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

[Christoph Hellwig]

On Fri, Oct 11, 2024 at 11:27:45PM +0900, Tetsuo Handa wrote:
> Or, some filesystems are already using inode numbers beyond UINT_MAX but the
> capacity limitation on 32-bit architectures practically prevented users from
> creating/mounting filesystems with so many inodes enough to require inode
> numbers going beyond UINT_MAX?

Plenty of file systems use 64-bit inode numbers.  XFS and btrfs for
example if you care about commonly used local file systems.