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net: some optimizations in af_inet 

1) Use eq_net() in inet_netns_ok() to speedup socket creation if
   !CONFIG_NET_NS

2) Reorder the tests about inet_ehash_secret generation (once only)
   Use the unlikely() macro when testing if inet_ehash_secret already
   generated.

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet 2008-11-23 15:42:23 -08:00 committed by David S. Miller
parent c46920dadb
commit 04f258ce7f
1 changed files with 4 additions and 5 deletions
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9
net/ipv4/af_inet.c
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@ -245,7 +245,7 @@ static inline int inet_netns_ok(struct net *net, int protocol)
int hash;
struct net_protocol *ipprot;
if (net == &init_net)
if (net_eq(net, &init_net))
return 1;
hash = protocol & (MAX_INET_PROTOS - 1);
@ -272,10 +272,9 @@ static int inet_create(struct net *net, struct socket *sock, int protocol)
int try_loading_module = 0;
int err;
if (sock->type != SOCK_RAW &&
sock->type != SOCK_DGRAM &&
!inet_ehash_secret)
build_ehash_secret();
if (unlikely(!inet_ehash_secret))
if (sock->type != SOCK_RAW && sock->type != SOCK_DGRAM)
build_ehash_secret();
sock->state = SS_UNCONNECTED;