diff options
| author | Linus Torvalds <torvalds@g5.osdl.org> | 2006-09-23 16:49:31 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-09-23 16:49:31 -0700 |
| commit | a4c12d6c5dde48c69464baf7c703e425ee511433 (patch) | |
| tree | 73c375e41a353e2da0461ff30d744bff73958b08 /net/ipv4/inet_hashtables.c | |
| parent | 73af07de3e32b9ac328c3d1417258bb98a9b0a9b (diff) | |
| parent | 3b9f9a1c3903b64c38505f9fed3bb11e48dbc931 (diff) | |
Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: (353 commits)
[IPV6] ADDRCONF: Mobile IPv6 Home Address support.
[IPV6] ADDRCONF: Allow non-DAD'able addresses.
[IPV6] NDISC: Fix is_router flag setting.
[IPV6] ADDRCONF: Convert addrconf_lock to RCU.
[IPV6] NDISC: Add proxy_ndp sysctl.
[IPV6] NDISC: Set per-entry is_router flag in Proxy NA.
[IPV6] NDISC: Avoid updating neighbor cache for proxied address in receiving NA.
[IPV6]: Don't forward packets to proxied link-local address.
[IPV6] NDISC: Handle NDP messages to proxied addresses.
[NETFILTER]: PPTP conntrack: fix another GRE keymap leak
[NETFILTER]: PPTP conntrack: fix GRE keymap leak
[NETFILTER]: PPTP conntrack: fix PPTP_IN_CALL message types
[NETFILTER]: PPTP conntrack: check call ID before changing state
[NETFILTER]: PPTP conntrack: clean up debugging cruft
[NETFILTER]: PPTP conntrack: consolidate header parsing
[NETFILTER]: PPTP conntrack: consolidate header size checks
[NETFILTER]: PPTP conntrack: simplify expectation handling
[NETFILTER]: PPTP conntrack: remove unnecessary cid/pcid header pointers
[NETFILTER]: PPTP conntrack: fix header definitions
[NETFILTER]: PPTP conntrack: remove more dead code
...
Diffstat (limited to 'net/ipv4/inet_hashtables.c')
| -rw-r--r-- | net/ipv4/inet_hashtables.c | 33 |
1 files changed, 31 insertions, 2 deletions
diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c index 95fac5532994..fb296c9a7f3f 100644 --- a/net/ipv4/inet_hashtables.c +++ b/net/ipv4/inet_hashtables.c @@ -124,8 +124,10 @@ EXPORT_SYMBOL(inet_listen_wlock); * remote address for the connection. So always assume those are both * wildcarded during the search since they can never be otherwise. */ -struct sock *__inet_lookup_listener(const struct hlist_head *head, const u32 daddr, - const unsigned short hnum, const int dif) +static struct sock *inet_lookup_listener_slow(const struct hlist_head *head, + const u32 daddr, + const unsigned short hnum, + const int dif) { struct sock *result = NULL, *sk; const struct hlist_node *node; @@ -159,6 +161,33 @@ struct sock *__inet_lookup_listener(const struct hlist_head *head, const u32 dad return result; } +/* Optimize the common listener case. */ +struct sock *__inet_lookup_listener(struct inet_hashinfo *hashinfo, + const u32 daddr, const unsigned short hnum, + const int dif) +{ + struct sock *sk = NULL; + const struct hlist_head *head; + + read_lock(&hashinfo->lhash_lock); + head = &hashinfo->listening_hash[inet_lhashfn(hnum)]; + if (!hlist_empty(head)) { + const struct inet_sock *inet = inet_sk((sk = __sk_head(head))); + + if (inet->num == hnum && !sk->sk_node.next && + (!inet->rcv_saddr || inet->rcv_saddr == daddr) && + (sk->sk_family == PF_INET || !ipv6_only_sock(sk)) && + !sk->sk_bound_dev_if) + goto sherry_cache; + sk = inet_lookup_listener_slow(head, daddr, hnum, dif); + } + if (sk) { +sherry_cache: + sock_hold(sk); + } + read_unlock(&hashinfo->lhash_lock); + return sk; +} EXPORT_SYMBOL_GPL(__inet_lookup_listener); /* called with local bh disabled */ |