HDFS-6890. Merging change r1619500 from trunk

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1619501 13f79535-47bb-0310-9956-ffa450edef68

hadoop-hdfs-project/hadoop-hdfs-nfs/src/main/java/org/apache/hadoop/hdfs/nfs/nfs3/RpcProgramNfs3.java

@@ -1643,6 +1643,7 @@ public class RpcProgramNfs3 extends RpcProgram implements Nfs3Interface {
     DirectoryListing dlisting = null;
     Nfs3FileAttributes postOpDirAttr = null;
     long dotdotFileId = 0;
+    HdfsFileStatus dotdotStatus = null;
     try {
       String dirFileIdPath = Nfs3Utils.getFileIdPath(handle);
       dirStatus = dfsClient.getFileInfo(dirFileIdPath);
@@ -1678,7 +1679,7 @@ public class RpcProgramNfs3 extends RpcProgram implements Nfs3Interface {
       if (cookie == 0) {
         // Get dotdot fileId
         String dotdotFileIdPath = dirFileIdPath + "/..";
-        HdfsFileStatus dotdotStatus = dfsClient.getFileInfo(dotdotFileIdPath);
+        dotdotStatus = dfsClient.getFileInfo(dotdotFileIdPath);
 
         if (dotdotStatus == null) {
           // This should not happen
@@ -1723,7 +1724,8 @@ public class RpcProgramNfs3 extends RpcProgram implements Nfs3Interface {
           postOpDirAttr.getFileId(), ".", 0, postOpDirAttr, new FileHandle(
               postOpDirAttr.getFileId()));
       entries[1] = new READDIRPLUS3Response.EntryPlus3(dotdotFileId, "..",
-          dotdotFileId, postOpDirAttr, new FileHandle(dotdotFileId));
+          dotdotFileId, Nfs3Utils.getNfs3FileAttrFromFileStatus(dotdotStatus,
+              iug), new FileHandle(dotdotFileId));
 
       for (int i = 2; i < n + 2; i++) {
         long fileId = fstatus[i - 2].getFileId();

hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt

@@ -280,6 +280,8 @@ Release 2.6.0 - UNRELEASED
     HDFS-6870. Blocks and INodes could leak for Rename with overwrite flag. (Yi
     Liu via jing9)
 
+    HDFS-6890. NFS readdirplus doesn't return dotdot attributes (brandonli)
+
 Release 2.5.0 - 2014-08-11
 
   INCOMPATIBLE CHANGES