V4L/DVB (6015): DVB: convert struct class_device to struct device

[linux-2.6-omap-h63xx.git] / net / unix / af_unix.c

diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index d70fa30d4294383f4cbdc45feec8a1df90f65a2b..a05c34260e7005a346e3a507dc97149c82d2b740 100644 (file)
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -118,14 +118,40 @@
 
 int sysctl_unix_max_dgram_qlen __read_mostly = 10;
 
-struct hlist_head unix_socket_table[UNIX_HASH_SIZE + 1];
-DEFINE_SPINLOCK(unix_table_lock);
+static struct hlist_head unix_socket_table[UNIX_HASH_SIZE + 1];
+static DEFINE_SPINLOCK(unix_table_lock);
 static atomic_t unix_nr_socks = ATOMIC_INIT(0);
 
 #define unix_sockets_unbound   (&unix_socket_table[UNIX_HASH_SIZE])
 
 #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)
 {
@@ -592,7 +618,8 @@ static struct sock * unix_create1(struct socket *sock)
        u->dentry = NULL;
        u->mnt    = NULL;
        spin_lock_init(&u->lock);
-       atomic_set(&u->inflight, sock ? 0 : -1);
+       atomic_set(&u->inflight, 0);
+       INIT_LIST_HEAD(&u->link);
        mutex_init(&u->readlock); /* single task reading lock */
        init_waitqueue_head(&u->peer_wait);
        unix_insert_socket(unix_sockets_unbound, sk);
@@ -1134,9 +1161,6 @@ restart:
        /* take ten and and send info to listening sock */
        spin_lock(&other->sk_receive_queue.lock);
        __skb_queue_tail(&other->sk_receive_queue, skb);
-       /* Undo artificially decreased inflight after embrion
-        * is installed to listening socket. */
-       atomic_inc(&newu->inflight);
        spin_unlock(&other->sk_receive_queue.lock);
        unix_state_unlock(other);
        other->sk_data_ready(other, 0);
@@ -2048,7 +2072,7 @@ static int unix_seq_show(struct seq_file *seq, void *v)
        return 0;
 }
 
-static struct seq_operations unix_seq_ops = {
+static const struct seq_operations unix_seq_ops = {
        .start  = unix_seq_start,
        .next   = unix_seq_next,
        .stop   = unix_seq_stop,