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Merge branch 'linus' into timers/nohz

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This commit is contained in:
Ingo Molnar 2008-07-18 19:53:16 +02:00
commit 9b610fda0d
4958 changed files with 297220 additions and 303502 deletions
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75
kernel/softirq.c
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@ -131,48 +131,11 @@ 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);
#endif
/*
* Are softirqs going to be turned on now:
*/
if (softirq_count() == SOFTIRQ_OFFSET)
trace_softirqs_on((unsigned long)__builtin_return_address(0));
/*
* 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();
}
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);
local_irq_disable();
#endif
/*
* Are softirqs going to be turned on now:
@ -190,10 +153,21 @@ void local_bh_enable_ip(unsigned long ip)
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)
{
_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)
@ -645,7 +616,7 @@ static int __cpuinit cpu_callback(struct notifier_block *nfb,
p = per_cpu(ksoftirqd, hotcpu);
per_cpu(ksoftirqd, hotcpu) = NULL;
sched_setscheduler(p, SCHED_FIFO, &param);
sched_setscheduler_nocheck(p, SCHED_FIFO, &param);
kthread_stop(p);
takeover_tasklets(hotcpu);
break;
@ -674,12 +645,12 @@ __init int spawn_ksoftirqd(void)
/*
* Call a function on all processors
*/
int on_each_cpu(void (*func) (void *info), void *info, int retry, int wait)
int on_each_cpu(void (*func) (void *info), void *info, int wait)
{
int ret = 0;
preempt_disable();
ret = smp_call_function(func, info, retry, wait);
ret = smp_call_function(func, info, wait);
local_irq_disable();
func(info);
local_irq_enable();