From: Thomas Gleixner <tglx@linutronix.de>
Date: Mon, 22 Dec 2008 22:05:28 +0000 (+0100)
Subject: sched_clock: prevent scd->clock from moving backwards, take #2
X-Git-Tag: v2.6.27.12~75
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7d75e838bb5a3b2ec427b4121d4404f6b5689aae;p=pandora-kernel.git

sched_clock: prevent scd->clock from moving backwards, take #2

commit 1c5745aa380efb6417b5681104b007c8612fb496 upstream.

Redo:

  5b7dba4: sched_clock: prevent scd->clock from moving backwards

which had to be reverted due to s2ram hangs:

  ca7e716: Revert "sched_clock: prevent scd->clock from moving backwards"

... this time with resume restoring GTOD later in the sequence
taken into account as well.

The "timekeeping_suspended" flag is not very nice but we cannot call into
GTOD before it has been properly resumed and the scheduler will run very
early in the resume sequence.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

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