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| author | Yury Norov <yury.norov@gmail.com> | 2023-08-19 07:12:36 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-11-20 11:56:42 +0100 |
| commit | 107688f52ae3fe382640442578fdb021d94a63cc (patch) | |
| tree | 34fd903af4ddad3abd1ebe8d4438761fa41d9409 /include | |
| parent | e213ce7956cd09e22f8f2b3d1edf803dc06911f3 (diff) | |
| download | linux-stable-107688f52ae3fe382640442578fdb021d94a63cc.tar.gz linux-stable-107688f52ae3fe382640442578fdb021d94a63cc.tar.bz2 linux-stable-107688f52ae3fe382640442578fdb021d94a63cc.zip | |
sched/topology: Fix sched_numa_find_nth_cpu() in non-NUMA case
[ Upstream commit 8ab63d418d4339d996f80d02a00dbce0aa3ff972 ]
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>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Mel Gorman <mgorman@suse.de>
Link: https://lore.kernel.org/r/20230819141239.287290-5-yury.norov@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/topology.h | 2 |
1 files changed, 1 insertions, 1 deletions
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 * |