On Sun, Jul 25 2021 at 1:54P -0400, Christoph Hellwig <hch@xxxxxx> 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. s/not/now/ > This did not make a different to my testing > using dmsetup and the lvm2 tools. I'll try these changes running through the lvm2 testsuite. -- dm-devel mailing list dm-devel@xxxxxxxxxx https://listman.redhat.com/mailman/listinfo/dm-devel
