pub fn sys_io_cancel(
current_task: &CurrentTask,
ctx_id: aio_context_t,
user_iocb: IocbPtr,
_result: UserRef<io_event>,
) -> Result<(), Errno>pub fn sys_io_cancel(
current_task: &CurrentTask,
ctx_id: aio_context_t,
user_iocb: IocbPtr,
_result: UserRef<io_event>,
) -> Result<(), Errno>