On 12/16/18 9:34 AM, Christoph Hellwig wrote:

Any chance you could send the series that just optimize the existing
aio code and don't need new interface as an initial prep series?

Batching things up should make it a little easier to review, and with
a little luck those "simple" patches might still make 4.21.  Make
sure to include Al on the series, please.

Sure, I can do that. So basically all of the optimizations, but none of
the features (like polling)? Would require serious refactoring though,
but not impossible.

Or do you mean everything up to polled IO for old style aio, just
excluding the new ring interfaces?

-- 
Jens Axboe