llc: use limited socket backlog

Make llc adapt to the limited socket backlog change.

Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/llc/llc_conn.c b/net/llc/llc_conn.c
index a8dde9b010da7e44cb407d5954f7678ac2d585dd..c0539ffdb272ade1cdfd4ee9e4f76843a6a531e2 100644 (file)
--- a/net/llc/llc_conn.c
+++ b/net/llc/llc_conn.c
@@ -827,7 +827,8 @@ void llc_conn_handler(struct llc_sap *sap, struct sk_buff *skb)
        else {
                dprintk("%s: adding to backlog...\n", __func__);
                llc_set_backlog_type(skb, LLC_PACKET);
-               sk_add_backlog(sk, skb);
+               if (sk_add_backlog_limited(sk, skb))
+                       goto drop_unlock;
        }
 out:
        bh_unlock_sock(sk);