On Tue, Nov 04, 2014 at 09:45:49AM -0500, Steven Rostedt wrote: > > +++ b/kernel/sched/deadline.c > > @@ -954,6 +954,9 @@ select_task_rq_dl(struct task_struct *p, int cpu, int > > sd_flag, int flags) > > struct task_struct *curr; > > struct rq *rq; > > > > + if (p->nr_cpus_allowed == 1) > > + goto out; > > + > > This looks fine, and I'm wondering if we shouldn't just move this into > kernel/sched/core.c: select_task_rq(). Why bother calling the select_rq > code if the task is pinned? > > This change will make fair.c, rt.c, and deadline.c all start with the > same logic. If this should be an optimization, just move it to core.c > and be done with it.
Yeah, that makes sense. Back when, in the olden days, nr_cpus_allowed was specific to the rt class, but we fixed that. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
