netdev - Re: [PATCH 1/2] pkt_sched: Fix gen

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Date:	Wed, 27 Aug 2008 03:47:23 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	jarkao2@...il.com
Cc:	herbert@...dor.apana.org.au, netdev@...r.kernel.org
Subject: Re: [PATCH 1/2] pkt_sched: Fix gen_estimator locks

From: Jarek Poplawski <jarkao2@...il.com>
Date: Wed, 27 Aug 2008 10:44:58 +0000

> Yes, it should be simpler. (We can probably consider a pointer to
> itself instead of NULL for root qdiscs, to skip testing for NULL e.g.
> while getting a lock.) On the other hand, we lose with this the
> possibility to easily determine which dev_queue is "the owner" of the
> qdisc, or if some dev_queue contains a clone only.

For root qdiscs we can add a TCQ_F_SHARED flag for this purpose.
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