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inet: convert inet_ehash_secret and ipv6_hash_secret to net_get_random_once

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Initialize the ehash and ipv6_hash_secrets with net_get_random_once.

Each compilation unit gets its own secret now:
  ipv4/inet_hashtables.o
  ipv4/udp.o
  ipv6/inet6_hashtables.o
  ipv6/udp.o
  rds/connection.o

The functions still get inlined into the hashing functions. In the fast
path we have at most two (needed in ipv6) if (unlikely(...)).

Cc: Eric Dumazet <edumazet@google.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Hannes Frederic Sowa
2013-10-19 21:48:57 +02:00
committed by David S. Miller
parent b23a002fc6
commit 1bbdceef1e
8 changed files with 44 additions and 46 deletions
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4
include/net/inet_sock.h
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@@ -204,10 +204,6 @@ static inline void inet_sk_copy_descendant(struct sock *sk_to,
int inet_sk_rebuild_header(struct sock *sk);
extern u32 inet_ehash_secret;
extern u32 ipv6_hash_secret;
void build_ehash_secret(void);
static inline unsigned int __inet_ehashfn(const __be32 laddr,
const __u16 lport,
const __be32 faddr,