diff options
| author | Sami Farin <safari-netfilter@safari.iki.fi> | 2007-03-15 02:43:00 +0300 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-04-26 09:25:53 +0400 |
| commit | 9b88790972498d235a2a4d2b66640c3c5b70bb7c (patch) | |
| tree | 51e615ef3f015fd213f69c1ae45249c194337655 | |
| parent | 8e87e014ec881ce353e1f43340157f519b5d9f30 (diff) | |
| download | linux-9b88790972498d235a2a4d2b66640c3c5b70bb7c.tar.xz | |
[NETFILTER]: nf_conntrack: use jhash2 in __hash_conntrack
Now it uses jhash, but using jhash2 would be around 3-4 times faster
(on P4).
Signed-off-by: Sami Farin <safari-netfilter@safari.iki.fi>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/netfilter/nf_conntrack_core.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c index 9858bcb29aa0..2b0cc7a1771c 100644 --- a/net/netfilter/nf_conntrack_core.c +++ b/net/netfilter/nf_conntrack_core.c @@ -128,10 +128,11 @@ static u_int32_t __hash_conntrack(const struct nf_conntrack_tuple *tuple, unsigned int size, unsigned int rnd) { unsigned int a, b; - a = jhash((void *)tuple->src.u3.all, sizeof(tuple->src.u3.all), - ((tuple->src.l3num) << 16) | tuple->dst.protonum); - b = jhash((void *)tuple->dst.u3.all, sizeof(tuple->dst.u3.all), - (tuple->src.u.all << 16) | tuple->dst.u.all); + + a = jhash2(tuple->src.u3.all, ARRAY_SIZE(tuple->src.u3.all), + (tuple->src.l3num << 16) | tuple->dst.protonum); + b = jhash2(tuple->dst.u3.all, ARRAY_SIZE(tuple->dst.u3.all), + (tuple->src.u.all << 16) | tuple->dst.u.all); return jhash_2words(a, b, rnd) % size; } |