Messages in this thread Patch in this message | | | From | Bing Huang <> | Subject | [PATCH] sched/topology: Covered all cpus of same node in asymmetric node setups | Date | Sun, 30 Jul 2023 06:22:03 +0800 |
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in asymmetric node setups, if one cpu'sd spans is empty in some depth, others in same node do
Signed-off-by: Bing Huang <huangbing@kylinos.cn> --- kernel/sched/topology.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/kernel/sched/topology.c b/kernel/sched/topology.c index 7cfcfe5d27b9..8c5372ad7694 100644 --- a/kernel/sched/topology.c +++ b/kernel/sched/topology.c @@ -1045,8 +1045,10 @@ build_overlap_sched_groups(struct sched_domain *sd, int cpu) * Domains should always include the CPU they're built on, so * check that. */ - if (!cpumask_test_cpu(i, sched_domain_span(sibling))) + if (!cpumask_test_cpu(i, sched_domain_span(sibling))) { + cpumask_or(covered, covered, cpumask_of_node(cpu_to_node(i))); continue; + } /* * Usually we build sched_group by sibling's child sched_domain -- 2.25.1
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