netdev - Re: [PATCH net-next-2.6] snmp: 64bit ipstats

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Message-Id: <20100630.133034.139124730.davem@davemloft.net>
Date:	Wed, 30 Jun 2010 13:30:34 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	yoshfuji@...ux-ipv6.org
Cc:	eric.dumazet@...il.com, netdev@...r.kernel.org
Subject: Re: [PATCH net-next-2.6] snmp: 64bit ipstats_mib for all arches

From: YOSHIFUJI Hideaki <yoshfuji@...ux-ipv6.org>
Date: Wed, 30 Jun 2010 00:07:14 +0900

> Hello.
> 
> Thank you for doing this work!
> 
> Eric Dumazet wrote:
>> /proc/net/snmp and /proc/net/netstat expose SNMP counters.
>> Width of these counters is either 32 or 64 bits, depending on the size
>> of "unsigned long" in kernel.
>> This means user program parsing these files must already be prepared
>> to
>> deal with 64bit values, regardless of user program being 32 or 64 bit.
> 
> Well, I'm rather not in favor of breaking user-space apps.

Eric has explained that applications must already be able to cope with
64-bit values here.  I think this is a valid change to make and
telling users that non-broken (read as: 64-bit) stats are only
available via netlink is not a reasonable thing at all.

I'm going to apply Eric's patch.
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