io_uring: add 'struct open_how' to the openat request context

We'll need this for openat2(2) support, remove flags and mode from
the existing io_open struct.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Jens Axboe 2020-01-08 17:41:21 -07:00
commit c12cedf24e