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sched/topology: Mark SD_NUMA as SDF_NEEDS_GROUPS
There would be no point in preserving a sched_domain with a single group just because it has this flag set. Add it to SD_DEGENERATE_GROUPS_MASK. Signed-off-by: Valentin Schneider <valentin.schneider@arm.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: https://lore.kernel.org/r/20200817113003.20802-17-valentin.schneider@arm.com
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@ -151,5 +151,6 @@ SD_FLAG(SD_OVERLAP, SDF_SHARED_PARENT | SDF_NEEDS_GROUPS)
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* Cross-node balancing
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*
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* SHARED_PARENT: Set for all NUMA levels above NODE.
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* NEEDS_GROUPS: No point in preserving domain if it has a single group.
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*/
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SD_FLAG(SD_NUMA, SDF_SHARED_PARENT)
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SD_FLAG(SD_NUMA, SDF_SHARED_PARENT | SDF_NEEDS_GROUPS)
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