Merge "Ensure that binder incalls to the system process keep the fg cgroup"

            mCallingPid = tr.sender_pid;

            mCallingUid = tr.sender_euid;

            bool doBackground = !gDisableBackgroundScheduling &&

                    getpriority(PRIO_PROCESS, mMyThreadId)

                            >= ANDROID_PRIORITY_BACKGROUND;

            if (doBackground) {

                // We have inherited a background priority from the caller.

            int curPrio = getpriority(PRIO_PROCESS, mMyThreadId);

            if (gDisableBackgroundScheduling) {

                if (curPrio > ANDROID_PRIORITY_NORMAL) {

                    // We have inherited a reduced priority from the caller, but do not

                    // want to run in that state in this process.  The driver set our

                    // priority already (though not our scheduling class), so bounce

                    // it back to the default before invoking the transaction.

                    setpriority(PRIO_PROCESS, mMyThreadId, ANDROID_PRIORITY_NORMAL);

                }

            } else {

                if (curPrio >= ANDROID_PRIORITY_BACKGROUND) {

                    // We want to use the inherited priority from the caller.

                    // Ensure this thread is in the background scheduling class,

                    // since the driver won't modify scheduling classes for us.

                    // The scheduling group is reset to default by the caller

                    // once this method returns after the transaction is complete.

                    androidSetThreadSchedulingGroup(mMyThreadId,

                                                    ANDROID_TGROUP_BG_NONINTERACT);

                }

            }

            //LOGI(">>>> TRANSACT from pid %d uid %d\n", mCallingPid, mCallingUid);

            mCallingPid = origPid;

            mCallingUid = origUid;

            if (doBackground) {

                // We moved to the background scheduling group to execute

                // this transaction, so now that we are done go back in the

                // foreground.

                androidSetThreadSchedulingGroup(mMyThreadId, ANDROID_TGROUP_DEFAULT);

            }

            IF_LOG_TRANSACTIONS() {

                TextOutput::Bundle _b(alog);

                alog << "BC_REPLY thr " << (void*)pthread_self() << " / obj "