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Date: Thu, 21 May 2015 20:44:50 +0800
From: Fam Zheng <famz@redhat.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: Wen Congyang <wency@cn.fujitsu.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 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.


Fam