Don't clear sqe->user_data as part of command prep

Reasoning:

1) If the app doesn't set it, it should not be reading it.
2) I've gotten more than one report on someone setting user_data
   before calling io_uring_prep_cmdtype() and it's a bit confusing.

I think we'll be fine not clearing this, and it may actually help
some cases that end up being a bit confusing, particular for people
new to the interface.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
1 file changed