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Commit 8e8339a3 authored by Peter Zijlstra's avatar Peter Zijlstra Committed by Ingo Molnar
Browse files

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: default avatarYinghai Lu <yinghai@kernel.org>
Tested-by: default avatarYinghai Lu <yinghai@kernel.org>
Signed-off-by: default avatarPeter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-l8ng2m9uml6fhibln8wqpom7@git.kernel.org


Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
parent 17b2112f

kernel/sched/core.c

+1 −0
Original line number Diff line number Diff line
@@ -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