From: Gautham R Shenoy <ego@in.ibm.com>
Date: Wed, 2 Sep 2009 11:29:10 +0000 (+0530)
Subject: sched: Try to deal with low capacity, fix update_sd_power_savings_stats()
X-Git-Tag: v2.6.32-rc1~719^2~13
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d899a789c28ded9c72b57ddb61868d6b8fc23e80;p=pandora-kernel.git

sched: Try to deal with low capacity, fix update_sd_power_savings_stats()

sgs.group_capacity can now be 0, if for some reason
group->__cpu_power happens to be less than SCHED_LOAD_SCALE/2.

In that case, we need the following fix to make it work for
update_sd_power_savings_stats(). That's because both
sum_nr_running and group_capacity are unsigned longs.

Cc: Gautham R Shenoy <ego@in.ibm.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Andreas Herrmann <andreas.herrmann3@amd.com>
Cc: Balbir Singh <balbir@in.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

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