From 0936629f01bb1b11772db8c36be421365238cbec Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Tue, 11 Jun 2013 16:32:43 +0530 Subject: [PATCH] sched: Use cached value of span instead of calling sched_domain_span() In the beginning of build_sched_groups() we called sched_domain_span() and cached its return value in span. Few statements later we are calling it again to get the same pointer. Lets use the cached value instead as it hasn't changed in between. Signed-off-by: Viresh Kumar Signed-off-by: Peter Zijlstra Link: http://lkml.kernel.org/r/834ecd507071ad88aff039352dbc7e063dd996a7.1370948150.git.viresh.kumar@linaro.org Signed-off-by: Ingo Molnar --- kernel/sched/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 547b7d3..3388387 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -5347,7 +5347,7 @@ build_sched_groups(struct sched_domain *sd, int cpu) get_group(cpu, sdd, &sd->groups); atomic_inc(&sd->groups->ref); - if (cpu != cpumask_first(sched_domain_span(sd))) + if (cpu != cpumask_first(span)) return 0; lockdep_assert_held(&sched_domains_mutex); -- 2.7.4