linux-kernel - Re: [linux-pm] Run-time PM idea (was: Re: [RFC][PATCH 0/2] PM: Rearrange core suspend code)

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Date:	Mon, 8 Jun 2009 00:05:23 +0200
From:	Oliver Neukum <oliver@...kum.org>
To:	linux-pm@...ts.linux-foundation.org
Cc:	"Rafael J. Wysocki" <rjw@...k.pl>,
	Alan Stern <stern@...land.harvard.edu>,
	ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [linux-pm] Run-time PM idea (was: Re: [RFC][PATCH 0/2] PM: Rearrange core suspend code)

Am Sonntag, 7. Juni 2009 23:46:59 schrieb Rafael J. Wysocki:
> It may be necessary to resume a device synchronously, but I'm still
> thinking how to implement that.

This will absolutely be the default. You resume a device because you want
it to do something now. It seems to me that you making your problem worse
by using a spinlock as a lock. A mutex would make it easier.

	Regards
		Oliver

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