linux-kernel - Re: [RFC] Reentrant clock sources

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Message-ID: <20081126030720.GC8242@elte.hu>
Date:	Wed, 26 Nov 2008 04:07:20 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Thomas Gleixner <tglx@...utronix.de>
Cc:	Magnus Damm <magnus.damm@...il.com>, linux-kernel@...r.kernel.org,
	akpm@...ux-foundation.org, lethal@...ux-sh.org,
	johnstul@...ibm.com, mingo@...hat.com
Subject: Re: [RFC] Reentrant clock sources


* Thomas Gleixner <tglx@...utronix.de> wrote:

> > +	cycle_t (*vread)(struct clocksource *cs);
> 
> This is crap. vread can not access the clocksource.

i think 'reentrant' in the sense of creating self-sufficient driver 
entities. vread wont (and shouldnt) call ->vread() recursively - but 
it might want to access fields on the clocksource.

this way more dynamic clocksource drivers could be written. Am i 
missing something?

	Ingo
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