diff options
| author | Tom Herbert <tom@herbertland.com> | 2015-07-28 16:02:05 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-07-29 22:44:04 -0700 |
| commit | 877d1f6291f8e391237e324be58479a3e3a7407c (patch) | |
| tree | 7fef04aed6fab396e8e1205a37fff6ad3a2450ed /include/net/sock.h | |
| parent | 7a86d96e4a990aab2fc7b3b97c3bb09f9da0a290 (diff) | |
| download | linux-877d1f6291f8e391237e324be58479a3e3a7407c.tar.bz2 | |
net: Set sk_txhash from a random number
This patch creates sk_set_txhash and eliminates protocol specific
inet_set_txhash and ip6_set_txhash. sk_set_txhash simply sets a
random number instead of performing flow dissection. sk_set_txash
is also allowed to be called multiple times for the same socket,
we'll need this when redoing the hash for negative routing advice.
Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/sock.h')
| -rw-r--r-- | include/net/sock.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/net/sock.h b/include/net/sock.h index 4353ef70bf48..fe735c4841f6 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -1687,6 +1687,14 @@ static inline void sock_graft(struct sock *sk, struct socket *parent) kuid_t sock_i_uid(struct sock *sk); unsigned long sock_i_ino(struct sock *sk); +static inline void sk_set_txhash(struct sock *sk) +{ + sk->sk_txhash = prandom_u32(); + + if (unlikely(!sk->sk_txhash)) + sk->sk_txhash = 1; +} + static inline struct dst_entry * __sk_dst_get(struct sock *sk) { |