diff options
author | Dan Williams <dan.j.williams@intel.com> | 2017-04-12 21:59:01 -0700 |
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committer | Dan Williams <dan.j.williams@intel.com> | 2017-04-12 21:59:01 -0700 |
commit | bfca9acf1a5df0ff98fbf47e363adb48612bb7ec (patch) | |
tree | a50287c88fdc60a73912d205d7bce41b7af53827 /net/mpls/af_mpls.c | |
parent | 92a3fa075d3d2716b9c662814540f1d660cbf2f5 (diff) | |
parent | 11e63f6d920d6f2dfd3cd421e939a4aec9a58dcd (diff) | |
download | linux-bfca9acf1a5df0ff98fbf47e363adb48612bb7ec.tar.bz2 |
Merge branch 'for-4.11/libnvdimm' into for-4.12/dax
Diffstat (limited to 'net/mpls/af_mpls.c')
-rw-r--r-- | net/mpls/af_mpls.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/net/mpls/af_mpls.c b/net/mpls/af_mpls.c index 3818686182b2..6414079aa729 100644 --- a/net/mpls/af_mpls.c +++ b/net/mpls/af_mpls.c @@ -1269,6 +1269,8 @@ static void mpls_ifdown(struct net_device *dev, int event) { struct mpls_route __rcu **platform_label; struct net *net = dev_net(dev); + unsigned int nh_flags = RTNH_F_DEAD | RTNH_F_LINKDOWN; + unsigned int alive; unsigned index; platform_label = rtnl_dereference(net->mpls.platform_label); @@ -1278,9 +1280,11 @@ static void mpls_ifdown(struct net_device *dev, int event) if (!rt) continue; + alive = 0; change_nexthops(rt) { if (rtnl_dereference(nh->nh_dev) != dev) - continue; + goto next; + switch (event) { case NETDEV_DOWN: case NETDEV_UNREGISTER: @@ -1288,12 +1292,16 @@ static void mpls_ifdown(struct net_device *dev, int event) /* fall through */ case NETDEV_CHANGE: nh->nh_flags |= RTNH_F_LINKDOWN; - ACCESS_ONCE(rt->rt_nhn_alive) = rt->rt_nhn_alive - 1; break; } if (event == NETDEV_UNREGISTER) RCU_INIT_POINTER(nh->nh_dev, NULL); +next: + if (!(nh->nh_flags & nh_flags)) + alive++; } endfor_nexthops(rt); + + WRITE_ONCE(rt->rt_nhn_alive, alive); } } @@ -2028,6 +2036,7 @@ static void mpls_net_exit(struct net *net) for (index = 0; index < platform_labels; index++) { struct mpls_route *rt = rtnl_dereference(platform_label[index]); RCU_INIT_POINTER(platform_label[index], NULL); + mpls_notify_route(net, index, rt, NULL, NULL); mpls_rt_free(rt); } rtnl_unlock(); |