On Fri, 2 Mar 2007 20:08:36 +0100
Heiko Carstens <heiko.carstens@xxxxxxxxxx> wrote:
> +/*
> + * double_hrtimer_lock/unlock are used to ensure that on cpu hotplug the
> + * per cpu timer locks are always taken in the same order.
> + */
> +static void double_hrtimer_lock(struct hrtimer_cpu_base *base1,
> + struct hrtimer_cpu_base *base2, int ind)
> + __acquires(base1->lock)
> + __acquires(base2->lock)
> +{
>
> ...
>
> +/*
> + * double_timer_lock/unlock are used to ensure that on cpu hotplug the
> + * per cpu timer locks are always taken in the same order.
> + */
> +static void __devinit double_timer_lock(tvec_base_t *base1,
> + tvec_base_t *base2, int ind)
> + __acquires(base1->lock)
> + __acquires(base2->lock)
hm. Can we not just pass in the spinlock_t*'s and use a common function?
void double_spin_lock(spinlock_t *l1, spinlock_t *l2, int ind);
that way it has nothing to do with timers and can potentially be used
elsewhere in the kernel, too.
(what does "ind" mean?)
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