From: Wang Yufen <wangyufen@huawei.com> mainline inclusion from mainline-v5.13-rc1 commit 37f0e514db660f03f8982b8f4fbbd4b2740abe7d category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I545NW Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i... -------------------------------- Currently we purge the ingress_skb queue only when psock refcnt goes down to 0, so locking the queue is not necessary, but in order to be called during ->close, we have to lock it here. Signed-off-by: Cong Wang <cong.wang@bytedance.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Jakub Sitnicki <jakub@cloudflare.com> Acked-by: John Fastabend <john.fastabend@gmail.com> Link: https://lore.kernel.org/bpf/20210331023237.41094-2-xiyou.wangcong@gmail.com Signed-off-by: Wang Yufen <wangyufen@huawei.com> Reviewed-by: Yue Haibing <yuehaibing@huawei.com> Reviewed-by: Liu Jian <liujian56@huawei.com> Reviewed-by: Wei Yongjun <weiyongjun1@huawei.com> Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com> --- net/core/skmsg.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/core/skmsg.c b/net/core/skmsg.c index 4ee4fe436847..f80428cc7264 100644 --- a/net/core/skmsg.c +++ b/net/core/skmsg.c @@ -638,7 +638,7 @@ void __sk_psock_purge_ingress_msg(struct sk_psock *psock) static void sk_psock_zap_ingress(struct sk_psock *psock) { - __skb_queue_purge(&psock->ingress_skb); + skb_queue_purge(&psock->ingress_skb); __sk_psock_purge_ingress_msg(psock); } -- 2.20.1