PfLockExclusiveRelease

VOID __fastcall PfLockExclusiveRelease(UINT64 P2){
  _ETHREAD *CurrentThread; 
  unsigned int SessionId; 
  char v4; 
  int v5; 
  bool v6; 
  __int64 v7; 
  unsigned __int64 v8; 
  __int64 v9; 
  int v10; 
  if( (_InterlockedExchangeAdd64((volatile signed __int64 *)P2, 0xFFFFFFFFFFFFFFFFui64) & 6) == 2 )
    ExfTryToWakePushLock((volatile INT64 *)P2);
  v10 = 0;
  CurrentThread = (_ETHREAD *)KeGetCurrentThread();
  if( (unsigned int)MiGetSystemRegionType(P2) == 1 )
    SessionId = MmGetSessionIdEx(*((_QWORD *)CurrentThread + 23));
  else
    SessionId = -1;
  --*((_WORD *)CurrentThread + 243);
  v4 = ++*((_BYTE *)CurrentThread + 794);
  v5 = (*((char *)CurrentThread + 792) | *((char *)CurrentThread + 870)) ^ 0x3F;
  while( 1 )
  {
    v6 = !_BitScanReverse((unsigned int *)&v7, v5);
    if( v6 )
      break;
    v8 = *((_QWORD *)CurrentThread + 100) + 96 * v7;
    v5 &= ~(1 << v7);
    if( (*(_BYTE *)(v8 + 26) & 1) != 0
      && (*(_DWORD *)(v8 + 32) & 1) == 0
      && (*(_QWORD *)(v8 + 32) & 0x7FFFFFFFFFFFFFFCi64) == (P2 & 0x7FFFFFFFFFFFFFFCi64)
      && *(_DWORD *)(v8 + 40) == SessionId )
    {
      *(_BYTE *)(v8 + 26) &= ~1u;
      if( *(_QWORD *)(v8 + 32) )
      {
        if( v8 )
        {
          *(_BYTE *)(v8 + 32) |= 2u;
          if( *(__int64 *)(v8 + 32) < 0 )
            KiAbEntryRemoveFromTree(v8);
          v10 = *(_DWORD *)(v8 + 88) & 0x1FFFF;
          *(_DWORD *)(v8 + 88) &= 0xFFFE0000;
          *(_BYTE *)(v8 + 25) &= ~1u;
          *(_QWORD *)(v8 + 32) = 0i64;
          v9 = (__int64)(v8 - *((_QWORD *)CurrentThread + 100)) / 96;
          if( v4 == 1 )
            *((_BYTE *)CurrentThread + 792) |= 1 << v9;
          else
            _InterlockedOr8((volatile signed __int8 *)CurrentThread + 870, 1 << v9);
          goto LABEL_17;
        }
        break;
      }
    }
  }
  if( (*((_DWORD *)CurrentThread + 30) & 0x10000) == 0 )
    KeBugCheckEx(0x162u, (ULONG_PTR)CurrentThread, P2, SessionId, 0i64);
LABEL_17:
  --*((_BYTE *)CurrentThread + 794);
  KiAbThreadRemoveBoosts((ULONG_PTR)CurrentThread, P2, (unsigned int *)&v10);
  v6 = (*((_WORD *)CurrentThread + 243))++ == 0xFFFF;
  if( v6 && *((_ETHREAD **)CurrentThread + 19) != (_ETHREAD *)((char *)CurrentThread + 152) )
    KiCheckForKernelApcDelivery();
  KeLeaveCriticalRegion();
}

Referenced by: