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ipv6: Kill rt6i_dev and rt6i_expires defines. 

It just obscures that the netdevice pointer and the expires value are
implemented in the dst_entry sub-object of the ipv6 route.

And it makes grepping for dst_entry member uses much harder too.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2011-12-28 20:19:20 -05:00
parent f83c7790dc
commit d191854282
10 changed files with 49 additions and 52 deletions
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3
include/net/ip6_fib.h
View File

@ -86,9 +86,6 @@ struct fib6_table;
struct rt6_info {
struct dst_entry dst;
#define rt6i_dev dst.dev
#define rt6i_expires dst.expires
/*
* Tail elements of dst_entry (__refcnt etc.)
* and these elements (rarely used in hot path) are in

8
net/ipv6/addrconf.c
View File

@ -797,7 +797,7 @@ static void ipv6_del_addr(struct inet6_ifaddr *ifp)
ip6_del_rt(rt);
rt = NULL;
} else if (!(rt->rt6i_flags & RTF_EXPIRES)) {
rt->rt6i_expires = expires;
rt->dst.expires = expires;
rt->rt6i_flags |= RTF_EXPIRES;
}
}
@ -1723,7 +1723,7 @@ static struct rt6_info *addrconf_get_prefix_route(const struct in6_addr *pfx,
if (!fn)
goto out;
for (rt = fn->leaf; rt; rt = rt->dst.rt6_next) {
if (rt->rt6i_dev->ifindex != dev->ifindex)
if (rt->dst.dev->ifindex != dev->ifindex)
continue;
if ((rt->rt6i_flags & flags) != flags)
continue;
@ -1881,11 +1881,11 @@ void addrconf_prefix_rcv(struct net_device *dev, u8 *opt, int len)
rt = NULL;
} else if (addrconf_finite_timeout(rt_expires)) {
/* not infinity */
rt->rt6i_expires = jiffies + rt_expires;
rt->dst.expires = jiffies + rt_expires;
rt->rt6i_flags |= RTF_EXPIRES;
} else {
rt->rt6i_flags &= ~RTF_EXPIRES;
rt->rt6i_expires = 0;
rt->dst.expires = 0;
}
} else if (valid_lft) {
clock_t expires = 0;

2
net/ipv6/anycast.c
View File

@ -83,7 +83,7 @@ int ipv6_sock_ac_join(struct sock *sk, int ifindex, const struct in6_addr *addr)
rt = rt6_lookup(net, addr, NULL, 0, 0);
if (rt) {
dev = rt->rt6i_dev;
dev = rt->dst.dev;
dst_release(&rt->dst);
} else if (ishost) {
err = -EADDRNOTAVAIL;

10
net/ipv6/ip6_fib.c
View File

@ -667,16 +667,16 @@ static int fib6_add_rt2node(struct fib6_node *fn, struct rt6_info *rt,
break;
}
if (iter->rt6i_dev == rt->rt6i_dev &&
if (iter->dst.dev == rt->dst.dev &&
iter->rt6i_idev == rt->rt6i_idev &&
ipv6_addr_equal(&iter->rt6i_gateway,
&rt->rt6i_gateway)) {
if (!(iter->rt6i_flags & RTF_EXPIRES))
return -EEXIST;
iter->rt6i_expires = rt->rt6i_expires;
iter->dst.expires = rt->dst.expires;
if (!(rt->rt6i_flags & RTF_EXPIRES)) {
iter->rt6i_flags &= ~RTF_EXPIRES;
iter->rt6i_expires = 0;
iter->dst.expires = 0;
}
return -EEXIST;
}
@ -1521,8 +1521,8 @@ static int fib6_age(struct rt6_info *rt, void *arg)
* only if they are not in use now.
*/
if (rt->rt6i_flags & RTF_EXPIRES && rt->rt6i_expires) {
if (time_after(now, rt->rt6i_expires)) {
if (rt->rt6i_flags & RTF_EXPIRES && rt->dst.expires) {
if (time_after(now, rt->dst.expires)) {
RT6_TRACE("expiring %p\n", rt);
return -1;
}

10
net/ipv6/ip6_tunnel.c
View File

@ -653,8 +653,8 @@ ip6ip6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
rt = rt6_lookup(dev_net(skb->dev), &ipv6_hdr(skb2)->saddr,
NULL, 0, 0);
if (rt && rt->rt6i_dev)
skb2->dev = rt->rt6i_dev;
if (rt && rt->dst.dev)
skb2->dev = rt->dst.dev;
icmpv6_send(skb2, rel_type, rel_code, rel_info);
@ -1185,11 +1185,11 @@ static void ip6_tnl_link_config(struct ip6_tnl *t)
if (rt == NULL)
return;
if (rt->rt6i_dev) {
dev->hard_header_len = rt->rt6i_dev->hard_header_len +
if (rt->dst.dev) {
dev->hard_header_len = rt->dst.dev->hard_header_len +
sizeof (struct ipv6hdr);
dev->mtu = rt->rt6i_dev->mtu - sizeof (struct ipv6hdr);
dev->mtu = rt->dst.dev->mtu - sizeof (struct ipv6hdr);
if (!(t->parms.flags & IP6_TNL_F_IGN_ENCAP_LIMIT))
dev->mtu-=8;

4
net/ipv6/mcast.c
View File

@ -162,7 +162,7 @@ int ipv6_sock_mc_join(struct sock *sk, int ifindex, const struct in6_addr *addr)
struct rt6_info *rt;
rt = rt6_lookup(net, addr, NULL, 0, 0);
if (rt) {
dev = rt->rt6i_dev;
dev = rt->dst.dev;
dst_release(&rt->dst);
}
} else
@ -256,7 +256,7 @@ static struct inet6_dev *ip6_mc_find_dev_rcu(struct net *net,
struct rt6_info *rt = rt6_lookup(net, group, NULL, 0, 0);
if (rt) {
dev = rt->rt6i_dev;
dev = rt->dst.dev;
dev_hold(dev);
dst_release(&rt->dst);
}

2
net/ipv6/ndisc.c
View File

@ -1258,7 +1258,7 @@ static void ndisc_router_discovery(struct sk_buff *skb)
}
if (rt)
rt->rt6i_expires = jiffies + (HZ * lifetime);
rt->dst.expires = jiffies + (HZ * lifetime);
if (ra_msg->icmph.icmp6_hop_limit) {
in6_dev->cnf.hop_limit = ra_msg->icmph.icmp6_hop_limit;

58
net/ipv6/route.c
View File

@ -314,7 +314,7 @@ static void ip6_dst_ifdown(struct dst_entry *dst, struct net_device *dev,
static __inline__ int rt6_check_expired(const struct rt6_info *rt)
{
return (rt->rt6i_flags & RTF_EXPIRES) &&
time_after(jiffies, rt->rt6i_expires);
time_after(jiffies, rt->dst.expires);
}
static inline int rt6_need_strict(const struct in6_addr *daddr)
@ -340,7 +340,7 @@ static inline struct rt6_info *rt6_device_match(struct net *net,
goto out;
for (sprt = rt; sprt; sprt = sprt->dst.rt6_next) {
struct net_device *dev = sprt->rt6i_dev;
struct net_device *dev = sprt->dst.dev;
if (oif) {
if (dev->ifindex == oif)
@ -401,7 +401,7 @@ static void rt6_probe(struct rt6_info *rt)
target = (struct in6_addr *)&neigh->primary_key;
addrconf_addr_solict_mult(target, &mcaddr);
ndisc_send_ns(rt->rt6i_dev, NULL, target, &mcaddr, NULL);
ndisc_send_ns(rt->dst.dev, NULL, target, &mcaddr, NULL);
} else {
read_unlock_bh(&neigh->lock);
}
@ -419,7 +419,7 @@ static inline void rt6_probe(struct rt6_info *rt)
*/
static inline int rt6_check_dev(struct rt6_info *rt, int oif)
{
struct net_device *dev = rt->rt6i_dev;
struct net_device *dev = rt->dst.dev;
if (!oif || dev->ifindex == oif)
return 2;
if ((dev->flags & IFF_LOOPBACK) &&
@ -538,7 +538,7 @@ static struct rt6_info *rt6_select(struct fib6_node *fn, int oif, int strict)
fn->rr_ptr = next;
}
net = dev_net(rt0->rt6i_dev);
net = dev_net(rt0->dst.dev);
return match ? match : net->ipv6.ip6_null_entry;
}
@ -607,7 +607,7 @@ int rt6_route_rcv(struct net_device *dev, u8 *opt, int len,
if (!addrconf_finite_timeout(lifetime)) {
rt->rt6i_flags &= ~RTF_EXPIRES;
} else {
rt->rt6i_expires = jiffies + HZ * lifetime;
rt->dst.expires = jiffies + HZ * lifetime;
rt->rt6i_flags |= RTF_EXPIRES;
}
dst_release(&rt->dst);
@ -709,7 +709,7 @@ static int __ip6_ins_rt(struct rt6_info *rt, struct nl_info *info)
int ip6_ins_rt(struct rt6_info *rt)
{
struct nl_info info = {
.nl_net = dev_net(rt->rt6i_dev),
.nl_net = dev_net(rt->dst.dev),
};
return __ip6_ins_rt(rt, &info);
}
@ -747,7 +747,7 @@ static struct rt6_info *rt6_alloc_cow(const struct rt6_info *ort,
retry:
if (rt6_bind_neighbour(rt)) {
struct net *net = dev_net(rt->rt6i_dev);
struct net *net = dev_net(rt->dst.dev);
int saved_rt_min_interval =
net->ipv6.sysctl.ip6_rt_gc_min_interval;
int saved_rt_elasticity =
@ -931,7 +931,7 @@ struct dst_entry *ip6_blackhole_route(struct net *net, struct dst_entry *dst_ori
rt->rt6i_idev = ort->rt6i_idev;
if (rt->rt6i_idev)
in6_dev_hold(rt->rt6i_idev);
rt->rt6i_expires = 0;
rt->dst.expires = 0;
rt->rt6i_gateway = ort->rt6i_gateway;
rt->rt6i_flags = ort->rt6i_flags & ~RTF_EXPIRES;
@ -1265,7 +1265,7 @@ int ip6_route_add(struct fib6_config *cfg)
}
rt->dst.obsolete = -1;
rt->rt6i_expires = (cfg->fc_flags & RTF_EXPIRES) ?
rt->dst.expires = (cfg->fc_flags & RTF_EXPIRES) ?
jiffies + clock_t_to_jiffies(cfg->fc_expires) :
0;
@ -1360,12 +1360,12 @@ int ip6_route_add(struct fib6_config *cfg)
if (!grt)
goto out;
if (dev) {
if (dev != grt->rt6i_dev) {
if (dev != grt->dst.dev) {
dst_release(&grt->dst);
goto out;
}
} else {
dev = grt->rt6i_dev;
dev = grt->dst.dev;
idev = grt->rt6i_idev;
dev_hold(dev);
in6_dev_hold(grt->rt6i_idev);
@ -1445,7 +1445,7 @@ static int __ip6_del_rt(struct rt6_info *rt, struct nl_info *info)
{
int err;
struct fib6_table *table;
struct net *net = dev_net(rt->rt6i_dev);
struct net *net = dev_net(rt->dst.dev);
if (rt == net->ipv6.ip6_null_entry)
return -ENOENT;
@ -1464,7 +1464,7 @@ static int __ip6_del_rt(struct rt6_info *rt, struct nl_info *info)
int ip6_del_rt(struct rt6_info *rt)
{
struct nl_info info = {
.nl_net = dev_net(rt->rt6i_dev),
.nl_net = dev_net(rt->dst.dev),
};
return __ip6_del_rt(rt, &info);
}
@ -1489,8 +1489,8 @@ static int ip6_route_del(struct fib6_config *cfg)
if (fn) {
for (rt = fn->leaf; rt; rt = rt->dst.rt6_next) {
if (cfg->fc_ifindex &&
(!rt->rt6i_dev ||
rt->rt6i_dev->ifindex != cfg->fc_ifindex))
(!rt->dst.dev ||
rt->dst.dev->ifindex != cfg->fc_ifindex))
continue;
if (cfg->fc_flags & RTF_GATEWAY &&
!ipv6_addr_equal(&cfg->fc_gateway, &rt->rt6i_gateway))
@ -1552,7 +1552,7 @@ restart:
continue;
if (!(rt->rt6i_flags & RTF_GATEWAY))
continue;
if (fl6->flowi6_oif != rt->rt6i_dev->ifindex)
if (fl6->flowi6_oif != rt->dst.dev->ifindex)
continue;
if (!ipv6_addr_equal(&rdfl->gateway, &rt->rt6i_gateway))
continue;
@ -1778,7 +1778,7 @@ void rt6_pmtu_discovery(const struct in6_addr *daddr, const struct in6_addr *sad
static struct rt6_info *ip6_rt_copy(const struct rt6_info *ort,
const struct in6_addr *dest)
{
struct net *net = dev_net(ort->rt6i_dev);
struct net *net = dev_net(ort->dst.dev);
struct rt6_info *rt = ip6_dst_alloc(&net->ipv6.ip6_dst_ops,
ort->dst.dev, 0);
@ -1795,7 +1795,7 @@ static struct rt6_info *ip6_rt_copy(const struct rt6_info *ort,
if (rt->rt6i_idev)
in6_dev_hold(rt->rt6i_idev);
rt->dst.lastuse = jiffies;
rt->rt6i_expires = 0;
rt->dst.expires = 0;
rt->rt6i_gateway = ort->rt6i_gateway;
rt->rt6i_flags = ort->rt6i_flags & ~RTF_EXPIRES;
@ -1829,7 +1829,7 @@ static struct rt6_info *rt6_get_route_info(struct net *net,
goto out;
for (rt = fn->leaf; rt; rt = rt->dst.rt6_next) {
if (rt->rt6i_dev->ifindex != ifindex)
if (rt->dst.dev->ifindex != ifindex)
continue;
if ((rt->rt6i_flags & (RTF_ROUTEINFO|RTF_GATEWAY)) != (RTF_ROUTEINFO|RTF_GATEWAY))
continue;
@ -1884,7 +1884,7 @@ struct rt6_info *rt6_get_dflt_router(const struct in6_addr *addr, struct net_dev
write_lock_bh(&table->tb6_lock);
for (rt = table->tb6_root.leaf; rt; rt=rt->dst.rt6_next) {
if (dev == rt->rt6i_dev &&
if (dev == rt->dst.dev &&
((rt->rt6i_flags & (RTF_ADDRCONF | RTF_DEFAULT)) == (RTF_ADDRCONF | RTF_DEFAULT)) &&
ipv6_addr_equal(&rt->rt6i_gateway, addr))
break;
@ -2128,7 +2128,7 @@ static int fib6_remove_prefsrc(struct rt6_info *rt, void *arg)
struct net *net = ((struct arg_dev_net_ip *)arg)->net;
struct in6_addr *addr = ((struct arg_dev_net_ip *)arg)->addr;
if (((void *)rt->rt6i_dev == dev || !dev) &&
if (((void *)rt->dst.dev == dev || !dev) &&
rt != net->ipv6.ip6_null_entry &&
ipv6_addr_equal(addr, &rt->rt6i_prefsrc.addr)) {
/* remove prefsrc entry */
@ -2158,7 +2158,7 @@ static int fib6_ifdown(struct rt6_info *rt, void *arg)
const struct arg_dev_net *adn = arg;
const struct net_device *dev = adn->dev;
if ((rt->rt6i_dev == dev || !dev) &&
if ((rt->dst.dev == dev || !dev) &&
rt != adn->net->ipv6.ip6_null_entry)
return -1;
@ -2211,7 +2211,7 @@ static int rt6_mtu_change_route(struct rt6_info *rt, void *p_arg)
also have the lowest MTU, TOO BIG MESSAGE will be lead to
PMTU discouvery.
*/
if (rt->rt6i_dev == arg->dev &&
if (rt->dst.dev == arg->dev &&
!dst_metric_locked(&rt->dst, RTAX_MTU) &&
(dst_mtu(&rt->dst) >= arg->mtu ||
(dst_mtu(&rt->dst) < arg->mtu &&
@ -2392,7 +2392,7 @@ static int rt6_fill_node(struct net *net,
rtm->rtm_type = RTN_UNREACHABLE;
else if (rt->rt6i_flags & RTF_LOCAL)
rtm->rtm_type = RTN_LOCAL;
else if (rt->rt6i_dev && (rt->rt6i_dev->flags & IFF_LOOPBACK))
else if (rt->dst.dev && (rt->dst.dev->flags & IFF_LOOPBACK))
rtm->rtm_type = RTN_LOCAL;
else
rtm->rtm_type = RTN_UNICAST;
@ -2460,14 +2460,14 @@ static int rt6_fill_node(struct net *net,
rcu_read_unlock();
if (rt->dst.dev)
NLA_PUT_U32(skb, RTA_OIF, rt->rt6i_dev->ifindex);
NLA_PUT_U32(skb, RTA_OIF, rt->dst.dev->ifindex);
NLA_PUT_U32(skb, RTA_PRIORITY, rt->rt6i_metric);
if (!(rt->rt6i_flags & RTF_EXPIRES))
expires = 0;
else if (rt->rt6i_expires - jiffies < INT_MAX)
expires = rt->rt6i_expires - jiffies;
else if (rt->dst.expires - jiffies < INT_MAX)
expires = rt->dst.expires - jiffies;
else
expires = INT_MAX;
@ -2661,7 +2661,7 @@ static int rt6_info_route(struct rt6_info *rt, void *p_arg)
seq_printf(m, " %08x %08x %08x %08x %8s\n",
rt->rt6i_metric, atomic_read(&rt->dst.__refcnt),
rt->dst.__use, rt->rt6i_flags,
rt->rt6i_dev ? rt->rt6i_dev->name : "");
rt->dst.dev ? rt->dst.dev->name : "");
return 0;
}

2
net/netfilter/ipvs/ip_vs_ctl.c
View File

@ -85,7 +85,7 @@ static int __ip_vs_addr_is_local_v6(struct net *net,
};
rt = (struct rt6_info *)ip6_route_output(net, NULL, &fl6);
if (rt && rt->rt6i_dev && (rt->rt6i_dev->flags & IFF_LOOPBACK))
if (rt && rt->dst.dev && (rt->dst.dev->flags & IFF_LOOPBACK))
return 1;
return 0;

2
net/netfilter/ipvs/ip_vs_xmit.c
View File

@ -207,7 +207,7 @@ __ip_vs_reroute_locally(struct sk_buff *skb)
static inline int __ip_vs_is_local_route6(struct rt6_info *rt)
{
return rt->rt6i_dev && rt->rt6i_dev->flags & IFF_LOOPBACK;
return rt->dst.dev && rt->dst.dev->flags & IFF_LOOPBACK;
}
static struct dst_entry *