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[IPV6]: ROUTE: Unify two code paths for pmtu disc.

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Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
YOSHIFUJI Hideaki 2006-03-20 16:58:48 -08:00 committed by David S. Miller
parent 299d993908
commit d5315b500b
1 changed files with 4 additions and 14 deletions
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18
net/ipv6/route.c
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@ -1235,11 +1235,12 @@ void rt6_pmtu_discovery(struct in6_addr *daddr, struct in6_addr *saddr,
1. It is connected route. Action: COW 1. It is connected route. Action: COW
2. It is gatewayed route or NONEXTHOP route. Action: clone it. 2. It is gatewayed route or NONEXTHOP route. Action: clone it.
*/ */
if (!rt->rt6i_nexthop && !(rt->rt6i_flags & RTF_NONEXTHOP)) { if (!rt->rt6i_nexthop && !(rt->rt6i_flags & RTF_NONEXTHOP))
nrt = rt6_alloc_cow(rt, daddr, saddr); nrt = rt6_alloc_cow(rt, daddr, saddr);
if (!nrt) else
goto out; nrt = rt6_alloc_clone(rt, daddr);
if (nrt) {
nrt->u.dst.metrics[RTAX_MTU-1] = pmtu; nrt->u.dst.metrics[RTAX_MTU-1] = pmtu;
if (allfrag) if (allfrag)
nrt->u.dst.metrics[RTAX_FEATURES-1] |= RTAX_FEATURE_ALLFRAG; nrt->u.dst.metrics[RTAX_FEATURES-1] |= RTAX_FEATURE_ALLFRAG;
@ -1254,18 +1255,7 @@ void rt6_pmtu_discovery(struct in6_addr *daddr, struct in6_addr *saddr,
nrt->rt6i_flags |= RTF_DYNAMIC|RTF_EXPIRES; nrt->rt6i_flags |= RTF_DYNAMIC|RTF_EXPIRES;
ip6_ins_rt(nrt, NULL, NULL, NULL); ip6_ins_rt(nrt, NULL, NULL, NULL);
} else {
nrt = rt6_alloc_clone(rt, daddr);
if (!nrt)
goto out;
dst_set_expires(&nrt->u.dst, ip6_rt_mtu_expires);
nrt->rt6i_flags |= RTF_DYNAMIC|RTF_EXPIRES;
nrt->u.dst.metrics[RTAX_MTU-1] = pmtu;
if (allfrag)
nrt->u.dst.metrics[RTAX_FEATURES-1] |= RTAX_FEATURE_ALLFRAG;
ip6_ins_rt(nrt, NULL, NULL, NULL);
} }
out: out:
dst_release(&rt->u.dst); dst_release(&rt->u.dst);
} }