io_uring: add io_queue_async_work() helper

Add a helper for queueing a request for async execution, in preparation
for optimizing it.

No functional change in this patch.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Jens Axboe 2019-09-10 09:13:05 -06:00
commit 18d9be1a97