[RFC PATCH v1 1/7] fs: Add inode_get_ino() and implement get_ino() for NFS

[Christoph Hellwig]

On Fri, Oct 11, 2024 at 03:52:42PM +0200, Mickaël Salaün wrote:
> > > Yes, but how do you call getattr() without a path?
> > 
> > You don't because inode numbers are irrelevant without the path.
> 
> They are for kernel messages and audit logs.  Please take a look at the
> use cases with the other patches.

It still is useless.  E.g. btrfs has duplicate inode numbers due to
subvolumes.

If you want a better pretty but not useful value just work on making
i_ino 64-bits wide, which is long overdue.