Re: [Xen-devel] [PATCH v1 1/2] libxl: give pciback a chance to do its teardown before we reset the device.

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Wed, 2014-06-04 at 09:33 -0400, Konrad Rzeszutek Wilk wrote:
> We try to reset the device before we signal the pciback that
> the device is no longer to be used by the guest. As such
> we should give the pciback (or QEMU) a chance first to
> some cleanup before we deploy the sledghammer approach
> of resetting the device.

What does "a chance" correspond to here? Do we wait for some defined
time for the state node to hit closed or are we now relying in winning a
race more often than before?

I think we would obviously prefer the former, meaning there should be a
call to libxl__wait_for_backend("6") in here somewhere I think.

Ian.


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