MiCheckAndUpdateIoAttribution

VOID __stdcall MiCheckAndUpdateIoAttribution(_MMPFN *Pfn1){
  _ETHREAD *CurrentThread; 
  union {unsigned __int64 Long;volatile unsigned __int64 VolatileLong;_MMPTE_HARDWARE Hard;_MMPTE_PROTOTYPE Proto;_MMPTE_SOFTWARE Soft;_MMPTE_TIMESTAMP TimeStamp;_MMPTE_TRANSITION Trans;_MMPTE_SUBSECTION Subsect;_MMPTE_LIST List;} v2; 
  __int64 v3; 
  unsigned __int64 v4; 
  VOID *v5; 
  unsigned __int8 v6; 
  __int64 v7; 
  unsigned __int64 v8; 
  unsigned __int64 v9; 
  __int64 v10; 
  PVOID OpaqueContext; 

  CurrentThread = (_ETHREAD *)KeGetCurrentThread();
  v2.Long = (unsigned __int64)Pfn1->OriginalPte.u;
  OpaqueContext = 0i64;
  if( *(&stru_140C4DB30 + 42) && (v2.Long & 0x10) == 0 )
    v2.Long &= ~*(&stru_140C4DB30 + 42);
  v3 = *(_QWORD *)(v2.Hard._bf_0 >> 16);
  if( (*(_DWORD *)(v3 + 56) & 0x20) == 0 && IoReferenceIoAttributionFromThread(CurrentThread, &OpaqueContext) >= 0 )
  {
    v4 = (unsigned __int64)OpaqueContext;
    if( OpaqueContext == (PVOID)(8i64 * *(_QWORD *)(v3 + 120)) )
    {
      v5 = OpaqueContext;
    }
    else
    {
      v6 = ExAcquireSpinLockExclusive((INT64 *)(v3 + 72));
      v7 = *(_QWORD *)(v3 + 120);
      v8 = v6;
      v9 = v7 & 0xE000000000000000ui64;
      v10 = 8 * v7;
      *(_QWORD *)(v3 + 120) = (v4 >> 3) | v9;
      ExReleaseSpinLockExclusiveFromDpcLevel((INT64 *)(v3 + 72));
      __writecr8(v8);
      if( !v10 )
        return;
      v5 = (VOID *)v10;
    }
    IoDiskIoAttributionDereference(v5);
  }
}

Referenced by: