From mboxrd@z Thu Jan  1 00:00:00 1970
From: Russell King - ARM Linux <linux@arm.linux.org.uk>
Subject: Re: [RFC/PATCH] arm: oprofile: remove locking from suspend/resume
Date: Wed, 19 May 2010 08:04:59 +0100
Message-ID: <20100519070459.GA22212@n2100.arm.linux.org.uk>
References: <1274227981-20130-1-git-send-email-khilman@deeprootsystems.com>
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To: Kevin Hilman <khilman@deeprootsystems.com>
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On Tue, May 18, 2010 at 05:13:01PM -0700, Kevin Hilman wrote:
> Since oprofile is a sysdev, its suspend/resume methods are called with
> interrupts disabled.  Using a mutex (which might sleep) in this atomic
> context is not safe.

It isn't a sysdev anymore.  Suggest you take a look at the ARM tree once
in a while.