Hi ming On 05/30/2018 05:13 PM, Ming Lei wrote: >> Yes, it maybe good for merging of 'none', because the rq_list is split into 3 >> lists, and not need to iterate the whole rq_list any more. >> But what's about the dispatch when there is no io scheduler. > blk_mq_flush_busy_ctxs() and blk_mq_dequeue_from_ctx() should work > fine in case of 'none' if per-domain list is added to ctx. Then we can make > none to be a bit fair on READ/WRITE. > But how to determine when to dispatch READ, WRITE or other more, when there is no io scheduler ? Thanks Jianchao
