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ipvlan: protect against concurrent link removal
Adding and removing to the 'ipvlans' list is already done using _rcu list operations. Signed-off-by: Jiri Benc <jbenc@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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1 changed files with 3 additions and 1 deletions
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@ -193,7 +193,8 @@ static void ipvlan_multicast_frame(struct ipvl_port *port, struct sk_buff *skb,
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if (skb->protocol == htons(ETH_P_PAUSE))
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return;
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list_for_each_entry(ipvlan, &port->ipvlans, pnode) {
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rcu_read_lock();
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list_for_each_entry_rcu(ipvlan, &port->ipvlans, pnode) {
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if (local && (ipvlan == in_dev))
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continue;
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@ -220,6 +221,7 @@ static void ipvlan_multicast_frame(struct ipvl_port *port, struct sk_buff *skb,
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mcast_acct:
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ipvlan_count_rx(ipvlan, len, ret == NET_RX_SUCCESS, true);
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}
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rcu_read_unlock();
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/* Locally generated? ...Forward a copy to the main-device as
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* well. On the RX side we'll ignore it (wont give it to any
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