tipc: use limited socket backlog

Make tipc adapt to the limited socket backlog change.

Cc: Jon Maloy <jon.maloy@ericsson.com>
Cc: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/tipc/socket.c b/net/tipc/socket.c
index 1ea64f0..22bfbc3 100644 (file)
--- a/net/tipc/socket.c
+++ b/net/tipc/socket.c
@@ -1322,8 +1322,10 @@ static u32 dispatch(struct tipc_port *tport, struct sk_buff *buf)
        if (!sock_owned_by_user(sk)) {
                res = filter_rcv(sk, buf);
        } else {
-               sk_add_backlog(sk, buf);
-               res = TIPC_OK;
+               if (sk_add_backlog_limited(sk, buf))
+                       res = TIPC_ERR_OVERLOAD;
+               else
+                       res = TIPC_OK;
        }
        bh_unlock_sock(sk);