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Re: [Qemu-block] [PATCH v10 08/10] Implement new driver for block replic
From: |
Wen Congyang |
Subject: |
Re: [Qemu-block] [PATCH v10 08/10] Implement new driver for block replication |
Date: |
Tue, 13 Oct 2015 17:08:17 +0800 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.2.0 |
On 10/13/2015 12:27 AM, Stefan Hajnoczi wrote:
> On Fri, Sep 25, 2015 at 02:17:36PM +0800, Wen Congyang wrote:
>> + /* start backup job now */
>> + bdrv_op_unblock(s->hidden_disk, BLOCK_OP_TYPE_BACKUP_TARGET,
>> + s->active_disk->backing_blocker);
>> + bdrv_op_unblock(s->secondary_disk, BLOCK_OP_TYPE_BACKUP_SOURCE,
>> + s->hidden_disk->backing_blocker);
>
> Why is it safe to unblock these operations?
>
> Why do they have to be blocked for non-replication users?
hidden_disk and secondary disk are opened as backing file, so it is blocked for
non-replication users.
What can I do if I don't unblock it and want to do backup?
Thanks
Wen Congyang
>
> Stefan
> .
>
- Re: [Qemu-block] [PATCH v10 08/10] Implement new driver for block replication, Stefan Hajnoczi, 2015/10/12
- Re: [Qemu-block] [PATCH v10 08/10] Implement new driver for block replication,
Wen Congyang <=
- Re: [Qemu-block] [PATCH v10 08/10] Implement new driver for block replication, Stefan Hajnoczi, 2015/10/14
- Re: [Qemu-block] [PATCH v10 08/10] Implement new driver for block replication, Wen Congyang, 2015/10/14
- Re: [Qemu-block] [PATCH v10 08/10] Implement new driver for block replication, Stefan Hajnoczi, 2015/10/15
- Re: [Qemu-block] [PATCH v10 08/10] Implement new driver for block replication, Wen Congyang, 2015/10/15
- Re: [Qemu-block] [PATCH v10 08/10] Implement new driver for block replication, Wen Congyang, 2015/10/16
- Re: [Qemu-block] [PATCH v10 08/10] Implement new driver for block replication, Stefan Hajnoczi, 2015/10/16
- Re: [Qemu-block] [PATCH v10 08/10] Implement new driver for block replication, Wen Congyang, 2015/10/26
- Re: [Qemu-block] [PATCH v10 08/10] Implement new driver for block replication, Stefan Hajnoczi, 2015/10/27