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Date: Fri, 21 Oct 2016 22:44:37 +0300
From: "Michael S. Tsirkin" <mst@redhat.com>
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References: <1477031080-12616-1-git-send-email-liang.z.li@intel.com>
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Subject: Re: [Qemu-devel] [RESEND PATCH v3 kernel 0/7] Extend virtio-balloon
 for fast (de)inflating & fast live migration
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To: Dave Hansen <dave.hansen@intel.com>
Cc: Liang Li <liang.z.li@intel.com>, linux-kernel@vger.kernel.org, virtualization@lists.linux-foundation.org, linux-mm@kvack.org, virtio-dev@lists.oasis-open.org, kvm@vger.kernel.org, qemu-devel@nongnu.org, quintela@redhat.com, dgilbert@redhat.com, pbonzini@redhat.com, cornelia.huck@de.ibm.com, amit.shah@redhat.com

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.