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authorValentin Schneider <valentin.schneider@arm.com>2020-08-17 12:30:00 +0100
committerIngo Molnar <mingo@kernel.org>2020-08-19 10:49:49 +0200
commit33199b0143daf4778d6301f966cb914d75f122eb (patch)
treef68e73028c0aeadbb71c18e92ff851c8cdb94179
parentbdb7c802cc0a7e21f5223dc3ce41b7ac220c576e (diff)
sched/topology: Mark SD_ASYM_PACKING as SDF_NEEDS_GROUPS
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
-rw-r--r--include/linux/sched/sd_flags.h7
1 files changed, 4 insertions, 3 deletions
diff --git a/include/linux/sched/sd_flags.h b/include/linux/sched/sd_flags.h
index b7f4d80e338e..2998ece2c18d 100644
--- a/include/linux/sched/sd_flags.h
+++ b/include/linux/sched/sd_flags.h
@@ -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