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Message-Id: <ECB4FB22-EF4D-4755-AEB8-303E7869EBEC@holtmann.org>
Date: Fri, 15 Aug 2008 04:16:27 +0200
From: Marcel Holtmann <marcel@...tmann.org>
To: Rusty Russell <rusty@...tcorp.com.au>
Cc: Greg KH <greg@...ah.com>, arjan@...ux.intel.com,
linux-kernel@...r.kernel.org
Subject: Re: Core kernel parameters and /sys/parameters?
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
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