Add /metadata info on dumpsys diskstats and StatsPullAtomService

Bug: 208676063
Test: manual tests
Change-Id: Ice3b706222aa1f77beadb1b9f4ae93f0d796a0b0

4 files changed, 19 insertions, 0 deletions

diff --git a/core/java/android/os/Environment.java b/core/java/android/os/Environment.java
index 2ed0bad69460..2f2f65bbe9d2 100644
--- a/core/java/android/os/Environment.java
+++ b/core/java/android/os/Environment.java
@@ -101,6 +101,7 @@ public class Environment {
     private static final File DIR_ANDROID_EXPAND = getDirectory(ENV_ANDROID_EXPAND, "/mnt/expand");
     private static final File DIR_ANDROID_STORAGE = getDirectory(ENV_ANDROID_STORAGE, "/storage");
     private static final File DIR_DOWNLOAD_CACHE = getDirectory(ENV_DOWNLOAD_CACHE, "/cache");
+    private static final File DIR_METADATA = new File("/metadata");
     private static final File DIR_OEM_ROOT = getDirectory(ENV_OEM_ROOT, "/oem");
     private static final File DIR_ODM_ROOT = getDirectory(ENV_ODM_ROOT, "/odm");
     private static final File DIR_VENDOR_ROOT = getDirectory(ENV_VENDOR_ROOT, "/vendor");
@@ -1102,6 +1103,15 @@ public class Environment {
     }
 
     /**
+     * Return the metadata directory.
+     *
+     * @hide
+     */
+    public static @NonNull File getMetadataDirectory() {
+        return DIR_METADATA;
+    }
+
+    /**
      * Unknown storage state, such as when a path isn't backed by known storage
      * media.
      *
diff --git a/core/proto/android/service/diskstats.proto b/core/proto/android/service/diskstats.proto
index f79de394a50f..ad3d67346292 100644
--- a/core/proto/android/service/diskstats.proto
+++ b/core/proto/android/service/diskstats.proto
@@ -99,6 +99,8 @@ message DiskStatsFreeSpaceProto {
         FOLDER_CACHE = 1;
         // System folder
         FOLDER_SYSTEM = 2;
+        // Metadata folder
+        FOLDER_METADATA = 3;
     }
     // Which folder?
     optional Folder folder = 1;
diff --git a/services/core/java/com/android/server/DiskStatsService.java b/services/core/java/com/android/server/DiskStatsService.java
index 8ea3dd64697e..1095ba31069f 100644
--- a/services/core/java/com/android/server/DiskStatsService.java
+++ b/services/core/java/com/android/server/DiskStatsService.java
@@ -125,6 +125,8 @@ public class DiskStatsService extends Binder {
                 DiskStatsFreeSpaceProto.FOLDER_CACHE);
         reportFreeSpace(new File("/system"), "System", pw, proto,
                 DiskStatsFreeSpaceProto.FOLDER_SYSTEM);
+        reportFreeSpace(Environment.getMetadataDirectory(), "Metadata", pw, proto,
+                DiskStatsFreeSpaceProto.FOLDER_METADATA);
 
         boolean fileBased = StorageManager.isFileEncryptedNativeOnly();
         boolean blockBased = fileBased ? false : StorageManager.isBlockEncrypted();
diff --git a/services/core/java/com/android/server/stats/pull/StatsPullAtomService.java b/services/core/java/com/android/server/stats/pull/StatsPullAtomService.java
index 1fa948cef216..9cf38e3ca92f 100644
--- a/services/core/java/com/android/server/stats/pull/StatsPullAtomService.java
+++ b/services/core/java/com/android/server/stats/pull/StatsPullAtomService.java
@@ -2609,6 +2609,7 @@ public class StatsPullAtomService extends SystemService {
         StatFs statFsData = new StatFs(Environment.getDataDirectory().getAbsolutePath());
         StatFs statFsSystem = new StatFs(Environment.getRootDirectory().getAbsolutePath());
         StatFs statFsCache = new StatFs(Environment.getDownloadCacheDirectory().getAbsolutePath());
+        StatFs metadataFsSystem = new StatFs(Environment.getMetadataDirectory().getAbsolutePath());
 
         pulledData.add(FrameworkStatsLog.buildStatsEvent(atomTag,
                 FrameworkStatsLog.DIRECTORY_USAGE__DIRECTORY__DATA, statFsData.getAvailableBytes(),
@@ -2621,6 +2622,10 @@ public class StatsPullAtomService extends SystemService {
         pulledData.add(FrameworkStatsLog.buildStatsEvent(atomTag,
                 FrameworkStatsLog.DIRECTORY_USAGE__DIRECTORY__SYSTEM,
                 statFsSystem.getAvailableBytes(), statFsSystem.getTotalBytes()));
+
+        pulledData.add(FrameworkStatsLog.buildStatsEvent(atomTag,
+                FrameworkStatsLog.DIRECTORY_USAGE__DIRECTORY__METADATA,
+                metadataFsSystem.getAvailableBytes(), metadataFsSystem.getTotalBytes()));
         return StatsManager.PULL_SUCCESS;
     }