netdev - Re: [PATCH net v2 1/2] net/sched: act_mirred: use the backlog for mirred ingress

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Message-ID: <20240215063714.58fd742a@kernel.org>
Date: Thu, 15 Feb 2024 06:37:14 -0800
From: Jakub Kicinski <kuba@...nel.org>
To: Paolo Abeni <pabeni@...hat.com>
Cc: Jiri Pirko <jiri@...nulli.us>, davem@...emloft.net,
 netdev@...r.kernel.org, edumazet@...gle.com, Marcelo Ricardo Leitner
 <marcelo.leitner@...il.com>, Davide Caratti <dcaratti@...hat.com>,
 jhs@...atatu.com, xiyou.wangcong@...il.com, shmulik.ladkani@...il.com
Subject: Re: [PATCH net v2 1/2] net/sched: act_mirred: use the backlog for
 mirred ingress

On Thu, 15 Feb 2024 13:56:12 +0100 Paolo Abeni wrote:
> > Sorry I'm not sure what you're asking.
> > 
> > We can't redirect traffic back to ourselves because we can end up
> > trying to take the socket lock for a socket that is generating
> > the packet.
> > 
> > Or are you asking how we can get the stats from the packet
> > asynchronously? We could build a local async scheme but I'd rather
> > not go there unless someone actually cares about these stats.  
> 
> I *guess* Jiri is suggesting to expand the commit message describing
> how the fix implemented by this patch works.

The irony... ;]

v3 with more words:
https://lore.kernel.org/all/20240215143346.1715054-1-kuba@kernel.org/