From: David S. Miller <davem@davemloft.net>
Date: Mon, 2 Jul 2012 09:15:37 +0000 (-0700)
Subject: sunrpc: Don't do a dst_confirm() on an input routes.
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=60d354ebebd9d0f760cb6c3b9f53a7ade0f8cd0e;p=deliverable%2Flinux.git

sunrpc: Don't do a dst_confirm() on an input routes.

xs_udp_data_ready() is operating on received packets, and tries to
do a dst_confirm() on the dst attached to the SKB.

This isn't right, dst confirmation is for output routes, not input
rights.  It's for resetting the timers on the nexthop neighbour entry
for the route, indicating that we've got good evidence that we've
successfully reached it.

Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index 890b03f8d877..62d0dac8f780 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -1014,9 +1014,6 @@ static void xs_udp_data_ready(struct sock *sk, int len)
 
 	UDPX_INC_STATS_BH(sk, UDP_MIB_INDATAGRAMS);
 
-	/* Something worked... */
-	dst_confirm(skb_dst(skb));
-
 	xprt_adjust_cwnd(task, copied);
 	xprt_complete_rqst(task, copied);