MiAllocatePartitionId

NTSTATUS __fastcall MiAllocatePartitionId(_MI_PARTITION *Partition){
  _ETHREAD *CurrentThread; 
  UINT8 *v3; 
  unsigned int ClearBitsAndSet; 
  unsigned __int16 v5; 
  UINT8 *v6; 
  int v7; 
  unsigned int v8; 
  VOID *v10; 
  VOID *v11; 
  _TABLE_SEARCH_RESULT v12; 
  _TABLE_SEARCH_RESULT v13; 

  CurrentThread = (_ETHREAD *)KeGetCurrentThread();
  --CurrentThread->Tcb.SpecialApcDisable;
  ExAcquirePushLockExclusiveEx((_EX_PUSH_LOCK *)&stru_140C4DB30 + 259, 0i64);
  ClearBitsAndSet = (unsigned int)RtlFindClearBitsAndSet(*(&stru_140C4DB30 + 263), (VOID *)1, 0i64, v3, v10, v12);
  v5 = ClearBitsAndSet;
  if( ClearBitsAndSet == 0xFFFFFFFFi64 )
  {
    while( 1 )
    {
      MiExpandPartitionIds();
      if( !v7 )
        break;
      v8 = (unsigned int)RtlFindClearBitsAndSet(*(&stru_140C4DB30 + 263), (VOID *)1, 0i64, v6, v11, v13);
      v5 = v8;
      if( v8 != 0xFFFFFFFFi64 )
        goto LABEL_4;
    }
    if( (_InterlockedExchangeAdd64((_QWORD *)&stru_140C4DB30 + 259, 0xFFFFFFFFFFFFFFFFui64) & 6) == 2 )
      ExfTryToWakePushLock((_EX_PUSH_LOCK *)&stru_140C4DB30 + 259);
    KeAbPostRelease((char *)&stru_140C4DB30 + 2072);
    KiLeaveGuardedRegionUnsafe((__int64)CurrentThread);
    return 0;
  }
  else
  {
LABEL_4:
    *(&stru_140C4DB30 + 2156) = 1;
    *(_QWORD *)(*(&stru_140C4DB30 + 267) + 8i64 * v5) = Partition;
    if( (_InterlockedExchangeAdd64((_QWORD *)&stru_140C4DB30 + 259, 0xFFFFFFFFFFFFFFFFui64) & 6) == 2 )
      ExfTryToWakePushLock((_EX_PUSH_LOCK *)&stru_140C4DB30 + 259);
    KeAbPostRelease((char *)&stru_140C4DB30 + 2072);
    KiLeaveGuardedRegionUnsafe((__int64)CurrentThread);
    return v5;
  }
}

Referenced by: