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Date: Wed, 25 Feb 2015 16:18:15 +0800
From: Fam Zheng <famz@redhat.com>
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Subject: Re: [Qemu-devel] [RFC PATCH 01/14] docs: block replication's
 description
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To: Wen Congyang <wency@cn.fujitsu.com>
Cc: Kevin Wolf <kwolf@redhat.com>, Lai Jiangshan <laijs@cn.fujitsu.com>, Jiang Yunhong <yunhong.jiang@intel.com>, Dong Eddie <eddie.dong@intel.com>, "Dr. David Alan Gilbert" <dgilbert@redhat.com>, qemu devel <qemu-devel@nongnu.org>, Gonglei <arei.gonglei@huawei.com>, Stefan Hajnoczi <stefanha@redhat.com>, Paolo Bonzini <pbonzini@redhat.com>, Yang Hongyang <yanghy@cn.fujitsu.com>, jsnow@redhat.com, zhanghailiang <zhang.zhanghailiang@huawei.com>

On Wed, 02/25 16:11, Wen Congyang wrote:
> > 
> >                {virtio-blk dev 'foo'}
> >                          |
> >                          |
> >                          |
> >     [base] <- [mid] <- (foo)
> 
> foo's backing is mid, and mid's backing is base?

Yes.

Fam