From: Peter Zijlstra <a.p.zijlstra@chello.nl>
Date: Mon, 1 Sep 2008 14:44:23 +0000 (+0200)
Subject: sched_clock: fix NOHZ interaction
X-Git-Tag: v2.6.27-rc6~32^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=56c7426b3951e4f35a71d695f1c982989399d6fd;p=pandora-kernel.git

sched_clock: fix NOHZ interaction

If HLT stops the TSC, we'll fail to account idle time, thereby inflating the
actual process times. Fix this by re-calibrating the clock against GTOD when
leaving nohz mode.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Tested-by: Avi Kivity <avi@qumranet.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

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