netdev - Re: [RFC] pkt_sched: gen_estimator: Dont report fake rate estimators

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Message-Id: <20091001.141406.62574384.davem@davemloft.net>
Date:	Thu, 01 Oct 2009 14:14:06 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	jarkao2@...il.com
Cc:	eric.dumazet@...il.com, kaber@...sh.net, netdev@...r.kernel.org
Subject: Re: [RFC] pkt_sched: gen_estimator: Dont report fake rate
 estimators

From: Jarek Poplawski <jarkao2@...il.com>
Date: Thu, 01 Oct 2009 23:05:53 +0200

> Since you ask... I wonder about this whole int plus quite a bit of
> struct unreadability for one flag only. Maybe it could be queried
> on qdisc level (with a flag if necessary), and additional parameter
> of gnet_stats_copy_rate_est()? (Qdiscs should have no problem with
> setting this param for their classes too.)

Certainly, that's another approach to this problem.

But logically, just like we wouldn't emit a block of RED scheduler
data to 'tc' unless RED is actually configured, it seems consistent to
not emit estimator data when no estimator is even there.
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