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authorStephen Hemminger <stephen.hemminger@vyatta.com>2008-01-22 21:57:22 -0800
committerDavid S. Miller <davem@davemloft.net>2008-01-28 15:11:01 -0800
commitd5ce8a0e97073169b5fe0b7c52bd020cdb017dfa (patch)
tree75784ea0b512945ecbcba8f198ece57aa219c412 /sound/i2c/tea6330t.c
parent9195bef7fb0ba0a91d5ffa566bcf8e007e3c7172 (diff)
[IPV4] fib_trie: avoid rescan on dump
This converts dumping (and flushing) of large route tables form O(N^2) to O(N). If the route dump took multiple pages then the dump routine gets called again. The old code kept track of location by counter, the new code instead uses the last key. This is a really big win ( 0.3 sec vs 12 sec) for big route tables. One side effect is that if the table changes during the dump, then the last key will not be found, and we will return -EBUSY. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'sound/i2c/tea6330t.c')
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