linux-kernel - Re: [PATCH 1/2] Add for_each

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Message-ID: <20100922125202.GC5766@basil.fritz.box>
Date:	Wed, 22 Sep 2010 14:52:02 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	Thomas Gleixner <tglx@...utronix.de>
Cc:	Andi Kleen <andi@...stfloor.org>, jbaron@...hat.com,
	rostedt@...dmis.com, linux-kernel@...r.kernel.org, mingo@...e.hu,
	mathieu.desnoyers@...ymtl.ca, hpa@...or.com, roland@...hat.com,
	rth@...hat.com, mhiramat@...hat.com, fweisbec@...il.com,
	avi@...hat.com, davem@...emloft.net, vgoyal@...hat.com,
	sam@...nborg.org, tony@...eyournoodle.com,
	Andi Kleen <ak@...ux.intel.com>
Subject: Re: [PATCH 1/2] Add for_each_module iterator function

> > +void for_each_module(void (*op)(struct module *, void *arg), void *arg)
> > +{
> > +	struct module *mod;
> > +
> > +	preempt_disable();
> 
>   That wants rcu_read_lock()

Thanks. It was wrong anyways for the intended use case, 
switched to module_mutex now.

BTW I think i copied this from somewhere else in module.c
Probably should be fixed there too.

-Andi

-- 
ak@...ux.intel.com -- Speaking for myself only.
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