From 42b6785eeb40fe3e9dab9981b6e3231a77c7c2f6 Mon Sep 17 00:00:00 2001
From: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Date: Tue, 10 Oct 2006 19:42:09 -0700
Subject: [PATCH] [NET]: Introduce protocol-specific destructor for time-wait
sockets.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/inet_timewait_sock.h | 1 +
include/net/timewait_sock.h | 7 +++++++
2 files changed, 8 insertions(+)
diff --git a/include/net/inet_timewait_sock.h b/include/net/inet_timewait_sock.h
index 6d14c22a00c5e..5f48748fe0175 100644
--- a/include/net/inet_timewait_sock.h
+++ b/include/net/inet_timewait_sock.h
@@ -196,6 +196,7 @@ static inline 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);
diff --git a/include/net/timewait_sock.h b/include/net/timewait_sock.h
index 2544281e1d5e6..be293d795e385 100644
--- a/include/net/timewait_sock.h
+++ b/include/net/timewait_sock.h
@@ -19,6 +19,7 @@ struct timewait_sock_ops {
unsigned int twsk_obj_size;
int (*twsk_unique)(struct sock *sk,
struct sock *sktw, void *twp);
+ void (*twsk_destructor)(struct sock *sk);
};
static inline int twsk_unique(struct sock *sk, struct sock *sktw, void *twp)
@@ -28,4 +29,10 @@ static inline int twsk_unique(struct sock *sk, struct sock *sktw, void *twp)
return 0;
}
+static inline void twsk_destructor(struct sock *sk)
+{
+ if (sk->sk_prot->twsk_prot->twsk_destructor != NULL)
+ sk->sk_prot->twsk_prot->twsk_destructor(sk);
+}
+
#endif /* _TIMEWAIT_SOCK_H */
--
2.30.2