From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Thu, 22 Oct 2009 16:34:41 +0200

quoted text
> When handling large number of netdevice, rtnl_dump_ifinfo()
> is very slow because it has O(N^2) complexity.
> 
> Instead of scanning one single list, we can use the 256 sub lists
> of the dev_index hash table.
> 
> This considerably speedups "ip link" operations
> 
> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>

Applied, thanks!
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