From: Russell King <rmk+lkml@arm.linux.org.uk>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Matthew Wilcox <matthew@wil.cx>, Ingo Molnar <mingo@elte.hu>,
Thomas Gleixner <tglx@linutronix.de>,
Linus Torvalds <torvalds@linux-foundation.org>,
lkml <linux-kernel@vger.kernel.org>,
linux-arch <linux-arch@vger.kernel.org>,
Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [RFC][PATCH] irq: remove IRQF_DISABLED
Date: Mon, 2 Mar 2009 21:01:58 +0000 [thread overview]
Message-ID: <20090302210158.GA18479@flint.arm.linux.org.uk> (raw)
In-Reply-To: <1236009588.5330.729.camel@laptop>
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:
next prev parent reply other threads:[~2009-03-02 21:03 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-02 12:21 [RFC][PATCH] irq: remove IRQF_DISABLED Peter Zijlstra
2009-03-02 14:43 ` Ingo Molnar
2009-03-02 15:47 ` Matthew Wilcox
2009-03-02 15:59 ` Peter Zijlstra
2009-03-02 16:32 ` Matthew Wilcox
2009-03-02 21:01 ` Russell King [this message]
2009-03-02 21:17 ` Ingo Molnar
2009-03-02 21:17 ` Ingo Molnar
2009-03-02 17:11 ` Linus Torvalds
2009-03-02 17:55 ` Bartlomiej Zolnierkiewicz
2009-03-02 18:02 ` Peter Zijlstra
2009-03-02 18:07 ` Peter Zijlstra
2009-03-02 18:27 ` Bartlomiej Zolnierkiewicz
2009-03-02 18:29 ` Linus Torvalds
2009-03-02 18:48 ` Bartlomiej Zolnierkiewicz
2009-03-02 19:06 ` Linus Torvalds
2009-03-02 19:18 ` Bartlomiej Zolnierkiewicz
2009-03-02 17:56 ` Peter Zijlstra
2009-03-02 18:45 ` Vadim Lobanov
2009-03-02 18:45 ` Vadim Lobanov
2009-03-02 18:54 ` Linus Torvalds
2009-03-05 15:40 ` Mark Lord
2009-03-02 21:17 ` Alan Cox
2009-03-02 21:17 ` Alan Cox
2009-03-06 8:58 ` Benjamin Herrenschmidt
2009-03-06 9:12 ` Peter Zijlstra
2009-03-06 9:59 ` Benjamin Herrenschmidt
2009-03-06 10:05 ` Benjamin Herrenschmidt
2009-03-06 10:24 ` Peter Zijlstra
2009-03-06 17:02 ` Peter Zijlstra
2009-03-06 21:40 ` Benjamin Herrenschmidt
2009-03-02 17:55 ` Andrew Morton
2009-03-02 18:10 ` Peter Zijlstra
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