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[PATCH] tcp: Cache inetpeer in timewait socket, and only when necessary.

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Since it's guarenteed that we will access the inetpeer if we're trying
to do timewait recycling and TCP options were enabled on the
connection, just cache the peer in the timewait socket.

In the future, inetpeer lookups will be context dependent (per routing
realm), and this helps facilitate that as well.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller
2012-06-09 14:56:12 -07:00
parent 4670fd819e
commit 2397849baa
6 changed files with 22 additions and 40 deletions
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8
include/net/timewait_sock.h
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@@ -22,7 +22,6 @@ struct timewait_sock_ops {
int (*twsk_unique)(struct sock *sk,
struct sock *sktw, void *twp);
void (*twsk_destructor)(struct sock *sk);
void *(*twsk_getpeer)(struct sock *sk);
};
static inline int twsk_unique(struct sock *sk, struct sock *sktw, void *twp)
@@ -41,11 +40,4 @@ static inline void twsk_destructor(struct sock *sk)
sk->sk_prot->twsk_prot->twsk_destructor(sk);
}
static inline void *twsk_getpeer(struct sock *sk)
{
if (sk->sk_prot->twsk_prot->twsk_getpeer)
return sk->sk_prot->twsk_prot->twsk_getpeer(sk);
return NULL;
}
#endif /* _TIMEWAIT_SOCK_H */