linux-kernel - Re: [RFC][PATCH] irq: remove IRQF

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Message-ID: <20090302210158.GA18479@flint.arm.linux.org.uk>
Date:	Mon, 2 Mar 2009 21:01:58 +0000
From:	Russell King <rmk+lkml@....linux.org.uk>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	Matthew Wilcox <matthew@....cx>, Ingo Molnar <mingo@...e.hu>,
	Thomas Gleixner <tglx@...utronix.de>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	lkml <linux-kernel@...r.kernel.org>,
	linux-arch <linux-arch@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [RFC][PATCH] irq: remove IRQF_DISABLED

On Mon, Mar 02, 2009 at 04:59:48PM +0100, Peter Zijlstra wrote:
> The idea is to mandate IRQF_DISABLED for everybody, and since it doesn't
> do any good to have it a flag if you have it always enabled, remove
> it ;-)

Bad.  Very bad.

So, when I use PIO IDE on embedded platforms, I have to have all other
interrupts locked out for things like serial ports, network interfaces
with small packet buffers, etc and I can't specify IRQF_DISABLE on
such network interfaces anymore?

No, this is a step backwards.  Please don't go there.

-- 
Russell King
 Linux kernel    2.6 ARM Linux   - http://www.arm.linux.org.uk/
 maintainer of:
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