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authorJulian Anastasov <ja@ssi.bg>2017-02-06 23:14:14 +0200
committerDavid S. Miller <davem@davemloft.net>2017-02-07 13:07:46 -0500
commitc3a2e8370534f810cac6050169db0ed3e0f94f0b (patch)
treee7d955ab2ffde6bb88cf6b3c69ea41a4841e6d9f /net/ipv4/tcp_output.c
parentsctp: add dst_pending_confirm flag (diff)
downloadlinux-dev-c3a2e8370534f810cac6050169db0ed3e0f94f0b.tar.xz
linux-dev-c3a2e8370534f810cac6050169db0ed3e0f94f0b.zip
tcp: replace dst_confirm with sk_dst_confirm
When same struct dst_entry can be used for many different neighbours we can not use it for pending confirmations. Use the new sk_dst_confirm() helper to propagate the indication from received packets to sock_confirm_neigh(). Reported-by: YueHaibing <yuehaibing@huawei.com> Fixes: 5110effee8fd ("net: Do delayed neigh confirmation.") Fixes: f2bb4bedf35d ("ipv4: Cache output routes in fib_info nexthops.") Tested-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: Julian Anastasov <ja@ssi.bg> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp_output.c')
-rw-r--r--net/ipv4/tcp_output.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index ccf1ef4dcba4..61f272a99a49 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -980,6 +980,8 @@ static int tcp_transmit_skb(struct sock *sk, struct sk_buff *skb, int clone_it,
skb_set_hash_from_sk(skb, sk);
atomic_add(skb->truesize, &sk->sk_wmem_alloc);
+ skb_set_dst_pending_confirm(skb, sk->sk_dst_pending_confirm);
+
/* Build TCP header and checksum it. */
th = (struct tcphdr *)skb->data;
th->source = inet->inet_sport;