diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/hrtimer.c | 2 | ||||
| -rw-r--r-- | kernel/rcuclassic.c | 2 | ||||
| -rw-r--r-- | kernel/rcupreempt.c | 2 | ||||
| -rw-r--r-- | kernel/sched.c | 2 | ||||
| -rw-r--r-- | kernel/softirq.c | 61 | ||||
| -rw-r--r-- | kernel/timer.c | 2 |
6 files changed, 21 insertions, 50 deletions
diff --git a/kernel/hrtimer.c b/kernel/hrtimer.c index ab80515008f4..e0da4fc9f931 100644 --- a/kernel/hrtimer.c +++ b/kernel/hrtimer.c @@ -1677,7 +1677,7 @@ void __init hrtimers_init(void) (void *)(long)smp_processor_id()); register_cpu_notifier(&hrtimers_nb); #ifdef CONFIG_HIGH_RES_TIMERS - open_softirq(HRTIMER_SOFTIRQ, run_hrtimer_softirq, NULL); + open_softirq(HRTIMER_SOFTIRQ, run_hrtimer_softirq); #endif } diff --git a/kernel/rcuclassic.c b/kernel/rcuclassic.c index a38895a5b8e2..65c0906080ef 100644 --- a/kernel/rcuclassic.c +++ b/kernel/rcuclassic.c @@ -543,7 +543,7 @@ static void __cpuinit rcu_online_cpu(int cpu) rcu_init_percpu_data(cpu, &rcu_ctrlblk, rdp); rcu_init_percpu_data(cpu, &rcu_bh_ctrlblk, bh_rdp); - open_softirq(RCU_SOFTIRQ, rcu_process_callbacks, NULL); + open_softirq(RCU_SOFTIRQ, rcu_process_callbacks); } static int __cpuinit rcu_cpu_notify(struct notifier_block *self, diff --git a/kernel/rcupreempt.c b/kernel/rcupreempt.c index 41d275a81df5..9bf445664457 100644 --- a/kernel/rcupreempt.c +++ b/kernel/rcupreempt.c @@ -1119,7 +1119,7 @@ void __init __rcu_init(void) for_each_online_cpu(cpu) rcu_cpu_notify(&rcu_nb, CPU_UP_PREPARE, (void *)(long) cpu); - open_softirq(RCU_SOFTIRQ, rcu_process_callbacks, NULL); + open_softirq(RCU_SOFTIRQ, rcu_process_callbacks); } /* diff --git a/kernel/sched.c b/kernel/sched.c index 2317a2178104..99e6d850ecab 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -8152,7 +8152,7 @@ void __init sched_init(void) #endif #ifdef CONFIG_SMP - open_softirq(SCHED_SOFTIRQ, run_rebalance_domains, NULL); + open_softirq(SCHED_SOFTIRQ, run_rebalance_domains); #endif #ifdef CONFIG_RT_MUTEXES diff --git a/kernel/softirq.c b/kernel/softirq.c index afd9120c2fc4..3e9e896fdc5b 100644 --- a/kernel/softirq.c +++ b/kernel/softirq.c @@ -131,23 +131,17 @@ void _local_bh_enable(void) EXPORT_SYMBOL(_local_bh_enable); -void local_bh_enable(void) +static inline void _local_bh_enable_ip(unsigned long ip) { + WARN_ON_ONCE(in_irq() || irqs_disabled()); #ifdef CONFIG_TRACE_IRQFLAGS - unsigned long flags; - - WARN_ON_ONCE(in_irq()); -#endif - WARN_ON_ONCE(irqs_disabled()); - -#ifdef CONFIG_TRACE_IRQFLAGS - local_irq_save(flags); + local_irq_disable(); #endif /* * Are softirqs going to be turned on now: */ if (softirq_count() == SOFTIRQ_OFFSET) - trace_softirqs_on((unsigned long)__builtin_return_address(0)); + trace_softirqs_on(ip); /* * Keep preemption disabled until we are done with * softirq processing: @@ -159,40 +153,20 @@ void local_bh_enable(void) dec_preempt_count(); #ifdef CONFIG_TRACE_IRQFLAGS - local_irq_restore(flags); + local_irq_enable(); #endif preempt_check_resched(); } + +void local_bh_enable(void) +{ + _local_bh_enable_ip((unsigned long)__builtin_return_address(0)); +} EXPORT_SYMBOL(local_bh_enable); void local_bh_enable_ip(unsigned long ip) { -#ifdef CONFIG_TRACE_IRQFLAGS - unsigned long flags; - - WARN_ON_ONCE(in_irq()); - - local_irq_save(flags); -#endif - /* - * Are softirqs going to be turned on now: - */ - if (softirq_count() == SOFTIRQ_OFFSET) - trace_softirqs_on(ip); - /* - * Keep preemption disabled until we are done with - * softirq processing: - */ - sub_preempt_count(SOFTIRQ_OFFSET - 1); - - if (unlikely(!in_interrupt() && local_softirq_pending())) - do_softirq(); - - dec_preempt_count(); -#ifdef CONFIG_TRACE_IRQFLAGS - local_irq_restore(flags); -#endif - preempt_check_resched(); + _local_bh_enable_ip(ip); } EXPORT_SYMBOL(local_bh_enable_ip); @@ -347,9 +321,8 @@ void raise_softirq(unsigned int nr) local_irq_restore(flags); } -void open_softirq(int nr, void (*action)(struct softirq_action*), void *data) +void open_softirq(int nr, void (*action)(struct softirq_action *)) { - softirq_vec[nr].data = data; softirq_vec[nr].action = action; } @@ -360,10 +333,8 @@ struct tasklet_head struct tasklet_struct **tail; }; -/* Some compilers disobey section attribute on statics when not - initialized -- RR */ -static DEFINE_PER_CPU(struct tasklet_head, tasklet_vec) = { NULL }; -static DEFINE_PER_CPU(struct tasklet_head, tasklet_hi_vec) = { NULL }; +static DEFINE_PER_CPU(struct tasklet_head, tasklet_vec); +static DEFINE_PER_CPU(struct tasklet_head, tasklet_hi_vec); void __tasklet_schedule(struct tasklet_struct *t) { @@ -503,8 +474,8 @@ void __init softirq_init(void) &per_cpu(tasklet_hi_vec, cpu).head; } - open_softirq(TASKLET_SOFTIRQ, tasklet_action, NULL); - open_softirq(HI_SOFTIRQ, tasklet_hi_action, NULL); + open_softirq(TASKLET_SOFTIRQ, tasklet_action); + open_softirq(HI_SOFTIRQ, tasklet_hi_action); } static int ksoftirqd(void * __bind_cpu) diff --git a/kernel/timer.c b/kernel/timer.c index ceacc6626572..b4da888497fa 100644 --- a/kernel/timer.c +++ b/kernel/timer.c @@ -1502,7 +1502,7 @@ void __init init_timers(void) BUG_ON(err == NOTIFY_BAD); register_cpu_notifier(&timers_nb); - open_softirq(TIMER_SOFTIRQ, run_timer_softirq, NULL); + open_softirq(TIMER_SOFTIRQ, run_timer_softirq); } /** |