Re: [RFC] aio: remove retry and cancel

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On Mon, Oct 15, 2012 at 05:27:44PM -0700, Zach Brown wrote:
> The possibility of removing retry and cancelation came up a few times
> plumbers this year.  I finally gave it a try.
> 
> Removing retry is a good iea.  It's of little value because retry
> happens in a kernel thread, not in the submitter's task.

Getting rid of retry is probably a good idea.

> I'm ambivalent about removing cancelation.  The code is almost
> never used, though, so I figured it'd be interesting to see
> if we can get away with getting rid of it.

Canellation *cannot* be removed.  If you remove cancellation, processes 
with outstanding ios at exit() time will never release their resources.

		-ben
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