On Thu, Jan 19, 2023 at 06:05:26PM +0100, Christoph Hellwig wrote: > Yes, it can. Not sure if my sentence was unclear, but: > > - everything doing non-passthrough I/O only should be in the gendisk > - everything related to blk-mq, including infrastruture for passthrough > should remain in the request_queue > > The idea that the request_queue will eventually become a blk-mq only > data structure and not exist (or just have a very leight weight stub) > for bio based drivers. That makes sense. I was thinking about it the other way around. Yeah, genhd would exist for everybody. request_queue only for the ones which are actually handling rq's. Thanks. -- tejun