On 06/16/2009 03:50 PM, Anthony Liguori wrote:
Avi Kivity wrote:
Does anyone have a clever idea how to fix this without just waiting
for all IO requests to complete?
What's wrong with waiting for requests to complete? It should take a
few tens of milliseconds.
An alternative would be to attempt to cancel the requests. This
incurs no non-deterministic latency.
Yes, that's even better (though without linux-aio, it's equivalent).
The tricky bit is that this has to happen at the device layer because
the opaques cannot be saved in a meaningful way.
Do you mean the device has to record all cancelled requests and replay
them? I think we can do it at the block layer (though we have to avoid
it for nested requests).
--
error compiling committee.c: too many arguments to function
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