int (*get_xip_mem)(struct address_space *, pgoff_t, int,
void **, unsigned long *);
/*
- * migrate the contents of a page to the specified target. If sync
- * is false, it must not block.
+ * migrate the contents of a page to the specified target. If
+ * migrate_mode is MIGRATE_ASYNC, it must not block.
*/
int (*migratepage) (struct address_space *,
struct page *, struct page *, enum migrate_mode);
extern int freeze_super(struct super_block *super);
extern int thaw_super(struct super_block *super);
extern bool our_mnt(struct vfsmount *mnt);
+extern bool fs_fully_visible(struct file_system_type *);
extern int current_umask(void);