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

Commit 20a5c8cc authored by Thomas Gleixner's avatar Thomas Gleixner
Browse files

sched/fair: Make ilb_notifier an explicit call



No need for an extra notifier.

Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Acked-by: default avatarPeter Zijlstra <peterz@infradead.org>
Cc: rt@linutronix.de
Link: http://lkml.kernel.org/r/20160310120025.693720241@linutronix.de


Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
parent aaddd7d1
Loading
Loading
Loading
Loading
+1 −0
Original line number Diff line number Diff line
@@ -7131,6 +7131,7 @@ int sched_cpu_dying(unsigned int cpu)
	raw_spin_unlock_irqrestore(&rq->lock, flags);
	calc_load_migrate(rq);
	update_max_interval();
	nohz_balance_exit_idle(cpu);
	return 0;
}
#endif
+1 −14
Original line number Diff line number Diff line
@@ -7711,7 +7711,7 @@ static void nohz_balancer_kick(void)
	return;
}

static inline void nohz_balance_exit_idle(int cpu)
void nohz_balance_exit_idle(unsigned int cpu)
{
	if (unlikely(test_bit(NOHZ_TICK_STOPPED, nohz_flags(cpu)))) {
		/*
@@ -7784,18 +7784,6 @@ void nohz_balance_enter_idle(int cpu)
	atomic_inc(&nohz.nr_cpus);
	set_bit(NOHZ_TICK_STOPPED, nohz_flags(cpu));
}

static int sched_ilb_notifier(struct notifier_block *nfb,
					unsigned long action, void *hcpu)
{
	switch (action & ~CPU_TASKS_FROZEN) {
	case CPU_DYING:
		nohz_balance_exit_idle(smp_processor_id());
		return NOTIFY_OK;
	default:
		return NOTIFY_DONE;
	}
}
#endif

static DEFINE_SPINLOCK(balancing);
@@ -8600,7 +8588,6 @@ __init void init_sched_fair_class(void)
#ifdef CONFIG_NO_HZ_COMMON
	nohz.next_balance = jiffies;
	zalloc_cpumask_var(&nohz.idle_cpus_mask, GFP_NOWAIT);
	cpu_notifier(sched_ilb_notifier, 0);
#endif
#endif /* SMP */

+4 −0
Original line number Diff line number Diff line
@@ -1743,6 +1743,10 @@ enum rq_nohz_flag_bits {
};

#define nohz_flags(cpu)	(&cpu_rq(cpu)->nohz_flags)

extern void nohz_balance_exit_idle(unsigned int cpu);
#else
static inline void nohz_balance_exit_idle(unsigned int cpu) { }
#endif

#ifdef CONFIG_IRQ_TIME_ACCOUNTING