Unverified Commit 9545f070 authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!9990 netpoll: Fix race condition in netpoll_owner_active 

Merge Pull Request from: @ci-robot 
 
PR sync from: Zhengchao Shao <shaozhengchao@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/OGWQFKZX6VGL6QIMDZ6PM7CWUAPPYSJJ/ 
 
https://gitee.com/src-openeuler/kernel/issues/IACR1O 
 
Link:https://gitee.com/openeuler/kernel/pulls/9990

 

Reviewed-by: default avatarYue Haibing <yuehaibing@huawei.com>
Signed-off-by: default avatarYang Yingliang <yangyingliang@huawei.com>
parents 8a472d7b 2557aa24

net/core/netpoll.c

+1 −1
Original line number Diff line number Diff line
@@ -316,7 +316,7 @@ static int netpoll_owner_active(struct net_device *dev) 
	struct napi_struct *napi;



	list_for_each_entry_rcu(napi, &dev->napi_list, dev_list) {

		if (napi->poll_owner == smp_processor_id())

		if (READ_ONCE(napi->poll_owner) == smp_processor_id())

			return 1;

	}

	return 0;