On Thu, Feb 17, 2022 at 07:55:16AM -0700, Jens Axboe wrote: > > from Jan 22. Although it would need a rebase so it can be applied > > without the preceding patches. > > Can someone respin that for 5.17 then? I looked at it and it I don't think we can do that without a lot of the prep patches. That being said I think this version of the patch also is buggy, we want the policies shut down in del_gendisk with the queue frozen for normal operation. I guess until we can move the initialization and teardown entirely to the gendisk as in Ming's more complex series we need to keep the call in del_gendisk and also do it in blk_cleanup_queue. For the normal shutdown on disk that were life del_gendisk does the all the work on the frozen queue, while for queues that never had a disk blk_cleanup_queue will clean up the unused rq_qos.
