ipv6: speedup inet6_dump_ifinfo()

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When handling large number of netdevice, inet6_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, and RCU lookups.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Eric Dumazet 2009-11-09 12:11:28 +00:00 • committed by David S. Miller

parent 13cfa97bef

commit 84d2697d96

1 changed files with 28 additions and 17 deletions

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net/ipv6/addrconf.c

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