Date: Thu, 2 Oct 2008 14:31:46 -0700
From: Greg KH <greg@kroah.com>
To: Andi Kleen <andi@firstfloor.org>
Cc: Thomas Gleixner <tglx@linutronix.de>, LKML <linux-kernel@vger.kernel.org>,
       Linus Torvalds <torvalds@osdl.org>,
       Andrew Morton <akpm@linux-foundation.org>, Ingo Molnar <mingo@elte.hu>,
       Arjan van de Veen <arjan@infradead.org>,
       Benjamin Herrenschmidt <benh@kernel.crashing.org>,
       Steven Rostedt <rostedt@goodmis.org>,
       Jon Masters <jonathan@jonmasters.org>,
       Sven Dietrich <sdietrich@suse.de>
Subject: Re: [RFC patch 0/5] genirq: add infrastructure for threaded
	interrupt handlers
Message-ID: <20081002213146.GA9201@kroah.com>
References: <20081001223213.078984344@linutronix.de> <873ajfoy1a.fsf@basil.nowhere.org>
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On Thu, Oct 02, 2008 at 04:46:09PM +0200, Andi Kleen wrote:
> Thomas Gleixner <tglx@linutronix.de> writes:
> >
> >  - move long running handlers out of the hard interrupt context
> 
> I'm not sure I'm really looking forward to this brave new world
> of very long running interrupt handlers. e.g. what do you
> do for example when some handler blocks for a very long time?

We have this issue today with some irqs (USB is known for issue here...)

So I don't think this is a big issue, and in the end, a better idea as
it might force us to confront some of the big abusers and fix them.

thanks,

greg k-h
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