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path: root/net/ipv4/inet_timewait_sock.c
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Diffstat (limited to 'net/ipv4/inet_timewait_sock.c')
-rw-r--r--net/ipv4/inet_timewait_sock.c15
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