linux-kernel - Re: [patch 4/4] Markers Support for Proprierary Modules

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Date:	Thu, 20 Mar 2008 18:24:53 -0400
From:	Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	"Frank Ch. Eigler" <fche@...hat.com>, akpm@...ux-foundation.org,
	linux-kernel@...r.kernel.org, Jon Masters <jcm@...masters.org>,
	Jon Masters <jcm@...hat.com>,
	Rusty Russell <rusty@...tcorp.com.au>,
	Christoph Hellwig <hch@...radead.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [patch 4/4] Markers Support for Proprierary Modules

* Ingo Molnar (mingo@...e.hu) wrote:
> 
> * Frank Ch. Eigler <fche@...hat.com> wrote:
> 
> > Ingo Molnar <mingo@...e.hu> writes:
> > 
[...]
> > > [if the proprietary modules attach to kernel markers ...] then all 
> > > the pressure is on those who _can_ fix their code - meaning the 
> > > kernel subsystem maintainers that use [you mean: define] markers.
> > 
> > (In a way, it would be a nice problem to have.  At this moment, there 
> > are still no markers actually committed within -mm nor -linus.)
> 
> ... which makes it doubly problematic to expose them to binary-only 
> modules in any way, shape or form. Really, once _any_ kernel facility is 
> used by such a module, it's pain for us to change it from that point on. 
> Once markers are a 10 year concept that nobody in their right mind would 
> want to change, sure, we dont _care_ about whether it's export or not, 
> and basic courtesy might say that it's OK to do it. But to proactively 
> export any aspect of a half-done piece of infrastructure is crazy.
> 
> 	Ingo

I agree with you on this : maybe it would be better to wait a bit and
let the core markers in first and learn from that before we open this up
to proprierary modules.

Mathieu

-- 
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F  BA06 3F25 A8FE 3BAE 9A68
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