Re: [PATCH V4] notifier/panic: Introduce panic_notifier_filter

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On 08/03/2022 09:54, Petr Mladek wrote:
> [...]
> Honestly, I am not that keen about enforcing the priorities.
> 
> It would make sense only when the ordering is really important.
> Then there should be some rules. It should be obvious why
> something has to be done earlier than something else.
> 
> From my POV, it is just another complexity. Someone will need to
> assign the priority to the existing notifiers. People will wonder
> about it for newly added notifiers.
> 
> Reproducibility seems to be the only motivation. Is it really a
> problem? Do the notifiers affect each other?
> 
> Also the notifiers are typically registered by some early boot
> code. It will define some ordering out of box.
> 
> Best Regards,
> Petr

OK Petr, makes sense. I feel that one the pros of the approach would be
to document all the notifiers in the header, but I guess nothing
prevents me to do that heh
I don't need enforcing the priorities for this.

I liked the idea of having everything "reproducible" as you said, but we
could face the problem of how to order some independent notifiers...
would be something "ad-hoc".

I'll progress here without priorities for now, if somebody see an
advantage for that, we can use it.

Thanks for your points,


Guilherme

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