On Thu, Jul 15, 2021 at 01:23:36PM -0700, Luis Chamberlain wrote: > The GENHD_FL_UP is used internally so we can know when we can add and > remove partitions, so just clarify that. Right now it has this 1980's > description comparing it to network drivers "ifconfig up" idea, and > that can easily lead to invalid uses. GENHD_FL_UP actually is pretty horrible - it uses a value used for something that should be mostly read only at device runtime for state an does so badly. I actually have a patch to kill it, as we can just check if the inode for the whole device blockdev is hashed instead.
