1 files changed, 4 insertions, 0 deletions

diff --git a/net/core/datagram.c b/net/core/datagram.c
index b71423db7785..9cbaba98ce4c 100644
--- a/net/core/datagram.c
+++ b/net/core/datagram.c
@@ -56,6 +56,7 @@
 #include <net/sock.h>
 #include <net/tcp_states.h>
 #include <trace/events/skb.h>
+#include <net/ll_poll.h>
 
 /*
  *      Is a socket 'connection oriented' ?
@@ -207,6 +208,9 @@ struct sk_buff *__skb_recv_datagram(struct sock *sk, unsigned int flags,
                 }
                 spin_unlock_irqrestore(&queue->lock, cpu_flags);
 
+                if (sk_valid_ll(sk) && sk_poll_ll(sk, flags & MSG_DONTWAIT))
+                        continue;
+
                 /* User doesn't want to wait */
                 error = -EAGAIN;
                 if (!timeo)