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Subject: Re: [Qemu-devel] [PATCH kernel v5 0/5] Extend virtio-balloon for fast
 (de)inflating & fast live migration
To: "Li, Liang Z" <liang.z.li@intel.com>,
        Andrea Arcangeli <aarcange@redhat.com>
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From: Dave Hansen <dave.hansen@intel.com>
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On 12/08/2016 08:45 PM, Li, Liang Z wrote:
> What's the conclusion of your discussion? It seems you want some
> statistic before deciding whether to  ripping the bitmap from the
> ABI, am I right?

I think Andrea and David feel pretty strongly that we should remove the
bitmap, unless we have some data to support keeping it.  I don't feel as
strongly about it, but I think their critique of it is pretty valid.  I
think the consensus is that the bitmap needs to go.

The only real question IMNHO is whether we should do a power-of-2 or a
length.  But, if we have 12 bits, then the argument for doing length is
pretty strong.  We don't need anywhere near 12 bits if doing power-of-2.