diff --git a/core/proto/android/service/diskstats.proto b/core/proto/android/service/diskstats.proto
index 4d86526..4057e45 100644
--- a/core/proto/android/service/diskstats.proto
+++ b/core/proto/android/service/diskstats.proto
@@ -47,7 +47,7 @@
 }
 
 message DiskStatsCachedValuesProto {
-    // Total app data size, in kilobytes
+    // Total app code size, in kilobytes
     int64 agg_apps_size = 1;
     // Total app cache size, in kilobytes
     int64 agg_apps_cache_size = 2;
@@ -65,15 +65,19 @@
     int64 other_size = 8;
     // Sizes of individual packages
     repeated DiskStatsAppSizesProto app_sizes = 9;
+    // Total app data size, in kilobytes
+    int64 agg_apps_data_size = 10;
 }
 
 message DiskStatsAppSizesProto {
     // Name of the package
     string package_name = 1;
-    // App's data size in kilobytes
+    // App's code size in kilobytes
     int64 app_size = 2;
     // App's cache size in kilobytes
     int64 cache_size = 3;
+    // App's data size in kilobytes
+    int64 app_data_size = 4;
 }
 
 message DiskStatsFreeSpaceProto {
diff --git a/services/core/java/com/android/server/DiskStatsService.java b/services/core/java/com/android/server/DiskStatsService.java
index 800081e..2d2c6b0 100644
--- a/services/core/java/com/android/server/DiskStatsService.java
+++ b/services/core/java/com/android/server/DiskStatsService.java
@@ -202,6 +202,8 @@
             JSONObject json = new JSONObject(jsonString);
             pw.print("App Size: ");
             pw.println(json.getLong(DiskStatsFileLogger.APP_SIZE_AGG_KEY));
+            pw.print("App Data Size: ");
+            pw.println(json.getLong(DiskStatsFileLogger.APP_DATA_SIZE_AGG_KEY));
             pw.print("App Cache Size: ");
             pw.println(json.getLong(DiskStatsFileLogger.APP_CACHE_AGG_KEY));
             pw.print("Photos Size: ");
@@ -220,6 +222,8 @@
             pw.println(json.getJSONArray(DiskStatsFileLogger.PACKAGE_NAMES_KEY));
             pw.print("App Sizes: ");
             pw.println(json.getJSONArray(DiskStatsFileLogger.APP_SIZES_KEY));
+            pw.print("App Data Sizes: ");
+            pw.println(json.getJSONArray(DiskStatsFileLogger.APP_DATA_KEY));
             pw.print("Cache Sizes: ");
             pw.println(json.getJSONArray(DiskStatsFileLogger.APP_CACHES_KEY));
         } catch (IOException | JSONException e) {
@@ -235,6 +239,8 @@
 
             proto.write(DiskStatsCachedValuesProto.AGG_APPS_SIZE,
                     json.getLong(DiskStatsFileLogger.APP_SIZE_AGG_KEY));
+            proto.write(DiskStatsCachedValuesProto.AGG_APPS_DATA_SIZE,
+                    json.getLong(DiskStatsFileLogger.APP_DATA_SIZE_AGG_KEY));
             proto.write(DiskStatsCachedValuesProto.AGG_APPS_CACHE_SIZE,
                     json.getLong(DiskStatsFileLogger.APP_CACHE_AGG_KEY));
             proto.write(DiskStatsCachedValuesProto.PHOTOS_SIZE,
@@ -252,22 +258,26 @@
 
             JSONArray packageNamesArray = json.getJSONArray(DiskStatsFileLogger.PACKAGE_NAMES_KEY);
             JSONArray appSizesArray = json.getJSONArray(DiskStatsFileLogger.APP_SIZES_KEY);
+            JSONArray appDataSizesArray = json.getJSONArray(DiskStatsFileLogger.APP_DATA_KEY);
             JSONArray cacheSizesArray = json.getJSONArray(DiskStatsFileLogger.APP_CACHES_KEY);
             final int len = packageNamesArray.length();
-            if (len == appSizesArray.length() && len == cacheSizesArray.length()) {
+            if (len == appSizesArray.length()
+                    && len == appDataSizesArray.length()
+                    && len == cacheSizesArray.length()) {
                 for (int i = 0; i < len; i++) {
                     long packageToken = proto.start(DiskStatsCachedValuesProto.APP_SIZES);
 
                     proto.write(DiskStatsAppSizesProto.PACKAGE_NAME,
                             packageNamesArray.getString(i));
                     proto.write(DiskStatsAppSizesProto.APP_SIZE, appSizesArray.getLong(i));
+                    proto.write(DiskStatsAppSizesProto.APP_DATA_SIZE, appDataSizesArray.getLong(i));
                     proto.write(DiskStatsAppSizesProto.CACHE_SIZE, cacheSizesArray.getLong(i));
 
                     proto.end(packageToken);
                 }
             } else {
-                Slog.wtf(TAG, "Sizes of packageNamesArray, appSizesArray and cacheSizesArray "
-                        + "are not the same");
+                Slog.wtf(TAG, "Sizes of packageNamesArray, appSizesArray, appDataSizesArray "
+                        + " and cacheSizesArray are not the same");
             }
 
             proto.end(cachedValuesToken);
diff --git a/services/core/java/com/android/server/storage/AppCollector.java b/services/core/java/com/android/server/storage/AppCollector.java
index 03b754f..0b51f9c 100644
--- a/services/core/java/com/android/server/storage/AppCollector.java
+++ b/services/core/java/com/android/server/storage/AppCollector.java
@@ -135,7 +135,7 @@
                                 PackageStats packageStats = new PackageStats(app.packageName,
                                         user.id);
                                 packageStats.cacheSize = storageStats.getCacheBytes();
-                                packageStats.codeSize = storageStats.getCodeBytes();
+                                packageStats.codeSize = storageStats.getAppBytes();
                                 packageStats.dataSize = storageStats.getDataBytes();
                                 stats.add(packageStats);
                             } catch (NameNotFoundException | IOException e) {
diff --git a/services/core/java/com/android/server/storage/DiskStatsFileLogger.java b/services/core/java/com/android/server/storage/DiskStatsFileLogger.java
index 0094ab5..1db3ec4 100644
--- a/services/core/java/com/android/server/storage/DiskStatsFileLogger.java
+++ b/services/core/java/com/android/server/storage/DiskStatsFileLogger.java
@@ -56,10 +56,12 @@
     public static final String SYSTEM_KEY = "systemSize";
     public static final String MISC_KEY = "otherSize";
     public static final String APP_SIZE_AGG_KEY = "appSize";
+    public static final String APP_DATA_SIZE_AGG_KEY = "appDataSize";
     public static final String APP_CACHE_AGG_KEY = "cacheSize";
     public static final String PACKAGE_NAMES_KEY = "packageNames";
     public static final String APP_SIZES_KEY = "appSizes";
     public static final String APP_CACHES_KEY = "cacheSizes";
+    public static final String APP_DATA_KEY = "appDataSizes";
     public static final String LAST_QUERY_TIMESTAMP_KEY = "queryTime";
 
     private MeasurementResult mResult;
@@ -114,31 +116,39 @@
     private void addAppsToJson(JSONObject json) throws JSONException {
         JSONArray names = new JSONArray();
         JSONArray appSizeList = new JSONArray();
+        JSONArray appDataSizeList = new JSONArray();
         JSONArray cacheSizeList = new JSONArray();
 
         long appSizeSum = 0L;
+        long appDataSizeSum = 0L;
         long cacheSizeSum = 0L;
         boolean isExternal = Environment.isExternalStorageEmulated();
         for (Map.Entry<String, PackageStats> entry : filterOnlyPrimaryUser().entrySet()) {
             PackageStats stat = entry.getValue();
-            long appSize = stat.codeSize + stat.dataSize;
+            long appSize = stat.codeSize;
+            long appDataSize = stat.dataSize;
             long cacheSize = stat.cacheSize;
             if (isExternal) {
-                appSize += stat.externalCodeSize + stat.externalDataSize;
+                appSize += stat.externalCodeSize;
+                appDataSize += stat.externalDataSize;
                 cacheSize += stat.externalCacheSize;
             }
             appSizeSum += appSize;
+            appDataSizeSum += appDataSize;
             cacheSizeSum += cacheSize;
 
             names.put(stat.packageName);
             appSizeList.put(appSize);
+            appDataSizeList.put(appDataSize);
             cacheSizeList.put(cacheSize);
         }
         json.put(PACKAGE_NAMES_KEY, names);
         json.put(APP_SIZES_KEY, appSizeList);
         json.put(APP_CACHES_KEY, cacheSizeList);
+        json.put(APP_DATA_KEY, appDataSizeList);
         json.put(APP_SIZE_AGG_KEY, appSizeSum);
         json.put(APP_CACHE_AGG_KEY, cacheSizeSum);
+        json.put(APP_DATA_SIZE_AGG_KEY, appDataSizeSum);
     }
 
     /**
diff --git a/services/tests/servicestests/src/com/android/server/storage/DiskStatsLoggingServiceTest.java b/services/tests/servicestests/src/com/android/server/storage/DiskStatsLoggingServiceTest.java
index 375edf3..b647b99 100644
--- a/services/tests/servicestests/src/com/android/server/storage/DiskStatsLoggingServiceTest.java
+++ b/services/tests/servicestests/src/com/android/server/storage/DiskStatsLoggingServiceTest.java
@@ -149,11 +149,13 @@
         assertThat(json.getLong(DiskStatsFileLogger.DOWNLOADS_KEY)).isEqualTo(3L);
         assertThat(json.getLong(DiskStatsFileLogger.SYSTEM_KEY)).isEqualTo(10L);
         assertThat(json.getLong(DiskStatsFileLogger.MISC_KEY)).isEqualTo(7L);
-        assertThat(json.getLong(DiskStatsFileLogger.APP_SIZE_AGG_KEY)).isEqualTo(15L);
+        assertThat(json.getLong(DiskStatsFileLogger.APP_SIZE_AGG_KEY)).isEqualTo(10L);
+        assertThat(json.getLong(DiskStatsFileLogger.APP_DATA_SIZE_AGG_KEY)).isEqualTo(5L);
         assertThat(json.getLong(DiskStatsFileLogger.APP_CACHE_AGG_KEY)).isEqualTo(55L);
         assertThat(
                 json.getJSONArray(DiskStatsFileLogger.PACKAGE_NAMES_KEY).length()).isEqualTo(1L);
         assertThat(json.getJSONArray(DiskStatsFileLogger.APP_SIZES_KEY).length()).isEqualTo(1L);
+        assertThat(json.getJSONArray(DiskStatsFileLogger.APP_DATA_KEY).length()).isEqualTo(1L);
         assertThat(json.getJSONArray(DiskStatsFileLogger.APP_CACHES_KEY).length()).isEqualTo(1L);
     }