On 8/4/21 3:41 AM, Christoph Hellwig wrote: > Hi all, > > The device mapper code currently has a somewhat odd gendisk registration > scheme where it calls add_disk early, but uses a special flag to skip the > "queue registration", which is a major part of add_disk. This series > improves the block layer holder tracking to work on an entirely > unregistered disk and thus allows device mapper to use the normal scheme > of calling add_disk when it is ready to accept I/O. > > Note that this leads to a user visible change - the sysfs attributes on > the disk and the dm directory hanging off it are not only visible once > the initial table is loaded. This did not make a different to my testing > using dmsetup and the lvm2 tools. Applied, thanks. -- Jens Axboe
