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net/core: add NETDEV_BONDING_FAILOVER event

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Add NETDEV_BONDING_FAILOVER event to be used in a successive patch
by bonding to announce fail-over for the active-backup mode through the
netdev events notifier chain mechanism. Such an event can be of use for the
RDMA CM (communication manager) to let native RDMA ULPs (eg NFS-RDMA, iSER)
always be aligned with the IP stack, in the sense that they use the same
ports/links as the stack does. More usages can be done to allow monitoring
tools based on netlink events being aware to bonding fail-over.

Signed-off-by: Or Gerlitz <ogerlitz@voltaire.com>
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This commit is contained in:
Or Gerlitz
2008-06-13 18:12:00 -07:00
committed by Jeff Garzik
parent 743d32ad36
commit c1da4ac752
3 changed files with 8 additions and 0 deletions
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6
net/core/dev.c
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@@ -961,6 +961,12 @@ void netdev_state_change(struct net_device *dev)
}
}
void netdev_bonding_change(struct net_device *dev)
{
call_netdevice_notifiers(NETDEV_BONDING_FAILOVER, dev);
}
EXPORT_SYMBOL(netdev_bonding_change);
/**
* dev_load - load a network module
* @net: the applicable net namespace