HDFS-11904. Reuse iip in unprotectedRemoveXAttrs calls.

(cherry picked from commit 219f4c199e45f8ce7f41192493bf0dc8f1e5dc30)

Conflicts:
	hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirErasureCodingOp.java

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirXAttrOp.java

@@ -170,7 +170,7 @@ class FSDirXAttrOp {
       src = iip.getPath();
       checkXAttrChangeAccess(fsd, iip, xAttr, pc);
 
-      List<XAttr> removedXAttrs = unprotectedRemoveXAttrs(fsd, src, xAttrs);
+      List<XAttr> removedXAttrs = unprotectedRemoveXAttrs(fsd, iip, xAttrs);
       if (removedXAttrs != null && !removedXAttrs.isEmpty()) {
         fsd.getEditLog().logRemoveXAttrs(src, removedXAttrs, logRetryCache);
       } else {
@@ -184,10 +184,9 @@ class FSDirXAttrOp {
   }
 
   static List<XAttr> unprotectedRemoveXAttrs(
-      FSDirectory fsd, final String src, final List<XAttr> toRemove)
+      FSDirectory fsd, final INodesInPath iip, final List<XAttr> toRemove)
       throws IOException {
     assert fsd.hasWriteLock();
-    INodesInPath iip = fsd.getINodesInPath(src, DirOp.WRITE);
     INode inode = FSDirectory.resolveLastINode(iip);
     int snapshotId = iip.getLatestSnapshotId();
     List<XAttr> existingXAttrs = XAttrStorage.readINodeXAttrs(inode);

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSEditLogLoader.java

@@ -909,7 +909,8 @@ public class FSEditLogLoader {
     }
     case OP_REMOVE_XATTR: {
       RemoveXAttrOp removeXAttrOp = (RemoveXAttrOp) op;
-      FSDirXAttrOp.unprotectedRemoveXAttrs(fsDir, removeXAttrOp.src,
+      INodesInPath iip = fsDir.getINodesInPath(removeXAttrOp.src, DirOp.WRITE);
+      FSDirXAttrOp.unprotectedRemoveXAttrs(fsDir, iip,
                                            removeXAttrOp.xAttrs);
       if (toAddRetryCache) {
         fsNamesys.addCacheEntry(removeXAttrOp.rpcClientId,