Re: Core kernel parameters and /sys/parameters?

[Marcel Holtmann <marcel@holtmann.org>]

Hi Rusty,

>>>   Was looking at implementing "core_param" for things like
>>> "initcall_debug" (ie. params with no prefix), and wanted to put  
>>> them in
>>> sysfs of course.  I hacked in a new "kernel" dir, but
>>> /sys/module/kernel/parameters/ is a bit of an odd place for it to  
>>> end up
>>> in.
>>>
>>>   I noticed this comment in params.c:
>>>
>>> * /sys/module/[mod->name]/parameters to /sys/parameters/[mod->name]/
>>>
>>> I like the idea of /sys/parameters/ much better (perhaps even with  
>>> core
>>> parameters at the top level).  Is this obsolete?  Planned?
>>
>> Did I write that comment?  I sure don't remember it, sorry :)
>>
>> I don't have any plans on changing this, but I do know people use the
>> /sys/module/MODULE_NAME/parameters interface today, why change it?
>
> Well mainly that many of them aren't modules, so if a change was  
> planned for
> some other reason I'd support it.
>
> And as I said, having core parameters (ie. converting things which  
> are current
> __setup) appear in /sys/module/kernel/parameters/ is a bit strange.

if you guys dislike /sys/module/kernel/* for core stuff, then you  
should do the change as soon as possible since userspace relies on it  
for a lot of tasks. Even I started using it. However I only want one  
general place for kernel/module parameters. A symlink might help us in  
the meantime to get the transition done smoothly.

Regards

Marcel