From 4eb241e5691363c391aac8a5051d0d013188ec84 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rjw@sisk.pl>
Date: Wed, 7 Jul 2010 23:43:51 +0200
Subject: [PATCH] PM: Do not use dynamically allocated objects in
 pm_wakeup_event()

Originally, pm_wakeup_event() uses struct delayed_work objects,
allocated with GFP_ATOMIC, to schedule the execution of pm_relax()
in future.  However, as noted by Alan Stern, it is not necessary to
do that, because all pm_wakeup_event() calls can use one static timer
that will always be set to expire at the latest time passed to
pm_wakeup_event().

The modifications are based on the example code posted by Alan.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
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