linux-kernel - Re: [PATCH 2/2] posix-cpu-timers: remove tasklist

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Message-ID: <20090612100212.06f56a79@dhcp-lab-109.englab.brq.redhat.com>
Date:	Fri, 12 Jun 2009 10:02:12 +0200
From:	Stanislaw Gruszka <sgruszka@...hat.com>
To:	Richard Kennedy <richard@....demon.co.uk>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Oleg Nesterov <oleg@...hat.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Ingo Molnar <mingo@...e.hu>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH 2/2] posix-cpu-timers: remove tasklist_lock where we can

On Fri, 12 Jun 2009 08:48:24 +0100
Richard Kennedy <richard@....demon.co.uk> wrote:

> > -	read_unlock(&tasklist_lock);
> > +	rcu_read_lock();
> >  
> Did you really intend to replace an unlock with a lock?

Intention was quite different. 

Thanks
Stanislaw 
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