On Thu, Apr 04, 2024 at 12:33:40PM +0300, Amir Goldstein wrote: > I don't follow what you are saying. > Which code is in non-starter violation? > kernfs for calling lookup_bdev() with internal of->mutex held? That is a huge problem, and has been causing endless annoying lockdep chains in the block layer for us. If we have some way to kill this the whole block layer would benefit.