[PATCH 6.10 241/263] sched/core: Fix unbalance set_rq_online/offline() in sched_cpu_deactivate()

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6.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Yang Yingliang <yangyingliang@xxxxxxxxxx>

commit fe7a11c78d2a9bdb8b50afc278a31ac177000948 upstream.

If cpuset_cpu_inactive() fails, set_rq_online() need be called to rollback.

Fixes: 120455c514f7 ("sched: Fix hotplug vs CPU bandwidth control")
Cc: stable@xxxxxxxxxx
Signed-off-by: Yang Yingliang <yangyingliang@xxxxxxxxxx>
Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20240703031610.587047-5-yangyingliang@xxxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 kernel/sched/core.c |    1 +
 1 file changed, 1 insertion(+)

--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -9781,6 +9781,7 @@ int sched_cpu_deactivate(unsigned int cp
 	ret = cpuset_cpu_inactive(cpu);
 	if (ret) {
 		sched_smt_present_inc(cpu);
+		sched_set_rq_online(rq, cpu);
 		balance_push_set(cpu, false);
 		set_cpu_active(cpu, true);
 		sched_update_numa(cpu, true);






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