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Date: Sun, 1 Sep 2002 16:09:26 -0600 (MDT)
From: Thunder from the hill <thunder@lightweight.ods.org>
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To: Oliver Neukum <oliver@neukum.name>
cc: Thunder from the hill <thunder@lightweight.ods.org>,
       Ralf Baechle <ralf@uni-koblenz.de>, <linux-kernel@vger.kernel.org>
Subject: Re: question on spinlocks
In-Reply-To: <200209020002.41381.oliver@neukum.name>
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Hi,

On Mon, 2 Sep 2002, Oliver Neukum wrote:
> > > No; spin_lock_irqsave/spin_unlock_irqrestore and spin_lock/spin_unlock
> > > have to be used in matching pairs.
> >
> > If it was his least problem! He'll run straight into a "schedule w/IRQs
> > disabled" bug.
> 
> OK, how do I drop an irqsave spinlock if I don't have flags?

IMHO you might even ask "How do I start a car when I don't have the keys?"

You might find a way, but it's not desired. Are you sure you want to 
reschedule in an interrupt handler? If it's none, are you sure you want to 
disable interrupts?

			Thunder
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