* bytes.
  */
 static inline xfs_failaddr_t
-xfs_btree_check_lblock_siblings(
+xfs_btree_check_fsblock_siblings(
        struct xfs_mount        *mp,
        xfs_fsblock_t           fsb,
        __be64                  dsibling)
 }
 
 static inline xfs_failaddr_t
-xfs_btree_check_sblock_siblings(
+xfs_btree_check_agblock_siblings(
        struct xfs_perag        *pag,
        xfs_agblock_t           agbno,
        __be32                  dsibling)
  * or NULL if everything is ok.
  */
 static xfs_failaddr_t
-__xfs_btree_check_lblock(
+__xfs_btree_check_fsblock(
        struct xfs_btree_cur    *cur,
        struct xfs_btree_block  *block,
        int                     level,
        }
 
        fsb = XFS_DADDR_TO_FSB(mp, xfs_buf_daddr(bp));
-       fa = xfs_btree_check_lblock_siblings(mp, fsb, block->bb_u.l.bb_leftsib);
+       fa = xfs_btree_check_fsblock_siblings(mp, fsb,
+                       block->bb_u.l.bb_leftsib);
        if (!fa)
-               fa = xfs_btree_check_lblock_siblings(mp, fsb,
+               fa = xfs_btree_check_fsblock_siblings(mp, fsb,
                                block->bb_u.l.bb_rightsib);
        return fa;
 }
  * or NULL if everything is ok.
  */
 static xfs_failaddr_t
-__xfs_btree_check_sblock(
+__xfs_btree_check_agblock(
        struct xfs_btree_cur    *cur,
        struct xfs_btree_block  *block,
        int                     level,
                return __this_address;
 
        agbno = xfs_daddr_to_agbno(mp, xfs_buf_daddr(bp));
-       fa = xfs_btree_check_sblock_siblings(pag, agbno,
+       fa = xfs_btree_check_agblock_siblings(pag, agbno,
                        block->bb_u.s.bb_leftsib);
        if (!fa)
-               fa = xfs_btree_check_sblock_siblings(pag, agbno,
+               fa = xfs_btree_check_agblock_siblings(pag, agbno,
                                block->bb_u.s.bb_rightsib);
        return fa;
 }
        int                     level,
        struct xfs_buf          *bp)
 {
-       if (cur->bc_ops->ptr_len == XFS_BTREE_SHORT_PTR_LEN)
-               return __xfs_btree_check_sblock(cur, block, level, bp);
-       return __xfs_btree_check_lblock(cur, block, level, bp);
+       if (cur->bc_ops->type == XFS_BTREE_TYPE_AG)
+               return __xfs_btree_check_agblock(cur, block, level, bp);
+       return __xfs_btree_check_fsblock(cur, block, level, bp);
 }
 
 static inline unsigned int xfs_btree_block_errtag(struct xfs_btree_cur *cur)
        if (level <= 0)
                return -EFSCORRUPTED;
 
-       if (cur->bc_ops->ptr_len == XFS_BTREE_LONG_PTR_LEN) {
+       if (cur->bc_ops->type == XFS_BTREE_TYPE_INODE) {
                if (!xfs_verify_fsbno(cur->bc_mp,
                                be64_to_cpu((&ptr->l)[index])))
                        return -EFSCORRUPTED;
 
        error = __xfs_btree_check_ptr(cur, ptr, index, level);
        if (error) {
-               if (cur->bc_ops->ptr_len == XFS_BTREE_LONG_PTR_LEN) {
+               if (cur->bc_ops->type == XFS_BTREE_TYPE_INODE) {
                        xfs_err(cur->bc_mp,
 "Inode %llu fork %d: Corrupt %sbt pointer at level %d index %d.",
                                cur->bc_ino.ip->i_ino,
  * it to disk.
  */
 void
-xfs_btree_lblock_calc_crc(
+xfs_btree_fsblock_calc_crc(
        struct xfs_buf          *bp)
 {
        struct xfs_btree_block  *block = XFS_BUF_TO_BLOCK(bp);
 }
 
 bool
-xfs_btree_lblock_verify_crc(
+xfs_btree_fsblock_verify_crc(
        struct xfs_buf          *bp)
 {
        struct xfs_btree_block  *block = XFS_BUF_TO_BLOCK(bp);
  * it to disk.
  */
 void
-xfs_btree_sblock_calc_crc(
+xfs_btree_agblock_calc_crc(
        struct xfs_buf          *bp)
 {
        struct xfs_btree_block  *block = XFS_BUF_TO_BLOCK(bp);
 }
 
 bool
-xfs_btree_sblock_verify_crc(
+xfs_btree_agblock_verify_crc(
        struct xfs_buf          *bp)
 {
        struct xfs_btree_block  *block = XFS_BUF_TO_BLOCK(bp);
 }
 
 STATIC int
-xfs_btree_readahead_lblock(
+xfs_btree_readahead_fsblock(
        struct xfs_btree_cur    *cur,
        int                     lr,
        struct xfs_btree_block  *block)
 }
 
 STATIC int
-xfs_btree_readahead_sblock(
+xfs_btree_readahead_agblock(
        struct xfs_btree_cur    *cur,
        int                     lr,
        struct xfs_btree_block *block)
        block = XFS_BUF_TO_BLOCK(cur->bc_levels[lev].bp);
 
        if (cur->bc_ops->ptr_len == XFS_BTREE_LONG_PTR_LEN)
-               return xfs_btree_readahead_lblock(cur, lr, block);
-       return xfs_btree_readahead_sblock(cur, lr, block);
+               return xfs_btree_readahead_fsblock(cur, lr, block);
+       return xfs_btree_readahead_agblock(cur, lr, block);
 }
 
 STATIC int
 
 /* Verify the v5 fields of a long-format btree block. */
 xfs_failaddr_t
-xfs_btree_lblock_v5hdr_verify(
+xfs_btree_fsblock_v5hdr_verify(
        struct xfs_buf          *bp,
        uint64_t                owner)
 {
 
 /* Verify a long-format btree block. */
 xfs_failaddr_t
-xfs_btree_lblock_verify(
+xfs_btree_fsblock_verify(
        struct xfs_buf          *bp,
        unsigned int            max_recs)
 {
 
        /* sibling pointer verification */
        fsb = XFS_DADDR_TO_FSB(mp, xfs_buf_daddr(bp));
-       fa = xfs_btree_check_lblock_siblings(mp, fsb, block->bb_u.l.bb_leftsib);
+       fa = xfs_btree_check_fsblock_siblings(mp, fsb,
+                       block->bb_u.l.bb_leftsib);
        if (!fa)
-               fa = xfs_btree_check_lblock_siblings(mp, fsb,
+               fa = xfs_btree_check_fsblock_siblings(mp, fsb,
                                block->bb_u.l.bb_rightsib);
        return fa;
 }
 
 /**
- * xfs_btree_sblock_v5hdr_verify() -- verify the v5 fields of a short-format
+ * xfs_btree_agblock_v5hdr_verify() -- verify the v5 fields of a short-format
  *                                   btree block
  *
  * @bp: buffer containing the btree block
  */
 xfs_failaddr_t
-xfs_btree_sblock_v5hdr_verify(
+xfs_btree_agblock_v5hdr_verify(
        struct xfs_buf          *bp)
 {
        struct xfs_mount        *mp = bp->b_mount;
 }
 
 /**
- * xfs_btree_sblock_verify() -- verify a short-format btree block
+ * xfs_btree_agblock_verify() -- verify a short-format btree block
  *
  * @bp: buffer containing the btree block
  * @max_recs: maximum records allowed in this btree node
  */
 xfs_failaddr_t
-xfs_btree_sblock_verify(
+xfs_btree_agblock_verify(
        struct xfs_buf          *bp,
        unsigned int            max_recs)
 {
 
        /* sibling pointer verification */
        agbno = xfs_daddr_to_agbno(mp, xfs_buf_daddr(bp));
-       fa = xfs_btree_check_sblock_siblings(bp->b_pag, agbno,
+       fa = xfs_btree_check_agblock_siblings(bp->b_pag, agbno,
                        block->bb_u.s.bb_leftsib);
        if (!fa)
-               fa = xfs_btree_check_sblock_siblings(bp->b_pag, agbno,
+               fa = xfs_btree_check_agblock_siblings(bp->b_pag, agbno,
                                block->bb_u.s.bb_rightsib);
        return fa;
 }
 
 /*
  * btree block CRC helpers
  */
-void xfs_btree_lblock_calc_crc(struct xfs_buf *);
-bool xfs_btree_lblock_verify_crc(struct xfs_buf *);
-void xfs_btree_sblock_calc_crc(struct xfs_buf *);
-bool xfs_btree_sblock_verify_crc(struct xfs_buf *);
+void xfs_btree_fsblock_calc_crc(struct xfs_buf *);
+bool xfs_btree_fsblock_verify_crc(struct xfs_buf *);
+void xfs_btree_agblock_calc_crc(struct xfs_buf *);
+bool xfs_btree_agblock_verify_crc(struct xfs_buf *);
 
 /*
  * Internal btree helpers also used by xfs_bmap.c.
 #define        XFS_FILBLKS_MIN(a,b)    min_t(xfs_filblks_t, (a), (b))
 #define        XFS_FILBLKS_MAX(a,b)    max_t(xfs_filblks_t, (a), (b))
 
-xfs_failaddr_t xfs_btree_sblock_v5hdr_verify(struct xfs_buf *bp);
-xfs_failaddr_t xfs_btree_sblock_verify(struct xfs_buf *bp,
+xfs_failaddr_t xfs_btree_agblock_v5hdr_verify(struct xfs_buf *bp);
+xfs_failaddr_t xfs_btree_agblock_verify(struct xfs_buf *bp,
                unsigned int max_recs);
-xfs_failaddr_t xfs_btree_lblock_v5hdr_verify(struct xfs_buf *bp,
+xfs_failaddr_t xfs_btree_fsblock_v5hdr_verify(struct xfs_buf *bp,
                uint64_t owner);
-xfs_failaddr_t xfs_btree_lblock_verify(struct xfs_buf *bp,
+xfs_failaddr_t xfs_btree_fsblock_verify(struct xfs_buf *bp,
                unsigned int max_recs);
 
 unsigned int xfs_btree_compute_maxlevels(const unsigned int *limits,