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net/ipv6: separate handling of FIB entries from dst based routes

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Last step before flipping the data type for FIB entries:
- use fib6_info_alloc to create FIB entries in ip6_route_info_create
  and addrconf_dst_alloc
- use fib6_info_release in place of dst_release, ip6_rt_put and
  rt6_release
- remove the dst_hold before calling __ip6_ins_rt or ip6_del_rt
- when purging routes, drop per-cpu routes
- replace inc and dec of rt6i_ref with fib6_info_hold and fib6_info_release
- use rt->from since it points to the FIB entry
- drop references to exception bucket, fib6_metrics and per-cpu from
  dst entries (those are relevant for fib entries only)

Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David Ahern
2018-04-17 17:33:25 -07:00
committed by David S. Miller
parent a64efe142f
commit 93531c6743
8 changed files with 115 additions and 152 deletions
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6
net/ipv6/ndisc.c
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@@ -1283,7 +1283,7 @@ static void ndisc_router_discovery(struct sk_buff *skb)
ND_PRINTK(0, err,
"RA: %s got default router without neighbour\n",
__func__);
ip6_rt_put(rt);
fib6_info_release(rt);
return;
}
}
@@ -1313,7 +1313,7 @@ static void ndisc_router_discovery(struct sk_buff *skb)
ND_PRINTK(0, err,
"RA: %s got default router without neighbour\n",
__func__);
ip6_rt_put(rt);
fib6_info_release(rt);
return;
}
neigh->flags |= NTF_ROUTER;
@@ -1499,7 +1499,7 @@ skip_routeinfo:
ND_PRINTK(2, warn, "RA: invalid RA options\n");
}
out:
ip6_rt_put(rt);
fib6_info_release(rt);
if (neigh)
neigh_release(neigh);
}