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authorPeter Zijlstra <peterz@infradead.org>2013-12-11 10:09:53 (GMT)
committerIngo Molnar <mingo@kernel.org>2013-12-11 14:47:59 (GMT)
commit8e8339a3a1069141985daaa2521ba304509ddecd (patch)
treeacfef9f08997027721af46591be99d4dfde60f26 /kernel
parent17b2112f332db7c2bac56926c9e627807bce3615 (diff)
downloadlinux-8e8339a3a1069141985daaa2521ba304509ddecd.tar.xz
sched: Initialize power_orig for overlapping groups
Yinghai reported that he saw a /0 in sg_capacity on his EX parts. Make sure to always initialize power_orig now that we actually use it. Ideally build_sched_domains() -> init_sched_groups_power() would also initialize this; but for some yet unexplained reason some setups seem to miss updates there. Reported-by: Yinghai Lu <yinghai@kernel.org> Tested-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/n/tip-l8ng2m9uml6fhibln8wqpom7@git.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/sched/core.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index e85cda2..19af58f 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -5112,6 +5112,7 @@ build_overlap_sched_groups(struct sched_domain *sd, int cpu)
* die on a /0 trap.
*/
sg->sgp->power = SCHED_POWER_SCALE * cpumask_weight(sg_span);
+ sg->sgp->power_orig = sg->sgp->power;
/*
* Make sure the first group of this domain contains the