netdev - Re: [PATCH net-next 5/9] inet: frag: don't account number of fragment queues

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Message-Id: <20140724.231543.185389386835334722.davem@davemloft.net>
Date:	Thu, 24 Jul 2014 23:15:43 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	nikolay@...hat.com
Cc:	netdev@...r.kernel.org, fw@...len.de, kuznet@....inr.ac.ru,
	jmorris@...ei.org, yoshfuji@...ux-ipv6.org, kaber@...sh.net,
	alex.aring@...il.com, eric.dumazet@...il.com
Subject: Re: [PATCH net-next 5/9] inet: frag: don't account number of
 fragment queues

From: Nikolay Aleksandrov <nikolay@...hat.com>
Date: Thu, 24 Jul 2014 16:50:33 +0200

> From: Florian Westphal <fw@...len.de>
> 
> The 'nqueues' counter is protected by the lru list lock,
> once thats removed this needs to be converted to atomic
> counter.  Given this isn't used for anything except for
> reporting it to userspace via /proc, just remove it.
> 
> We still report the memory currently used by fragment
> reassembly queues.
> 
> Signed-off-by: Florian Westphal <fw@...len.de>

It's a user visible value, you can't just change it's semantics.
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