Cleanup of adfs headers

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

fs/adfs/adfs.h

@@ -1,3 +1,6 @@
+#include <linux/fs.h>
+#include <linux/adfs_fs.h>
+
 /* Internal data structures for ADFS */
 
 #define ADFS_FREE_FRAG		 0
@@ -16,6 +19,58 @@
 
 struct buffer_head;
 
+/*
+ * adfs file system inode data in memory
+ */
+struct adfs_inode_info {
+	loff_t		mmu_private;
+	unsigned long	parent_id;	/* object id of parent		*/
+	__u32		loadaddr;	/* RISC OS load address		*/
+	__u32		execaddr;	/* RISC OS exec address		*/
+	unsigned int	filetype;	/* RISC OS file type		*/
+	unsigned int	attr;		/* RISC OS permissions		*/
+	unsigned int	stamped:1;	/* RISC OS file has date/time	*/
+	struct inode vfs_inode;
+};
+
+/*
+ * Forward-declare this
+ */
+struct adfs_discmap;
+struct adfs_dir_ops;
+
+/*
+ * ADFS file system superblock data in memory
+ */
+struct adfs_sb_info {
+	struct adfs_discmap *s_map;	/* bh list containing map		 */
+	struct adfs_dir_ops *s_dir;	/* directory operations			 */
+
+	uid_t		s_uid;		/* owner uid				 */
+	gid_t		s_gid;		/* owner gid				 */
+	umode_t		s_owner_mask;	/* ADFS owner perm -> unix perm		 */
+	umode_t		s_other_mask;	/* ADFS other perm -> unix perm		 */
+
+	__u32		s_ids_per_zone;	/* max. no ids in one zone		 */
+	__u32		s_idlen;	/* length of ID in map			 */
+	__u32		s_map_size;	/* sector size of a map			 */
+	unsigned long	s_size;		/* total size (in blocks) of this fs	 */
+	signed int	s_map2blk;	/* shift left by this for map->sector	 */
+	unsigned int	s_log2sharesize;/* log2 share size			 */
+	__le32		s_version;	/* disc format version			 */
+	unsigned int	s_namelen;	/* maximum number of characters in name	 */
+};
+
+static inline struct adfs_sb_info *ADFS_SB(struct super_block *sb)
+{
+	return sb->s_fs_info;
+}
+
+static inline struct adfs_inode_info *ADFS_I(struct inode *inode)
+{
+	return container_of(inode, struct adfs_inode_info, vfs_inode);
+}
+
 /*
  * Directory handling
  */