/* We use do not use 'ValidDataLength' as I assume W32
* automatically increases 'ValidDataLength' during Cache Manager write operations.
* We do not increase it and therefore it is mostly useless for us.
+ * In some cases (during NTFS mount) there may be also invalid 'ValidDataLength' at all:
+ * CcSetFileSizes(AllocationSize=0x1000000,FileSize=0xf80208,ValidDataLength=0x23b801a0)
*/
guint64 ValidDataLength; /* ==CC_FILE_SIZES.ValidDataLength.QuadPart */
/* The real allocation size of 'buffer' and 'pages'.