Re: [Qemu-devel] [PATCH v2 0/3] Make thread pool implementation modular

[Stefan Hajnoczi]

On Mon, Nov 04, 2013 at 11:28:41AM +0100, Matthias Brugger wrote:
> v2:
>  - fix issues found by checkpatch.pl
>  - change the descritpion of patch 3
> 
> This patch series makes the thread pool implementation modular.
> This allows each drive to use a special implementation.
> The patch series prepares qemu to be able to include thread pools different to
> the one actually implemented. It will allow to implement approaches like
> paravirtualized block requests [1].
> 
> [1] 
> http://www.linux-kvm.org/wiki/images/5/53/2012-forum-Brugger-lightningtalk.pdf

-drive aio=threads|native already distinguishes between different AIO
implementations.  IMO -drive aio= is the logical interface if you want
to add a new AIO mechanism.

I'd also like to see the thread pool implementation you wish to add
before we add a layer of indirection which has no users yet.