[Devel] Re: [PATCH v3 1/6] measure exec_clock for rt sched entities

[Peter Zijlstra]

On Wed, 2012-05-30 at 14:32 +0400, Glauber Costa wrote:
> >> +    for_each_sched_rt_entity(rt_se) {
> >> +            rt_rq = rt_rq_of_se(rt_se);
> >> +            schedstat_add(rt_rq, exec_clock, delta_exec);
> >> +    }
> >> +
> >>      if (!rt_bandwidth_enabled())
> >>              return;
> >
> > See, this just makes me sad.. you now have a double
> > for_each_sched_rt_entity() loop.
> 
> The way I read the rt.c code, it it is called from enqueue_task_rt only
> once. 

Ah, what I meant was, right after that !rt_bandwidth_enabled() muck we
do another for_each_sched_rt_entity() walk.