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[BRIDGE]: fix race on bridge del if

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This fixes the RCU race on bridge delete interface.  Basically,
the network device has to be detached from the bridge in the first
step (pre-RCU), rather than later. At that point, no more bridge traffic
will come in, and the other code will not think that network device
is part of a bridge.

This should also fix the XEN test problems.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Stephen Hemminger 2005-10-12 15:10:01 -07:00 committed by David S. Miller
parent eeb2b85606
commit ab4060e858
1 changed files with 1 additions and 1 deletions
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2
net/bridge/br_if.c
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@ -79,7 +79,6 @@ static void destroy_nbp(struct net_bridge_port *p)
{
struct net_device *dev = p->dev;
dev->br_port = NULL;
p->br = NULL;
p->dev = NULL;
dev_put(dev);
@ -100,6 +99,7 @@ static void del_nbp(struct net_bridge_port *p)
struct net_bridge *br = p->br;
struct net_device *dev = p->dev;
dev->br_port = NULL;
dev_set_promiscuity(dev, -1);
spin_lock_bh(&br->lock);