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| author | Pavel Emelyanov <xemul@openvz.org> | 2007-12-20 15:32:54 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-01-28 14:59:28 -0800 |
| commit | 7054fb9376e111d0edc06efcedbac6930a6caf76 (patch) | |
| tree | a008ba9a3f844c5480dc650f4d0fa3fbd0690dab /net/ipv4/inet_timewait_sock.c | |
| parent | 77a5ba55dab7b4ece12f37c717022819e3f77b44 (diff) | |
| download | lwn-7054fb9376e111d0edc06efcedbac6930a6caf76.tar.gz lwn-7054fb9376e111d0edc06efcedbac6930a6caf76.zip | |
[INET]: Uninline the inet_twsk_put function.
This one is not that big, but is widely used: saves 1200 bytes
from net/ipv4/built-in.o
add/remove: 1/0 grow/shrink: 1/12 up/down: 97/-1300 (-1203)
function old new delta
inet_twsk_put - 87 +87
__inet_lookup_listener 274 284 +10
tcp_sacktag_write_queue 2255 2254 -1
tcp_time_wait 482 411 -71
__inet_check_established 796 722 -74
tcp_v4_err 973 898 -75
__inet_twsk_kill 230 154 -76
inet_twsk_deschedule 180 103 -77
tcp_v4_do_rcv 462 384 -78
inet_hash_connect 686 607 -79
inet_twdr_do_twkill_work 236 150 -86
inet_twdr_twcal_tick 395 307 -88
tcp_v4_rcv 1744 1480 -264
tcp_timewait_state_process 975 644 -331
Export it for ipv6 module.
Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/inet_timewait_sock.c')
| -rw-r--r-- | net/ipv4/inet_timewait_sock.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/net/ipv4/inet_timewait_sock.c b/net/ipv4/inet_timewait_sock.c index d43e787031a4..1b7db4208969 100644 --- a/net/ipv4/inet_timewait_sock.c +++ b/net/ipv4/inet_timewait_sock.c @@ -48,6 +48,21 @@ static void __inet_twsk_kill(struct inet_timewait_sock *tw, inet_twsk_put(tw); } +void inet_twsk_put(struct inet_timewait_sock *tw) +{ + if (atomic_dec_and_test(&tw->tw_refcnt)) { + struct module *owner = tw->tw_prot->owner; + twsk_destructor((struct sock *)tw); +#ifdef SOCK_REFCNT_DEBUG + printk(KERN_DEBUG "%s timewait_sock %p released\n", + tw->tw_prot->name, tw); +#endif + kmem_cache_free(tw->tw_prot->twsk_prot->twsk_slab, tw); + module_put(owner); + } +} +EXPORT_SYMBOL_GPL(inet_twsk_put); + /* * Enter the time wait state. This is called with locally disabled BH. * Essentially we whip up a timewait bucket, copy the relevant info into it |