diff options
author | Dave Airlie <airlied@redhat.com> | 2017-03-28 10:34:19 +0300 |
---|---|---|
committer | Dave Airlie <airlied@redhat.com> | 2017-03-28 10:34:19 +0300 |
commit | e5c1ff14757afe21733ddee9cc4bbaeaeadbf803 (patch) | |
tree | 0da1c9aaf772fac30fe68590a4ca1c3dd439cebd /net/mpls/af_mpls.c | |
parent | 65d1086c44791112188f6aebbdc3a27cab3736d3 (diff) | |
parent | c02ed2e75ef4c74e41e421acb4ef1494671585e8 (diff) | |
download | linux-e5c1ff14757afe21733ddee9cc4bbaeaeadbf803.tar.xz |
Backmerge tag 'v4.11-rc4' into drm-next
Linux 4.11-rc4
The i915 GVT team need the rc4 code to base some more code on.
Diffstat (limited to 'net/mpls/af_mpls.c')
-rw-r--r-- | net/mpls/af_mpls.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/net/mpls/af_mpls.c b/net/mpls/af_mpls.c index 33211f9a2656..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: @@ -1288,13 +1292,16 @@ static void mpls_ifdown(struct net_device *dev, int event) /* fall through */ case NETDEV_CHANGE: nh->nh_flags |= RTNH_F_LINKDOWN; - if (event != NETDEV_UNREGISTER) - 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); } } |