to #26323588

commit 3e4827b05d2ac2d377ed136a52829ec46787bf4b upstream.

This adds IORING_OP_EPOLL_CTL, which can perform the same work as the
epoll_ctl(2) system call.
Signed-off-by: NJens Axboe <axboe@kernel.dk>
Signed-off-by: NJoseph Qi <joseph.qi@linux.alibaba.com>
Acked-by: NXiaoguang Wang <xiaoguang.wang@linux.alibaba.com>