linux-kernel - Re: [PATCHv7 7/7] liveupdate: kho: move kho debugfs directory to liveupdate

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CA+CK2bDUNfHBX=VpCww8ERa__+CUM5-a7pEi=hSu-W+S_-JXng@mail.gmail.com>
Date: Fri, 24 Oct 2025 09:33:32 -0400
From: Pasha Tatashin <pasha.tatashin@...een.com>
To: Mike Rapoport <rppt@...nel.org>
Cc: akpm@...ux-foundation.org, brauner@...nel.org, corbet@....net, 
	graf@...zon.com, jgg@...pe.ca, linux-kernel@...r.kernel.org, 
	linux-kselftest@...r.kernel.org, linux-mm@...ck.org, masahiroy@...nel.org, 
	ojeda@...nel.org, pratyush@...nel.org, rdunlap@...radead.org, tj@...nel.org
Subject: Re: [PATCHv7 7/7] liveupdate: kho: move kho debugfs directory to liveupdate

On Thu, Oct 23, 2025 at 3:32 AM Mike Rapoport <rppt@...nel.org> wrote:
>
> On Tue, Oct 21, 2025 at 08:57:19PM -0400, Pasha Tatashin wrote:
> > Now, that LUO and KHO both live under kernel/liveupdate, it makes
> > sense to also move the kho debugfs files to liveupdate/
>
> But we don't have LUO yet :/

Yes, I need to update the comment :-)

>
> > The old names:
> > /sys/kernel/debug/kho/out/
> > /sys/kernel/debug/kho/in/
> >
> > The new names:
> > /sys/kernel/debug/liveupdate/kho_out/
> > /sys/kernel/debug/liveupdate/kho_in/
> >
> > Also, export the liveupdate_debufs_root, so future LUO selftests could
> > use it as well.
>
> Let's postpone this change until then.
> TBH, I don't see anything wrong with KHO and LUO selftest debugfs files living at the top
> level, i.e

It is not only about selftests, we are planning to add kexec telemetry
that is going to be using KHO, and that should also be placed in the
same directory. Let's keep them neatly in the same root directory, so
we can use them for LUO/KHO/Telemetry and perhaps for other reasons.

I also think, this patch is small, so it would be beneficial to land
it now, and make it easier for LUO, and soon to be sent out the
Telemetry series.

Pasha