diff options
| author | Pavel Emelyanov <xemul@openvz.org> | 2008-06-17 04:11:50 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-06-17 04:11:50 +0400 |
| commit | d6266281f8175e3ad68c28b20a609b278b47ade5 (patch) | |
| tree | 16e8643eb5560d70daf1097c3a09df21b6d186c1 /include/linux | |
| parent | 942e7b102a4827fdb69a39c7f07c544542589ef9 (diff) | |
| download | linux-d6266281f8175e3ad68c28b20a609b278b47ade5.tar.xz | |
udp: introduce a udp_hashfn function
Currently the chain to store a UDP socket is calculated with
simple (x & (UDP_HTABLE_SIZE - 1)). But taking net into account
would make this calculation a bit more complex, so moving it into
a function would help.
Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/udp.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/udp.h b/include/linux/udp.h index 581ca2c14c52..9c94312b2de5 100644 --- a/include/linux/udp.h +++ b/include/linux/udp.h @@ -46,6 +46,11 @@ static inline struct udphdr *udp_hdr(const struct sk_buff *skb) #define UDP_HTABLE_SIZE 128 +static inline int udp_hashfn(const unsigned num) +{ + return num & (UDP_HTABLE_SIZE - 1); +} + struct udp_sock { /* inet_sock has to be the first member */ struct inet_sock inet; |