HDFS-6228. comments typo fix for FsDatasetImpl.java Contributed by zhaoyunjiong.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1586264 13f79535-47bb-0310-9956-ffa450edef68

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

@@ -123,6 +123,8 @@ Trunk (Unreleased)
     HDFS-5721. sharedEditsImage in Namenode#initializeSharedEdits() should be 
     closed before method returns. (Ted Yu via junping_du)
 
+    HDFS-6228. comments typo fix for FsDatasetImpl.java (zhaoyunjiong via umamahesh)
+
   OPTIMIZATIONS
 
   BUG FIXES

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/impl/FsDatasetImpl.java

@@ -564,7 +564,7 @@ class FsDatasetImpl implements FsDatasetSpi<FsVolumeImpl> {
    * @param bpid block pool Id
    * @param replicaInfo a finalized replica
    * @param newGS new generation stamp
-   * @param estimateBlockLen estimate generation stamp
+   * @param estimateBlockLen estimate block length
    * @return a RBW replica
    * @throws IOException if moving the replica from finalized directory 
    *         to rbw directory fails