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| H A D | route.c | diff 312487313d4f7177cb751830e3d9c218e42ed59e Tue Jul 10 16:08:18 CEST 2012 David S. Miller <davem@davemloft.net> ipv4: Calling ->cow_metrics() now is a bug.
Nothing every writes to ipv4 metrics any longer.
PMTU is stored in rt->rt_pmtu.
Dynamic TCP metrics are stored in a special TCP metrics cache,
completely outside of the routes.
Therefore ->cow_metrics() can simply nothing more than a WARN_ON
trigger so we can catch anyone who tries to add new writes to
ipv4 route metrics.
Signed-off-by: David S. Miller <davem@davemloft.net>
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