io_uring: wrap multi-req freeing in struct req_batch

This cleans up the code a bit, and it allows us to build on top of the
multi-req freeing.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Jens Axboe 2019-12-28 10:48:22 -07:00
commit 8237e04598