That doesn't look right to me. diskfs_shortcut_symlink means that the filesystem implementation has its own way to store symlinks. A Hurd filesystem supports symlinks either if there is a first-class storage mechanism like that, or if the filesystems supports storing passive translator records generally.
- [PATCH] diskfs/pathconf: handle _PC_2_SYMLINKS Pino Toscano
- Re: [PATCH] diskfs/pathconf: handle _PC_2_SYMLINKS Samuel Thibault
- Re: [PATCH] diskfs/pathconf: handle _PC_2_SYMLINKS Roland McGrath
- Re: [PATCH] diskfs/pathconf: handle _PC_2_SYMLINK... Pino Toscano