From 019ad4a0a60b09022945273848b5a686e39a78aa Mon Sep 17 00:00:00 2001
From: Nigel Cunningham <nigel@nigel.suspend2.net>
Date: Tue, 18 Sep 2007 22:46:25 -0700
Subject: [PATCH] Fix failure to resume from initrds

Commit 831441862956fffa17b9801db37e6ea1650b0f69 (Freezer: make kernel
threads nonfreezable by default) breaks freezing when attempting to resume
from an initrd, because the init (which is freezeable) spins while waiting
for another thread to run /linuxrc, but doesn't check whether it has been
told to enter the refrigerator.  The original patch replaced a call to
try_to_freeze() with a call to yield().  I believe a simple reversion is
wrong because if !CONFIG_PM_SLEEP, try_to_freeze() is a noop.  It should
still yield.

Signed-off-by: Nigel Cunningham <nigel@nigel.suspend2.net>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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