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Date: Fri, 22 May 2015 14:18:10 +0800
From: Wen Congyang <wency@cn.fujitsu.com>
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Subject: Re: [Qemu-devel] [PATCH v6 01/13] block: Add op blocker type
	"device IO"
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To: Fam Zheng <famz@redhat.com>
Cc: Kevin Wolf <kwolf@redhat.com>, qemu-block@nongnu.org, armbru@redhat.com, jcody@redhat.com, qemu-devel@nongnu.org, mreitz@redhat.com, Stefan Hajnoczi <stefanha@redhat.com>, amit.shah@redhat.com, pbonzini@redhat.com

On 05/21/2015 08:44 PM, Fam Zheng wrote:
> On Thu, 05/21 16:00, Wen Congyang wrote:
>> On 05/21/2015 02:42 PM, Fam Zheng wrote:
>>> It blocks device IO.
>>
>> Does tt only block virtio-blk/scsi? Not all block types?
> 
> It's only necessary for dataplane enabled devices, which are virtio-blk and
> virtio-scsi at the moment. Other types are OK.

Hmm, it is OK for qmp transaction. But I think it is not OK for mirror job.

Thanks
Wen Congyang

> 
> 
> Fam
> .
>