On Fri, Mar 31, 2017 at 11:59:24AM -0700, Omar Sandoval wrote:
> @@ -2629,11 +2639,12 @@ void blk_mq_update_nr_hw_queues(struct blk_mq_tag_set *set, int nr_hw_queues)
> set->nr_hw_queues = nr_hw_queues;
> list_for_each_entry(q, &set->tag_list, tag_set_list) {
> blk_mq_realloc_hw_ctxs(set, q);
> - blk_mq_queue_reinit(q, cpu_online_mask);
> + blk_mq_queue_reinit(q, cpu_online_mask, true);
I think you want to call blk_mq_update_queue_map directly outside this
loop rather than for each queue through blk_mq_queue_reinit. We only
need to map the queues once per tagset rather than per queue.
