linux-toradex.git/include/linux/notifier.h, branch v2.6.38.5

notifiers: __rcu annotations

2010-08-20T00:18:02+00:00

Signed-off-by: Arnd Bergmann 
Signed-off-by: Paul E. McKenney 
Cc: Alan Cox 
Reviewed-by: Josh Triplett

net: Fix NETDEV_NOTIFY_PEERS to not conflict with NETDEV_BONDING_DESLAVE.

2010-05-31T07:28:35+00:00

Signed-off-by: David S. Miller

arp_notify: allow drivers to explicitly request a notification event.

2010-05-31T07:27:44+00:00

Currently such notifications are only generated when the device comes up or the
address changes. However one use case for these notifications is to enable
faster network recovery after a virtual machine migration (by causing switches
to relearn their MAC tables). A migration appears to the network stack as a
temporary loss of carrier and therefore does not trigger either of the current
conditions. Rather than adding carrier up as a trigger (which can cause issues
when interfaces a flapping) simply add an interface which the driver can use
to explicitly trigger the notification.

Signed-off-by: Ian Campbell 
Cc: Stephen Hemminger 
Cc: Jeremy Fitzhardinge 
Cc: David S. Miller 
Cc: netdev@vger.kernel.org
Cc: stable@kernel.org
Signed-off-by: David S. Miller

notifier: change notifier_from_errno(0) to return NOTIFY_OK

2010-05-27T16:12:47+00:00

This changes notifier_from_errno(0) to be NOTIFY_OK instead of
NOTIFY_STOP_MASK | NOTIFY_OK.

Currently, the notifiers which return encapsulated errno value have to
do something like this:

	err = do_something(); // returns -errno
	if (err)
		return notifier_from_errno(err);
	else
		return NOTIFY_OK;

This change makes the above code simple:

	err = do_something(); // returns -errno

	return return notifier_from_errno(err);

Signed-off-by: Akinobu Mita 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

netpoll: add generic support for bridge and bonding devices

2010-05-06T07:47:21+00:00

This whole patchset is for adding netpoll support to bridge and bonding
devices. I already tested it for bridge, bonding, bridge over bonding,
and bonding over bridge. It looks fine now.

To make bridge and bonding support netpoll, we need to adjust
some netpoll generic code. This patch does the following things:

1) introduce two new priv_flags for struct net_device:
   IFF_IN_NETPOLL which identifies we are processing a netpoll;
   IFF_DISABLE_NETPOLL is used to disable netpoll support for a device
   at run-time;

2) introduce one new method for netdev_ops:
   ->ndo_netpoll_cleanup() is used to clean up netpoll when a device is
     removed.

3) introduce netpoll_poll_dev() which takes a struct net_device * parameter;
   export netpoll_send_skb() and netpoll_poll_dev() which will be used later;

4) hide a pointer to struct netpoll in struct netpoll_info, ditto.

5) introduce ->real_dev for struct netpoll.

6) introduce a new status NETDEV_BONDING_DESLAE, which is used to disable
   netconsole before releasing a slave, to avoid deadlocks.

Cc: David Miller 
Cc: Neil Horman 
Signed-off-by: WANG Cong 
Signed-off-by: David S. Miller

net: rtnetlink: ignore NETDEV_PRE_TYPE_CHANGE in rtnetlink_event()

2010-03-22T01:31:34+00:00

Ignore the new NETDEV_PRE_TYPE_CHANGE event in rtnetlink_event() since
there have been no changes userspace needs to be notified of.

Also add a comment to the netdev notifier event definitions to remind
people to update the exclusion list when adding new event types.

Signed-off-by: Patrick McHardy 
Signed-off-by: David S. Miller

net: rename notifier defines for netdev type change

2010-03-19T03:00:01+00:00

Since generally there could be more netdevices changing type other
than bonding, making this event type name "bonding-unrelated"

Signed-off-by: Jiri Pirko 
Signed-off-by: David S. Miller

net: NETDEV_UNREGISTER_PERNET -> NETDEV_UNREGISTER_BATCH

2009-12-02T00:15:50+00:00

The motivation for an additional notifier in batched netdevice
notification (rt_do_flush) only needs to be called once per batch not
once per namespace.

For further batching improvements I need a guarantee that the
netdevices are unregistered in order allowing me to unregister an all
of the network devices in a network namespace at the same time with
the guarantee that the loopback device is really and truly
unregistered last.

Additionally it appears that we moved the route cache flush after
the final synchronize_net, which seems wrong and there was no
explanation.  So I have restored the original location of the final
synchronize_net.

Cc: Octavian Purdila 
Signed-off-by: Eric W. Biederman 
Signed-off-by: David S. Miller

net: introduce NETDEV_UNREGISTER_PERNET

2009-11-18T13:03:03+00:00

This new event is called once for each unique net namespace in batched
unregister operations (with the argument set to a random device from
that namespace) and once per device in non-batched unregister
operations.

It allows us to factorize some device unregister work such as clearing the
routing cache.

Signed-off-by: Octavian Purdila 
Signed-off-by: David S. Miller

net: introduce NETDEV_POST_INIT notifier

2009-10-05T07:43:34+00:00

For various purposes including a wireless extensions
bugfix, we need to hook into the netdev creation before
before netdev_register_kobject(). This will also ease
doing the dev type assignment that Marcel was working
on for cfg80211 drivers w/o touching them all.

Signed-off-by: Johannes Berg 
Signed-off-by: Marcel Holtmann 
Signed-off-by: David S. Miller