netdev - Re: [PATCH net-next] tcp: Fix bug in ofo queue pruning MIB stats

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Date:	Wed, 21 Dec 2011 19:33:15 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	subramanian.vijay@...il.com
Cc:	netdev@...r.kernel.org, kuznet@....inr.ac.ru
Subject: Re: [PATCH net-next] tcp: Fix bug in ofo queue pruning MIB stats

From: Vijay Subramanian <subramanian.vijay@...il.com>
Date: Wed, 21 Dec 2011 15:50:01 -0800

> Linux MIB LINUX_MIB_OFOPRUNED is supposed to count the number of packets
> dropped from the out-of-order queue due to socket buffer overrun. Instead
> of counting the number of skbs freed, it counts the number of calls make to
> __skb_queue_purge() which is not what the user (see f.e. netstat) is expecting.
> Fix this by  incrementing the counter correctly.
> 
> Signed-off-by: Vijay Subramanian <subramanian.vijay@...il.com>

I disagree, this is an event, and the counter is counting how many times
we prune the out of order queue, not how many packets we prune from that
queue.
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