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Re: [Qemu-devel] [RFC PATCH 6/7] virtio-blk: Don't handle output when th

From: Paolo Bonzini
Subject: Re: [Qemu-devel] [RFC PATCH 6/7] virtio-blk: Don't handle output when there is "device IO" op blocker
Date: Wed, 06 May 2015 16:18:22 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.5.0

On 06/05/2015 14:20, Fam Zheng wrote:
>> > 
>> > Does non-dataplane need to do anything, since it uses iohandlers rather
>> > than aio_set_event_notifier_handler?
> I guess it's not for this specific bug. See this as an attempt on a general
> purpose "pause" mechanism to the device in investment for the future, for
> example, bdrv_aio_drain. ;-)
> I can drop it in v2 if you think the idea is not very helpful.

It's slightly more complicated but I think it's worth the extra coverage
testing that this provides.


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