diff options
| author | Denis V. Lunev <den@openvz.org> | 2008-04-16 02:02:18 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-04-16 02:02:18 -0700 |
| commit | f3005d7f4abe03ad41af33b1548602cd086d86a2 (patch) | |
| tree | 937c5b6ba6089f93fa4f0a11a37ab07a8564e398 | |
| parent | 3661a910836a509be65afc3c1e512d900e1280f9 (diff) | |
[NETNS]: Add netns refcnt debug for network devices.
dev_set_net is called for
- just allocated devices
- devices moving from one namespace to another
release_net has proper check inside to distinguish these cases.
Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | include/linux/netdevice.h | 3 | ||||
| -rw-r--r-- | net/core/dev.c | 2 |
2 files changed, 4 insertions, 1 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 8b17ed40dea2..7c1d4466583b 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -758,7 +758,8 @@ static inline void dev_net_set(struct net_device *dev, struct net *net) { #ifdef CONFIG_NET_NS - dev->nd_net = net; + release_net(dev->nd_net); + dev->nd_net = hold_net(net); #endif } diff --git a/net/core/dev.c b/net/core/dev.c index 7aa01125287e..77530e9a34fc 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -4042,6 +4042,8 @@ EXPORT_SYMBOL(alloc_netdev_mq); */ void free_netdev(struct net_device *dev) { + release_net(dev_net(dev)); + /* Compatibility with error handling in drivers */ if (dev->reg_state == NETREG_UNINITIALIZED) { kfree((char *)dev - dev->padded); |