PopFxPrepareDevicesForShutdown

VOID __stdcall PopFxPrepareDevicesForShutdown(){
  _ETHREAD *CurrentThread; 
  _ETHREAD *v1; 
  unsigned int SessionId; 
  unsigned __int8 v3; 
  int v4; 
  _KLOCK_ENTRY *v5; 
  bool v6; 
  __int64 v7; 
  int v8; 
  unsigned int v9; 
  __int64 v10; 
  UINT64 a3; 

  CurrentThread = (_ETHREAD *)KeGetCurrentThread();
  --CurrentThread->Tcb.KernelApcDisable;
  ExAcquirePushLockExclusiveEx((_EX_PUSH_LOCK *)&stru_140C23628 + 489, 0i64);
  *(&stru_140CF2E80 + 7784) = 1;
  if( (_InterlockedExchangeAdd64((_QWORD *)&stru_140C23628 + 489, 0xFFFFFFFFFFFFFFFFui64) & 6) == 2 )
    ExfTryToWakePushLock((_EX_PUSH_LOCK *)&stru_140C23628 + 489);
  LODWORD(a3) = 0;
  v1 = (_ETHREAD *)KeGetCurrentThread();
  if( MiGetSystemRegionType((UINT64)&stru_140C23628 + 3912) == 1 )
    SessionId = MmGetSessionIdEx(v1->Tcb.ApcState.Process);
  else
    SessionId = -1;
  --v1->Tcb.SpecialApcDisable;
  v3 = ++v1->Tcb.AbAllocationRegionCount;
  v4 = ((char)v1->Tcb.AbEntrySummary | (char)v1->Tcb.AbOrphanedEntrySummary) ^ 0x3F;
  while( 1 )
  {
    v6 = !_BitScanReverse((unsigned int *)&v7, v4);
    if( v6 )
      goto LABEL_13;
    v5 = &v1->Tcb.LockEntries[v7];
    v4 &= ~(1 << v7);
    if( (v5->AcquiredByte & 1) != 0
      && (v5->LockState.$E8276A2CF8B819ED32D1B6FEB35D730A::_bf_0 & 1) == 0
      && (v5->LockState.$E8276A2CF8B819ED32D1B6FEB35D730A::_bf_0 & 0x7FFFFFFFFFFFFFFCi64) == (((unsigned __int64)&stru_140C23628
                                                                                             + 3912) & 0x7FFFFFFFFFFFFFFCi64)
      && v5->LockState.SessionId == SessionId )
    {
      v5->AcquiredByte &= ~1u;
      if( v5->LockState.$E8276A2CF8B819ED32D1B6FEB35D730A::_bf_0 )
        break;
    }
  }
  if( !v5 )
  {
LABEL_13:
    if( (*(&v1->Tcb.MiscFlags + 1) & 0x10000) == 0 )
      KeBugCheckEx(0x162u, v1, (char *)&stru_140C23628 + 3912, (PVOID)SessionId, 0i64);
    goto LABEL_20;
  }
  v5->CrossThreadReleasableAndBusyByte |= 2u;
  if( v5->LockState.$E8276A2CF8B819ED32D1B6FEB35D730A::_bf_0 < 0 )
    KiAbEntryRemoveFromTree(v5);
  v8 = v5->BoostBitmap.AllFields & 0x1FFFF;
  v9 = v5->BoostBitmap.AllFields & 0xFFFE0000;
  v5->ThreadLocalFlags &= ~1u;
  LODWORD(a3) = v8;
  v5->BoostBitmap.AllFields = v9;
  v5->LockState.$E8276A2CF8B819ED32D1B6FEB35D730A::_bf_0 = 0i64;
  v10 = v5 - v1->Tcb.LockEntries;
  if( v3 == 1 )
    v1->Tcb.AbEntrySummary |= 1 << v10;
  else
    _InterlockedOr8((volatile signed __int8 *)&v1->Tcb.AbOrphanedEntrySummary, 1 << v10);
LABEL_20:
  --v1->Tcb.AbAllocationRegionCount;
  KiAbThreadRemoveBoosts(&v1->Tcb, (char *)&stru_140C23628 + 3912, &a3);
  v6 = v1->Tcb.SpecialApcDisable++ == -1;
  if( v6 && ($F25F8C4BA33AF922A5F1AF68CD89DDDF *)v1->Tcb.ApcState.ApcListHead[0].Flink != &v1->Tcb.152 )
    KiCheckForKernelApcDelivery();
  KeLeaveCriticalRegionThread(KeGetCurrentThread());
  PopFxActivateDevicesForSx(4ui64);
}

Referenced by: