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Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jesse/openvswitch

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Jesse Gross says:

====================
One patch for net/3.12 fixing an issue where devices could be in an
invalid state they are removed while still attached to OVS.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2013-10-29 17:36:39 -04:00
commit 911aeb1084
3 changed files with 20 additions and 6 deletions
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7
net/openvswitch/dp_notify.c
View File

@ -65,8 +65,7 @@ void ovs_dp_notify_wq(struct work_struct *work)
continue;
netdev_vport = netdev_vport_priv(vport);
if (netdev_vport->dev->reg_state == NETREG_UNREGISTERED ||
netdev_vport->dev->reg_state == NETREG_UNREGISTERING)
if (!(netdev_vport->dev->priv_flags & IFF_OVS_DATAPATH))
dp_detach_port_notify(vport);
}
}
@ -88,6 +87,10 @@ static int dp_device_event(struct notifier_block *unused, unsigned long event,
return NOTIFY_DONE;
if (event == NETDEV_UNREGISTER) {
/* upper_dev_unlink and decrement promisc immediately */
ovs_netdev_detach_dev(vport);
/* schedule vport destroy, dev_put and genl notification */
ovs_net = net_generic(dev_net(dev), ovs_net_id);
queue_work(system_wq, &ovs_net->dp_notify_work);
}

18
net/openvswitch/vport-netdev.c
View File

@ -150,15 +150,25 @@ static void free_port_rcu(struct rcu_head *rcu)
ovs_vport_free(vport_from_priv(netdev_vport));
}
void ovs_netdev_detach_dev(struct vport *vport)
{
struct netdev_vport *netdev_vport = netdev_vport_priv(vport);
ASSERT_RTNL();
netdev_vport->dev->priv_flags &= ~IFF_OVS_DATAPATH;
netdev_rx_handler_unregister(netdev_vport->dev);
netdev_upper_dev_unlink(netdev_vport->dev,
netdev_master_upper_dev_get(netdev_vport->dev));
dev_set_promiscuity(netdev_vport->dev, -1);
}
static void netdev_destroy(struct vport *vport)
{
struct netdev_vport *netdev_vport = netdev_vport_priv(vport);
rtnl_lock();
netdev_vport->dev->priv_flags &= ~IFF_OVS_DATAPATH;
netdev_rx_handler_unregister(netdev_vport->dev);
netdev_upper_dev_unlink(netdev_vport->dev, get_dpdev(vport->dp));
dev_set_promiscuity(netdev_vport->dev, -1);
if (netdev_vport->dev->priv_flags & IFF_OVS_DATAPATH)
ovs_netdev_detach_dev(vport);
rtnl_unlock();
call_rcu(&netdev_vport->rcu, free_port_rcu);

1
net/openvswitch/vport-netdev.h
View File

@ -39,5 +39,6 @@ netdev_vport_priv(const struct vport *vport)
}
const char *ovs_netdev_get_name(const struct vport *);
void ovs_netdev_detach_dev(struct vport *);
#endif /* vport_netdev.h */