On Thu, Apr 12, 2012 at 08:20:06PM +0900, KAMEZAWA Hiroyuki wrote:
> +/*
> + * In hierarchical accounting, child's usage is accounted into ancestors.
> + * To move local usage to its parent, just forget current level usage.
> + */
> +void res_counter_move_parent(struct res_counter *counter, unsigned long val)
> +{
> + unsigned long flags;
> +
> + BUG_ON(!counter->parent);
> + spin_lock_irqsave(&counter->lock, flags);
> + res_counter_uncharge_locked(counter, val);
> + spin_unlock_irqrestore(&counter->lock, flags);
> +}
On the second thought, do we need this at all? It's as good as doing
nothing after all, no?
Thanks.
--
tejun
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