code: func SetDDLReorgWorkerCounter(cnt int32) {
  	if cnt > maxDDLReorgWorkerCount {
  		cnt = maxDDLReorgWorkerCount
  	}
  	atomic.StoreInt32(&ddlReorgWorkerCounter, cnt)
  }
docs: // SetDDLReorgWorkerCounter sets ddlReorgWorkerCounter count.
  // Max worker count is maxDDLReorgWorkerCount.