Merge "Include oom_adjust reason in trace" into qt-dev

6 files changed, 77 insertions, 51 deletions

diff --git a/services/core/java/com/android/server/am/ActiveServices.java b/services/core/java/com/android/server/am/ActiveServices.java
index 4ec90ba5b803..0271354b3fff 100644
--- a/services/core/java/com/android/server/am/ActiveServices.java
+++ b/services/core/java/com/android/server/am/ActiveServices.java
@@ -1806,7 +1806,7 @@ public final class ActiveServices {
                                 || (callerApp.getCurProcState() <= ActivityManager.PROCESS_STATE_TOP
                                         && (flags & Context.BIND_TREAT_LIKE_ACTIVITY) != 0),
                         b.client);
-                mAm.updateOomAdjLocked();
+                mAm.updateOomAdjLocked(OomAdjuster.OOM_ADJ_REASON_BIND_SERVICE);
             }
 
             if (DEBUG_SERVICE) Slog.v(TAG_SERVICE, "Bind " + s + " with " + b
@@ -1957,11 +1957,12 @@ public final class ActiveServices {
                                 r.binding.service.app.hasClientActivities()
                                 || r.binding.service.app.treatLikeActivity, null);
                     }
-                    mAm.updateOomAdjLocked(r.binding.service.app, false);
+                    mAm.updateOomAdjLocked(r.binding.service.app, false,
+                            OomAdjuster.OOM_ADJ_REASON_UNBIND_SERVICE);
                 }
             }
 
-            mAm.updateOomAdjLocked();
+            mAm.updateOomAdjLocked(OomAdjuster.OOM_ADJ_REASON_UNBIND_SERVICE);
 
         } finally {
             Binder.restoreCallingIdentity(origId);
@@ -2676,7 +2677,7 @@ public final class ActiveServices {
         bumpServiceExecutingLocked(r, execInFg, "create");
         mAm.updateLruProcessLocked(app, false, null);
         updateServiceForegroundLocked(r.app, /* oomAdj= */ false);
-        mAm.updateOomAdjLocked();
+        mAm.updateOomAdjLocked(OomAdjuster.OOM_ADJ_REASON_START_SERVICE);
 
         boolean created = false;
         try {
@@ -2797,7 +2798,7 @@ public final class ActiveServices {
             bumpServiceExecutingLocked(r, execInFg, "start");
             if (!oomAdjusted) {
                 oomAdjusted = true;
-                mAm.updateOomAdjLocked(r.app, true);
+                mAm.updateOomAdjLocked(r.app, true, OomAdjuster.OOM_ADJ_REASON_START_SERVICE);
             }
             if (r.fgRequired && !r.fgWaiting) {
                 if (!r.isForeground) {
@@ -2923,7 +2924,8 @@ public final class ActiveServices {
                 if (ibr.hasBound) {
                     try {
                         bumpServiceExecutingLocked(r, false, "bring down unbind");
-                        mAm.updateOomAdjLocked(r.app, true);
+                        mAm.updateOomAdjLocked(r.app, true,
+                                OomAdjuster.OOM_ADJ_REASON_UNBIND_SERVICE);
                         ibr.hasBound = false;
                         ibr.requested = false;
                         r.app.thread.scheduleUnbindService(r,
@@ -3038,7 +3040,8 @@ public final class ActiveServices {
                     bumpServiceExecutingLocked(r, false, "destroy");
                     mDestroyingServices.add(r);
                     r.destroying = true;
-                    mAm.updateOomAdjLocked(r.app, true);
+                    mAm.updateOomAdjLocked(r.app, true,
+                            OomAdjuster.OOM_ADJ_REASON_UNBIND_SERVICE);
                     r.app.thread.scheduleStopService(r);
                 } catch (Exception e) {
                     Slog.w(TAG, "Exception when destroying service "
@@ -3143,7 +3146,8 @@ public final class ActiveServices {
                         // it to go down there and we want it to start out near the top.
                         mAm.updateLruProcessLocked(s.app, false, null);
                     }
-                    mAm.updateOomAdjLocked(s.app, true);
+                    mAm.updateOomAdjLocked(s.app, true,
+                            OomAdjuster.OOM_ADJ_REASON_UNBIND_SERVICE);
                     b.intent.hasBound = false;
                     // Assume the client doesn't want to know about a rebind;
                     // we will deal with that later if it asks for one.
@@ -3296,7 +3300,7 @@ public final class ActiveServices {
                     mDestroyingServices.remove(r);
                     r.bindings.clear();
                 }
-                mAm.updateOomAdjLocked(r.app, true);
+                mAm.updateOomAdjLocked(r.app, true, OomAdjuster.OOM_ADJ_REASON_UNBIND_SERVICE);
             }
             r.executeFg = false;
             if (r.tracker != null) {
diff --git a/services/core/java/com/android/server/am/ActivityManagerService.java b/services/core/java/com/android/server/am/ActivityManagerService.java
index 3b6b404170c5..cdcd9e1ad58c 100644
--- a/services/core/java/com/android/server/am/ActivityManagerService.java
+++ b/services/core/java/com/android/server/am/ActivityManagerService.java
@@ -1972,7 +1972,7 @@ public class ActivityManagerService extends IActivityManager.Stub
                 app.makeActive(mSystemThread.getApplicationThread(), mProcessStats);
                 mPidsSelfLocked.put(app.pid, app);
                 mProcessList.updateLruProcessLocked(app, false, null);
-                updateOomAdjLocked();
+                updateOomAdjLocked(OomAdjuster.OOM_ADJ_REASON_NONE);
             }
         } catch (PackageManager.NameNotFoundException e) {
             throw new RuntimeException(
@@ -2456,7 +2456,7 @@ public class ActivityManagerService extends IActivityManager.Stub
         // bind background threads to little cores
         // this is expected to fail inside of framework tests because apps can't touch cpusets directly
         // make sure we've already adjusted system_server's internal view of itself first
-        updateOomAdjLocked();
+        updateOomAdjLocked(OomAdjuster.OOM_ADJ_REASON_NONE);
         try {
             Process.setThreadGroupAndCpuset(BackgroundThread.get().getThreadId(),
                     Process.THREAD_GROUP_SYSTEM);
@@ -3634,7 +3634,7 @@ public class ActivityManagerService extends IActivityManager.Stub
             handleAppDiedLocked(app, false, true);
 
             if (doOomAdj) {
-                updateOomAdjLocked();
+                updateOomAdjLocked(OomAdjuster.OOM_ADJ_REASON_PROCESS_END);
             }
             if (doLowMem) {
                 doLowMemReportIfNeededLocked(app);
@@ -5002,7 +5002,7 @@ public class ActivityManagerService extends IActivityManager.Stub
         }
 
         if (!didSomething) {
-            updateOomAdjLocked();
+            updateOomAdjLocked(OomAdjuster.OOM_ADJ_REASON_PROCESS_BEGIN);
             checkTime(startTime, "attachApplicationLocked: after updateOomAdjLocked");
         }
 
@@ -5485,7 +5485,7 @@ public class ActivityManagerService extends IActivityManager.Stub
         synchronized (this) {
             mConstants.setOverrideMaxCachedProcesses(max);
         }
-        trimApplications();
+        trimApplications(OomAdjuster.OOM_ADJ_REASON_PROCESS_END);
     }
 
     @Override
@@ -5511,7 +5511,7 @@ public class ActivityManagerService extends IActivityManager.Stub
                 pr.forcingToImportant = null;
                 updateProcessForegroundLocked(pr, false, 0, false);
             }
-            updateOomAdjLocked();
+            updateOomAdjLocked(OomAdjuster.OOM_ADJ_REASON_UI_VISIBILITY);
         }
     }
 
@@ -5557,7 +5557,7 @@ public class ActivityManagerService extends IActivityManager.Stub
             }
 
             if (changed) {
-                updateOomAdjLocked();
+                updateOomAdjLocked(OomAdjuster.OOM_ADJ_REASON_UI_VISIBILITY);
             }
         }
     }
@@ -6714,7 +6714,8 @@ public class ActivityManagerService extends IActivityManager.Stub
 
                 checkTime(startTime, "getContentProviderImpl: before updateOomAdj");
                 final int verifiedAdj = cpr.proc.verifiedAdj;
-                boolean success = updateOomAdjLocked(cpr.proc, true);
+                boolean success = updateOomAdjLocked(cpr.proc, true,
+                        OomAdjuster.OOM_ADJ_REASON_GET_PROVIDER);
                 // XXX things have changed so updateOomAdjLocked doesn't actually tell us
                 // if the process has been successfully adjusted.  So to reduce races with
                 // it, we will check whether the process still exists.  Note that this doesn't
@@ -7147,7 +7148,7 @@ public class ActivityManagerService extends IActivityManager.Stub
                     throw new NullPointerException("connection is null");
                 }
                 if (decProviderCountLocked(conn, null, null, stable)) {
-                    updateOomAdjLocked();
+                    updateOomAdjLocked(OomAdjuster.OOM_ADJ_REASON_REMOVE_PROVIDER);
                 }
             }
         } finally {
@@ -7188,7 +7189,7 @@ public class ActivityManagerService extends IActivityManager.Stub
             ContentProviderRecord localCpr = mProviderMap.getProviderByClass(comp, userId);
             if (localCpr.hasExternalProcessHandles()) {
                 if (localCpr.removeExternalProcessHandleLocked(token)) {
-                    updateOomAdjLocked();
+                    updateOomAdjLocked(OomAdjuster.OOM_ADJ_REASON_REMOVE_PROVIDER);
                 } else {
                     Slog.e(TAG, "Attmpt to remove content provider " + localCpr
                             + " with no external reference for token: "
@@ -7255,7 +7256,7 @@ public class ActivityManagerService extends IActivityManager.Stub
                         dst.setProcess(r);
                         dst.notifyAll();
                     }
-                    updateOomAdjLocked(r, true);
+                    updateOomAdjLocked(r, true, OomAdjuster.OOM_ADJ_REASON_GET_PROVIDER);
                     maybeUpdateProviderUsageStatsLocked(r, src.info.packageName,
                             src.info.authority);
                 }
@@ -7645,7 +7646,7 @@ public class ActivityManagerService extends IActivityManager.Stub
                     new HostingRecord("added application",
                             customProcess != null ? customProcess : info.processName));
             mProcessList.updateLruProcessLocked(app, false, null);
-            updateOomAdjLocked();
+            updateOomAdjLocked(OomAdjuster.OOM_ADJ_REASON_PROCESS_BEGIN);
         }
 
         // This package really, really can not be stopped.
@@ -7740,7 +7741,7 @@ public class ActivityManagerService extends IActivityManager.Stub
                 mActivityTaskManager.onScreenAwakeChanged(isAwake);
                 mOomAdjProfiler.onWakefulnessChanged(wakefulness);
             }
-            updateOomAdjLocked();
+            updateOomAdjLocked(OomAdjuster.OOM_ADJ_REASON_UI_VISIBILITY);
         }
     }
 
@@ -8320,7 +8321,7 @@ public class ActivityManagerService extends IActivityManager.Stub
                     }
                 }
                 if (changed) {
-                    updateOomAdjLocked(pr, true);
+                    updateOomAdjLocked(pr, true, OomAdjuster.OOM_ADJ_REASON_UI_VISIBILITY);
                 }
             }
         } finally {
@@ -8350,7 +8351,7 @@ public class ActivityManagerService extends IActivityManager.Stub
                 Slog.i(TAG, "Setting runningRemoteAnimation=" + pr.runningRemoteAnimation
                         + " for pid=" + pid);
             }
-            updateOomAdjLocked(pr, true);
+            updateOomAdjLocked(pr, true, OomAdjuster.OOM_ADJ_REASON_UI_VISIBILITY);
         }
     }
 
@@ -13984,7 +13985,7 @@ public class ActivityManagerService extends IActivityManager.Stub
             mBackupTargets.put(targetUserId, r);
 
             // Try not to kill the process during backup
-            updateOomAdjLocked(proc, true);
+            updateOomAdjLocked(proc, true, OomAdjuster.OOM_ADJ_REASON_NONE);
 
             // If the process is already attached, schedule the creation of the backup agent now.
             // If it is not yet live, this will be done when it attaches to the framework.
@@ -14099,7 +14100,7 @@ public class ActivityManagerService extends IActivityManager.Stub
 
                 // Not backing this app up any more; reset its OOM adjustment
                 final ProcessRecord proc = backupTarget.app;
-                updateOomAdjLocked(proc, true);
+                updateOomAdjLocked(proc, true, OomAdjuster.OOM_ADJ_REASON_NONE);
                 proc.inFullBackup = false;
 
                 oldBackupUid = backupTarget != null ? backupTarget.appInfo.uid : -1;
@@ -14388,7 +14389,7 @@ public class ActivityManagerService extends IActivityManager.Stub
             // If we actually concluded any broadcasts, we might now be able
             // to trim the recipients' apps from our working set
             if (doTrim) {
-                trimApplications();
+                trimApplications(OomAdjuster.OOM_ADJ_REASON_FINISH_RECEIVER);
                 return;
             }
 
@@ -15463,7 +15464,7 @@ public class ActivityManagerService extends IActivityManager.Stub
                     r.queue.processNextBroadcastLocked(/*fromMsg=*/ false, /*skipOomAdj=*/ true);
                 }
                 // updateOomAdjLocked() will be done here
-                trimApplicationsLocked();
+                trimApplicationsLocked(OomAdjuster.OOM_ADJ_REASON_FINISH_RECEIVER);
             }
 
         } finally {
@@ -16448,7 +16449,7 @@ public class ActivityManagerService extends IActivityManager.Stub
             item.foregroundServiceTypes = fgServiceTypes;
 
             if (oomAdj) {
-                updateOomAdjLocked();
+                updateOomAdjLocked(OomAdjuster.OOM_ADJ_REASON_UI_VISIBILITY);
             }
         }
     }
@@ -16496,11 +16497,13 @@ public class ActivityManagerService extends IActivityManager.Stub
      * @param app The process to update
      * @param oomAdjAll If it's ok to call updateOomAdjLocked() for all running apps
      *                  if necessary, or skip.
+     * @param oomAdjReason
      * @return whether updateOomAdjLocked(app) was successful.
      */
     @GuardedBy("this")
-    final boolean updateOomAdjLocked(ProcessRecord app, boolean oomAdjAll) {
-        return mOomAdjuster.updateOomAdjLocked(app, oomAdjAll);
+    final boolean updateOomAdjLocked(ProcessRecord app, boolean oomAdjAll,
+            String oomAdjReason) {
+        return mOomAdjuster.updateOomAdjLocked(app, oomAdjAll, oomAdjReason);
     }
 
     static final class ProcStatsRunnable implements Runnable {
@@ -16693,8 +16696,8 @@ public class ActivityManagerService extends IActivityManager.Stub
     }
 
     @GuardedBy("this")
-    final void updateOomAdjLocked() {
-        mOomAdjuster.updateOomAdjLocked();
+    final void updateOomAdjLocked(String oomAdjReason) {
+        mOomAdjuster.updateOomAdjLocked(oomAdjReason);
     }
 
     @Override
@@ -16979,14 +16982,14 @@ public class ActivityManagerService extends IActivityManager.Stub
         mOomAdjuster.setUidTempWhitelistStateLocked(uid, onWhitelist);
     }
 
-    final void trimApplications() {
+    final void trimApplications(String oomAdjReason) {
         synchronized (this) {
-            trimApplicationsLocked();
+            trimApplicationsLocked(oomAdjReason);
         }
     }
 
     @GuardedBy("this")
-    final void trimApplicationsLocked() {
+    final void trimApplicationsLocked(String oomAdjReason) {
         // First remove any unused application processes whose package
         // has been removed.
         for (int i = mProcessList.mRemovedProcesses.size() - 1; i >= 0; i--) {
@@ -17018,7 +17021,7 @@ public class ActivityManagerService extends IActivityManager.Stub
 
         // Now update the oom adj for all processes. Don't skip this, since other callers
         // might be depending on it.
-        updateOomAdjLocked();
+        updateOomAdjLocked(oomAdjReason);
     }
 
     /** This method sends the specified signal to each of the persistent apps */
@@ -17627,7 +17630,7 @@ public class ActivityManagerService extends IActivityManager.Stub
                 }
                 pr.setHasOverlayUi(hasOverlayUi);
                 //Slog.i(TAG, "Setting hasOverlayUi=" + pr.hasOverlayUi + " for pid=" + pid);
-                updateOomAdjLocked(pr, true);
+                updateOomAdjLocked(pr, true, OomAdjuster.OOM_ADJ_REASON_UI_VISIBILITY);
             }
         }
 
@@ -17784,7 +17787,7 @@ public class ActivityManagerService extends IActivityManager.Stub
 
         @Override
         public void trimApplications() {
-            ActivityManagerService.this.trimApplications();
+            ActivityManagerService.this.trimApplications(OomAdjuster.OOM_ADJ_REASON_ACTIVITY);
         }
 
         public void killProcessesForRemovedTask(ArrayList<Object> procsToKill) {
@@ -17836,7 +17839,7 @@ public class ActivityManagerService extends IActivityManager.Stub
         @Override
         public void updateOomAdj() {
             synchronized (ActivityManagerService.this) {
-                ActivityManagerService.this.updateOomAdjLocked();
+                ActivityManagerService.this.updateOomAdjLocked(OomAdjuster.OOM_ADJ_REASON_NONE);
             }
         }
 
diff --git a/services/core/java/com/android/server/am/BroadcastQueue.java b/services/core/java/com/android/server/am/BroadcastQueue.java
index 3c57c3bcb7d6..ee9b5614584f 100644
--- a/services/core/java/com/android/server/am/BroadcastQueue.java
+++ b/services/core/java/com/android/server/am/BroadcastQueue.java
@@ -309,7 +309,7 @@ public final class BroadcastQueue {
         app.forceProcessStateUpTo(ActivityManager.PROCESS_STATE_RECEIVER);
         mService.mProcessList.updateLruProcessLocked(app, false, null);
         if (!skipOomAdj) {
-            mService.updateOomAdjLocked();
+            mService.updateOomAdjLocked(OomAdjuster.OOM_ADJ_REASON_NONE);
         }
 
         // Tell the application to launch this receiver.
@@ -791,7 +791,8 @@ public final class BroadcastQueue {
                 // are already core system stuff so don't matter for this.
                 r.curApp = filter.receiverList.app;
                 filter.receiverList.app.curReceivers.add(r);
-                mService.updateOomAdjLocked(r.curApp, true);
+                mService.updateOomAdjLocked(r.curApp, true,
+                        OomAdjuster.OOM_ADJ_REASON_START_RECEIVER);
             }
         }
         try {
@@ -1028,7 +1029,7 @@ public final class BroadcastQueue {
                     // If we had finished the last ordered broadcast, then
                     // make sure all processes have correct oom and sched
                     // adjustments.
-                    mService.updateOomAdjLocked();
+                    mService.updateOomAdjLocked(OomAdjuster.OOM_ADJ_REASON_START_RECEIVER);
                 }
 
                 // when we have no more ordered broadcast on this queue, stop logging
diff --git a/services/core/java/com/android/server/am/OomAdjuster.java b/services/core/java/com/android/server/am/OomAdjuster.java
index 44d435f2b539..8ae7c7d3e0c8 100644
--- a/services/core/java/com/android/server/am/OomAdjuster.java
+++ b/services/core/java/com/android/server/am/OomAdjuster.java
@@ -90,6 +90,21 @@ import java.util.Arrays;
 public final class OomAdjuster {
     private static final String TAG = "OomAdjuster";
 
+    static final String OOM_ADJ_REASON_METHOD = "updateOomAdj";
+    static final String OOM_ADJ_REASON_NONE = OOM_ADJ_REASON_METHOD + "_meh";
+    static final String OOM_ADJ_REASON_ACTIVITY = OOM_ADJ_REASON_METHOD + "_activityChange";
+    static final String OOM_ADJ_REASON_FINISH_RECEIVER = OOM_ADJ_REASON_METHOD + "_finishReceiver";
+    static final String OOM_ADJ_REASON_START_RECEIVER = OOM_ADJ_REASON_METHOD + "_startReceiver";
+    static final String OOM_ADJ_REASON_BIND_SERVICE = OOM_ADJ_REASON_METHOD + "_bindService";
+    static final String OOM_ADJ_REASON_UNBIND_SERVICE = OOM_ADJ_REASON_METHOD + "_unbindService";
+    static final String OOM_ADJ_REASON_START_SERVICE = OOM_ADJ_REASON_METHOD + "_startService";
+    static final String OOM_ADJ_REASON_GET_PROVIDER = OOM_ADJ_REASON_METHOD + "_getProvider";
+    static final String OOM_ADJ_REASON_REMOVE_PROVIDER = OOM_ADJ_REASON_METHOD + "_removeProvider";
+    static final String OOM_ADJ_REASON_UI_VISIBILITY = OOM_ADJ_REASON_METHOD + "_uiVisibility";
+    static final String OOM_ADJ_REASON_WHITELIST = OOM_ADJ_REASON_METHOD + "_whitelistChange";
+    static final String OOM_ADJ_REASON_PROCESS_BEGIN = OOM_ADJ_REASON_METHOD + "_processBegin";
+    static final String OOM_ADJ_REASON_PROCESS_END = OOM_ADJ_REASON_METHOD + "_processEnd";
+
     /**
      * For some direct access we need to power manager.
      */
@@ -156,10 +171,12 @@ public final class OomAdjuster {
      * @param app The process to update
      * @param oomAdjAll If it's ok to call updateOomAdjLocked() for all running apps
      *                  if necessary, or skip.
+     * @param oomAdjReason
      * @return whether updateOomAdjLocked(app) was successful.
      */
     @GuardedBy("mService")
-    final boolean updateOomAdjLocked(ProcessRecord app, boolean oomAdjAll) {
+    boolean updateOomAdjLocked(ProcessRecord app, boolean oomAdjAll,
+            String oomAdjReason) {
         final ProcessRecord TOP_APP = mService.getTopAppLocked();
         final boolean wasCached = app.cached;
 
@@ -177,7 +194,7 @@ public final class OomAdjuster {
                 && (wasCached != app.cached || app.getCurRawAdj() == ProcessList.UNKNOWN_ADJ)) {
             // Changed to/from cached state, so apps after it in the LRU
             // list may also be changed.
-            updateOomAdjLocked();
+            updateOomAdjLocked(oomAdjReason);
         }
         return success;
     }
@@ -195,8 +212,8 @@ public final class OomAdjuster {
     }
 
     @GuardedBy("mService")
-    final void updateOomAdjLocked() {
-        Trace.traceBegin(Trace.TRACE_TAG_ACTIVITY_MANAGER, "updateOomAdj");
+    void updateOomAdjLocked(String oomAdjReason) {
+        Trace.traceBegin(Trace.TRACE_TAG_ACTIVITY_MANAGER, oomAdjReason);
         mService.mOomAdjProfiler.oomAdjStarted();
         final ProcessRecord TOP_APP = mService.getTopAppLocked();
         final long now = SystemClock.uptimeMillis();
@@ -2009,7 +2026,7 @@ public final class OomAdjuster {
             }
         }
         if (changed) {
-            updateOomAdjLocked();
+            updateOomAdjLocked(OOM_ADJ_REASON_WHITELIST);
         }
     }
 
@@ -2019,7 +2036,7 @@ public final class OomAdjuster {
         final UidRecord uidRec = mActiveUids.get(uid);
         if (uidRec != null && uidRec.curWhitelist != onWhitelist) {
             uidRec.curWhitelist = onWhitelist;
-            updateOomAdjLocked();
+            updateOomAdjLocked(OOM_ADJ_REASON_WHITELIST);
         }
     }
 
diff --git a/services/core/java/com/android/server/am/ProcessList.java b/services/core/java/com/android/server/am/ProcessList.java
index 0a926f9a801a..316368a52ce2 100644
--- a/services/core/java/com/android/server/am/ProcessList.java
+++ b/services/core/java/com/android/server/am/ProcessList.java
@@ -2227,9 +2227,10 @@ public final class ProcessList {
         for (AppZygote appZygote : zygotesToKill) {
             killAppZygoteIfNeededLocked(appZygote);
         }
-        mService.updateOomAdjLocked();
+        mService.updateOomAdjLocked(OomAdjuster.OOM_ADJ_REASON_PROCESS_END);
         return N > 0;
     }
+
     @GuardedBy("mService")
     boolean removeProcessLocked(ProcessRecord app,
             boolean callerWillRestart, boolean allowRestart, String reason) {
diff --git a/services/core/java/com/android/server/am/ProcessRecord.java b/services/core/java/com/android/server/am/ProcessRecord.java
index 933f41c47167..49930c1f4d62 100644
--- a/services/core/java/com/android/server/am/ProcessRecord.java
+++ b/services/core/java/com/android/server/am/ProcessRecord.java
@@ -1301,7 +1301,7 @@ class ProcessRecord implements WindowProcessListener {
             }
             mService.mProcessList.updateLruProcessLocked(this, activityChange, null /* client */);
             if (updateOomAdj) {
-                mService.updateOomAdjLocked();
+                mService.updateOomAdjLocked(OomAdjuster.OOM_ADJ_REASON_ACTIVITY);
             }
         }
     }