Unverified Commit 1b9b45b9 authored Sep 04, 2023 by openeuler-ci-bot Committed by Gitee Sep 04, 2023

!1973 sched/smt: fix unbalance sched_smt_present dec/inc

Merge Pull Request from: @ci-robot 
 
PR sync from: Yu Liao <liaoyu15@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/5AVVP6NKXBUAA7NQZ5OQ36P5C67GON5A/ 
 
https://gitee.com/openeuler/kernel/issues/I7YBSW 
 
Link:https://gitee.com/openeuler/kernel/pulls/1973

 

Reviewed-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Liu YongQiang <liuyongqiang13@huawei.com>
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>

parents 4b99a7ce 0a948df1

kernel/sched/core.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -5897,6 +5897,10 @@ int sched_cpu_deactivate(unsigned int cpu)

		ret = cpuset_cpu_inactive(cpu);
		if (ret) {
		#ifdef CONFIG_SCHED_SMT
		if (cpumask_weight(cpu_smt_mask(cpu)) == 2)
		static_branch_inc_cpuslocked(&sched_smt_present);
		#endif
		set_cpu_active(cpu, true);
		return ret;
		}