linux-kernel - Re: [PATCH] timers: Handle HRTIMER_CB_IRQSAFE

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Message-ID: <20081027132159.GF25371@elte.hu>
Date:	Mon, 27 Oct 2008 14:21:59 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Cc:	Gautham R Shenoy <ego@...ibm.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] timers: Handle HRTIMER_CB_IRQSAFE_UNLOCKED correctly
	from softirq context


* Paul E. McKenney <paulmck@...ux.vnet.ibm.com> wrote:

> > > > Fix this by emulating hardirq context while running these callbacks from
> > > > the hrtimer softirq.
> > > 
> > > Good catch!!!  One confusion (probably on my part) below.
> > 
> > Hmm.. Let's see...
> 
> Gah!!!
> 
> I am so used to seeing sequences of code that disable irqs and then 
> re-enable them that I misread the original, failing to see that you 
> were -enabling- irqs and then re-disabling them.  :-/
> 
> Never mind!!!  Sorry for the noise...

ok - i've applied Gautham's fix to tip/timers/urgent, with your and 
Peter's Acked-by lines.

	Ingo
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