linux-kernel - Re: [PATCH] uio: User IRQ Mode

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Message-ID: <20080704091629.66576eb7@lxorguk.ukuu.org.uk>
Date:	Fri, 4 Jul 2008 09:16:29 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Uwe Kleine-König <Uwe.Kleine-Koenig@...i.com>
Cc:	Magnus Damm <magnus.damm@...il.com>,
	"Hans J. Koch" <hjk@...utronix.de>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"gregkh@...e.de" <gregkh@...e.de>,
	"akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
	"lethal@...ux-sh.org" <lethal@...ux-sh.org>,
	"tglx@...utronix.de" <tglx@...utronix.de>
Subject: Re: [PATCH] uio: User IRQ Mode

> 	Note that this implies that the interrupt might be disabled for
> 	long periods, so this isn't usable for shared interrupt lines.

It isn't usable for shared lines anyway - because you would have deadlocks
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