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Jamal Hadi Salim authored
On a system with a lot of SAs, counting SAD entries chews useful CPU time since you need to dump the whole SAD to user space; i.e something like ip xfrm state ls | grep -i src | wc -l I have seen taking literally minutes on a 40K SAs when the system is swapping. With this patch, some of the SAD info (that was already being tracked) is exposed to user space. i.e you do: ip xfrm state count And you get the count; you can also pass -s to the command line and get the hash info. Signed-off-by:
Jamal Hadi Salim <hadi@cyberus.ca> Signed-off-by:
David S. Miller <davem@davemloft.net>
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