+static int cpu_to_queue_index(unsigned int nr_queues, const int cpu, + const struct cpumask *online_mask) { - return cpu * nr_queues / nr_cpus; + /* + * Non online CPU will be mapped to queue index 0. + */ + if (!cpumask_test_cpu(cpu, online_mask)) + return 0;Why not map offline cpus to what they would've map to if they were online?I didn't change logic for offline cpu's. Should it be done in this patch ?
The patch clearly treats offline cpus differently, maps them to queue 0.