431     for (int32_t level = 1; level < vstorage->num_levels(); ++level) {  in SeekInternal()  local
433           vstorage->LevelFiles(level);  in SeekInternal()
437       if (level_iters_[level - 1] == nullptr) {  in SeekInternal()
448         level_iters_[level - 1]->SetFileIndex(f_idx);  in SeekInternal()
449         seek_to_first ? level_iters_[level - 1]->SeekToFirst() :  in SeekInternal()
450                         level_iters_[level - 1]->Seek(internal_key);  in SeekInternal()
452         if (!level_iters_[level - 1]->status().ok()) {  in SeekInternal()
453           immutable_status_ = level_iters_[level - 1]->status();  in SeekInternal()
454         } else if (level_iters_[level - 1]->Valid() &&  in SeekInternal()
455                    !IsOverUpperBound(level_iters_[level - 1]->key())) {  in SeekInternal()
456           immutable_min_heap_.push(level_iters_[level - 1]);  in SeekInternal()
460           DeleteIterator(level_iters_[level - 1]);  in SeekInternal()
461           level_iters_[level - 1] = nullptr;  in SeekInternal()
764   for (int32_t level = 1; level < vstorage->num_levels(); ++level) {  in BuildLevelIterators()  local
765     const auto& level_files = vstorage->LevelFiles(level);  in BuildLevelIterators()
895   for (int32_t level = 1; level < vstorage->num_levels(); ++level) {  in DeleteCurrentIter()  local
896     if (level_iters_[level - 1] == nullptr) {  in DeleteCurrentIter()
899     if (level_iters_[level - 1] == current_) {  in DeleteCurrentIter()
901       DeleteIterator(level_iters_[level - 1]);  in DeleteCurrentIter()
902       level_iters_[level - 1] = nullptr;  in DeleteCurrentIter()
924   for (int32_t level = 1; level < vstorage->num_levels(); ++level) {  in TEST_CheckDeletedIters()  local
925     if ((level_iters_[level - 1] == nullptr) &&  in TEST_CheckDeletedIters()
926         (!vstorage->LevelFiles(level).empty())) {  in TEST_CheckDeletedIters()
929     } else if (!vstorage->LevelFiles(level).empty()) {  in TEST_CheckDeletedIters()