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Commit e6848976 authored by Arnaldo Carvalho de Melo's avatar Arnaldo Carvalho de Melo Committed by David S. Miller
Browse files

[NET]: Cleanup INET_REFCNT_DEBUG code 



Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@ghostprotocols.net>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent d13964f4

include/net/inet_common.h

+0 −1
Original line number Diff line number Diff line
@@ -29,7 +29,6 @@ extern unsigned int inet_poll(struct file * file, struct socket *sock, struct p 
extern int			inet_listen(struct socket *sock, int backlog);



extern void			inet_sock_destruct(struct sock *sk);

extern atomic_t			inet_sock_nr;



extern int			inet_bind(struct socket *sock, 

					  struct sockaddr *uaddr, int addr_len);

include/net/ipv6.h

+0 −1
Original line number Diff line number Diff line
@@ -145,7 +145,6 @@ DECLARE_SNMP_STAT(struct udp_mib, udp_stats_in6); 
#define UDP6_INC_STATS(field)		SNMP_INC_STATS(udp_stats_in6, field)

#define UDP6_INC_STATS_BH(field)	SNMP_INC_STATS_BH(udp_stats_in6, field)

#define UDP6_INC_STATS_USER(field) 	SNMP_INC_STATS_USER(udp_stats_in6, field)

extern atomic_t			inet6_sock_nr;



int snmp6_register_dev(struct inet6_dev *idev);

int snmp6_unregister_dev(struct inet6_dev *idev);

include/net/sock.h

+31 −1
Original line number Diff line number Diff line
@@ -491,6 +491,9 @@ extern int sk_wait_data(struct sock *sk, long *timeo); 


struct request_sock_ops;



/* Here is the right place to enable sock refcounting debugging */

#define SOCK_REFCNT_DEBUG



/* Networking protocol blocks we attach to sockets.

 * socket layer -> transport layer interface

 * transport -> network interface is defined by struct inet_proto
@@ -561,7 +564,9 @@ struct proto { 
	char			name[32];



	struct list_head	node;



#ifdef SOCK_REFCNT_DEBUG

	atomic_t		socks;

#endif

	struct {

		int inuse;

		u8  __pad[SMP_CACHE_BYTES - sizeof(int)];
@@ -571,6 +576,31 @@ struct proto { 
extern int proto_register(struct proto *prot, int alloc_slab);

extern void proto_unregister(struct proto *prot);



#ifdef SOCK_REFCNT_DEBUG

static inline void sk_refcnt_debug_inc(struct sock *sk)

{

	atomic_inc(&sk->sk_prot->socks);

}



static inline void sk_refcnt_debug_dec(struct sock *sk)

{

	atomic_dec(&sk->sk_prot->socks);

	printk(KERN_DEBUG "%s socket %p released, %d are still alive\n",

	       sk->sk_prot->name, sk, atomic_read(&sk->sk_prot->socks));

}



static inline void sk_refcnt_debug_release(const struct sock *sk)

{

	if (atomic_read(&sk->sk_refcnt) != 1)

		printk(KERN_DEBUG "Destruction of the %s socket %p delayed, refcnt=%d\n",

		       sk->sk_prot->name, sk, atomic_read(&sk->sk_refcnt));

}

#else /* SOCK_REFCNT_DEBUG */

#define sk_refcnt_debug_inc(sk) do { } while (0)

#define sk_refcnt_debug_dec(sk) do { } while (0)

#define sk_refcnt_debug_release(sk) do { } while (0)

#endif /* SOCK_REFCNT_DEBUG */



/* Called with local bh disabled */

static __inline__ void sock_prot_inc_use(struct proto *prot)

{

include/net/tcp.h

+1 −1
Original line number Diff line number Diff line
@@ -306,7 +306,7 @@ extern kmem_cache_t *tcp_timewait_cachep; 
static inline void tcp_tw_put(struct tcp_tw_bucket *tw)

{

	if (atomic_dec_and_test(&tw->tw_refcnt)) {

#ifdef INET_REFCNT_DEBUG

#ifdef SOCK_REFCNT_DEBUG

		printk(KERN_DEBUG "tw_bucket %p released\n", tw);

#endif

		kmem_cache_free(tcp_timewait_cachep, tw);

net/core/sock.c

+1 −5
Original line number Diff line number Diff line
@@ -1367,11 +1367,7 @@ void sk_common_release(struct sock *sk) 


	xfrm_sk_free_policy(sk);



#ifdef INET_REFCNT_DEBUG

	if (atomic_read(&sk->sk_refcnt) != 1)

		printk(KERN_DEBUG "Destruction of the socket %p delayed, c=%d\n",

		       sk, atomic_read(&sk->sk_refcnt));

#endif

	sk_refcnt_debug_release(sk);

	sock_put(sk);

}