Commit 8ab63d41 authored by Yury Norov's avatar Yury Norov Committed by Ingo Molnar
Browse files

sched/topology: Fix sched_numa_find_nth_cpu() in non-NUMA case 



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: cd7f5535 ("sched: add sched_numa_find_nth_cpu()")
Signed-off-by: default avatarYury Norov <yury.norov@gmail.com>
Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
Cc: Mel Gorman <mgorman@suse.de>
Link: https://lore.kernel.org/r/20230819141239.287290-5-yury.norov@gmail.com
parent 617f2c38

include/linux/topology.h

+1 −1
Original line number Diff line number Diff line
@@ -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 *