On 19/04/23 22:19, Yury Norov wrote: > +/** > + * for_each_numa_cpu - iterate over cpus in increasing order taking into account > + * NUMA distances from a given node. > + * @cpu: the (optionally unsigned) integer iterator > + * @hop: the iterator variable, must be initialized to a desired minimal hop. > + * @node: the NUMA node to start the search from. > + * @mask: the cpumask pointer > + * > + * Requires rcu_lock to be held. > + */ > +#define for_each_numa_cpu(cpu, hop, node, mask) \ > + for ((cpu) = 0, (hop) = 0; \ > + (cpu) = sched_numa_find_next_cpu((mask), (cpu), (node), &(hop)),\ > + (cpu) < nr_cpu_ids; \ > + (cpu)++) > + I think we can keep sched_numa_find_next_cpu() as-is, but could we make that macro use cpu_possible_mask by default? We can always add a variant if/when we need to feed in a different mask. > #endif /* _LINUX_TOPOLOGY_H */ > -- > 2.34.1
