RtlpHpReleaseQueuedLockExclusive

INT64 __fastcall RtlpHpReleaseQueuedLockExclusive(INT64 a1, INT64 a2){
  UINT64 v2; 
  unsigned __int64 v4; 
  INT64 result; 
  _ETHREAD *CurrentThread; 
  ULONG_PTR SessionId; 
  char v8; 
  int v9; 
  bool v10; 
  __int64 v11; 
  unsigned __int64 v12; 
  __int64 v13; 
  int v14; 
  v2 = *(_QWORD *)(a2 + 8);
  if( (_DWORD)a1 )
  {
    v4 = *(unsigned __int8 *)(a2 + 16);
    *(_DWORD *)v2 = 0;
    result = (unsigned int)KiIrqlFlags;
    __writecr8(v4);
    *(_QWORD *)(a2 + 8) = 0i64;
  }
  else
  {
    if( (_InterlockedExchangeAdd64((volatile signed __int64 *)v2, 0xFFFFFFFFFFFFFFFFui64) & 6) == 2 )
      ExfTryToWakePushLock((volatile INT64 *)v2);
    v14 = 0;
    CurrentThread = (_ETHREAD *)KeGetCurrentThread();
    if( (unsigned int)MiGetSystemRegionType(v2) == 1 )
      SessionId = (unsigned int)MmGetSessionIdEx(*((_QWORD *)CurrentThread + 23));
    else
      SessionId = 0xFFFFFFFFi64;
    --*((_WORD *)CurrentThread + 243);
    v8 = ++*((_BYTE *)CurrentThread + 794);
    v9 = (*((char *)CurrentThread + 792) | *((char *)CurrentThread + 870)) ^ 0x3F;
    v10 = !_BitScanReverse((unsigned int *)&v11, v9);
    if( v10 )
      goto LABEL_24;
    while( 1 )
    {
      v12 = *((_QWORD *)CurrentThread + 100) + 96 * v11;
      v9 &= ~(1 << v11);
      if( (*(_BYTE *)(v12 + 26) & 1) != 0
        && (*(_DWORD *)(v12 + 32) & 1) == 0
        && (*(_QWORD *)(v12 + 32) & 0x7FFFFFFFFFFFFFFCi64) == (v2 & 0x7FFFFFFFFFFFFFFCi64)
        && *(_DWORD *)(v12 + 40) == (_DWORD)SessionId )
      {
        *(_BYTE *)(v12 + 26) &= ~1u;
        if( *(_QWORD *)(v12 + 32) )
          break;
      }
      v10 = !_BitScanReverse((unsigned int *)&v11, v9);
      if( v10 )
        goto LABEL_24;
    }
    if( !v12 )
    {
LABEL_24:
      if( (*((_DWORD *)CurrentThread + 30) & 0x10000) == 0 )
        KeBugCheckEx(0x162u, (ULONG_PTR)CurrentThread, v2, SessionId, 0i64);
    }
    else
    {
      *(_BYTE *)(v12 + 32) |= 2u;
      if( *(__int64 *)(v12 + 32) < 0 )
        KiAbEntryRemoveFromTree(v12);
      v14 = *(_DWORD *)(v12 + 88) & 0x1FFFF;
      *(_DWORD *)(v12 + 88) &= 0xFFFE0000;
      *(_BYTE *)(v12 + 25) &= ~1u;
      *(_QWORD *)(v12 + 32) = 0i64;
      v13 = (__int64)(v12 - *((_QWORD *)CurrentThread + 100)) / 96;
      if( v8 == 1 )
        *((_BYTE *)CurrentThread + 792) |= 1 << v13;
      else
        _InterlockedOr8((volatile signed __int8 *)CurrentThread + 870, 1 << v13);
    }
    --*((_BYTE *)CurrentThread + 794);
    KiAbThreadRemoveBoosts((ULONG_PTR)CurrentThread, v2, (unsigned int *)&v14);
    v10 = (*((_WORD *)CurrentThread + 243))++ == 0xFFFF;
    if( v10 && *((_ETHREAD **)CurrentThread + 19) != (_ETHREAD *)((char *)CurrentThread + 152) )
      KiCheckForKernelApcDelivery();
    result = KiLeaveGuardedRegionUnsafe((__int64)KeGetCurrentThread());
    *(_QWORD *)(a2 + 8) = 0i64;
  }
  return result;
}

Referenced by: