Function do_prlimit64 

pub fn do_prlimit64<T>(
    locked: &mut Locked<Unlocked>,
    current_task: &CurrentTask,
    pid: pid_t,
    user_resource: u32,
    new_limit_ref: MultiArchUserRef<rlimit, T>,
    old_limit_ref: MultiArchUserRef<rlimit, T>,
) -> Result<(), Errno>
where
    T: FromBytes + IntoBytes + Immutable + From<rlimit> + Into<rlimit>,