mirror of https://gitee.com/openkylin/linux.git
[NETLINK]: Move broadcast skb_orphan to the skb_get path.
Cloned packets don't need the orphan call. Signed-off-by: Tommy S. Christensen <tommy.christensen@tpack.net> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -697,7 +697,6 @@ static __inline__ int netlink_broadcast_deliver(struct sock *sk, struct sk_buff
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if (atomic_read(&sk->sk_rmem_alloc) <= sk->sk_rcvbuf &&
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!test_bit(0, &nlk->state)) {
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skb_orphan(skb);
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skb_set_owner_r(skb, sk);
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skb_queue_tail(&sk->sk_receive_queue, skb);
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sk->sk_data_ready(sk, skb->len);
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@ -736,11 +735,15 @@ static inline int do_one_broadcast(struct sock *sk,
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sock_hold(sk);
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if (p->skb2 == NULL) {
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if (atomic_read(&p->skb->users) != 1) {
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if (skb_shared(p->skb)) {
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p->skb2 = skb_clone(p->skb, p->allocation);
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} else {
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p->skb2 = p->skb;
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atomic_inc(&p->skb->users);
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p->skb2 = skb_get(p->skb);
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/*
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* skb ownership may have been set when
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* delivered to a previous socket.
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*/
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skb_orphan(p->skb2);
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}
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}
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if (p->skb2 == NULL) {
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