On Tue, Nov 07, 2023 at 10:06:18AM +0100, Christian Brauner wrote: > > But it doesn't appear to me there's agreement on the way forward. vfsmounts > > aren't going to do anything from what I can tell, but I could very well be > > missing some detail. And Christian doesn't seem to want that as a solution. > > No, I really don't. > > I still think that it is fine to add a statx() flag indicating that a > file is located on a subvolume. That allows interested userspace to > bounce to an ioctl() where you can give it additional information in > whatever form you like. What is that flag going to buy us?