Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 1e650f5d authored by Wei Wang's avatar Wei Wang
Browse files

Set reset_on_fork flag for threads in power hint sessions 

This ensures that the power hint session's sched policy is reset when a thread forks.

Bug: 370988407
Test: Build
Flag: com.android.server.power.hint.reset_on_fork_enabled
Change-Id: I8c93d8db870210b152b6441f8b0b6fc9077771c7
parent a90ea9c8

services/core/java/com/android/server/power/hint/HintManagerService.java

+11 −0
Original line number Diff line number Diff line
@@ -21,6 +21,7 @@ import static android.os.Flags.adpfUseFmqChannel; 
import static com.android.internal.util.ConcurrentUtils.DIRECT_EXECUTOR;

import static com.android.server.power.hint.Flags.adpfSessionTag;

import static com.android.server.power.hint.Flags.powerhintThreadCleanup;

import static com.android.server.power.hint.Flags.resetOnForkEnabled;



import android.annotation.NonNull;

import android.annotation.Nullable;
@@ -1057,6 +1058,11 @@ public final class HintManagerService extends SystemService { 
                    Slogf.w(TAG, errMsg);

                    throw new SecurityException(errMsg);

                }

                if (resetOnForkEnabled()){

                    for (int tid : tids) {

                        Process.setThreadScheduler(tid, Process.SCHED_RESET_ON_FORK, 0);

                    }

                }



                if (adpfSessionTag() && tag == SessionTag.APP) {

                    // If the category of the app is a game,
@@ -1447,6 +1453,11 @@ public final class HintManagerService extends SystemService { 
                            Slogf.w(TAG, errMsg);

                            throw new SecurityException(errMsg);

                        }

                        if (resetOnForkEnabled()){

                            for (int tid : tids) {

                                Process.setThreadScheduler(tid, Process.SCHED_RESET_ON_FORK, 0);

                            }

                        }

                        if (powerhintThreadCleanup()) {

                            synchronized (mNonIsolatedTidsLock) {

                                for (int i = nonIsolated.size() - 1; i >= 0; i--) {

services/core/java/com/android/server/power/hint/flags.aconfig

+7 −0
Original line number Diff line number Diff line
@@ -14,3 +14,10 @@ flag { 
    description: "Feature flag for adding session tag to hint session atom"

    bug: "345011125"

}



flag {

    name: "reset_on_fork_enabled"

    namespace: "game"

    description: "Set reset_on_fork flag."

    bug: "370988407"

}