io_uring: don't init req->work fully in advance
req->work is mostly unused unless it's punted, and io_init_req() is too hot for fully initialising it. Fortunately, we can skip init work.next as it's controlled by io-wq, and can not touch work.flags by moving everything related into io_prep_async_work(). The only field left is req->work.creds, but there is nothing can be done, keep maintaining it. Signed-off-by:Pavel Begunkov <asml.silence@gmail.com> Signed-off-by:
Jens Axboe <axboe@kernel.dk>
parent
8418f22a
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