1 files changed, 6 insertions, 4 deletions

diff --git a/net/dccp/output.c b/net/dccp/output.c
index 2d3dcb39851f..aadbdb58758b 100644
--- a/net/dccp/output.c
+++ b/net/dccp/output.c
@@ -195,15 +195,17 @@ EXPORT_SYMBOL_GPL(dccp_sync_mss);
 
 void dccp_write_space(struct sock *sk)
 {
-        read_lock(&sk->sk_callback_lock);
+        struct socket_wq *wq;
 
-        if (sk_has_sleeper(sk))
-                wake_up_interruptible(sk_sleep(sk));
+        rcu_read_lock();
+        wq = rcu_dereference(sk->sk_wq);
+        if (wq_has_sleeper(wq))
+                wake_up_interruptible(&wq->wait);
         /* Should agree with poll, otherwise some programs break */
         if (sock_writeable(sk))
                 sk_wake_async(sk, SOCK_WAKE_SPACE, POLL_OUT);
 
-        read_unlock(&sk->sk_callback_lock);
+        rcu_read_unlock();
 }
 
 /**