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authorEric Dumazet <edumazet@google.com>2014-10-30 13:32:34 -0400
committerDavid S. Miller <davem@davemloft.net>2014-10-30 19:58:30 -0400
commit39bb5e62867de82b269b07df900165029b928359 (patch)
treef0cbefb0eee4eda2697c4e2fd6e0ad3ee7331f43 /net/xfrm
parent14051f0452a2c26a3f4791e6ad6a435e8f1945ff (diff)
net: skb_fclone_busy() needs to detect orphaned skb
Some drivers are unable to perform TX completions in a bound time. They instead call skb_orphan() Problem is skb_fclone_busy() has to detect this case, otherwise we block TCP retransmits and can freeze unlucky tcp sessions on mostly idle hosts. Signed-off-by: Eric Dumazet <edumazet@google.com> Fixes: 1f3279ae0c13 ("tcp: avoid retransmits of TCP packets hanging in host queues") Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/xfrm')
-rw-r--r--net/xfrm/xfrm_policy.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index 4c4e457e7888..88bf289abdc9 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -1962,7 +1962,7 @@ static int xdst_queue_output(struct sock *sk, struct sk_buff *skb)
1962 struct xfrm_policy *pol = xdst->pols[0]; 1962 struct xfrm_policy *pol = xdst->pols[0];
1963 struct xfrm_policy_queue *pq = &pol->polq; 1963 struct xfrm_policy_queue *pq = &pol->polq;
1964 1964
1965 if (unlikely(skb_fclone_busy(skb))) { 1965 if (unlikely(skb_fclone_busy(sk, skb))) {
1966 kfree_skb(skb); 1966 kfree_skb(skb);
1967 return 0; 1967 return 0;
1968 } 1968 }