io_uring: add 'io_comp_state' to struct io_submit_state

No functional changes in this patch, just in preparation for passing back
pending completions to the caller and completing them in a batched
fashion.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Jens Axboe 2020-06-22 09:29:15 -06:00
commit 013538bd65