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sched/topology: Mark SD_ASYM_PACKING as SDF_NEEDS_GROUPS

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Being a load-balancing flag, it requires 2+ groups to have any effect.

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/20200817113003.20802-15-valentin.schneider@arm.com
This commit is contained in:
Valentin Schneider 2020-08-17 12:30:00 +01:00 committed by Ingo Molnar
parent bdb7c802cc
commit 33199b0143
1 changed files with 4 additions and 3 deletions
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7
include/linux/sched/sd_flags.h
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@ -123,10 +123,11 @@ SD_FLAG(SD_SERIALIZE, SDF_SHARED_PARENT | SDF_NEEDS_GROUPS)
* Place busy tasks earlier in the domain
*
* SHARED_CHILD: Usually set on the SMT level. Technically could be set further
* up, but currently assumed to be set from the base domain upwards (see
* update_top_cache_domain()).
* up, but currently assumed to be set from the base domain
* upwards (see update_top_cache_domain()).
* NEEDS_GROUPS: Load balancing flag.
*/
SD_FLAG(SD_ASYM_PACKING, SDF_SHARED_CHILD)
SD_FLAG(SD_ASYM_PACKING, SDF_SHARED_CHILD | SDF_NEEDS_GROUPS)
/*
* Prefer to place tasks in a sibling domain