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bonding: add __bond_next_slave() which uses neighbours

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Add a new function, __bond_next_slave(), which uses neighbours to find the
next slave after the slave provided. It will be further used to gradually
go start using neighbour netdev_adjacent infrastructure instead of
bonding's own lists.

CC: Jay Vosburgh <fubar@us.ibm.com>
CC: Andy Gospodarek <andy@greyhouse.net>
CC: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Veaceslav Falico
2013-09-25 09:20:26 +02:00
committed by David S. Miller
parent c8c23903f1
commit 18e1e9bc5d
1 changed files with 28 additions and 0 deletions
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28
drivers/net/bonding/bonding.h
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@@ -249,6 +249,34 @@ struct bonding {
#define bond_slave_get_rtnl(dev) \ #define bond_slave_get_rtnl(dev) \
((struct slave *) rtnl_dereference(dev->rx_handler_data)) ((struct slave *) rtnl_dereference(dev->rx_handler_data))
/**
* __bond_next_slave - get the next slave after the one provided
* @bond - bonding struct
* @slave - the slave provided
*
* Returns the next slave after the slave provided, first slave if the
* slave provided is the last slave and NULL if slave is not found
*/
static inline struct slave *__bond_next_slave(struct bonding *bond,
struct slave *slave)
{
struct slave *slave_iter;
struct list_head *iter;
bool found = false;
netdev_for_each_lower_private(bond->dev, slave_iter, iter) {
if (found)
return slave_iter;
if (slave_iter == slave)
found = true;
}
if (found)
return bond_first_slave(bond);
return NULL;
}
/** /**
* Returns NULL if the net_device does not belong to any of the bond's slaves * Returns NULL if the net_device does not belong to any of the bond's slaves
* *