diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2016-03-10 12:54:20 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2016-05-06 14:58:26 +0200 |
| commit | 20a5c8cc74ade5027c2b0e2bc724278afd6054f3 (patch) | |
| tree | 59324f2fedad0b11ebf2b18e0ca34cc3d26768fe /kernel/sched | |
| parent | aaddd7d1c740ab3c5efaad7a34650b6dc680c21c (diff) | |
| download | linux-20a5c8cc74ade5027c2b0e2bc724278afd6054f3.tar.bz2 | |
sched/fair: Make ilb_notifier an explicit call
No need for an extra notifier.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Cc: rt@linutronix.de
Link: http://lkml.kernel.org/r/20160310120025.693720241@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel/sched')
| -rw-r--r-- | kernel/sched/core.c | 1 | ||||
| -rw-r--r-- | kernel/sched/fair.c | 15 | ||||
| -rw-r--r-- | kernel/sched/sched.h | 4 |
3 files changed, 6 insertions, 14 deletions
diff --git a/kernel/sched/core.c b/kernel/sched/core.c index a9a65ed772e3..28ffd6882ea6 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -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 diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 0fe30e66aff1..8b6db3626566 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -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 */ diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h index ec2e8d23527e..16a27b624ee5 100644 --- a/kernel/sched/sched.h +++ b/kernel/sched/sched.h @@ -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 |