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sched/walt: Fix SCHED_CPUFREQ_CONTINUE for hotplug cases

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cluster->cpus might include hotplugged cores and as a result we would
end up sending incorrect flag to cpufreq. Fix the bug by checking
cpu_online_mask.

Change-Id: I39fa9296aac72604c91470a8ffe0a5b9efbaac1f
Signed-off-by: Puja Gupta <pujag@codeaurora.org>
This commit is contained in:
Puja Gupta 2018-04-17 11:44:32 -07:00
parent 4cec0cd668
commit a3f8a97e46
1 changed files with 7 additions and 2 deletions
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9
kernel/sched/walt.c
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@ -3083,9 +3083,14 @@ void walt_irq_work(struct irq_work *irq_work)
}
for_each_sched_cluster(cluster) {
unsigned int num_cpus = cpumask_weight(&cluster->cpus), i = 1;
cpumask_t cluster_online_cpus;
unsigned int num_cpus, i = 1;
for_each_cpu(cpu, &cluster->cpus) {
cpumask_and(&cluster_online_cpus, &cluster->cpus,
cpu_online_mask);
num_cpus = cpumask_weight(&cluster_online_cpus);
for_each_cpu(cpu, &cluster_online_cpus) {
if (i == num_cpus)
cpufreq_update_util(cpu_rq(cpu), flag);
else