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| author | Valentin Schneider <valentin.schneider@arm.com> | 2020-08-17 12:29:57 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2020-08-19 10:49:49 +0200 |
| commit | 3a6712c7685352a5d71eaf459a4fddfc3589f018 (patch) | |
| tree | 7e03fd93a67b8b0cb2570755f04c7ab49414f451 /kernel/sched | |
| parent | c200191d4c2c1aa2ffb62a984b756ac1f02dc55c (diff) | |
| download | linux-3a6712c7685352a5d71eaf459a4fddfc3589f018.tar.gz linux-3a6712c7685352a5d71eaf459a4fddfc3589f018.tar.bz2 linux-3a6712c7685352a5d71eaf459a4fddfc3589f018.zip | |
sched/topology: Mark SD_PREFER_SIBLING as SDF_NEEDS_GROUPS
SD_PREFER_SIBLING is currently considered in sd_parent_degenerate() but not
in sd_degenerate(). It too hinges on load balancing, and thus won't have
any effect when set on a domain with a single group. 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/20200817113003.20802-12-valentin.schneider@arm.com
Diffstat (limited to 'kernel/sched')
| -rw-r--r-- | kernel/sched/topology.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/sched/topology.c b/kernel/sched/topology.c index f36ed96f3197..c674aaab312c 100644 --- a/kernel/sched/topology.c +++ b/kernel/sched/topology.c @@ -184,7 +184,7 @@ sd_parent_degenerate(struct sched_domain *sd, struct sched_domain *parent) /* Flags needing groups don't count if only 1 group in parent */ if (parent->groups == parent->groups->next) - pflags &= ~(SD_DEGENERATE_GROUPS_MASK | SD_PREFER_SIBLING); + pflags &= ~SD_DEGENERATE_GROUPS_MASK; if (~cflags & pflags) return 0; |