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Date: Tue, 16 Mar 2010 06:45:17 -0400
From: Christoph Hellwig <hch@infradead.org>
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Subject: [Qemu-devel] Re: KVM call agenda for Mar 16
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To: Avi Kivity <avi@redhat.com>
Cc: Chris Wright <chrisw@redhat.com>, qemu-devel@nongnu.org, kvm@vger.kernel.org, Juan Quintela <quintela@redhat.com>

On Tue, Mar 16, 2010 at 12:38:02PM +0200, Avi Kivity wrote:
> On 03/16/2010 12:31 PM, Daniel P. Berrange wrote:
>>> Polling loops are an indication that something is wrong.
>>>      
>> Except when people suggest they are the right answer, qcow high
>> watermark ;-P
>>    
>
> I liked Anthony's suggestion of an lvm2 block format driver.  No polling.

I have done some work on linking the new lvm library to qemu to control
snapshotting.  But introducing a whole new block format seems like a lot
of duplication to me.