5.3.2.1.15. File System Type Structure
struct file_system_type {
  const char *name;
  int fs_flags;

  struct super_block *(*get_sb) (
    struct file_system_type *, int, const char *, void *);
  void (*kill_sb) (struct super_block *);

  struct module *owner;
  struct file_system_type * next;
  struct list_head fs_supers;
};