Messages in this thread Patch in this message | | | From | Yury Norov <> | Subject | [PATCH v2 4/6] sched: fix sched_numa_find_nth_cpu() in non-NUMA case | Date | Sat, 19 Aug 2023 07:12:36 -0700 |
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When CONFIG_NUMA is enabled, sched_numa_find_nth_cpu() searches for a CPU in sched_domains_numa_masks. The masks includes only online CPUs, so effectively offline CPUs are skipped.
When CONFIG_NUMA is disabled, the fallback function should be consistent.
Fixes: cd7f55359c90 ("sched: add sched_numa_find_nth_cpu()") Signed-off-by: Yury Norov <yury.norov@gmail.com> --- include/linux/topology.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/topology.h b/include/linux/topology.h index fea32377f7c7..52f5850730b3 100644 --- a/include/linux/topology.h +++ b/include/linux/topology.h @@ -251,7 +251,7 @@ extern const struct cpumask *sched_numa_hop_mask(unsigned int node, unsigned int #else static __always_inline int sched_numa_find_nth_cpu(const struct cpumask *cpus, int cpu, int node) { - return cpumask_nth(cpu, cpus); + return cpumask_nth_and(cpu, cpus, cpu_online_mask); } static inline const struct cpumask * -- 2.39.2
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