diff options
| author | Wei Wang <weiwan@google.com> | 2017-10-06 22:05:56 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-10-07 23:22:57 +0300 |
| commit | 180ca444b985c42948fa26abd278e616b5ce7eb2 (patch) | |
| tree | 16d38f12c42cf71c0e38aaf052701645b7b1abf0 /net | |
| parent | 0d7b70e83642f01c451a52faa3908e7b054ff7c6 (diff) | |
| download | linux-180ca444b985c42948fa26abd278e616b5ce7eb2.tar.xz | |
ipv6: introduce a new function fib6_update_sernum()
This function takes a route as input and tries to update the sernum in
the fib6_node this route is associated with. It will be used in later
commit when adding a cached route into the exception table under that
route.
Signed-off-by: Wei Wang <weiwan@google.com>
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/ipv6/ip6_fib.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c index e5308d7cbd75..0ba4fbb2f855 100644 --- a/net/ipv6/ip6_fib.c +++ b/net/ipv6/ip6_fib.c @@ -110,6 +110,20 @@ enum { FIB6_NO_SERNUM_CHANGE = 0, }; +void fib6_update_sernum(struct rt6_info *rt) +{ + struct fib6_table *table = rt->rt6i_table; + struct net *net = dev_net(rt->dst.dev); + struct fib6_node *fn; + + write_lock_bh(&table->tb6_lock); + fn = rcu_dereference_protected(rt->rt6i_node, + lockdep_is_held(&table->tb6_lock)); + if (fn) + fn->fn_sernum = fib6_new_sernum(net); + write_unlock_bh(&table->tb6_lock); +} + /* * Auxiliary address test functions for the radix tree. * |