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| author |   Barry Song <song.bao.hua@hisilicon.com> | 2021-03-25 15:31:40 +1300 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2021-03-25 11:41:23 +0100 |
| commit | 0a2b65c03e9b47493e1442bf9c84badc60d9bffb (patch) | |
| tree | 7c7c0f12f5832e21470ad61b7e1ac5885bb8d79d /kernel/sched/topology.c | |
| parent | sched/core: Use -EINVAL in sched_dynamic_mode() (diff) | |
| download | linux-dev-0a2b65c03e9b47493e1442bf9c84badc60d9bffb.tar.xz linux-dev-0a2b65c03e9b47493e1442bf9c84badc60d9bffb.zip | |
sched/topology: Remove redundant cpumask_and() in init_overlap_sched_group()
mask is built in build_balance_mask() by for_each_cpu(i, sg_span), so
it must be a subset of sched_group_span(sg).
So the cpumask_and() call is redundant - remove it.
[ mingo: Adjusted the changelog a bit. ]
Signed-off-by: Barry Song <song.bao.hua@hisilicon.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Valentin Schneider <Valentin.Schneider@arm.com>
Link: https://lore.kernel.org/r/20210325023140.23456-1-song.bao.hua@hisilicon.com
Diffstat (limited to 'kernel/sched/topology.c')
| -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 f2066d682cd8..d1aec244c027 100644 --- a/kernel/sched/topology.c +++ b/kernel/sched/topology.c @@ -934,7 +934,7 @@ static void init_overlap_sched_group(struct sched_domain *sd, int cpu; build_balance_mask(sd, sg, mask); - cpu = cpumask_first_and(sched_group_span(sg), mask); + cpu = cpumask_first(mask); sg->sgc = *per_cpu_ptr(sdd->sgc, cpu); if (atomic_inc_return(&sg->sgc->ref) == 1) |