struct nameidata {
  struct dentry   *dentry;
  struct vfsmount *mnt;
  struct qstr     last;
  unsigned int    flags;
  int             last_type;
  unsigned        depth;
  char *saved_names[MAX_NESTED_LINKS + 1];

  /* Intent data */
  union {
          struct open_intent open;
  } intent;
};