diff options
| author |   Sami Farin <safari-netfilter@safari.iki.fi> | 2007-03-14 16:43:00 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@sunset.davemloft.net> | 2007-04-25 22:25:53 -0700 |
| commit | 9b88790972498d235a2a4d2b66640c3c5b70bb7c (patch) | |
| tree | 51e615ef3f015fd213f69c1ae45249c194337655 /net/netfilter | |
| parent | [JHASH]: Use const in jhash2 (diff) | |
| download | linux-dev-9b88790972498d235a2a4d2b66640c3c5b70bb7c.tar.xz linux-dev-9b88790972498d235a2a4d2b66640c3c5b70bb7c.zip | |
[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>
Diffstat (limited to 'net/netfilter')
| -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; } |