sched/deadline: Optimize dl_bw_cpus()

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Return the weight of the root domain (rd) span in case it is a subset
of the cpu_active_mask.

Continue to compute the number of CPUs over rd span and cpu_active_mask
when in hotplug.

Signed-off-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Juri Lelli <juri.lelli@redhat.com>
Link: https://lkml.kernel.org/r/20200520134243.19352-2-dietmar.eggemann@arm.com

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Dietmar Eggemann 2020-05-20 15:42:39 +02:00 • committed by Peter Zijlstra

parent 9b1b234bb8

commit c81b893299

1 changed files with 7 additions and 1 deletions

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kernel/sched/deadline.c

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