[PATCH next 21/30] ipv6: Only compute net once in ip6_finish_output2
From: Eric W. Biederman <hidden>
Date: 2015-09-16 01:04:09
Also in:
netfilter-devel
Subsystem:
networking [general], networking [ipv4/ipv6], the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, David Ahern, Ido Schimmel, Linus Torvalds
Signed-off-by: "Eric W. Biederman" <redacted> --- net/ipv6/ip6_output.c | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-)
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index a80502c64523..12d0166a64cd 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c@@ -60,6 +60,7 @@ static int ip6_finish_output2(struct sock *sk, struct sk_buff *skb) { struct dst_entry *dst = skb_dst(skb); struct net_device *dev = dst->dev; + struct net *net = dev_net(dev); struct neighbour *neigh; struct in6_addr *nexthop; int ret;
@@ -71,7 +72,7 @@ static int ip6_finish_output2(struct sock *sk, struct sk_buff *skb) struct inet6_dev *idev = ip6_dst_idev(skb_dst(skb)); if (!(dev->flags & IFF_LOOPBACK) && sk_mc_loop(sk) && - ((mroute6_socket(dev_net(dev), skb) && + ((mroute6_socket(net, skb) && !(IP6CB(skb)->flags & IP6SKB_FORWARDED)) || ipv6_chk_mcast_addr(dev, &ipv6_hdr(skb)->daddr, &ipv6_hdr(skb)->saddr))) {
@@ -86,15 +87,14 @@ static int ip6_finish_output2(struct sock *sk, struct sk_buff *skb) dev_loopback_xmit); if (ipv6_hdr(skb)->hop_limit == 0) { - IP6_INC_STATS(dev_net(dev), idev, + IP6_INC_STATS(net, idev, IPSTATS_MIB_OUTDISCARDS); kfree_skb(skb); return 0; } } - IP6_UPD_PO_STATS(dev_net(dev), idev, IPSTATS_MIB_OUTMCAST, - skb->len); + IP6_UPD_PO_STATS(net, idev, IPSTATS_MIB_OUTMCAST, skb->len); if (IPV6_ADDR_MC_SCOPE(&ipv6_hdr(skb)->daddr) <= IPV6_ADDR_SCOPE_NODELOCAL &&
@@ -116,8 +116,7 @@ static int ip6_finish_output2(struct sock *sk, struct sk_buff *skb) } rcu_read_unlock_bh(); - IP6_INC_STATS(dev_net(dst->dev), - ip6_dst_idev(dst), IPSTATS_MIB_OUTNOROUTES); + IP6_INC_STATS(net, ip6_dst_idev(dst), IPSTATS_MIB_OUTNOROUTES); kfree_skb(skb); return -EINVAL; }
--
2.2.1