huangzhaobo99 commented on code in PR #7989:
URL: https://github.com/apache/hadoop/pull/7989#discussion_r2385898627


##########
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirectory.java:
##########
@@ -1379,16 +1398,22 @@ public INodesInPath addLastINode(INodesInPath existing, 
INode inode,
     // always verify inode name
     verifyINodeName(inode.getLocalNameBytes());
 
-    final QuotaCounts counts = quotaCount.orElseGet(() -> inode.
-        computeQuotaUsage(getBlockStoragePolicySuite(),
-            parent.getStoragePolicyID(), false,
-            Snapshot.CURRENT_STATE_ID));
-    updateCount(existing, pos, counts, checkQuota);
+    if (updateQuota) {
+      QuotaCounts counts = quotaCount.orElseGet(() -> inode.
+          computeQuotaUsage(getBlockStoragePolicySuite(),
+          parent.getStoragePolicyID(), false,
+          Snapshot.CURRENT_STATE_ID));
+      updateCount(existing, pos, counts, checkQuota);
+    }
 
     boolean isRename = (inode.getParent() != null);
     final boolean added = parent.addChild(inode, true,
         existing.getLatestSnapshotId());
-    if (!added) {
+    if (!added && updateQuota) {

Review Comment:
   @zhtttylz Hi sir, I have added the RenameUndo UT. The original logic had 
some issues, but it now functions as intended after being rectified.



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