On Fri, 2012-12-21 at 02:16 +0400, Kirill Tkhai wrote:
> 20.12.2012, 21:53, "Thomas Gleixner" <t...@linutronix.de>:
> > On Tue, 18 Dec 2012, Kirill Tkhai wrote:
> >
> >> The members rt_nr_total, rt_nr_migratory, overloaded and pushable_tasks
> >> are
> >> properties of cpu runqueue, not group rt_rq.
> >
> > Why?
>
> Because, they depend on number and properties of all processes of rq, not of
> nested rt_rq.
>
You're answer is still confusing.
struct rq {
[...]
struct rt_rq rt;
rt_rq is just a part of rq. What's the point?
rq = container_of(rt_rq, struct rt_rq, rt);
As the comment above struct rt_rq says:
/* Real-Time classes' related field in a runqueue: */
Those look like fields related to the Real-Time class. I don't see them
used outside of kernel/sched/rt.c
-- Steve
> >
> > Thanks,
> >
> > tglx
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