From eda5d5183e5bc0fc63027b77b7dfd7d407bf22d6 Mon Sep 17 00:00:00 2001
From: Jeff Sharkey <jsharkey@android.com>
Date: Mon, 16 Jan 2017 19:19:27 -0700
Subject: [PATCH] Only persist category hint when actually mutated.

Otherwise we're churning disk.

Test: builds, boots
Bug: 34328134
Change-Id: Iabc485b9ce3644e914240b5de5bcea98d939b2cb
---
 .../java/com/android/server/pm/PackageManagerService.java   | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/services/core/java/com/android/server/pm/PackageManagerService.java b/services/core/java/com/android/server/pm/PackageManagerService.java
index c9c855b30a298..dc551556ef6ff 100644
--- a/services/core/java/com/android/server/pm/PackageManagerService.java
+++ b/services/core/java/com/android/server/pm/PackageManagerService.java
@@ -13018,8 +13018,10 @@ public class PackageManagerService extends IPackageManager.Stub {
                         + " is not installer for " + packageName);
             }
 
-            ps.categoryHint = categoryHint;
-            scheduleWriteSettingsLocked();
+            if (ps.categoryHint != categoryHint) {
+                ps.categoryHint = categoryHint;
+                scheduleWriteSettingsLocked();
+            }
         }
     }