typedef struct _VOLUME_CACHE_MAP
{
    short NodeTypeCode;
    short NodeByteCode;
    unsigned long UseCount;
    DEVICE_OBJECT *DeviceObject;
    LIST_ENTRY VolumeCacheMapLinks;
    unsigned long Flags;
    unsigned __int64 DirtyPages;
    unsigned long PagesQueuedToDisk;
} VOLUME_CACHE_MAP, *PVOLUME_CACHE_MAP;