thought that the memory I allocated for the bitmap is too large, and gave some
 suggestions about the solution, so I changed the implementation and used  scattered pages for the bitmap
instead of a large physical continued memory. I didn't get the comments about the changes, so I am not 
sure whether that is OK or not, that's the why I resend the V3, I just want your opinions about that part. 

I will implement the new schema as Dave suggested in V4. Before that, could you take a look at this version and
give some comments? 


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