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Re: [Qemu-devel] [RFC for-2.7] block: keep AioContext pointer in BlockBa
From: |
Max Reitz |
Subject: |
Re: [Qemu-devel] [RFC for-2.7] block: keep AioContext pointer in BlockBackend |
Date: |
Tue, 17 May 2016 13:14:40 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.0 |
On 17.05.2016 13:07, Paolo Bonzini wrote:
>
>
> On 17/05/2016 12:52, Max Reitz wrote:
>> A trivial way to do this would be to query the BDS's AIO context in
>> blk_get_aio_context() and update the BB's context if they don't match.
>> The more correct way would probably be to make bdrv_attach_aio_context()
>> update its BB's (or BBs', in the future) AIO context.
>
> That could be another BdrvChild member, couldn't it?
I think it would rather require a new function pointer in BdrvChildRole
(after Kevin's series, that is). As a side effect, that would allow us
to propagate the context even up the BDS tree, which we currently do not.
Max
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