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| author | Jens Axboe <axboe@fb.com> | 2017-04-07 12:45:20 -0600 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2017-04-07 12:45:20 -0600 |
| commit | 65f619d2535197d97067eeeef75a40f25b552e69 (patch) | |
| tree | 13f96c51a2b591ed22f1771541998bb77178f685 /net/mpls/af_mpls.c | |
| parent | fbbaf700e7b163a0f1704b2d542ee28be11fce21 (diff) | |
| parent | 6d8c6c0f97ad8a3517c42b179c1dc8e77397d0e2 (diff) | |
| download | linux-0-day-65f619d2535197d97067eeeef75a40f25b552e69.tar.gz linux-0-day-65f619d2535197d97067eeeef75a40f25b552e69.tar.xz | |
Merge branch 'for-linus' into for-4.12/block
We've added a considerable amount of fixes for stalls and issues
with the blk-mq scheduling in the 4.11 series since forking
off the for-4.12/block branch. We need to do improvements on
top of that for 4.12, so pull in the previous fixes to make
our lives easier going forward.
Signed-off-by: Jens Axboe <axboe@fb.com>
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 33211f9a26560..6414079aa7297 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); } } |