Re: [Xen-devel] [PATCH 0 of 4] aio event fd support to blktap2

[Daniel Stodden <daniel.stodden@xxxxxxxxxx>]

On Tue, 2010-02-02 at 17:53 -0500, David P. Quigley wrote:
> Is this patch set related to the AIO poll support that blocktap2 keeps
> complaining about when I use tap:tapdisk:aio as the disk type? 

On pvops, yes.

> I found
> the code that changes io_setup in the Novell Xen patches but its part of
> a reasonably large patch.

Shouldn't depend on the disktype. As long as it's blktap, not blkback on
a raw vdi, all disk drivers depend on this.

The io_setup change you're referring might rather be the old way of
doing things. It made io_setup return an fd to poll, if the io_setup
caller calls with a 'magic' (1, actually) aio_ctx value.

Daniel



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