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Date: Tue, 14 Mar 2017 13:17:20 +0100
From: Kevin Wolf <kwolf@redhat.com>
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References: <1489492012-8002-1-git-send-email-xiecl.fnst@cn.fujitsu.com>
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In-Reply-To: <1489492012-8002-1-git-send-email-xiecl.fnst@cn.fujitsu.com>
Subject: Re: [Qemu-devel] [PATCH V1] replication: clarify permissions
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To: Changlong Xie <xiecl.fnst@cn.fujitsu.com>
Cc: qemu devel <qemu-devel@nongnu.org>, qemu block <qemu-block@nongnu.org>, Stefan Hajnoczi <stefanha@redhat.com>, Fam Zheng <famz@redhat.com>, Max Reitz <mreitz@redhat.com>, Wen Congyang <wencongyang2@huawei.com>, zhanghailiang <zhang.zhanghailiang@huawei.com>, Zhang Chen <zhangchen.fnst@cn.fujitsu.com>

Am 14.03.2017 um 12:46 hat Changlong Xie geschrieben:
> Even if hidden_disk, secondary_disk are backing files, they all need
> write permissions in replication scenario. Otherwise we will encouter
> below exceptions on secondary side during adding nbd server:
> 
> {'execute': 'nbd-server-add', 'arguments': {'device': 'colo-disk', 'writable': true } }
> {"error": {"class": "GenericError", "desc": "Conflicts with use by hidden-qcow2-driver as 'backing', which does not allow 'write' on sec-qcow2-driver-for-nbd"}}
> 
> CC: Zhang Hailiang <zhang.zhanghailiang@huawei.com>
> CC: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
> CC: Wen Congyang <wencongyang2@huawei.com>
> Signed-off-by: Changlong Xie <xiecl.fnst@cn.fujitsu.com>

Thanks, applied to the block branch.

Kevin