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| author | huaibin Wang <huaibin.wang@6wind.com> | 2015-08-25 16:20:34 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-10-01 11:36:22 +0200 |
| commit | a4240b5e7ac9f3718bd836471a27a212489585ac (patch) | |
| tree | 962fa29ce2893c099d6ce02ce225b65886cf127a | |
| parent | f8952cdcb1bfd3c612ecb8a2e21ea9324ffd93db (diff) | |
| download | lwn-a4240b5e7ac9f3718bd836471a27a212489585ac.tar.gz lwn-a4240b5e7ac9f3718bd836471a27a212489585ac.zip | |
ip6_gre: release cached dst on tunnel removal
[ Upstream commit d4257295ba1b389c693b79de857a96e4b7cd8ac0 ]
When a tunnel is deleted, the cached dst entry should be released.
This problem may prevent the removal of a netns (seen with a x-netns IPv6
gre tunnel):
unregister_netdevice: waiting for lo to become free. Usage count = 3
CC: Dmitry Kozlov <xeb@mail.ru>
Fixes: c12b395a4664 ("gre: Support GRE over IPv6")
Signed-off-by: huaibin Wang <huaibin.wang@6wind.com>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | net/ipv6/ip6_gre.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c index 4a230b18dfe3..baffa3b7a328 100644 --- a/net/ipv6/ip6_gre.c +++ b/net/ipv6/ip6_gre.c @@ -357,6 +357,7 @@ static void ip6gre_tunnel_uninit(struct net_device *dev) struct ip6gre_net *ign = net_generic(net, ip6gre_net_id); ip6gre_tunnel_unlink(ign, netdev_priv(dev)); + ip6_tnl_dst_reset(netdev_priv(dev)); dev_put(dev); } |