Unverified Commit 50b54a2d authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!9991 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/RZUQR6FJKRO6JX7FI7G7UFES3NAKGOQJ/ 
 
https://gitee.com/src-openeuler/kernel/issues/IACR1O 
 
Link:https://gitee.com/openeuler/kernel/pulls/9991

 

Reviewed-by: default avatarYue Haibing <yuehaibing@huawei.com>
Signed-off-by: default avatarYang Yingliang <yangyingliang@huawei.com>
parents ffb302ea 62d0b170

net/core/netpoll.c

+1 −1
Original line number Diff line number Diff line
@@ -299,7 +299,7 @@ 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;