[PATCH v2 1/6] sched/fair: Only update stats for allowed CPUs when looking for dst group

Adam Li posted 6 patches 2 months, 3 weeks ago
[PATCH v2 1/6] sched/fair: Only update stats for allowed CPUs when looking for dst group
Posted by Adam Li 2 months, 3 weeks ago
A task may not use all the CPUs in a schedule group due to CPU affinity.
Only update schedule group statistics for allowed CPUs.

Signed-off-by: Adam Li <adamli@os.amperecomputing.com>
---
 kernel/sched/fair.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 7a14da5396fb..78a3d9b78e07 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -10693,7 +10693,7 @@ static inline void update_sg_wakeup_stats(struct sched_domain *sd,
 	if (sd->flags & SD_ASYM_CPUCAPACITY)
 		sgs->group_misfit_task_load = 1;
 
-	for_each_cpu(i, sched_group_span(group)) {
+	for_each_cpu_and(i, sched_group_span(group), p->cpus_ptr) {
 		struct rq *rq = cpu_rq(i);
 		unsigned int local;
 
-- 
2.34.1