linux-kernel - Re: [PATH 1/5 -v2] acpi, IO memory pre-mapping and atomic accessing

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Message-ID: <20091218181144.GB1470@ucw.cz>
Date:	Fri, 18 Dec 2009 19:11:44 +0100
From:	Pavel Machek <pavel@....cz>
To:	Huang Ying <ying.huang@...el.com>
Cc:	lenb@...nel.org,
	ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
	Andi Kleen <ak@...ux.intel.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATH 1/5 -v2] acpi, IO memory pre-mapping and atomic accessing

Hi!

> Some ACPI IO accessing need to be done in atomic context. For example,

Does it? Maybe better fix would be to make sure acpi interpretter
can't be ran from interrupt context -- just create threads for it...?

It would solve a lot of uglyness with acpi trying to guess if it can
sleep etc...
								Pavel

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