| commit | 4895c771c7f006b4b90f9d6b1d2210939ba57b38 | [log] [tgz] |
|---|---|---|
| author | David S. Miller <davem@davemloft.net> | Tue Jul 17 04:19:00 2012 -0700 |
| committer | David S. Miller <davem@davemloft.net> | Tue Jul 17 08:48:50 2012 -0700 |
| tree | 66b132799e33a215b88bf3945965fefa7a0cde24 | |
| parent | 6700c2709c08d74ae2c3c29b84a30da012dbc7f1 [diff] |
ipv4: Add FIB nexthop exceptions. In a regime where we have subnetted route entries, we need a way to store persistent storage about destination specific learned values such as redirects and PMTU values. This is implemented here via nexthop exceptions. The initial implementation is a 2048 entry hash table with relaiming starting at chain length 5. A more sophisticated scheme can be devised if that proves necessary. Signed-off-by: David S. Miller <davem@davemloft.net>