io_uring: use new io_req_task_work_add() helper throughout

Since we now have that in the 5.9 branch, convert the existing users of
task_work_add() to use this new helper.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Jens Axboe 2020-07-01 15:37:11 -06:00
commit c2c4c83c58