Re: [PATCH 09/12] irq: implement IRQ expecting

[Jiri Slaby]

On 06/13/2010 05:31 PM, Tejun Heo wrote:
> --- a/kernel/irq/spurious.c
> +++ b/kernel/irq/spurious.c
...

> @@ -25,9 +26,43 @@ enum {
>  	/* IRQ polling common parameters */
>  	IRQ_POLL_SLOW_INTV		= 3 * HZ,	/* not too slow for ppl, slow enough for machine */
>  	IRQ_POLL_INTV			= HZ / 100,	/* from the good ol' 100HZ tick */
> +	IRQ_POLL_QUICK_INTV		= HZ / 1000,	/* pretty quick but not too taxing */
>  
>  	IRQ_POLL_SLOW_SLACK		= HZ,
>  	IRQ_POLL_SLACK			= HZ / 1000,	/* 10% slack */
> +	IRQ_POLL_QUICK_SLACK		= HZ / 10000,	/* 10% slack */

Hi. These are zeros on most systems (assuming distros set HZ=100 and
250), what is their purpose then?

regards,
-- 
js
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/