390   MapAllocation* allocation = reinterpret_cast<MapAllocation*>(AllocLocked(sizeof(MapAllocation)));  in MapAlloc()  local
393     FreeLocked(allocation);  in MapAlloc()
396   allocation->ptr = ptr;  in MapAlloc()
397   allocation->size = size;  in MapAlloc()
398   allocation->next = map_allocation_list_;  in MapAlloc()
399   map_allocation_list_ = allocation;  in MapAlloc()
405   MapAllocation** allocation = &map_allocation_list_;  in MapFree()  local
406   while (*allocation && (*allocation)->ptr != ptr) allocation = &(*allocation)->next;  in MapFree()
408   assert(*allocation != nullptr);  in MapFree()
410   munmap((*allocation)->ptr, (*allocation)->size);  in MapFree()
411   FreeLocked(*allocation);  in MapFree()
413   *allocation = (*allocation)->next;  in MapFree()