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Date:	Thu, 3 Sep 2009 12:57:30 -0500 (CDT)
From:	Christoph Lameter <cl@...ux-foundation.org>
To:	Eric Dumazet <eric.dumazet@...il.com>
cc:	David Miller <davem@...emloft.net>, sri@...ibm.com,
	dlstevens@...ibm.com, netdev@...r.kernel.org,
	niv@...ux.vnet.ibm.com, mtk.manpages@...il.com
Subject: Re: [PATCH net-next-2.6] ip: Report qdisc packet drops

On Thu, 3 Sep 2009, Eric Dumazet wrote:
> index 29ebb0d..ebaaa7f 100644
> --- a/net/ipv4/udp.c
> +++ b/net/ipv4/udp.c
> @@ -561,12 +561,18 @@ static int udp_push_pending_frames(struct sock *sk)
>
>  send:
>  	err = ip_push_pending_frames(sk);
> +	if (err) {
> +		if (err == -ENOBUFS && !inet->recverr) {
> +			UDP_INC_STATS_USER(sock_net(sk),
> +					   UDP_MIB_SNDBUFERRORS, is_udplite);

This means that we now do not increment SNDBUFERRORS if IP_RECVERR is set.

I think it would be better to move UDP_INC_STATS_USER before the if
statement. That will also simplify the code further.


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