hulk inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I7WWMX CVE: NA
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In cpu hotplug case, when a cpu go to offline, we should unthrottle cfs_rq which be throttled on this cpu, so they will be migrated to online cpu.
Signed-off-by: Zhang Qiao zhangqiao22@huawei.com --- kernel/sched/fair.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 94290eefba36..eff81e480604 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -166,6 +166,7 @@ int __weak arch_asym_cpu_priority(int cpu)
#ifdef CONFIG_QOS_SCHED static DEFINE_PER_CPU_SHARED_ALIGNED(struct list_head, qos_throttled_cfs_rq); +static int unthrottle_qos_cfs_rqs(int cpu); #endif
#ifdef CONFIG_CFS_BANDWIDTH @@ -6141,6 +6142,10 @@ static void __maybe_unused unthrottle_offline_cfs_rqs(struct rq *rq) unthrottle_cfs_rq(cfs_rq); } rcu_read_unlock(); + +#ifdef CONFIG_QOS_SCHED + unthrottle_qos_cfs_rqs(cpu_of(rq)); +#endif }
#else /* CONFIG_CFS_BANDWIDTH */