message: Fix an issue that tensorflow::data::model::OptimizeHillClimb function may deadlock if multiple ModelDatasetOps are running concurrently.
diff: @@ -1488,7 +1488,7 @@ void Model::OptimizeHillClimb(int64 cpu_budget, int64 ram_budget,
  double best_delta = -1.0L;
  Parameter* best_parameter = nullptr;
  for (auto& pair : parameters) {
  - if (pair.second->value == pair.second->max) {
  + if (pair.second->value >= pair.second->max) {
  continue;
  }
  pair.second->value++;
  