diff options
| author |   Eric Dumazet <edumazet@google.com> | 2021-12-04 20:22:03 -0800 |
|---|---|---|
| committer |   Jakub Kicinski <kuba@kernel.org> | 2021-12-06 16:05:10 -0800 |
| commit | 9038c320001dd07f60736018edf608ac5baca0ab (patch) | |
| tree | fea21a92f9a586370c4c85a5aab4adca4c160e7f /net/ipv4/route.c | |
| parent | drop_monitor: add net device refcount tracker (diff) | |
| download | linux-dev-9038c320001dd07f60736018edf608ac5baca0ab.tar.xz linux-dev-9038c320001dd07f60736018edf608ac5baca0ab.zip | |
net: dst: add net device refcount tracking to dst_entry
We want to track all dev_hold()/dev_put() to ease leak hunting.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/ipv4/route.c')
| -rw-r--r-- | net/ipv4/route.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/net/ipv4/route.c b/net/ipv4/route.c index 243a0c52be42..843a7a3699fe 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -1531,8 +1531,9 @@ void rt_flush_dev(struct net_device *dev) if (rt->dst.dev != dev) continue; rt->dst.dev = blackhole_netdev; - dev_hold(rt->dst.dev); - dev_put(dev); + dev_replace_track(dev, blackhole_netdev, + &rt->dst.dev_tracker, + GFP_ATOMIC); } spin_unlock_bh(&ul->lock); } @@ -2819,7 +2820,7 @@ struct dst_entry *ipv4_blackhole_route(struct net *net, struct dst_entry *dst_or new->output = dst_discard_out; new->dev = net->loopback_dev; - dev_hold(new->dev); + dev_hold_track(new->dev, &new->dev_tracker, GFP_ATOMIC); rt->rt_is_input = ort->rt_is_input; rt->rt_iif = ort->rt_iif; |