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| author |   Pavel Emelyanov <xemul@openvz.org> | 2007-12-20 15:31:33 -0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2008-01-28 14:59:26 -0800 |
| commit | 152da81deb9a4870aeac352336184b2b14d4b2ba (patch) | |
| tree | 63db8e49be92e7f23667d8c3356177840287118f /include/net | |
| parent | [SCTP]: Follow Add-IP security consideratiosn wrt INIT/INIT-ACK (diff) | |
| download | linux-dev-152da81deb9a4870aeac352336184b2b14d4b2ba.tar.xz linux-dev-152da81deb9a4870aeac352336184b2b14d4b2ba.zip | |
[INET]: Uninline the __inet_hash function.
This one is used in quite many places in the networking code and
seems to big to be inline.
After the patch net/ipv4/build-in.o loses ~650 bytes:
add/remove: 2/0 grow/shrink: 0/5 up/down: 461/-1114 (-653)
function old new delta
__inet_hash_nolisten - 282 +282
__inet_hash - 179 +179
tcp_sacktag_write_queue 2255 2254 -1
__inet_lookup_listener 284 274 -10
tcp_v4_syn_recv_sock 755 493 -262
tcp_v4_hash 389 35 -354
inet_hash_connect 1086 599 -487
This version addresses the issue pointed by Eric, that
while being inline this function was optimized by gcc
in respect to the 'listen_possible' argument.
Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/inet_hashtables.h | 29 |
1 files changed, 3 insertions, 26 deletions
diff --git a/include/net/inet_hashtables.h b/include/net/inet_hashtables.h index 37f6cb112127..982d487751f9 100644 --- a/include/net/inet_hashtables.h +++ b/include/net/inet_hashtables.h @@ -264,37 +264,14 @@ static inline void inet_listen_unlock(struct inet_hashinfo *hashinfo) wake_up(&hashinfo->lhash_wait); } -static inline void __inet_hash(struct inet_hashinfo *hashinfo, - struct sock *sk, const int listen_possible) -{ - struct hlist_head *list; - rwlock_t *lock; - - BUG_TRAP(sk_unhashed(sk)); - if (listen_possible && sk->sk_state == TCP_LISTEN) { - list = &hashinfo->listening_hash[inet_sk_listen_hashfn(sk)]; - lock = &hashinfo->lhash_lock; - inet_listen_wlock(hashinfo); - } else { - struct inet_ehash_bucket *head; - sk->sk_hash = inet_sk_ehashfn(sk); - head = inet_ehash_bucket(hashinfo, sk->sk_hash); - list = &head->chain; - lock = inet_ehash_lockp(hashinfo, sk->sk_hash); - write_lock(lock); - } - __sk_add_node(sk, list); - sock_prot_inc_use(sk->sk_prot); - write_unlock(lock); - if (listen_possible && sk->sk_state == TCP_LISTEN) - wake_up(&hashinfo->lhash_wait); -} +extern void __inet_hash(struct inet_hashinfo *hashinfo, struct sock *sk); +extern void __inet_hash_nolisten(struct inet_hashinfo *hinfo, struct sock *sk); static inline void inet_hash(struct inet_hashinfo *hashinfo, struct sock *sk) { if (sk->sk_state != TCP_CLOSE) { local_bh_disable(); - __inet_hash(hashinfo, sk, 1); + __inet_hash(hashinfo, sk); local_bh_enable(); } } |