On Wed, May 26, 2021 at 12:41:37AM +0200, Ulf Hansson wrote: > On Fri, 21 May 2021 at 07:51, Christoph Hellwig <hch@xxxxxx> wrote: > > > > Hi all, > > > > this series is the first part of cleaning up lifetimes and allocation of > > the gendisk and request_queue structure. It adds a new interface to > > allocate the disk and queue together for bio based drivers, and a helper > > for cleanup/free them when a driver is unloaded or a device is removed. > > May I ask what else you have in the pipe for the next steps? > > The reason why I ask is that I am looking into some issues related to > lifecycle problems of gendisk/mmc, typically triggered at SD/MMC card > removal. In the short run not much more than superficial cleanups. Eventually I want bio based drivers to not require a separate request_queue, leaving that purely as a data structure for blk-mq based drivers. But it will take a while until we get there, so it should not block any fixes. For hot unplug handling it might be worth to take a look at nvme, as it is tested a lot for that case.
