diff options
| -rw-r--r-- | target/linux/generic-2.6/patches-2.6.25/950-revert_conntrack_optimization.patch | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/target/linux/generic-2.6/patches-2.6.25/950-revert_conntrack_optimization.patch b/target/linux/generic-2.6/patches-2.6.25/950-revert_conntrack_optimization.patch new file mode 100644 index 000000000..c146809f4 --- /dev/null +++ b/target/linux/generic-2.6/patches-2.6.25/950-revert_conntrack_optimization.patch @@ -0,0 +1,29 @@ +--- linux-2.6.25/net/netfilter/nf_conntrack_core.c 2008-04-17 04:49:44.000000000 +0200 ++++ linux-2.6.25-owrt/net/netfilter/nf_conntrack_core.c 2008-04-30 12:36:55.000000000 +0200 +@@ -73,19 +73,15 @@ + static u_int32_t __hash_conntrack(const struct nf_conntrack_tuple *tuple, + unsigned int size, unsigned int rnd) + { +- unsigned int n; +- u_int32_t h; ++ unsigned int a, b; + +- /* The direction must be ignored, so we hash everything up to the +- * destination ports (which is a multiple of 4) and treat the last +- * three bytes manually. +- */ +- n = (sizeof(tuple->src) + sizeof(tuple->dst.u3)) / sizeof(u32); +- h = jhash2((u32 *)tuple, n, +- rnd ^ (((__force __u16)tuple->dst.u.all << 16) | +- tuple->dst.protonum)); ++ 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), ++ ((__force __u16)tuple->src.u.all << 16) | ++ (__force __u16)tuple->dst.u.all); + +- return ((u64)h * size) >> 32; ++ return ((u64)jhash_2words(a, b, rnd) * size) >> 32; + } + + static inline u_int32_t hash_conntrack(const struct nf_conntrack_tuple *tuple) |