[tip: sched/core] sched/topology: Mark SD_BALANCE_WAKE as SDF_NEEDS_GROUPS

tip-bot2 for Valentin Schneider
2020-08-19T14:06:38Z

The following commit has been merged into the sched/core branch of tip:

Commit-ID: 94b858fea1f2246a2fb7f7af21840fd14ced028f
Gitweb: https://git.kernel.org/tip/94b858fea1f2246a2fb7f7af21840fd14ced028f
Author: Valentin Schneider <valentin.schneider@arm.com>
AuthorDate: Mon, 17 Aug 2020 12:29:58 +01:00
Committer: Ingo Molnar <mingo@kernel.org>
CommitterDate: Wed, 19 Aug 2020 10:49:49 +02:00

sched/topology: Mark SD_BALANCE_WAKE as SDF_NEEDS_GROUPS

Even if no mainline topology uses this flag, it is a load balancing flag
just like SD_BALANCE_FORK and 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/20200817113003.20802-13-valentin.schneider@arm.com
---
include/linux/sched/sd_flags.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/include/linux/sched/sd_flags.h b/include/linux/sched/sd_flags.h
index d28fe67..729510a 100644
--- a/include/linux/sched/sd_flags.h
+++ b/include/linux/sched/sd_flags.h
@@ -70,8 +70,9 @@ SD_FLAG(SD_BALANCE_FORK, SDF_SHARED_CHILD | SDF_NEEDS_GROUPS)
* Balance on wakeup
*
* SHARED_CHILD: Set from the base domain up to cpuset.sched_relax_domain_level.
+ * NEEDS_GROUPS: Load balancing flag.
*/
-SD_FLAG(SD_BALANCE_WAKE, SDF_SHARED_CHILD)
+SD_FLAG(SD_BALANCE_WAKE, SDF_SHARED_CHILD | SDF_NEEDS_GROUPS)

/*
* Consider waking task on waking CPU.