linux-kernel - Re: [PATCH v6 kernel 0/5] Extend virtio-balloon for fast (de)inflating & fast live migration

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Date:   Thu, 19 Jan 2017 18:24:59 +0100
From:   David Hildenbrand <david@...hat.com>
To:     "Michael S. Tsirkin" <mst@...hat.com>
Cc:     Liang Li <liang.z.li@...el.com>, kvm@...r.kernel.org,
        virtio-dev@...ts.oasis-open.org, qemu-devel@...gnu.org,
        linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        virtualization@...ts.linux-foundation.org, amit.shah@...hat.com,
        dave.hansen@...el.com, cornelia.huck@...ibm.com,
        pbonzini@...hat.com, aarcange@...hat.com, dgilbert@...hat.com,
        quintela@...hat.com
Subject: Re: [PATCH v6 kernel 0/5] Extend virtio-balloon for fast
 (de)inflating & fast live migration


> As long as the interface is similar, it seems to make
> sense for me - why invent a completely new device that
> looks very much like the old one?

The only reason would be that this feature could be used independently
of virtio-balloon. But this would of course only be the case, if
ballooning is strictly not wanted in a configuration, or the current
balloon driver gets replaced by an alternative solution.

I don't have any strong feelings about this, just wanted to double check.

Thanks,

David

> 
> So this boils down to whether the speedup patches are merged.
> 
> 
>> -- 
>>
>> David