[IPV4] fib_trie: fix duplicated route issue
authorJoonwoo Park <joonwpark81@gmail.com>
Fri, 18 Jan 2008 11:45:18 +0000 (03:45 -0800)
committerDavid S. Miller <davem@davemloft.net>
Mon, 21 Jan 2008 04:31:38 +0000 (20:31 -0800)
http://bugzilla.kernel.org/show_bug.cgi?id=9493

The fib allows making identical routes with 'ip route replace'.
This patch makes the fib return -EEXIST if replacement would cause duplication.

Signed-off-by: Joonwoo Park <joonwpark81@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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