netdev - [PATCH] Phonet: dropped datagrams accounting

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Message-Id: <1248177479-12669-2-git-send-email-remi.denis-courmont@nokia.com>
Date:	Tue, 21 Jul 2009 14:57:58 +0300
From:	Rémi Denis-Courmont 
	<remi.denis-courmont@...ia.com>
To:	netdev@...r.kernel.org
Subject: [PATCH] Phonet: dropped datagrams accounting

From: Rémi Denis-Courmont <remi.denis-courmont@...ia.com>

The per-socket drop count is visible via /proc/net/phonet.

Signed-off-by: Rémi Denis-Courmont <remi.denis-courmont@...ia.com>
---
 net/phonet/datagram.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/net/phonet/datagram.c b/net/phonet/datagram.c
index e087862..ef5c75c 100644
--- a/net/phonet/datagram.c
+++ b/net/phonet/datagram.c
@@ -159,8 +159,11 @@ out_nofree:
 static int pn_backlog_rcv(struct sock *sk, struct sk_buff *skb)
 {
 	int err = sock_queue_rcv_skb(sk, skb);
-	if (err < 0)
+	if (err < 0) {
 		kfree_skb(skb);
+		if (err == -ENOMEM)
+			atomic_inc(&sk->sk_drops);
+	}
 	return err ? NET_RX_DROP : NET_RX_SUCCESS;
 }
 
-- 
1.6.0.4

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