KeAbPostRelease

VOID __stdcall KeAbPostRelease(VOID *Lock){
  _ETHREAD *CurrentThread; 
  int v2; 
  unsigned int SessionId; 
  unsigned __int8 v5; 
  int v6; 
  bool v7; 
  __int64 v8; 
  _KLOCK_ENTRY *v9; 
  unsigned int v10; 
  __int64 v11; 
  char v12; 

  CurrentThread = (_ETHREAD *)KeGetCurrentThread();
  v2 = 0;
  v12 = 0;
  if( (unsigned __int64)Lock >= 0xFFFF800000000000ui64
    && *((_BYTE *)&stru_140C4DB30 + (((unsigned __int64)Lock >> 39) & 0x1FF) + 6872) == 1 )
  {
    SessionId = MmGetSessionIdEx(CurrentThread->Tcb.ApcState.Process);
  }
  else
  {
    SessionId = -1;
  }
  --CurrentThread->Tcb.SpecialApcDisable;
  v5 = ++CurrentThread->Tcb.AbAllocationRegionCount;
  v6 = ((char)CurrentThread->Tcb.AbEntrySummary | (char)CurrentThread->Tcb.AbOrphanedEntrySummary) ^ 0x3F;
  v7 = !_BitScanReverse((unsigned int *)&v8, v6);
  if( v7 )
    goto LABEL_22;
  while( 1 )
  {
    v9 = &CurrentThread->Tcb.LockEntries[v8];
    v6 &= ~(1 << v8);
    if( (v9->AcquiredByte & 1) != 0
      && (v9->LockState.$E8276A2CF8B819ED32D1B6FEB35D730A::_bf_0 & 1) == 0
      && (v9->LockState.$E8276A2CF8B819ED32D1B6FEB35D730A::_bf_0 & 0x7FFFFFFFFFFFFFFCi64) == ((unsigned __int64)Lock & 0x7FFFFFFFFFFFFFFCi64)
      && v9->LockState.SessionId == SessionId )
    {
      v9->AcquiredByte &= ~1u;
      if( v9->LockState.$E8276A2CF8B819ED32D1B6FEB35D730A::_bf_0 )
        break;
    }
    v7 = !_BitScanReverse((unsigned int *)&v8, v6);
    if( v7 )
      goto LABEL_22;
  }
  if( !v9 )
  {
LABEL_22:
    if( (*(&CurrentThread->Tcb.MiscFlags + 1) & 0x10000) == 0 )
      KeBugCheckEx(0x162u, CurrentThread, Lock, (PVOID)SessionId, 0i64);
  }
  else
  {
    v9->CrossThreadReleasableAndBusyByte |= 2u;
    if( v9->LockState.$E8276A2CF8B819ED32D1B6FEB35D730A::_bf_0 < 0 )
      KiAbEntryRemoveFromTree(v9);
    v2 = v9->BoostBitmap.AllFields & 0x1FFFF;
    v10 = v9->BoostBitmap.AllFields & 0xFFFE0000;
    v9->ThreadLocalFlags &= ~1u;
    v12 = BYTE2(v2);
    v9->BoostBitmap.AllFields = v10;
    v9->LockState.$E8276A2CF8B819ED32D1B6FEB35D730A::_bf_0 = 0i64;
    v11 = v9 - CurrentThread->Tcb.LockEntries;
    if( v5 == 1 )
      CurrentThread->Tcb.AbEntrySummary |= 1 << v11;
    else
      _InterlockedOr8((volatile signed __int8 *)&CurrentThread->Tcb.AbOrphanedEntrySummary, 1 << v11);
  }
  --CurrentThread->Tcb.AbAllocationRegionCount;
  if( (v2 & 0x1FFFF) != 0 )
  {
    if( (v2 & 0x8000u) != 0 )
      KiAbThreadUnboostIoPriority(&CurrentThread->Tcb, 0i64);
    if( (v12 & 1) != 0 )
    {
      _InterlockedDecrement(&CurrentThread->Tcb.AbCompletedIoQoSBoostCount);
      PsBoostThreadIoQoS(CurrentThread, 1ui64);
    }
    if( (v2 & 0x7FFF) != 0 )
      KiAbThreadUnboostCpuPriority(&CurrentThread->Tcb, (_KLOCK_ENTRY *)(v2 & 0x7FFF));
  }
  v7 = CurrentThread->Tcb.SpecialApcDisable++ == -1;
  if( v7
    && ($F25F8C4BA33AF922A5F1AF68CD89DDDF *)CurrentThread->Tcb.ApcState.ApcListHead[0].Flink != &CurrentThread->Tcb.152 )
  {
    KiCheckForKernelApcDelivery();
  }
}

Referenced by: