message: increasing the readability by using `as_usize`
diff: @@ -242,7 +242,7 @@ impl<S: PageSize> Page<S> {
  /// Flushes this page from the TLB of this CPU.
  fn flush_from_tlb(self) {
  unsafe {
  - tlb::flush(self.virtual_address.0.try_into().unwrap());
  + tlb::flush(self.virtual_address.as_usize());
  }
  }
  