linux-kernel - Re: [RFC v2 11/16] luo: luo_sysfs: add sysfs state monitoring

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Message-ID: <mafs0ldpvn07s.fsf@kernel.org>
Date: Fri, 13 Jun 2025 17:13:43 +0200
From: Pratyush Yadav <pratyush@...nel.org>
To: Pasha Tatashin <pasha.tatashin@...een.com>
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Subject: Re: [RFC v2 11/16] luo: luo_sysfs: add sysfs state monitoring

On Sun, Jun 08 2025, Pasha Tatashin wrote:

> On Thu, Jun 5, 2025 at 12:20 PM Pratyush Yadav <pratyush@...nel.org> wrote:
>>
>> On Thu, May 15 2025, Pasha Tatashin wrote:
>>
>> > Introduce a sysfs interface for the Live Update Orchestrator
>> > under /sys/kernel/liveupdate/. This interface provides a way for
>> > userspace tools and scripts to monitor the current state of the LUO
>> > state machine.
>>
>> I am not sure if adding and maintaining a new UAPI that does the same
>> thing is worth it. Can't we just have commandline utilities that can do
>> the ioctls and fetch the LUO state, and those can be called from tools
>> and scripts?
>>
>
> This is based on discussion from SystemD people. It is much simpler
> for units to check the current 'state' via sysfs, and act accordingly.

Ok, fair enough.

[...]

-- 
Regards,
Pratyush Yadav