PspUnlockQuotaExpansion

VOID __stdcall PspUnlockQuotaExpansion(_PSP_QUOTA_EXPANSION_DESCRIPTOR *Descriptor, UINT8 OldIrql){
  UINT64 v2; 
  unsigned __int64 v3; 
  _ETHREAD *CurrentThread; 
  char v5; 
  _ETHREAD *v6; 
  unsigned int SessionId; 
  unsigned __int8 v8; 
  int v9; 
  bool v10; 
  __int64 v11; 
  _KLOCK_ENTRY *v12; 
  int v13; 
  unsigned int v14; 
  __int64 v15; 
  UINT64 a3; 

  v2 = (UINT64)(Descriptor + 4);
  v3 = OldIrql;
  if( *Descriptor )
  {
    KxReleaseSpinLock((UINT64 *)Descriptor + 2);
    __writecr8(v3);
  }
  else
  {
    CurrentThread = (_ETHREAD *)KeGetCurrentThread();
    v5 = _InterlockedExchangeAdd64((volatile signed __int64 *)v2, 0xFFFFFFFFFFFFFFFFui64);
    if( (v5 & 2) != 0 && (v5 & 4) == 0 )
      ExfTryToWakePushLock((_EX_PUSH_LOCK *)Descriptor + 2);
    LODWORD(a3) = 0;
    v6 = (_ETHREAD *)KeGetCurrentThread();
    if( MiGetSystemRegionType(v2) == 1 )
      SessionId = MmGetSessionIdEx(v6->Tcb.ApcState.Process);
    else
      SessionId = -1;
    --v6->Tcb.SpecialApcDisable;
    v8 = ++v6->Tcb.AbAllocationRegionCount;
    v9 = ((char)v6->Tcb.AbEntrySummary | (char)v6->Tcb.AbOrphanedEntrySummary) ^ 0x3F;
    while( 1 )
    {
      v10 = !_BitScanReverse((unsigned int *)&v11, v9);
      if( v10 )
        break;
      v12 = &v6->Tcb.LockEntries[v11];
      v9 &= ~(1 << v11);
      if( (v12->AcquiredByte & 1) != 0
        && (v12->LockState.$E8276A2CF8B819ED32D1B6FEB35D730A::_bf_0 & 1) == 0
        && (v12->LockState.$E8276A2CF8B819ED32D1B6FEB35D730A::_bf_0 & 0x7FFFFFFFFFFFFFFCi64) == (v2 & 0x7FFFFFFFFFFFFFFCi64)
        && v12->LockState.SessionId == SessionId )
      {
        v12->AcquiredByte &= ~1u;
        if( v12->LockState.$E8276A2CF8B819ED32D1B6FEB35D730A::_bf_0 )
        {
          if( v12 )
          {
            v12->CrossThreadReleasableAndBusyByte |= 2u;
            if( v12->LockState.$E8276A2CF8B819ED32D1B6FEB35D730A::_bf_0 < 0 )
              KiAbEntryRemoveFromTree(v12);
            v13 = v12->BoostBitmap.AllFields & 0x1FFFF;
            v14 = v12->BoostBitmap.AllFields & 0xFFFE0000;
            v12->ThreadLocalFlags &= ~1u;
            LODWORD(a3) = v13;
            v12->BoostBitmap.AllFields = v14;
            v12->LockState.$E8276A2CF8B819ED32D1B6FEB35D730A::_bf_0 = 0i64;
            v15 = v12 - v6->Tcb.LockEntries;
            if( v8 == 1 )
              v6->Tcb.AbEntrySummary |= 1 << v15;
            else
              _InterlockedOr8((volatile signed __int8 *)&v6->Tcb.AbOrphanedEntrySummary, 1 << v15);
            goto LABEL_18;
          }
          break;
        }
      }
    }
    if( (*(&v6->Tcb.MiscFlags + 1) & 0x10000) == 0 )
      KeBugCheckEx(0x162u, v6, (PVOID)v2, (PVOID)SessionId, 0i64);
LABEL_18:
    --v6->Tcb.AbAllocationRegionCount;
    KiAbThreadRemoveBoosts(&v6->Tcb, (VOID *)v2, &a3);
    v10 = v6->Tcb.SpecialApcDisable++ == -1;
    if( v10 && ($F25F8C4BA33AF922A5F1AF68CD89DDDF *)v6->Tcb.ApcState.ApcListHead[0].Flink != &v6->Tcb.152 )
      KiCheckForKernelApcDelivery();
    KiLeaveGuardedRegionUnsafe((__int64)CurrentThread);
  }
}

Referenced by: