[INET]: Uninline the __inet_lookup_established function.

This is -700 bytes from the net/ipv4/built-in.o

add/remove: 1/0 grow/shrink: 1/3 up/down: 340/-1040 (-700)
function                                     old     new   delta
__inet_lookup_established                      -     339    +339
tcp_sacktag_write_queue                     2254    2255      +1
tcp_v4_err                                  1304     973    -331
tcp_v4_rcv                                  2089    1744    -345
tcp_v4_do_rcv                                826     462    -364

Exporting is for dccp module (used via e.g. inet_lookup).

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/inet_hashtables.h b/include/net/inet_hashtables.h
index 982d487..65ddb25 100644 (file)
--- a/include/net/inet_hashtables.h
+++ b/include/net/inet_hashtables.h
@@ -374,43 +374,9 @@ typedef __u64 __bitwise __addrpair;
  *
  * Local BH must be disabled here.
  */
-static inline struct sock *
-       __inet_lookup_established(struct inet_hashinfo *hashinfo,
-                                 const __be32 saddr, const __be16 sport,
-                                 const __be32 daddr, const u16 hnum,
-                                 const int dif)
-{
-       INET_ADDR_COOKIE(acookie, saddr, daddr)
-       const __portpair ports = INET_COMBINED_PORTS(sport, hnum);
-       struct sock *sk;
-       const struct hlist_node *node;
-       /* Optimize here for direct hit, only listening connections can
-        * have wildcards anyways.
-        */
-       unsigned int hash = inet_ehashfn(daddr, hnum, saddr, sport);
-       struct inet_ehash_bucket *head = inet_ehash_bucket(hashinfo, hash);
-       rwlock_t *lock = inet_ehash_lockp(hashinfo, hash);
-
-       prefetch(head->chain.first);
-       read_lock(lock);
-       sk_for_each(sk, node, &head->chain) {
-               if (INET_MATCH(sk, hash, acookie, saddr, daddr, ports, dif))
-                       goto hit; /* You sunk my battleship! */
-       }
-
-       /* Must check for a TIME_WAIT'er before going to listener hash. */
-       sk_for_each(sk, node, &head->twchain) {
-               if (INET_TW_MATCH(sk, hash, acookie, saddr, daddr, ports, dif))
-                       goto hit;
-       }
-       sk = NULL;
-out:
-       read_unlock(lock);
-       return sk;
-hit:
-       sock_hold(sk);
-       goto out;
-}
+extern struct sock * __inet_lookup_established(struct inet_hashinfo *hashinfo,
+               const __be32 saddr, const __be16 sport,
+               const __be32 daddr, const u16 hnum, const int dif);
 
 static inline struct sock *
        inet_lookup_established(struct inet_hashinfo *hashinfo,

diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c
index 8dfd5a6..2e5814a 100644 (file)
--- a/net/ipv4/inet_hashtables.c
+++ b/net/ipv4/inet_hashtables.c
@@ -190,6 +190,44 @@ sherry_cache:
 }
 EXPORT_SYMBOL_GPL(__inet_lookup_listener);
 
+struct sock * __inet_lookup_established(struct inet_hashinfo *hashinfo,
+                                 const __be32 saddr, const __be16 sport,
+                                 const __be32 daddr, const u16 hnum,
+                                 const int dif)
+{
+       INET_ADDR_COOKIE(acookie, saddr, daddr)
+       const __portpair ports = INET_COMBINED_PORTS(sport, hnum);
+       struct sock *sk;
+       const struct hlist_node *node;
+       /* Optimize here for direct hit, only listening connections can
+        * have wildcards anyways.
+        */
+       unsigned int hash = inet_ehashfn(daddr, hnum, saddr, sport);
+       struct inet_ehash_bucket *head = inet_ehash_bucket(hashinfo, hash);
+       rwlock_t *lock = inet_ehash_lockp(hashinfo, hash);
+
+       prefetch(head->chain.first);
+       read_lock(lock);
+       sk_for_each(sk, node, &head->chain) {
+               if (INET_MATCH(sk, hash, acookie, saddr, daddr, ports, dif))
+                       goto hit; /* You sunk my battleship! */
+       }
+
+       /* Must check for a TIME_WAIT'er before going to listener hash. */
+       sk_for_each(sk, node, &head->twchain) {
+               if (INET_TW_MATCH(sk, hash, acookie, saddr, daddr, ports, dif))
+                       goto hit;
+       }
+       sk = NULL;
+out:
+       read_unlock(lock);
+       return sk;
+hit:
+       sock_hold(sk);
+       goto out;
+}
+EXPORT_SYMBOL_GPL(__inet_lookup_established);
+
 /* called with local bh disabled */
 static int __inet_check_established(struct inet_timewait_death_row *death_row,
                                    struct sock *sk, __u16 lport,