linux-kernel - Re: [PATCH net-next v5 8/8] netconsole: docs: Add documentation for CPU number auto-population

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Message-ID: <Z6qO-_Ebnn5OTkgy@archie.me>
Date: Tue, 11 Feb 2025 06:42:51 +0700
From: Bagas Sanjaya <bagasdotme@...il.com>
To: Breno Leitao <leitao@...ian.org>
Cc: Andrew Lunn <andrew+netdev@...n.ch>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Simon Horman <horms@...nel.org>, Jonathan Corbet <corbet@....net>,
	Shuah Khan <shuah@...nel.org>, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-doc@...r.kernel.org,
	linux-kselftest@...r.kernel.org, rdunlap@...radead.org,
	kernel-team@...a.com
Subject: Re: [PATCH net-next v5 8/8] netconsole: docs: Add documentation for
 CPU number auto-population

On Mon, Feb 10, 2025 at 03:07:24AM -0800, Breno Leitao wrote:
> Hello Bagas,
> 
> On Fri, Feb 07, 2025 at 08:50:22AM +0700, Bagas Sanjaya wrote:
> > On Thu, Feb 06, 2025 at 03:05:59AM -0800, Breno Leitao wrote:
> > > +.. note::
> > > +
> > > +   If the user has set a conflicting `cpu` key in the userdata dictionary,
> > > +   both keys will be reported, with the kernel-populated entry appearing after
> > > +   the user one. For example::
> > 
> > In that case, shouldn't the kernel autopopulates numbers of the rest of
> > CPUs?
> 
> Do you mean listing all the CPUs that are *not* sending the current
> message?

Nope.

> 
> Let me come up with an example to try to understand this better. Let's
> suppopse I have a machine with 64 cores, and cpu=42 is sending that
> current message, then I would see the following on the dictionary:
> 
>  cpu=42
> 
> You are suggesting we send all the other cpus, except 42 in a "key"?

Sort of.

I mean, on the dictionary, we would see user-defined cpu number on one cpu,
and kernel-generated numbers on the rest.

Thanks.

-- 
An old man doll... just what I always wanted! - Clara

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