Use for_each_cpu_and() and thereby avoid computing the capacity for
CPUs we know we're not interested in.
Signed-off-by: Peter Zijlstra <pet...@infradead.org>
---
kernel/sched/fair.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -4977,7 +4977,7 @@ static struct rq *find_busiest_queue(str
unsigned long busiest_load = 0, busiest_power = SCHED_POWER_SCALE;
int i;
- for_each_cpu(i, sched_group_cpus(group)) {
+ for_each_cpu_and(i, sched_group_cpus(group), env->cpus) {
unsigned long power = power_of(i);
unsigned long capacity = DIV_ROUND_CLOSEST(power,
SCHED_POWER_SCALE);
@@ -4986,9 +4986,6 @@ static struct rq *find_busiest_queue(str
if (!capacity)
capacity = fix_small_capacity(env->sd, group);
- if (!cpumask_test_cpu(i, env->cpus))
- continue;
-
rq = cpu_rq(i);
wl = weighted_cpuload(i);
--
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