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authorDavid S. Miller <davem@davemloft.net>2010-12-08 21:16:57 -0800
committerDavid S. Miller <davem@davemloft.net>2010-12-09 10:46:36 -0800
commitdefb3519a64141608725e2dac5a5aa9a3c644bae (patch)
tree2f44985e44aef53a0d99991b9f5c2f0eb6dbf4ad /net/bridge
parent84b3cdc38cd2882d7ac3c2ae4b6faf5c199874e3 (diff)
net: Abstract away all dst_entry metrics accesses.
Use helper functions to hide all direct accesses, especially writes, to dst_entry metrics values. This will allow us to: 1) More easily change how the metrics are stored. 2) Implement COW for metrics. In particular this will help us put metrics into the inetpeer cache if that is what we end up doing. We can make the _metrics member a pointer instead of an array, initially have it point at the read-only metrics in the FIB, and then on the first set grab an inetpeer entry and point the _metrics member there. Signed-off-by: David S. Miller <davem@davemloft.net> Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Diffstat (limited to 'net/bridge')
-rw-r--r--net/bridge/br_device.c2
-rw-r--r--net/bridge/br_netfilter.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c
index 17cb0b63357..556443566e9 100644
--- a/net/bridge/br_device.c
+++ b/net/bridge/br_device.c
@@ -141,7 +141,7 @@ static int br_change_mtu(struct net_device *dev, int new_mtu)
#ifdef CONFIG_BRIDGE_NETFILTER
/* remember the MTU in the rtable for PMTU */
- br->fake_rtable.dst.metrics[RTAX_MTU - 1] = new_mtu;
+ dst_metric_set(&br->fake_rtable.dst, RTAX_MTU, new_mtu);
#endif
return 0;
diff --git a/net/bridge/br_netfilter.c b/net/bridge/br_netfilter.c
index 6e139209391..16f5c333596 100644
--- a/net/bridge/br_netfilter.c
+++ b/net/bridge/br_netfilter.c
@@ -124,7 +124,7 @@ void br_netfilter_rtable_init(struct net_bridge *br)
atomic_set(&rt->dst.__refcnt, 1);
rt->dst.dev = br->dev;
rt->dst.path = &rt->dst;
- rt->dst.metrics[RTAX_MTU - 1] = 1500;
+ dst_metric_set(&rt->dst, RTAX_MTU, 1500);
rt->dst.flags = DST_NOXFRM;
rt->dst.ops = &fake_dst_ops;
}