xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

net/bonding: Notify state change on slaves

Browse Source 
Use notifier chain to dispatch an event upon a change in slave state.
Event is dispatched with slave specific info.

Signed-off-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Moni Shoua
2015-02-03 16:48:31 +02:00
committed by David S. Miller
parent 69a2338e05
commit 69e6113343
2 changed files with 54 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

42
drivers/net/bonding/bond_main.c
View File

@@ -1196,6 +1196,47 @@ static void bond_fill_ifslave(struct slave *slave, struct ifslave *info)
info->link_failure_count = slave->link_failure_count;
}
static void bond_netdev_notify(struct slave *slave, struct net_device *dev)
{
struct bonding *bond = slave->bond;
struct netdev_bonding_info bonding_info;
rtnl_lock();
/* make sure that slave is still valid */
if (dev->priv_flags & IFF_BONDING) {
bond_fill_ifslave(slave, &bonding_info.slave);
bond_fill_ifbond(bond, &bonding_info.master);
netdev_bonding_info_change(slave->dev, &bonding_info);
}
rtnl_unlock();
}
static void bond_netdev_notify_work(struct work_struct *_work)
{
struct netdev_notify_work *w =
container_of(_work, struct netdev_notify_work, work.work);
bond_netdev_notify(w->slave, w->dev);
dev_put(w->dev);
}
void bond_queue_slave_event(struct slave *slave)
{
struct netdev_notify_work *nnw = kzalloc(sizeof(*nnw), GFP_ATOMIC);
if (!nnw)
return;
INIT_DELAYED_WORK(&nnw->work, bond_netdev_notify_work);
nnw->slave = slave;
nnw->dev = slave->dev;
if (queue_delayed_work(slave->bond->wq, &nnw->work, 0))
dev_hold(slave->dev);
else
kfree(nnw);
}
/* enslave device <slave> to bond device <master> */
int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
{
@@ -1590,6 +1631,7 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
new_slave->link != BOND_LINK_DOWN ? "an up" : "a down");
/* enslave is successful */
bond_queue_slave_event(new_slave);
return 0;
/* Undo stages on error */