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net: ib_net pointer should depends on CONFIG_NET_NS

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We can shrink size of "struct inet_bind_bucket" by 50%, using
read_pnet() and write_pnet()

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet 2008-11-12 00:54:20 -08:00 • committed by David S. Miller
parent 8f424b5f32
commit 7a9546ee35
3 changed files with 12 additions and 5 deletions
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7
include/net/inet_hashtables.h
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@ -77,13 +77,20 @@ struct inet_ehash_bucket {
* ports are created in O(1) time? I thought so. ;-) -DaveM
*/
struct inet_bind_bucket {
#ifdef CONFIG_NET_NS
struct net *ib_net;
#endif
unsigned short port;
signed short fastreuse;
struct hlist_node node;
struct hlist_head owners;
};
static inline struct net *ib_net(struct inet_bind_bucket *ib)
{
return read_pnet(&ib->ib_net);
}
#define inet_bind_bucket_for_each(tb, node, head) \
hlist_for_each_entry(tb, node, head, node)