diff --git a/CHANGES.txt b/CHANGES.txt
index 45723d1bba5..0950f2dba40 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -258,6 +258,8 @@ Release 0.22.0 - Unreleased
     HADOOP-6811. Remove EC2 bash scripts. They are replaced by Apache Whirr
     (incubating, http://incubator.apache.org/whirr). (tomwhite)
 
+    HADOOP-7102. Remove "fs.ramfs.impl" field from core-deafult.xml (shv)
+
   OPTIMIZATIONS
 
     HADOOP-6884. Add LOG.isDebugEnabled() guard for each LOG.debug(..).
diff --git a/src/java/core-default.xml b/src/java/core-default.xml
index 467cbca389d..aa6da1c8b16 100644
--- a/src/java/core-default.xml
+++ b/src/java/core-default.xml
@@ -297,12 +297,6 @@
   </description>
 </property>
 
-<property>
-  <name>fs.ramfs.impl</name>
-  <value>org.apache.hadoop.fs.InMemoryFileSystem</value>
-  <description>The FileSystem for ramfs: uris.</description>
-</property>
-
 <property>
   <name>fs.har.impl</name>
   <value>org.apache.hadoop.fs.HarFileSystem</value>
diff --git a/src/java/org/apache/hadoop/io/SequenceFile.java b/src/java/org/apache/hadoop/io/SequenceFile.java
index 40ca133585a..4d5963ab9be 100644
--- a/src/java/org/apache/hadoop/io/SequenceFile.java
+++ b/src/java/org/apache/hadoop/io/SequenceFile.java
@@ -3371,9 +3371,6 @@ public class SequenceFile {
       public boolean nextRawKey() throws IOException {
         if (in == null) {
           int bufferSize = getBufferSize(conf); 
-          if (fs.getUri().getScheme().startsWith("ramfs")) {
-            bufferSize = conf.getInt("io.bytes.per.checksum", 512);
-          }
           Reader reader = new Reader(conf,
                                      Reader.file(segmentPathName), 
                                      Reader.bufferSize(bufferSize),