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-rw-r--r--net/dccp/output.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/net/dccp/output.c b/net/dccp/output.c
index 116f6db5678..28de157a432 100644
--- a/net/dccp/output.c
+++ b/net/dccp/output.c
@@ -150,6 +150,19 @@ unsigned int dccp_sync_mss(struct sock *sk, u32 pmtu)
return mss_now;
}
+void dccp_write_space(struct sock *sk)
+{
+ read_lock(&sk->sk_callback_lock);
+
+ if (sk->sk_sleep && waitqueue_active(sk->sk_sleep))
+ wake_up_interruptible(sk->sk_sleep);
+ /* Should agree with poll, otherwise some programs break */
+ if (sock_writeable(sk))
+ sk_wake_async(sk, 2, POLL_OUT);
+
+ read_unlock(&sk->sk_callback_lock);
+}
+
/**
* dccp_wait_for_ccid - Wait for ccid to tell us we can send a packet
* @sk: socket to wait for