#ifdef CONFIG_USE_GENERIC_SMP_HELPERS
enum {
CSD_FLAG_LOCK = 0x01,
+ CSD_FLAG_WAIT = 0x02,
};
struct call_function_data {
static void csd_unlock(struct call_single_data *csd)
{
- WARN_ON(!(csd->flags & CSD_FLAG_LOCK));
+ WARN_ON((csd->flags & CSD_FLAG_WAIT) && !(csd->flags & CSD_FLAG_LOCK));
/*
* ensure we're all done before releasing data:
unsigned long flags;
int ipi;
+ if (wait)
+ csd->flags |= CSD_FLAG_WAIT;
+
raw_spin_lock_irqsave(&dst->lock, flags);
ipi = list_empty(&dst->list);
list_add_tail(&csd->list, &dst->list);
}
put_cpu();
}
+EXPORT_SYMBOL_GPL(__smp_call_function_single);
/**
* smp_call_function_many(): Run a function on a set of other CPUs.
nr_cpu_ids = find_last_bit(cpumask_bits(cpu_possible_mask),NR_CPUS) + 1;
}
+void __weak smp_announce(void)
+{
+ printk(KERN_INFO "Brought up %d CPUs\n", num_online_cpus());
+}
+
/* Called by boot processor to activate the rest. */
void __init smp_init(void)
{
}
/* Any cleanup work */
- printk(KERN_INFO "Brought up %ld CPUs\n", (long)num_online_cpus());
+ smp_announce();
smp_cpus_done(setup_max_cpus);
}