From: David Miller <davem@davemloft.net>
To: eric.dumazet@gmail.com
Cc: netdev@vger.kernel.org
Subject: Re: [PATCH net-next] net_sched: increment drop counters in qdisc_tree_decrease_qlen()
Date: Tue, 08 Oct 2013 16:51:24 -0400 (EDT) [thread overview]
Message-ID: <20131008.165124.1061477322585989569.davem@davemloft.net> (raw)
In-Reply-To: <1381159952.12191.14.camel@edumazet-glaptop.roam.corp.google.com>
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Mon, 07 Oct 2013 08:32:32 -0700
> From: Eric Dumazet <edumazet@google.com>
>
> qdisc_tree_decrease_qlen() is called when some packets are dropped
> on a qdisc, and we want to notify parents of qlen changes.
>
> We also can increment parents qdisc qstats drop counters.
>
> This permits more accurate drop counters up to root qdisc.
>
> For example a graft operation typically resets a qdisc
> (drops all packets) and call qdisc_tree_decrease_qlen()
>
> Note that callers are responsible for their drop counters.
>
> Signed-off-by: Eric Dumazet <edumazet@google.com>
Applied.
prev parent reply other threads:[~2013-10-08 20:51 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-07 15:32 [PATCH net-next] net_sched: increment drop counters in qdisc_tree_decrease_qlen() Eric Dumazet
2013-10-08 20:51 ` David Miller [this message]
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