Re: [Qemu-devel] [RFC for-2.7] block: keep AioContext pointer in BlockBackend

[Max Reitz]

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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