From: Martin Zhang <martinbj2...@gmail.com>
1. new skb only need dst and ip address(v4 or v6).
2. skb_copy may need high order pages, which is very rare on long running
server.
Signed-off-by: Junwei Zhang <linggao....@alibaba-inc.com>
Signed-off-by: Martin Zhang <martinbj2...@gmail.com>
---
net/core/neighbour.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index 1aa8437..e6af42d 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -857,7 +857,7 @@ static void neigh_probe(struct neighbour *neigh)
struct sk_buff *skb = skb_peek_tail(&neigh->arp_queue);
/* keep skb alive even if arp_queue overflows */
if (skb)
- skb = skb_copy(skb, GFP_ATOMIC);
+ skb = skb_clone(skb, GFP_ATOMIC);
write_unlock(&neigh->lock);
neigh->ops->solicit(neigh, skb);
atomic_inc(&neigh->probes);
--
2.1.4
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