fix: change some code styles

core/rawdb/prunedfreezer.go

@@ -68,7 +68,6 @@ func newPrunedFreezer(datadir string, db ethdb.KeyValueStore, offset uint64) (*p
 
 // repair init frozen , compatible disk-ancientdb and pruner-block-tool.
 func (f *prunedfreezer) repair(datadir string) error {
-	offset := atomic.LoadUint64(&f.frozen)
 	// compatible freezer
 	minItems := uint64(math.MaxUint64)
 	for name, disableSnappy := range chainFreezerNoSnappy {
@@ -100,16 +99,19 @@ func (f *prunedfreezer) repair(datadir string) error {
 	// If minItems is non-zero, it indicates that the chain freezer was previously enabled, and we should use minItems as the current frozen value.
 	// If minItems is zero, it indicates that the pruneAncient was previously enabled, and we should continue using frozen
 	//	(retrieved from CurrentAncientFreezer) as the current frozen value.
+	var offset uint64
 	if minItems != 0 {
 		offset = minItems
+	} else {
+		offset = atomic.LoadUint64(&f.frozen)
 	}
 	log.Info("Read ancientdb item counts", "items", minItems, "offset", offset)
 
-	if frozen := ReadFrozenOfAncientFreezer(f.db); frozen > offset {
-		offset = frozen
-	}
+	// FrozenOfAncientFreezer is the progress of the last prune-freezer freeze.
+	frozenInDB := ReadFrozenOfAncientFreezer(f.db)
+	maxOffset := max(offset, frozenInDB)
 
-	atomic.StoreUint64(&f.frozen, offset)
+	atomic.StoreUint64(&f.frozen, maxOffset)
 	if err := f.Sync(); err != nil {
 		return nil
 	}