Merge "sched: Add checks for frequency change" (a07b1164) · Commits · e / devices / android_kernel_sony_msm8994

kernel/sched/core.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -6777,6 +6777,10 @@ done:
		fail:
		double_rq_unlock(rq_src, rq_dest);
		raw_spin_unlock(&p->pi_lock);
		if (moved && !same_freq_domain(src_cpu, dest_cpu)) {
		check_for_freq_change(rq_src);
		check_for_freq_change(rq_dest);
		}
		if (moved && task_notify_on_migrate(p)) {
		struct migration_notify_data mnd;

+14 −3

Original line number	Diff line number	Diff line
		@@ -6718,6 +6718,7 @@ static int active_load_balance_cpu_stop(void *data)
		.flags = 0,
		.loop = 0,
		};
		bool moved = false;

		raw_spin_lock_irq(&busiest_rq->lock);

		@@ -6747,8 +6748,10 @@ static int active_load_balance_cpu_stop(void *data)
		if (push_task) {
		if (push_task->on_rq && push_task->state == TASK_RUNNING &&
		task_cpu(push_task) == busiest_cpu &&
		cpu_online(target_cpu))
		cpu_online(target_cpu)) {
		move_task(push_task, &env);
		moved = true;
		}
		goto out_unlock_balance;
		}

		@@ -6764,11 +6767,13 @@ static int active_load_balance_cpu_stop(void *data)
		env.sd = sd;
		schedstat_inc(sd, alb_count);

		if (move_one_task(&env))
		if (move_one_task(&env)) {
		schedstat_inc(sd, alb_pushed);
		else
		moved = true;
		} else {
		schedstat_inc(sd, alb_failed);
		}
		}
		rcu_read_unlock();
		out_unlock_balance:
		double_unlock_balance(busiest_rq, target_rq);
		@@ -6782,6 +6787,12 @@ out_unlock:
		busiest_rq->push_task = NULL;
		}
		raw_spin_unlock_irq(&busiest_rq->lock);

		if (moved && !same_freq_domain(busiest_cpu, target_cpu)) {
		check_for_freq_change(busiest_rq);
		check_for_freq_change(target_rq);
		}

		if (per_cpu(dbs_boost_needed, target_cpu)) {
		struct migration_notify_data mnd;