/* Get the physical size of a file on the disk. */
UINT64 FatPhysicalFileSize(IN FAT_VOLUME *Volume, IN UINTN RealSize)
/* Get the physical size of a file on the disk. */
UINT64 FatPhysicalFileSize(IN FAT_VOLUME *Volume, IN UINTN RealSize)
{
  UINTN   ClusterSizeMask;
  UINT64  PhysicalSize;
  ClusterSizeMask = Volume->ClusterSize - 1;
  PhysicalSize    = (RealSize + ClusterSizeMask) & (~((UINT64)ClusterSizeMask));
  return PhysicalSize;
}