On Mon, Jul 02, 2018 at 09:13:35PM +0800, Ming Lei wrote: > On Mon, Jul 2, 2018 at 8:54 PM, Christoph Hellwig <hch@xxxxxxxxxxxxx> wrote: > > On Mon, Jul 02, 2018 at 01:06:42PM +0800, Ming Lei wrote: > >> With the introduced module parameter of 'use_blk_mq', it is easy > >> to switch between 'blk_mq' and 'non_blk_mq' by reloading scsi_debug > >> module, so that we can test scsi_mq/blk_mq related regressions easily. > > > > No. We should not make a per driver choice. > > Could you share us why we can't? Because it really is not a driver propery what code we use, it is one of the core scsi code. And intended as a temporary one, although it already has lasted far too long.
