Re: [PATCH RFC] sched: Fixed missed rt-balance points on priority shifts

["Gregory Haskins" <ghaskins@novell.com>]

>>> On Sun, Dec 9, 2007 at  9:53 PM, in message
<20071210024709.4760.68134.stgit@novell1.haskins.net>, Gregory Haskins
<ghaskins@novell.com> wrote: 

> +		 * I have no doubt that this is the proper thing to do to make
> +		 * sure RT tasks are properly balanced.  What I cannot wrap my
> +		 * head around at this late hour is if issuing a reschedule()
> +		 * here may cause issues in other circumstances.  TBD
> +		 */
> +		if (!task_running(rq, p))
> +			resched_task(rq->curr);
> +	}

It dawned on me after I sent this that a further optimization here is to predicate the reschedule on whether we are overloaded.  In otherwords:

if (!task_running(rq, p) && rt_overloaded(rq))

Regards,
-Greg