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[ Upstream commit 9ecea9ae4d3127a09fb5dfcea87f248937a39ff5 ] sched_numa_find_nth_cpu() doesn't handle NUMA_NO_NODE properly, and may crash kernel if passed with it. On the other hand, the only user of sched_numa_find_nth_cpu() has to check NUMA_NO_NODE case explicitly. It would be easier for users if this logic will get moved into 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/20230819141239.287290-6-yury.norov@gmail.com Signed-off-by: Sasha Levin <sashal@kernel.org>