From: Martin Schwidefsky <schwidefsky@de.ibm.com>
Date: Tue, 2 Mar 2010 15:01:10 +0000 (+0100)
Subject: oprofile: convert oprofile from timer_hook to hrtimer
X-Git-Tag: v2.6.35-rc1~523^2~13
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bc078e4eab65f11bbaeed380593ab8151b30d703;p=pandora-kernel.git

oprofile: convert oprofile from timer_hook to hrtimer

Oprofile is currently broken on systems running with NOHZ enabled.
A maximum of 1 tick is accounted via the timer_hook if a cpu sleeps
for a longer period of time. This does bad things to the percentages
in the profiler output. To solve this problem convert oprofile to
use a restarting hrtimer instead of the timer_hook.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Robert Richter <robert.richter@amd.com>
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