Merge "sched: Improve the scheduler" (79fe7870) · Commits · e / devices / android_kernel_fairphone_FP5

kernel/sched/rt.c

+17 −2

Original line number	Diff line number	Diff line
		@@ -1830,6 +1830,7 @@ static int rt_energy_aware_wake_cpu(struct task_struct *task)
		int best_cpu_idle_idx = INT_MAX;
		int cpu_idle_idx = -1;
		bool boost_on_big = rt_boost_on_big();
		bool best_cpu_lt = true;

		rcu_read_lock();

		@@ -1856,6 +1857,7 @@ static int rt_energy_aware_wake_cpu(struct task_struct *task)
		}

		for_each_cpu_and(cpu, lowest_mask, sched_group_span(sg)) {
		bool lt;

		trace_sched_cpu_util(cpu);

		@@ -1870,8 +1872,20 @@ static int rt_energy_aware_wake_cpu(struct task_struct *task)

		util = cpu_util(cpu);

		/* Find the least loaded CPU */
		if (util > best_cpu_util)
		lt = (walt_low_latency_task(cpu_rq(cpu)->curr) \|\|
		walt_nr_rtg_high_prio(cpu));

		/*
		* When the best is suitable and the current is not,
		* skip it
		*/
		if (lt && !best_cpu_lt)
		continue;
		/*
		* Either both are sutilable or unsuitable, load takes
		* precedence.
		*/
		if (!(best_cpu_lt ^ lt) && (util > best_cpu_util))
		continue;

		/*
		@@ -1905,6 +1919,7 @@ static int rt_energy_aware_wake_cpu(struct task_struct *task)
		best_cpu_util = util;
		best_cpu = cpu;
		best_capacity = capacity_orig;
		best_cpu_lt = lt;
		}

		} while (sg = sg->next, sg != sd->groups);