Unverified Commit aba0e1ab authored Sep 05, 2023 by openeuler-ci-bot Committed by Gitee Sep 05, 2023

!1991 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/KDXPV3NYFZSFGCF3IA5Z4ILBI3B7665B/ 
 
https://gitee.com/openeuler/kernel/issues/I7YBSW 
 
Link:https://gitee.com/openeuler/kernel/pulls/1991

 

Reviewed-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Jialin Zhang <zhangjialin11@huawei.com>

parents 06ea25a8 5da5a36a

kernel/sched/core.c

+4 −0

Original line number	Original line	Diff line number	Diff line
	@@ -8060,6 +8060,10 @@ int sched_cpu_deactivate(unsigned int cpu)

	ret = cpuset_cpu_inactive(cpu);		ret = cpuset_cpu_inactive(cpu);
	if (ret) {		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);		set_cpu_active(cpu, true);
	return ret;		return ret;
	}		}