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

From: Paolo Bonzini
Subject: Re: [Qemu-block] [PATCH 2/4] virtio: Always use aio path to set host handler
Date: Fri, 24 Jun 2016 08:39:57 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.1.1

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?


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