linux-kernel - Re: 2.6.24-git: kmap_atomic() WARN

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Message-ID: <20080226083904.GC9857@elte.hu>
Date:	Tue, 26 Feb 2008 09:39:04 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Jeff Garzik <jgarzik@...ox.com>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Björn Steinbrink <B.Steinbrink@....de>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: 2.6.24-git: kmap_atomic() WARN_ON()


* Jeff Garzik <jgarzik@...ox.com> wrote:

> +	unsigned long flags;
> +
> +	local_irq_save(flags);

hm, couldnt we attach the irq disabling to some spinlock, in a natural 
way? Explicit flags fiddling is a PITA once we do things like threaded 
irq handlers, -rt, etc.

	Ingo
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