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| author | David S. Miller <davem@davemloft.net> | 2010-12-14 13:01:14 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-12-14 13:01:14 -0800 |
| commit | d33e455337ea2c71d09d7f4367d6ad6dd32b6965 (patch) | |
| tree | d1b35b1be5ab73df6f7e57b86a2e68fad2990adf /include/net/dst_ops.h | |
| parent | 9fe146aef44afe5ec677d8150b6ae94e09b773f7 (diff) | |
| download | lwn-d33e455337ea2c71d09d7f4367d6ad6dd32b6965.tar.gz lwn-d33e455337ea2c71d09d7f4367d6ad6dd32b6965.zip | |
net: Abstract default MTU metric calculation behind an accessor.
Like RTAX_ADVMSS, make the default calculation go through a dst_ops
method rather than caching the computation in the routing cache
entries.
Now dst metrics are pretty much left as-is when new entries are
created, thus optimizing metric sharing becomes a real possibility.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/dst_ops.h')
| -rw-r--r-- | include/net/dst_ops.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/net/dst_ops.h b/include/net/dst_ops.h index 15fb7af08c42..21a320b8708e 100644 --- a/include/net/dst_ops.h +++ b/include/net/dst_ops.h @@ -17,6 +17,7 @@ struct dst_ops { int (*gc)(struct dst_ops *ops); struct dst_entry * (*check)(struct dst_entry *, __u32 cookie); unsigned int (*default_advmss)(const struct dst_entry *); + unsigned int (*default_mtu)(const struct dst_entry *); void (*destroy)(struct dst_entry *); void (*ifdown)(struct dst_entry *, struct net_device *dev, int how); |