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| author | Martin Zhang | 2015-11-17 13:49:30 +0100 |
|---|---|---|
| committer | David S. Miller | 2015-11-17 21:25:44 +0100 |
| commit | 19125c1a4fd873421698876f34a06dbe18d25f17 (patch) | |
| tree | cc8f92877c45f9876a6d602de42d094805bcc478 /net/core/neighbour.c | |
| parent | packet: Use PAGE_ALIGNED macro (diff) | |
| download | kernel-qcow2-linux-19125c1a4fd873421698876f34a06dbe18d25f17.tar.gz kernel-qcow2-linux-19125c1a4fd873421698876f34a06dbe18d25f17.tar.xz kernel-qcow2-linux-19125c1a4fd873421698876f34a06dbe18d25f17.zip | |
net: use skb_clone to avoid alloc_pages failure.
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.zjw@alibaba-inc.com>
Signed-off-by: Martin Zhang <martinbj2008@gmail.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core/neighbour.c')
| -rw-r--r-- | net/core/neighbour.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/core/neighbour.c b/net/core/neighbour.c index 1aa8437ed6c4..e6af42da28d9 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); |