From f3c21d60f14e68ef5e3b792e6e1c00a12c94c110 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Mon, 2 Feb 2009 13:41:57 -0800 Subject: [PATCH] udp: increments sk_drops in __udp_queue_rcv_skb() [ Upstream commit e408b8dcb5ce42243a902205005208e590f28454 ] Commit 93821778def10ec1e69aa3ac10adee975dad4ff3 (udp: Fix rcv socket locking) accidentally removed sk_drops increments for UDP IPV4 sockets. This field can be used to detect incorrect sizing of socket receive buffers. Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- net/ipv4/udp.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index 27081d6d2c1a..77b344b355a4 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -942,9 +942,11 @@ static int __udp_queue_rcv_skb(struct sock *sk, struct sk_buff *skb) if ((rc = sock_queue_rcv_skb(sk, skb)) < 0) { /* Note that an ENOMEM error is charged twice */ - if (rc == -ENOMEM) + if (rc == -ENOMEM) { UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_RCVBUFERRORS, is_udplite); + atomic_inc(&sk->sk_drops); + } goto drop; } -- 2.39.5