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authorDavid S. Miller <davem@davemloft.net>2012-07-17 04:19:00 -0700
committerDavid S. Miller <davem@davemloft.net>2012-07-17 08:48:50 -0700
commit4895c771c7f006b4b90f9d6b1d2210939ba57b38 (patch)
tree66b132799e33a215b88bf3945965fefa7a0cde24 /net/sctp
parent6700c2709c08d74ae2c3c29b84a30da012dbc7f1 (diff)
downloadop-kernel-dev-4895c771c7f006b4b90f9d6b1d2210939ba57b38.zip
op-kernel-dev-4895c771c7f006b4b90f9d6b1d2210939ba57b38.tar.gz
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>
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