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Commit c944f1e4 authored by Tim Murray's avatar Tim Murray
Browse files

WindowProcessController: optimize locking 

No need to lock if isCached is true. Move to mGlobalLockWithoutBoost to
avoid priority inheritance overhead.

Test: boots, works
Bug: 155924232
Change-Id: Iadf6fb14088a71f21ce015c014516bf07235a96e
parent f7b69012

services/core/java/com/android/server/wm/WindowProcessController.java

+8 −5
Original line number Diff line number Diff line
@@ -1315,15 +1315,18 @@ public class WindowProcessController extends ConfigurationContainer<Configuratio 
     *

     * @param isCached whether or not the process is cached.

     */

    @HotPath(caller = HotPath.OOM_ADJUSTMENT)

    public void onProcCachedStateChanged(boolean isCached) {

        synchronized (mAtm.mGlobalLock) {

            if (!isCached && mPendingConfiguration != null) {

        if (!isCached) {

            synchronized (mAtm.mGlobalLockWithoutBoost) {

                if (mPendingConfiguration != null) {

                    final Configuration config = mPendingConfiguration;

                    mPendingConfiguration = null;

                    dispatchConfigurationChange(config);

                }

            }

        }

    }



    /**

     * Called to notify {@link WindowProcessController} of a started service.