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Re: [Qemu-block] [Qemu-devel] [PATCH 2/4] virtio: Always use aio path to

From: Fam Zheng
Subject: Re: [Qemu-block] [Qemu-devel] [PATCH 2/4] virtio: Always use aio path to set host handler
Date: Fri, 24 Jun 2016 15:25:09 +0800
User-agent: Mutt/1.6.1 (2016-04-27)

On Fri, 06/24 08:39, Paolo Bonzini wrote:
> On 24/06/2016 07:12, Fam Zheng wrote:
> > Apart from the interface difference, the aio version works the same as
> > the non-aio one. The event notifier versus aio fd handler makes no
> > diffeerence, except the former led to an ugly patch in commit
> > ab27c3b5e7, which won't be necessary any more.
> > 
> > As the first step to unify them, all callers are switched to this
> > renamed aio iterface, and function comment is added.
> I think this is too aggressive, and I'm not sure it's correct.
> bdrv_drain wants to look at block devices only, while this would also
> process NICs too for example.  I don't know the effect.
> Can we do this only for virtio-blk and virtio-scsi?

OK, I'll see. :)


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