linux-kernel - Re: [RFC patch] extable and module add object is static

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Message-ID: <20100329131633.GA22730@Krystal>
Date:	Mon, 29 Mar 2010 09:16:34 -0400
From:	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>
To:	Peter Zijlstra <peterz@...radead.org>, Tejun Heo <tj@...nel.org>
Cc:	Lai Jiangshan <laijs@...fujitsu.com>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	akpm@...ux-foundation.org, Ingo Molnar <mingo@...e.hu>,
	linux-kernel@...r.kernel.org, dipankar@...ibm.com,
	josh@...htriplett.org, dvhltc@...ibm.com, niv@...ibm.com,
	tglx@...utronix.de, rostedt@...dmis.org, Valdis.Kletnieks@...edu,
	dhowells@...hat.com, eric.dumazet@...il.com, adobriyan@...il.com
Subject: Re: [RFC patch] extable and module add object is static

* Peter Zijlstra (peterz@...radead.org) wrote:
> On Mon, 2010-03-29 at 09:39 +0800, Lai Jiangshan wrote:
> > Mathieu Desnoyers wrote:
> > > +static int core_object_is_static(void *obj)
> > > +{
> > [...]
> > > +	if (addr >= (unsigned long)__per_cpu_start &&
> > > +	    addr <= (unsigned long)__per_cpu_end)
> > > +		return 1;
> > 
> > This may only correct for UP.
> > You may need arch-special codes for SMP.
> > 
> 
> Tejun has patches for this.
> 

That's great! Tejun, can you point me out to an update version of these
patches ? I am particularly interested in being able to know the range of
statically defined per-cpu data.

Thanks,

Mathieu

-- 
Mathieu Desnoyers
Operating System Efficiency R&D Consultant
EfficiOS Inc.
http://www.efficios.com
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