Linux Virtualization - Oct 2016 - [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.

> 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? 

Thanks!
Liang

On Sun, Oct 23, 2016 at 11:29:25AM +0000, Li, Liang Z
wrote:
> > 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? 
> 
> Thanks!
> Liang
Sure, I'll try to review just that part.