From c9a5e428b3d0b13d055492b28d877a45c087d19d Mon Sep 17 00:00:00 2001
From: Kweku Adams <kwekua@google.com>
Date: Tue, 29 Mar 2022 16:08:45 +0000
Subject: [PATCH] Avoid unnecessary work.

If the pending queue is empty, then we don't need to do all the work of
determining job assignments.

Bug: 141645789
Test: Android builds
Change-Id: I3dfad0ea128580ba7e924b332464b807eb2c403f
---
 .../java/com/android/server/job/JobConcurrencyManager.java   | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/apex/jobscheduler/service/java/com/android/server/job/JobConcurrencyManager.java b/apex/jobscheduler/service/java/com/android/server/job/JobConcurrencyManager.java
index 49ce22224aa5b..549badd5ba826 100644
--- a/apex/jobscheduler/service/java/com/android/server/job/JobConcurrencyManager.java
+++ b/apex/jobscheduler/service/java/com/android/server/job/JobConcurrencyManager.java
@@ -606,6 +606,11 @@ class JobConcurrencyManager {
             Slog.d(TAG, printPendingQueueLocked());
         }
 
+        if (mService.getPendingJobQueue().size() == 0) {
+            // Nothing to do.
+            return;
+        }
+
         final PendingJobQueue pendingJobQueue = mService.getPendingJobQueue();
         final List<JobServiceContext> activeServices = mActiveServices;