RtlpHpLargeAllocSetExtraPresent

UINT64 __stdcall RtlpHpLargeAllocSetExtraPresent(PVOID Va, UINT8 WsIrql){
  char v2; 
  UINT64 v3; 
  char v4; 
  UINT64 result; 
  unsigned __int64 v7; 
  unsigned __int64 v8; 

  v3 = WsIrql;
  v4 = v2;
  LOBYTE(result) = RtlpHpLargeLockAcquireShared((__int64)Va, v2);
  v7 = (unsigned __int8)result;
  v8 = *((_QWORD *)Va + 9);
  if( (*((_BYTE *)Va + 80) & 1) != 0 )
  {
    if( v8 )
      v8 ^= (unsigned __int64)Va + 72;
    else
      v8 = 0i64;
  }
  while( v8 )
  {
    result = *(_QWORD *)(v8 + 24) & 0xFFFFFFFFFFFF0000ui64;
    if( v3 < result )
    {
      result = *(_QWORD *)v8;
    }
    else
    {
      if( v3 <= result )
        goto LABEL_16;
      result = *(_QWORD *)(v8 + 8);
    }
    if( (*((_BYTE *)Va + 80) & 1) != 0 && result )
      v8 ^= result;
    else
      v8 = result;
  }
  v8 = 0i64;
LABEL_16:
  if( (v4 & 1) == 0 )
  {
    if( (*(_DWORD *)Va & 1) != 0 )
    {
      ExReleaseSpinLockSharedFromDpcLevel((PEX_SPIN_LOCK)Va + 16);
      result = (unsigned int)KiIrqlFlags;
      __writecr8(v7);
    }
    else
    {
      if( _InterlockedCompareExchange64((volatile signed __int64 *)Va + 8, 0i64, 17i64) != 17 )
        ExfReleasePushLockShared((_EX_PUSH_LOCK *)Va + 8);
      KeAbPostRelease((char *)Va + 64);
      KiLeaveGuardedRegionUnsafe((__int64)KeGetCurrentThread());
    }
  }
  *(_QWORD *)(v8 + 32) |= 1ui64;
  return result;
}

Referenced by: