RtlpHpAcquireReleaseLockExclusive

NTSTATUS __stdcall RtlpHpAcquireReleaseLockExclusive(PVOID BugCheckParameter2){
  UINT64 v1; 
  _ETHREAD *CurrentThread; 
  char v4; 
  _ETHREAD *v5; 
  unsigned int SessionId; 
  char v7; 
  int v8; 
  bool v9; 
  __int64 v10; 
  unsigned __int64 v11; 
  int v12; 
  unsigned int v13; 
  __int64 v14; 
  NTSTATUS result; 
  unsigned __int64 v16; 
  int v17; 
  if( (_DWORD)v1 )
  {
    v16 = ExAcquireSpinLockExclusive((PEX_SPIN_LOCK)BugCheckParameter2);
    ExReleaseSpinLockExclusiveFromDpcLevel((INT64 *)BugCheckParameter2);
    result = KiIrqlFlags;
    __writecr8(v16);
  }
  else
  {
    CurrentThread = (_ETHREAD *)KeGetCurrentThread();
    --*((_WORD *)CurrentThread + 243);
    ExAcquirePushLockExclusiveEx((UINT64)BugCheckParameter2, v1);
    v4 = _InterlockedExchangeAdd64((volatile signed __int64 *)BugCheckParameter2, 0xFFFFFFFFFFFFFFFFui64);
    if( (v4 & 2) != 0 && (v4 & 4) == 0 )
      ExfTryToWakePushLock((volatile INT64 *)BugCheckParameter2);
    v17 = 0;
    v5 = (_ETHREAD *)KeGetCurrentThread();
    if( (unsigned int)MiGetSystemRegionType((UINT64)BugCheckParameter2) == 1 )
      SessionId = MmGetSessionIdEx(*((_QWORD *)v5 + 23));
    else
      SessionId = -1;
    --*((_WORD *)v5 + 243);
    v7 = ++*((_BYTE *)v5 + 794);
    v8 = (*((char *)v5 + 792) | *((char *)v5 + 870)) ^ 0x3F;
    while( 1 )
    {
      v9 = !_BitScanReverse((unsigned int *)&v10, v8);
      if( v9 )
        break;
      v11 = *((_QWORD *)v5 + 100) + 96 * v10;
      v8 &= ~(1 << v10);
      if( (*(_BYTE *)(v11 + 26) & 1) != 0
        && (*(_DWORD *)(v11 + 32) & 1) == 0
        && (*(_QWORD *)(v11 + 32) & 0x7FFFFFFFFFFFFFFCi64) == ((unsigned __int64)BugCheckParameter2 & 0x7FFFFFFFFFFFFFFCi64)
        && *(_DWORD *)(v11 + 40) == SessionId )
      {
        *(_BYTE *)(v11 + 26) &= ~1u;
        if( *(_QWORD *)(v11 + 32) )
        {
          if( v11 )
          {
            *(_BYTE *)(v11 + 32) |= 2u;
            if( *(__int64 *)(v11 + 32) < 0 )
              KiAbEntryRemoveFromTree(v11);
            v12 = *(_DWORD *)(v11 + 88) & 0x1FFFF;
            v13 = *(_DWORD *)(v11 + 88) & 0xFFFE0000;
            *(_BYTE *)(v11 + 25) &= ~1u;
            v17 = v12;
            *(_DWORD *)(v11 + 88) = v13;
            *(_QWORD *)(v11 + 32) = 0i64;
            v14 = (__int64)(v11 - *((_QWORD *)v5 + 100)) / 96;
            if( v7 == 1 )
              *((_BYTE *)v5 + 792) |= 1 << v14;
            else
              _InterlockedOr8((volatile signed __int8 *)v5 + 870, 1 << v14);
            goto LABEL_17;
          }
          break;
        }
      }
    }
    if( (*((_DWORD *)v5 + 30) & 0x10000) == 0 )
      KeBugCheckEx(0x162u, (ULONG_PTR)v5, (ULONG_PTR)BugCheckParameter2, SessionId, 0i64);
LABEL_17:
    --*((_BYTE *)v5 + 794);
    KiAbThreadRemoveBoosts((ULONG_PTR)v5, (__int64)BugCheckParameter2, (unsigned int *)&v17);
    v9 = (*((_WORD *)v5 + 243))++ == 0xFFFF;
    if( v9 && *((_ETHREAD **)v5 + 19) != (_ETHREAD *)((char *)v5 + 152) )
      KiCheckForKernelApcDelivery();
    return KiLeaveGuardedRegionUnsafe((__int64)KeGetCurrentThread());
  }
  return result;
}

Referenced by: