diff options
| author |   Martin KaFai Lau <kafai@fb.com> | 2015-05-22 20:56:00 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2015-05-25 13:25:33 -0400 |
| commit | 45e4fd26683c9a5f88600d91b08a484f7f09226a (patch) | |
| tree | 9393590b3d79a26cf18cd11ac2b2d7f7c34a61e5 /include/net/ip6_route.h | |
| parent | ipv6: Combine rt6_alloc_cow and rt6_alloc_clone (diff) | |
| download | linux-dev-45e4fd26683c9a5f88600d91b08a484f7f09226a.tar.xz linux-dev-45e4fd26683c9a5f88600d91b08a484f7f09226a.zip | |
ipv6: Only create RTF_CACHE routes after encountering pmtu exception
This patch creates a RTF_CACHE routes only after encountering a pmtu
exception.
After ip6_rt_update_pmtu() has inserted the RTF_CACHE route to the fib6
tree, the rt->rt6i_node->fn_sernum is bumped which will fail the
ip6_dst_check() and trigger a relookup.
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Cc: Hannes Frederic Sowa <hannes@stressinduktion.org>
Cc: Steffen Klassert <steffen.klassert@secunet.com>
Cc: Julian Anastasov <ja@ssi.bg>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/ip6_route.h')
| -rw-r--r-- | include/net/ip6_route.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/net/ip6_route.h b/include/net/ip6_route.h index 4caf7d697dee..784ee3d01dbf 100644 --- a/include/net/ip6_route.h +++ b/include/net/ip6_route.h @@ -202,7 +202,7 @@ static inline struct in6_addr *rt6_nexthop(struct rt6_info *rt, { if (rt->rt6i_flags & RTF_GATEWAY) return &rt->rt6i_gateway; - else if (rt->rt6i_flags & RTF_CACHE) + else if (unlikely(rt->rt6i_flags & RTF_CACHE)) return &rt->rt6i_dst.addr; else return daddr; |