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Commit 702cec97 authored by Maria Yu's avatar Maria Yu Committed by blong
Browse files

sched/walt: Avoid walt irq work in offlined cpu 



Avoid walt irq work in offlined cpu.

Change-Id: Ia4410562f66bfa57daa15d8c0a785a2c7a95f2a0
Signed-off-by: default avatarMaria Yu <aiquny@codeaurora.org>
parent 08be99e8

kernel/sched/sched.h

+10 −0
Original line number Diff line number Diff line
@@ -2975,3 +2975,13 @@ find_first_cpu_bit(struct task_struct *p, const cpumask_t *search_cpus, 
#else

#define find_first_cpu_bit(...) -1

#endif



#ifdef CONFIG_SMP

static inline void sched_irq_work_queue(struct irq_work *work)

{

	if (likely(cpu_online(raw_smp_processor_id())))

		irq_work_queue(work);

	else

		irq_work_queue_on(work, cpumask_any(cpu_online_mask));

}

#endif

kernel/sched/walt.c

+2 −2
Original line number Diff line number Diff line
@@ -893,7 +893,7 @@ void fixup_busy_time(struct task_struct *p, int new_cpu) 
	if (!same_freq_domain(new_cpu, task_cpu(p))) {

		src_rq->notif_pending = true;

		dest_rq->notif_pending = true;

		irq_work_queue(&walt_migration_irq_work);

		sched_irq_work_queue(&walt_migration_irq_work);

	}



	if (p == src_rq->ed_task) {
@@ -1956,7 +1956,7 @@ static inline void run_walt_irq_work(u64 old_window_start, struct rq *rq) 
	result = atomic64_cmpxchg(&walt_irq_work_lastq_ws, old_window_start,

				   rq->window_start);

	if (result == old_window_start)

		irq_work_queue(&walt_cpufreq_irq_work);

		sched_irq_work_queue(&walt_cpufreq_irq_work);

}



/* Reflect task activity on its demand and cpu's busy time statistics */