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Diffstat (limited to 'include/net/inet_hashtables.h')
-rw-r--r--include/net/inet_hashtables.h48
1 files changed, 18 insertions, 30 deletions
diff --git a/include/net/inet_hashtables.h b/include/net/inet_hashtables.h
index 98e0bb3..b4491c9 100644
--- a/include/net/inet_hashtables.h
+++ b/include/net/inet_hashtables.h
@@ -271,38 +271,15 @@ static inline int inet_iif(const struct sk_buff *skb)
return ((struct rtable *)skb->dst)->rt_iif;
}
-extern struct sock *__inet_lookup_listener(const struct hlist_head *head,
+extern struct sock *__inet_lookup_listener(struct inet_hashinfo *hashinfo,
const u32 daddr,
const unsigned short hnum,
const int dif);
-/* Optimize the common listener case. */
-static inline struct sock *
- inet_lookup_listener(struct inet_hashinfo *hashinfo,
- const u32 daddr,
- const unsigned short hnum, const int dif)
+static inline struct sock *inet_lookup_listener(struct inet_hashinfo *hashinfo,
+ u32 daddr, u16 dport, 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(head, daddr, hnum, dif);
- }
- if (sk) {
-sherry_cache:
- sock_hold(sk);
- }
- read_unlock(&hashinfo->lhash_lock);
- return sk;
+ return __inet_lookup_listener(hashinfo, daddr, ntohs(dport), dif);
}
/* Socket demux engine toys. */
@@ -391,14 +368,25 @@ hit:
goto out;
}
+static inline struct sock *
+ inet_lookup_established(struct inet_hashinfo *hashinfo,
+ const u32 saddr, const u16 sport,
+ const u32 daddr, const u16 dport,
+ const int dif)
+{
+ return __inet_lookup_established(hashinfo, saddr, sport, daddr,
+ ntohs(dport), dif);
+}
+
static inline struct sock *__inet_lookup(struct inet_hashinfo *hashinfo,
const u32 saddr, const u16 sport,
- const u32 daddr, const u16 hnum,
+ const u32 daddr, const u16 dport,
const int dif)
{
+ u16 hnum = ntohs(dport);
struct sock *sk = __inet_lookup_established(hashinfo, saddr, sport, daddr,
hnum, dif);
- return sk ? : inet_lookup_listener(hashinfo, daddr, hnum, dif);
+ return sk ? : __inet_lookup_listener(hashinfo, daddr, hnum, dif);
}
static inline struct sock *inet_lookup(struct inet_hashinfo *hashinfo,
@@ -409,7 +397,7 @@ static inline struct sock *inet_lookup(struct inet_hashinfo *hashinfo,
struct sock *sk;
local_bh_disable();
- sk = __inet_lookup(hashinfo, saddr, sport, daddr, ntohs(dport), dif);
+ sk = __inet_lookup(hashinfo, saddr, sport, daddr, dport, dif);
local_bh_enable();
return sk;