Messages in this thread | | | Subject | Re: [PATCH] sched/rt: Move cpu rq properties from "struct rt_rq" to "struct rq" | From | Steven Rostedt <> | Date | Thu, 20 Dec 2012 18:07:45 -0500 |
| |
On Fri, 2012-12-21 at 02:16 +0400, Kirill Tkhai wrote: > 20.12.2012, 21:53, "Thomas Gleixner" <tglx@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
| |