netdev - [PATCH][PACKET] Use existing sock refcnt debugging infrastructure

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Message-ID: <4734631D.6080807@openvz.org>
Date:	Fri, 09 Nov 2007 16:39:41 +0300
From:	Pavel Emelyanov <xemul@...nvz.org>
To:	David Miller <davem@...emloft.net>
CC:	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Linux Netdev List <netdev@...r.kernel.org>, devel@...nvz.org
Subject: [PATCH][PACKET] Use existing sock refcnt debugging infrastructure

The packet_socks_nr variable is used purely for debugging
the number of sockets.

As Arnaldo pointed out, there's already an infrastructure
for this purposes, so switch to using it.

Signed-off-by: Pavel Emelyanov <xemul@...nvz.org>

---

diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index 4cb2dfb..36331a5 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -139,9 +139,6 @@ dev->hard_header == NULL (ll header is added by device, we cannot control it)
 static HLIST_HEAD(packet_sklist);
 static DEFINE_RWLOCK(packet_sklist_lock);
 
-static atomic_t packet_socks_nr;
-
-
 /* Private packet socket structures. */
 
 struct packet_mclist
@@ -236,10 +233,7 @@ static void packet_sock_destruct(struct sock *sk)
 		return;
 	}
 
-	atomic_dec(&packet_socks_nr);
-#ifdef PACKET_REFCNT_DEBUG
-	printk(KERN_DEBUG "PACKET socket %p is free, %d are alive\n", sk, atomic_read(&packet_socks_nr));
-#endif
+	sk_refcnt_debug_dec(sk);
 }
 
 
@@ -849,6 +843,7 @@ static int packet_release(struct socket *sock)
 	/* Purge queues */
 
 	skb_queue_purge(&sk->sk_receive_queue);
+	sk_refcnt_debug_release(sk);
 
 	sock_put(sk);
 	return 0;
@@ -1010,7 +1005,7 @@ static int packet_create(struct net *net, struct socket *sock, int protocol)
 	po->num = proto;
 
 	sk->sk_destruct = packet_sock_destruct;
-	atomic_inc(&packet_socks_nr);
+	sk_refcnt_debug_inc(sk);
 
 	/*
 	 *	Attach a protocol block
-- 
1.5.3.4

-
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