On Mon, Jan 06, 2025 at 04:40:52PM +0100, Tomáš Mudruňka wrote: > > the bitmap format is not a userspace ABI, it is an on-disk format. > > As such it does not belong into the uapi. It might make sense to > > create a clean standalone header just for the on-disk format that > > you could copy, though. > > If you inspect the header in question, you'll find that this is the exact > reason why this header exists. To describe "physical layout" of > MD RAID devices. Which is just fancy way to say "on disk format". Well, then MD already gets it wrong. No reason to do more of the same.