From: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
To: Ingo Molnar <mingo@elte.hu>
Cc: "Frank Ch. Eigler" <fche@redhat.com>,
akpm@linux-foundation.org, linux-kernel@vger.kernel.org,
Jon Masters <jcm@jonmasters.org>, Jon Masters <jcm@redhat.com>,
Rusty Russell <rusty@rustcorp.com.au>,
Christoph Hellwig <hch@infradead.org>,
Linus Torvalds <torvalds@linux-foundation.org>
Subject: Re: [patch 4/4] Markers Support for Proprierary Modules
Date: Thu, 20 Mar 2008 18:24:53 -0400 [thread overview]
Message-ID: <20080320222453.GB15511@Krystal> (raw)
In-Reply-To: <20080320220540.GA29012@elte.hu>
* Ingo Molnar (mingo@elte.hu) wrote:
>
> * Frank Ch. Eigler <fche@redhat.com> wrote:
>
> > Ingo Molnar <mingo@elte.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
next prev parent reply other threads:[~2008-03-20 22:25 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-03-20 0:27 [patch 0/4] Markers updates for 2.6.25-rc6 Mathieu Desnoyers
2008-03-20 0:27 ` [patch 1/4] Markers - depends on not PREEMPT_RCU Mathieu Desnoyers
2008-03-20 19:03 ` Ingo Molnar
2008-03-20 19:49 ` Paul E. McKenney
2008-03-20 0:27 ` [patch 2/4] Markers - Update preempt_disable. call_rcu, rcu_barrier comments Mathieu Desnoyers
2008-03-20 0:27 ` [patch 3/4] Markers - Remove ACCESS_ONCE Mathieu Desnoyers
2008-03-20 0:27 ` [patch 4/4] Markers Support for Proprierary Modules Mathieu Desnoyers
2008-03-20 5:35 ` Rusty Russell
2008-03-20 12:30 ` Mathieu Desnoyers
2008-03-20 8:38 ` Christoph Hellwig
2008-03-20 19:12 ` Ingo Molnar
2008-03-20 19:18 ` Jon Masters
2008-03-20 22:15 ` Ingo Molnar
2008-03-20 20:17 ` Frank Ch. Eigler
2008-03-20 22:05 ` Ingo Molnar
2008-03-20 22:24 ` Mathieu Desnoyers [this message]
2008-03-20 22:22 ` Mathieu Desnoyers
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