linux-kernel - Re: [PATCH v6 03/10] mm,memory_hotplug: Implement numa node notifier

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Message-ID: <aE_a4_rGbMLJKBIs@localhost.localdomain>
Date: Mon, 16 Jun 2025 10:50:43 +0200
From: Oscar Salvador <osalvador@...e.de>
To: David Hildenbrand <david@...hat.com>
Cc: Andrew Morton <akpm@...ux-foundation.org>,
	Vlastimil Babka <vbabka@...e.cz>,
	Jonathan Cameron <Jonathan.Cameron@...wei.com>,
	Harry Yoo <harry.yoo@...cle.com>, Rakie Kim <rakie.kim@...com>,
	Hyeonggon Yoo <42.hyeyoo@...il.com>,
	Joshua Hahn <joshua.hahnjy@...il.com>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v6 03/10] mm,memory_hotplug: Implement numa node notifier

On Mon, Jun 16, 2025 at 10:39:24AM +0200, David Hildenbrand wrote:
> It's suboptimal yes, But to get it right, you'd have to remmeber for exactly
> which notofiers you performed the calls ...

Yeah, definitely not straightforward.

> > I mean, yes, I guess we can put the burden on the users of
> > the notifiers to not assume anything, but then yes, I think we should document this
> > as it can lead to potential misbeliefs.
> 
> The burden is already on the users I think.

Yes, it's already on them, although I'm not sure if all of them are aware
though.
But anyway, let's just document it to have the ruleset clear.


-- 
Oscar Salvador
SUSE Labs