netdev - Re: [PATCH net-next v3 2/3] net: sched: Make tc-related drop reason more flexible for remaining qdiscs

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Date: Tue, 12 Dec 2023 17:57:28 +0100
From: Eric Dumazet <edumazet@...gle.com>
To: Jamal Hadi Salim <jhs@...atatu.com>
Cc: Jakub Kicinski <kuba@...nel.org>, Victor Nogueira <victor@...atatu.com>, xiyou.wangcong@...il.com, 
	jiri@...nulli.us, davem@...emloft.net, pabeni@...hat.com, 
	daniel@...earbox.net, dcaratti@...hat.com, netdev@...r.kernel.org, 
	kernel@...atatu.com
Subject: Re: [PATCH net-next v3 2/3] net: sched: Make tc-related drop reason
 more flexible for remaining qdiscs

On Tue, Dec 12, 2023 at 5:28 PM Jamal Hadi Salim <jhs@...atatu.com> wrote:
>

>
> So when we looked at this code there was some mystery. It wasnt clear
> how to_free could have more than one skb.

Some qdisc can free skbs at enqueue() time in  a batch for performance
reason (fq_codel_drop() is such an instance)

I agree that all skbs in this list have probably the same drop_reason ?