On Fri, 4 Oct 2013 14:24:53 -0500 Shawn Bohrer <[email protected]> wrote:
> From: Shawn Bohrer <[email protected]> > > In 76854c7e8f3f4172fef091e78d88b3b751463ac6 "sched: Use > rt.nr_cpus_allowed to recover select_task_rq() cycles" an optimization > was added to select_task_rq_rt() that immediately returns when > p->nr_cpus_allowed == 1 at the beginning of the function. This makes > the latter p->nr_cpus_allowed > 1 check redundant and can be removed. > > Signed-off-by: Shawn Bohrer <[email protected]> Reviewed-by: Steven Rostedt <[email protected]> -- Steve > --- > kernel/sched/rt.c | 3 +-- > 1 file changed, 1 insertion(+), 2 deletions(-) > > diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c > index 01970c8..ceebfba 100644 > --- a/kernel/sched/rt.c > +++ b/kernel/sched/rt.c > @@ -1213,8 +1213,7 @@ select_task_rq_rt(struct task_struct *p, int sd_flag, > int flags) > */ > if (curr && unlikely(rt_task(curr)) && > (curr->nr_cpus_allowed < 2 || > - curr->prio <= p->prio) && > - (p->nr_cpus_allowed > 1)) { > + curr->prio <= p->prio)) { > int target = find_lowest_rq(p); > > if (target != -1) -- 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/
