Commits
Al Viro committed 2bb874c0d87
aio: store event at final iocb_put()
Instead of having aio_complete() set ->ki_res.{res,res2}, do that
explicitly in its callers, drop the reference (as aio_complete()
used to do) and delay the rest until the final iocb_put().
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>