Loop optimization: move maxlen check outside to reduce unnecessary ch…

…ecks

Signed-off-by: hengyouhai <[email protected]>

src/hashtable.c

@@ -2183,11 +2183,12 @@ int hashtableLongestBucketChain(hashtable *ht) {
             int chainlen = 0;
             bucket *b = &ht->tables[table][i];
             while (b->chained) {
-                if (++chainlen > maxlen) {
-                    maxlen = chainlen;
-                }
+                ++chainlen
                 b = getChildBucket(b);
             }
+            if (chainlen > maxlen) {
+                maxlen = chainlen;
+            }
         }
     }
     return maxlen;