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Date: Sat, 7 Mar 2026 10:30:06 +0100
From: Peter Zijlstra <peterz@infradead.org>
To: Nicholas Sielicki <linux@opensource.nslick.com>
Cc: Luis Chamberlain <mcgrof@kernel.org>, Petr Pavlu <petr.pavlu@suse.com>,
	Daniel Gomez <da.gomez@kernel.org>,
	Sami Tolvanen <samitolvanen@google.com>,
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	Randy Dunlap <rdunlap@infradead.org>, linux-modules@vger.kernel.org,
	linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 1/2] module: expose imported namespaces via sysfs
Message-ID: <20260307093006.GU606826@noisy.programming.kicks-ass.net>
References: <20260307090010.20828-1-linux@opensource.nslick.com>
 <20260307090010.20828-2-linux@opensource.nslick.com>
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In-Reply-To: <20260307090010.20828-2-linux@opensource.nslick.com>

On Sat, Mar 07, 2026 at 03:00:09AM -0600, Nicholas Sielicki wrote:
> Previously, the only way for userspace to inspect the symbol
> namespaces a module imports is to locate the .ko on disk and invoke
> modinfo(8) to decompress/parse the metadata. The kernel validated
> namespaces at load time, but it was otherwise discarded.
> 
> Add /sys/module/*/import_ns to expose imported namespaces for
> currently loaded modules. The file contains one namespace per line and
> only exists for modules that import at least one namespace.

What I'm missing here is why users would care about this?