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[IPV6]: ROUTE: Split up rt6_cow() for future changes.

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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 16:55:51 -08:00 committed by David S. Miller
parent c4fd30eb18
commit 95a9a5ba02
1 changed files with 21 additions and 11 deletions
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32
net/ipv6/route.c
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@ -401,10 +401,9 @@ int ip6_ins_rt(struct rt6_info *rt, struct nlmsghdr *nlh,
with dst->error set to errno value.
*/
static struct rt6_info *rt6_cow(struct rt6_info *ort, struct in6_addr *daddr,
struct in6_addr *saddr, struct netlink_skb_parms *req)
static struct rt6_info *rt6_alloc_cow(struct rt6_info *ort, struct in6_addr *daddr,
struct in6_addr *saddr)
{
int err;
struct rt6_info *rt;
/*
@ -435,18 +434,29 @@ static struct rt6_info *rt6_cow(struct rt6_info *ort, struct in6_addr *daddr,
rt->rt6i_nexthop = ndisc_get_neigh(rt->rt6i_dev, &rt->rt6i_gateway);
dst_hold(&rt->u.dst);
}
err = ip6_ins_rt(rt, NULL, NULL, req);
if (err == 0)
return rt;
return rt;
}
static struct rt6_info *rt6_cow(struct rt6_info *ort, struct in6_addr *daddr,
struct in6_addr *saddr, struct netlink_skb_parms *req)
{
struct rt6_info *rt = rt6_alloc_cow(ort, daddr, saddr);
int err;
if (!rt) {
dst_hold(&ip6_null_entry.u.dst);
return &ip6_null_entry;
}
dst_hold(&rt->u.dst);
err = ip6_ins_rt(rt, NULL, NULL, req);
if (err)
rt->u.dst.error = err;
return rt;
}
dst_hold(&ip6_null_entry.u.dst);
return &ip6_null_entry;
return rt;
}
#define BACKTRACK() \