> +enum res_state res_counter_state(struct res_counter *counter)
> +{
> +	unsigned long flags;
> +	enum res_state ret = RES_BELOW_LIMIT;
> +
> +	spin_lock_irqsave(&counter->lock, flags);
> +	if (counter->use_watermark) {
> +		if (counter->usage <= counter->lwmark)
> +			ret = RES_BELOW_LOW;
> +		else if (counter->usage <= counter->hwmark)
> +			ret = RES_BELOW_HIGH;
> +	}
> +	spin_unlock_irqrestore(&counter->lock, flags);
> +	return ret;
> +}

can't it be RES_OVER_LIMIT?
eg. when you lower the limit.

YAMAMOTO Takashi
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