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(parent: 2db2d67) | patch
ipv4: Calling ->cow_metrics() now is a bug.
authorDavid S. Miller <davem@davemloft.net>
Tue, 10 Jul 2012 14:08:18 +0000 (07:08 -0700)
committerDavid S. Miller <davem@davemloft.net>
Wed, 11 Jul 2012 05:40:17 +0000 (22:40 -0700)
commit312487313d4f7177cb751830e3d9c218e42ed59e
treefeac6ec40f28f12ea7bfee8cca2df719f1f22d50tree | snapshot
parent2db2d67e4cf6100249bad575d9c13c16fd7b06dccommit | diff
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>
net/ipv4/route.c diff | blob | blame | history
Linux 6.x block layer and io_uring tree(s)