From: David S. Miller <davem@davemloft.net>
Date: Mon, 3 May 2010 04:43:40 +0000 (-0700)
Subject: Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
X-Git-Tag: firefly_0821_release~9833^2~2087^2~295
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=7ef527377b88ff05fb122a47619ea506c631c914;p=firefly-linux-kernel-4.4.55.git

Merge branch 'master' of /linux/kernel/git/davem/net-2.6
---

7ef527377b88ff05fb122a47619ea506c631c914
diff --cc net/sctp/socket.c
index d54700af927a,44a1ab03a3f0..bae764005d2d
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@@ -3719,9 -3719,12 +3719,9 @@@ SCTP_STATIC int sctp_init_sock(struct s
  	sp->hmac = NULL;
  
  	SCTP_DBG_OBJCNT_INC(sock);
- 	percpu_counter_inc(&sctp_sockets_allocated);
  
 -	/* Set socket backlog limit. */
 -	sk->sk_backlog.limit = sysctl_sctp_rmem[1];
 -
  	local_bh_disable();
+ 	percpu_counter_inc(&sctp_sockets_allocated);
  	sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1);
  	local_bh_enable();
  
@@@ -6185,6 -6189,16 +6185,19 @@@ do_nonblock
  	goto out;
  }
  
+ void sctp_data_ready(struct sock *sk, int len)
+ {
 -	read_lock_bh(&sk->sk_callback_lock);
 -	if (sk_has_sleeper(sk))
 -		wake_up_interruptible_sync_poll(sk->sk_sleep, POLLIN |
++	struct socket_wq *wq;
++
++	rcu_read_lock();
++	wq = rcu_dereference(sk->sk_wq);
++	if (wq_has_sleeper(wq))
++		wake_up_interruptible_sync_poll(&wq->wait, POLLIN |
+ 						POLLRDNORM | POLLRDBAND);
+ 	sk_wake_async(sk, SOCK_WAKE_WAITD, POLL_IN);
 -	read_unlock_bh(&sk->sk_callback_lock);
++	rcu_read_unlock();
+ }
+ 
  /* If socket sndbuf has changed, wake up all per association waiters.  */
  void sctp_write_space(struct sock *sk)
  {