Unverified Commit ef6f9466 authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!8240 v2 dmaengine: idxd: Fix oops during rmmod on single-CPU platforms 

Merge Pull Request from: @ci-robot 
 
PR sync from: Wang Hai <wanghai38@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/OE4OHRB6HFSS2YCTISFLMGRSDH4STAWH/ 
 
https://gitee.com/src-openeuler/kernel/issues/I9QRHH 
 
Link:https://gitee.com/openeuler/kernel/pulls/8240

 

Reviewed-by: default avatarJialin Zhang <zhangjialin11@huawei.com>
Signed-off-by: default avatarJialin Zhang <zhangjialin11@huawei.com>
parents 83e8197d 57013eaa

drivers/dma/idxd/perfmon.c

+3 −6
Original line number Diff line number Diff line
@@ -529,14 +529,11 @@ static int perf_event_cpu_offline(unsigned int cpu, struct hlist_node *node) 
		return 0;



	target = cpumask_any_but(cpu_online_mask, cpu);



	/* migrate events if there is a valid target */

	if (target < nr_cpu_ids)

	if (target < nr_cpu_ids) {

		cpumask_set_cpu(target, &perfmon_dsa_cpu_mask);

	else

		target = -1;



		perf_pmu_migrate_context(&idxd_pmu->pmu, cpu, target);

	}



	return 0;

}