[UNIX] Move the unix sock iterators in to proper place

The first_unix_socket() and next_unix_sockets() are now used
in proc file and in forall_unix_socets macro only.

The forall_unix_sockets is not used in this file at all so
remove it. After this move the helpers to where they really
belong, i.e. closer to proc code under the #ifdef CONFIG_PROC_FS
option.
Signed-off-by: NPavel Emelyanov <xemul@openvz.org>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/unix/af_unix.c

@@ -127,32 +127,6 @@ static atomic_t unix_nr_socks = ATOMIC_INIT(0);
 
 #define UNIX_ABSTRACT(sk)	(unix_sk(sk)->addr->hash != UNIX_HASH_SIZE)
 
-static struct sock *first_unix_socket(int *i)
-{
-	for (*i = 0; *i <= UNIX_HASH_SIZE; (*i)++) {
-		if (!hlist_empty(&unix_socket_table[*i]))
-			return __sk_head(&unix_socket_table[*i]);
-	}
-	return NULL;
-}
-
-static struct sock *next_unix_socket(int *i, struct sock *s)
-{
-	struct sock *next = sk_next(s);
-	/* More in this chain? */
-	if (next)
-		return next;
-	/* Look for next non-empty chain. */
-	for ((*i)++; *i <= UNIX_HASH_SIZE; (*i)++) {
-		if (!hlist_empty(&unix_socket_table[*i]))
-			return __sk_head(&unix_socket_table[*i]);
-	}
-	return NULL;
-}
-
-#define forall_unix_sockets(i, s) \
-	for (s = first_unix_socket(&(i)); s; s = next_unix_socket(&(i),(s)))
-
 #ifdef CONFIG_SECURITY_NETWORK
 static void unix_get_secdata(struct scm_cookie *scm, struct sk_buff *skb)
 {
@@ -2017,6 +1991,29 @@ static unsigned int unix_poll(struct file * file, struct socket *sock, poll_tabl
 
 
 #ifdef CONFIG_PROC_FS
+static struct sock *first_unix_socket(int *i)
+{
+	for (*i = 0; *i <= UNIX_HASH_SIZE; (*i)++) {
+		if (!hlist_empty(&unix_socket_table[*i]))
+			return __sk_head(&unix_socket_table[*i]);
+	}
+	return NULL;
+}
+
+static struct sock *next_unix_socket(int *i, struct sock *s)
+{
+	struct sock *next = sk_next(s);
+	/* More in this chain? */
+	if (next)
+		return next;
+	/* Look for next non-empty chain. */
+	for ((*i)++; *i <= UNIX_HASH_SIZE; (*i)++) {
+		if (!hlist_empty(&unix_socket_table[*i]))
+			return __sk_head(&unix_socket_table[*i]);
+	}
+	return NULL;
+}
+
 struct unix_iter_state {
 	struct seq_net_private p;
 	int i;