io_uring: poll: remove unnecessary req->ref set

We now don't need to set req->refcount for poll requests since the
reworked poll code ensures no request release race.

Signed-off-by: Hao Xu <howeyxu@tencent.com>
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/ec6fee45705890bdb968b0c175519242753c0215.1655371007.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/io_uring/poll.c b/io_uring/poll.c
index 558dc17..fdb6b11 100644 (file)
--- a/io_uring/poll.c
+++ b/io_uring/poll.c
@@ -689,7 +689,6 @@ int io_poll_add_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
        if ((flags & IORING_POLL_ADD_MULTI) && (req->flags & REQ_F_CQE_SKIP))
                return -EINVAL;
 
-       io_req_set_refcount(req);
        poll->events = io_poll_parse_events(sqe, flags);
        return 0;
 }