diff options
| author | Ido Schimmel <idosch@mellanox.com> | 2018-01-07 12:45:02 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-01-07 21:29:39 -0500 |
| commit | 2b2413610ef6fc9df9ad003b02fecc3a8057231e (patch) | |
| tree | e4e88d806e5d969859a11baa5475687d0015c752 /net/ipv6 | |
| parent | 9fcb0714dc38250d3b56d28c0b5a0bde0d2a59f2 (diff) | |
ipv6: Mark dead nexthops with appropriate flags
When a netdev is put administratively down or unregistered all the
nexthops using it as their nexthop device should be marked with the
'dead' and 'linkdown' flags.
Currently, when a route is dumped its nexthop device is tested and the
flags are set accordingly. A similar check is performed during route
lookup.
Instead, we can simply mark the nexthops based on netdev events and
avoid checking the netdev's state during route dump and lookup.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Acked-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6')
| -rw-r--r-- | net/ipv6/route.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/net/ipv6/route.c b/net/ipv6/route.c index c557362daa23..f5eda0aeab55 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -3473,8 +3473,10 @@ static int fib6_ifdown(struct rt6_info *rt, void *arg) if (rt->dst.dev == dev && rt != adn->net->ipv6.ip6_null_entry && (rt->rt6i_nsiblings == 0 || netdev_unregistering(dev) || - !rt->rt6i_idev->cnf.ignore_routes_with_linkdown)) + !rt->rt6i_idev->cnf.ignore_routes_with_linkdown)) { + rt->rt6i_nh_flags |= (RTNH_F_DEAD | RTNH_F_LINKDOWN); return -1; + } return 0; } |