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bonding, net: Move last_rx update into bonding recv logic

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The only user of the net_device->last_rx field is bonding.
This patch adds a conditional update of last_rx to the bonding special
logic in skb_bond_should_drop, causing last_rx to only be updated when
the ARP monitor is running.

	This frees network device drivers from the necessity of
updating last_rx, which can have cache line thrash issues.

Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jay Vosburgh
2008-11-03 18:16:50 -08:00
committed by David S. Miller
parent 24f8b2385e
commit 6cf3f41e6c
4 changed files with 23 additions and 13 deletions
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30
include/linux/netdevice.h
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@ -1742,22 +1742,26 @@ static inline int skb_bond_should_drop(struct sk_buff *skb)
struct net_device *dev = skb->dev;
struct net_device *master = dev->master;
if (master &&
(dev->priv_flags & IFF_SLAVE_INACTIVE)) {
if ((dev->priv_flags & IFF_SLAVE_NEEDARP) &&
skb->protocol == __constant_htons(ETH_P_ARP))
return 0;
if (master) {
if (master->priv_flags & IFF_MASTER_ARPMON)
dev->last_rx = jiffies;
if (master->priv_flags & IFF_MASTER_ALB) {
if (skb->pkt_type != PACKET_BROADCAST &&
skb->pkt_type != PACKET_MULTICAST)
if (dev->priv_flags & IFF_SLAVE_INACTIVE) {
if ((dev->priv_flags & IFF_SLAVE_NEEDARP) &&
skb->protocol == __constant_htons(ETH_P_ARP))
return 0;
}
if (master->priv_flags & IFF_MASTER_8023AD &&
skb->protocol == __constant_htons(ETH_P_SLOW))
return 0;
return 1;
if (master->priv_flags & IFF_MASTER_ALB) {
if (skb->pkt_type != PACKET_BROADCAST &&
skb->pkt_type != PACKET_MULTICAST)
return 0;
}
if (master->priv_flags & IFF_MASTER_8023AD &&
skb->protocol == __constant_htons(ETH_P_SLOW))
return 0;
return 1;
}
}
return 0;
}