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| author | David S. Miller <davem@davemloft.net> | 2012-07-10 03:58:16 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-07-10 22:40:11 -0700 |
| commit | 1d861aa4b3fb08822055345f480850205ffe6170 (patch) | |
| tree | 072c23dcde7766274464c75e51e820649301ad82 /net/ipv6/ip6_output.c | |
| parent | 16d1839907e695387654901995f9286b65fbbc6a (diff) | |
| download | linux-1d861aa4b3fb08822055345f480850205ffe6170.tar.gz linux-1d861aa4b3fb08822055345f480850205ffe6170.tar.bz2 linux-1d861aa4b3fb08822055345f480850205ffe6170.zip | |
inet: Minimize use of cached route inetpeer.
Only use it in the absolutely required cases:
1) COW'ing metrics
2) ipv4 PMTU
3) ipv4 redirects
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/ip6_output.c')
| -rw-r--r-- | net/ipv6/ip6_output.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c index c6af5963a202..5b2d63ed793e 100644 --- a/net/ipv6/ip6_output.c +++ b/net/ipv6/ip6_output.c @@ -466,13 +466,15 @@ int ip6_forward(struct sk_buff *skb) else target = &hdr->daddr; - peer = rt6_get_peer_create(rt); + peer = inet_getpeer_v6(net->ipv6.peers, &rt->rt6i_dst.addr, 1); /* Limit redirects both by destination (here) and by source (inside ndisc_send_redirect) */ if (inet_peer_xrlim_allow(peer, 1*HZ)) ndisc_send_redirect(skb, target); + if (peer) + inet_putpeer(peer); } else { int addrtype = ipv6_addr_type(&hdr->saddr); @@ -592,10 +594,14 @@ void ipv6_select_ident(struct frag_hdr *fhdr, struct rt6_info *rt) int old, new; if (rt && !(rt->dst.flags & DST_NOPEER)) { - struct inet_peer *peer = rt6_get_peer_create(rt); + struct inet_peer *peer; + struct net *net; + net = dev_net(rt->dst.dev); + peer = inet_getpeer_v6(net->ipv6.peers, &rt->rt6i_dst.addr, 1); if (peer) { fhdr->identification = htonl(inet_getid(peer, 0)); + inet_putpeer(peer); return; } } |