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-rw-r--r--net/ipv4/ip_output.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index 5516825a075..8ebe86dd72a 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -1284,7 +1284,12 @@ int ip_push_pending_frames(struct sock *sk)
skb->priority = sk->sk_priority;
skb->mark = sk->sk_mark;
- skb->dst = dst_clone(&rt->u.dst);
+ /*
+ * Steal rt from cork.dst to avoid a pair of atomic_inc/atomic_dec
+ * on dst refcount
+ */
+ inet->cork.dst = NULL;
+ skb->dst = &rt->u.dst;
if (iph->protocol == IPPROTO_ICMP)
icmp_out_count(net, ((struct icmphdr *)