// Deallocate the device memory previously allocated via this interface.
  // Deallocation of a nullptr-representative value is permitted.
  void (*deallocate)(const SP_Device* device, SP_DeviceMemoryBase* memory);

  // Allocates a region of host memory and registers it with the platform API.
  // Memory allocated in this manner is required for use in asynchronous memcpy
  // operations, such as `memcpy_dtoh`.

            for (int i = 0; i < reservations.size(); i++) {
                ReservedPortRange range = reservations.get(i)
                if (range.allocated.contains(port)) {
                    range.deallocate(port)
                    if (reservations.size() > 1 && range.allocated.isEmpty()) {
                        releaseRange(range)
                    }
                }
            }
        } finally {

		}

		// Add the existing block to the full list.
		block.next = a.full
		a.full = block
	}

	// Allocate a new block.
	block = (*traceRegionAllocBlock)(sysAlloc(unsafe.Sizeof(traceRegionAllocBlock{}), &memstats.other_sys))
	if block == nil {
		throw("traceRegion: out of memory")
	}

	// Allocate space for our current request, so we always make
	// progress.
	block.off.Store(n)

		// include valid port range in error
		validPorts := r.portRange.String()
		return &ErrNotInRange{validPorts}
	}

	allocated, err := r.alloc.Allocate(offset)
	if err != nil {
		// update metrics
		r.metrics.incrementAllocationErrors("static")
		return err
	}
	if !allocated {
		// update metrics
		r.metrics.incrementAllocationErrors("static")
		return ErrAllocated
	}

	// update metrics

	// If we can allocate all remaining devices from the set of aligned ones, then
	// give the plugin the chance to influence which ones to allocate from that set.
	if needed < aligned.Len() {
		// First allocate from the preferred devices list (if available).
		preferred, err := m.callGetPreferredAllocationIfAvailable(podUID, contName, resource, aligned.Union(allocated), allocated, required)
		if err != nil {

					runtime.HandleError(fmt.Errorf("the node port %d for service %s/%s is not allocated; repairing", port, svc.Name, svc.Namespace))
				}
				delete(c.leaks, port) // it is used, so it can't be leaked
			case portallocator.ErrAllocated:
				// port is duplicate, reallocate
				nodePortRepairPortErrors.WithLabelValues("duplicate").Inc()

const dryRunFalse = false

// Allocate attempts to reserve the provided IP. ErrNotInRange or
// ErrAllocated will be returned if the IP is not valid for this range
// or has already been reserved.  ErrFull will be returned if there
// are no addresses left.
func (r *Range) Allocate(ip net.IP) error {
	return r.allocate(ip, dryRunFalse)
}

func (r *Range) allocate(ip net.IP, dryRun bool) error {
	label := r.CIDR()

//sysnb	EpollCtl(epfd int, op int, fd int, event *EpollEvent) (err error)
//sys	Eventfd(initval uint, flags int) (fd int, err error) = SYS_EVENTFD2
//sys	Exit(code int) = SYS_EXIT_GROUP
//sys	Fallocate(fd int, mode uint32, off int64, len int64) (err error)
//sys	Fchdir(fd int) (err error)
//sys	Fchmod(fd int, mode uint32) (err error)
//sys	Fchownat(dirfd int, path string, uid int, gid int, flags int) (err error)

	dynamicOffset := 16
	// just to double check off by one errors
	allocated := 0
	m := NewAllocationMapWithOffset(max, "test", dynamicOffset)
	// Allocate all possible values except the reserved
	for i := dynamicOffset; i < max; i++ {
		if ok, _ := m.Allocate(i); !ok {
			t.Errorf("error allocate i %v", i)
		} else {
			allocated++
		}
	}
	// Allocate all the values of the reserved block except one

	// Allocate an item in the storage
	if _, err := storage.Allocate(2); err != nil {
		t.Fatal(err)
	}

	// Release the item in the local bitmap
	// emulating it's out of sync with the storage
	err := backing.Release(2)
	if err != nil {
		t.Fatal(err)
	}

	// It should fail trying to allocate it deespite it's free
	// in the local bitmap because it's not in the storage
	ok, err := storage.Allocate(2)