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ipv6: Change rt6_probe to take a fib6_nh 

rt6_probe sends probes for gateways in a nexthop. As such it really
depends on a fib6_nh, not a fib entry. Move last_probe to fib6_nh and
update rt6_probe to a fib6_nh struct.

Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David Ahern 2019-04-09 14:41:12 -07:00 коммит произвёл David S. Miller
Родитель 6e1809a564
Коммит cc3a86c802
2 изменённых файлов: 12 добавлений и 12 удалений
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8
include/net/ip6_fib.h
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@ -127,6 +127,10 @@ struct rt6_exception {
struct fib6_nh {
struct fib_nh_common nh_common;
#ifdef CONFIG_IPV6_ROUTER_PREF
unsigned long last_probe;
#endif
};
struct fib6_info {
@ -155,10 +159,6 @@ struct fib6_info {
struct rt6_info * __percpu *rt6i_pcpu;
struct rt6_exception_bucket __rcu *rt6i_exception_bucket;
#ifdef CONFIG_IPV6_ROUTER_PREF
unsigned long last_probe;
#endif
u32 fib6_metric;
u8 fib6_protocol;
u8 fib6_type;

16
net/ipv6/route.c
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@ -517,7 +517,7 @@ static void rt6_probe_deferred(struct work_struct *w)
kfree(work);
}
static void rt6_probe(struct fib6_info *rt)
static void rt6_probe(struct fib6_nh *fib6_nh)
{
struct __rt6_probe_work *work = NULL;
const struct in6_addr *nh_gw;
@ -533,11 +533,11 @@ static void rt6_probe(struct fib6_info *rt)
* Router Reachability Probe MUST be rate-limited
* to no more than one per minute.
*/
if (!rt || !rt->fib6_nh.fib_nh_gw_family)
if (fib6_nh->fib_nh_gw_family)
return;
nh_gw = &rt->fib6_nh.fib_nh_gw6;
dev = rt->fib6_nh.fib_nh_dev;
nh_gw = &fib6_nh->fib_nh_gw6;
dev = fib6_nh->fib_nh_dev;
rcu_read_lock_bh();
idev = __in6_dev_get(dev);
neigh = __ipv6_neigh_lookup_noref(dev, nh_gw);
@ -554,13 +554,13 @@ static void rt6_probe(struct fib6_info *rt)
__neigh_set_probe_once(neigh);
}
write_unlock(&neigh->lock);
} else if (time_after(jiffies, rt->last_probe +
} else if (time_after(jiffies, fib6_nh->last_probe +
idev->cnf.rtr_probe_interval)) {
work = kmalloc(sizeof(*work), GFP_ATOMIC);
}
if (work) {
rt->last_probe = jiffies;
fib6_nh->last_probe = jiffies;
INIT_WORK(&work->work, rt6_probe_deferred);
work->target = *nh_gw;
dev_hold(dev);
@ -572,7 +572,7 @@ out:
rcu_read_unlock_bh();
}
#else
static inline void rt6_probe(struct fib6_info *rt)
static inline void rt6_probe(struct fib6_nh *fib6_nh)
{
}
#endif
@ -657,7 +657,7 @@ static struct fib6_info *find_match(struct fib6_info *rt, int oif, int strict,
}
if (strict & RT6_LOOKUP_F_REACHABLE)
rt6_probe(rt);
rt6_probe(&rt->fib6_nh);
/* note that m can be RT6_NUD_FAIL_PROBE at this point */
if (m > *mpri) {