return cur;
 }
+
+/*
+ * Calculate number of records in an alloc btree block.
+ */
+int
+xfs_allocbt_maxrecs(
+       struct xfs_mount        *mp,
+       int                     blocklen,
+       int                     leaf)
+{
+       blocklen -= sizeof(struct xfs_btree_sblock);
+
+       if (leaf)
+               return blocklen / sizeof(xfs_alloc_rec_t);
+       return blocklen / (sizeof(xfs_alloc_key_t) + sizeof(xfs_alloc_ptr_t));
+}
 
 
 #define        XFS_BUF_TO_ALLOC_BLOCK(bp)      ((xfs_alloc_block_t *)XFS_BUF_PTR(bp))
 
-/*
- * Real block structures have a size equal to the disk block size.
- */
-#define        XFS_ALLOC_BLOCK_MAXRECS(lev,cur) ((cur)->bc_mp->m_alloc_mxr[lev != 0])
-#define        XFS_ALLOC_BLOCK_MINRECS(lev,cur) ((cur)->bc_mp->m_alloc_mnr[lev != 0])
-
 /*
  * Minimum and maximum blocksize and sectorsize.
  * The blocksize upper limit is pretty much arbitrary.
 extern struct xfs_btree_cur *xfs_allocbt_init_cursor(struct xfs_mount *,
                struct xfs_trans *, struct xfs_buf *,
                xfs_agnumber_t, xfs_btnum_t);
+extern int xfs_allocbt_maxrecs(struct xfs_mount *, int, int);
 
 #endif /* __XFS_ALLOC_BTREE_H__ */
 
        __be64                  *pp;    /* ptr to block address */
        xfs_bmbt_block_t        *rblock;/* root btree block */
 
+       mp = ip->i_mount;
        ifp = XFS_IFORK_PTR(ip, whichfork);
        ASSERT(ifp->if_flags & XFS_IFEXTENTS);
        ASSERT(XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_BTREE);
        rblock = ifp->if_broot;
        ASSERT(be16_to_cpu(rblock->bb_level) == 1);
        ASSERT(be16_to_cpu(rblock->bb_numrecs) == 1);
-       ASSERT(XFS_BMAP_BROOT_MAXRECS(ifp->if_broot_bytes) == 1);
-       mp = ip->i_mount;
-       pp = XFS_BMAP_BROOT_PTR_ADDR(rblock, 1, ifp->if_broot_bytes);
+       ASSERT(xfs_bmbt_maxrecs(mp, ifp->if_broot_bytes, 0) == 1);
+       pp = XFS_BMAP_BROOT_PTR_ADDR(mp, rblock, 1, ifp->if_broot_bytes);
        cbno = be64_to_cpu(*pp);
        *logflagsp = 0;
 #ifdef DEBUG
                maxleafents = MAXAEXTNUM;
                sz = XFS_BMDR_SPACE_CALC(MINABTPTRS);
        }
-       maxrootrecs = (int)XFS_BTREE_BLOCK_MAXRECS(sz, xfs_bmdr, 0);
+       maxrootrecs = xfs_bmdr_maxrecs(mp, sz, 0);
        minleafrecs = mp->m_bmap_dmnr[0];
        minnoderecs = mp->m_bmap_dmnr[1];
        maxblocks = (maxleafents + minleafrecs - 1) / minleafrecs;
         */
        level = be16_to_cpu(block->bb_level);
        ASSERT(level > 0);
-       pp = XFS_BMAP_BROOT_PTR_ADDR(block, 1, ifp->if_broot_bytes);
+       pp = XFS_BMAP_BROOT_PTR_ADDR(mp, block, 1, ifp->if_broot_bytes);
        bno = be64_to_cpu(*pp);
        ASSERT(bno != NULLDFSBNO);
        ASSERT(XFS_FSB_TO_AGNO(mp, bno) < mp->m_sb.sb_agcount);
                 */
 
                if (root) {
-                       pp = XFS_BMAP_BROOT_PTR_ADDR(block, i, sz);
+                       pp = XFS_BMAP_BROOT_PTR_ADDR(mp, block, i, sz);
                } else {
                        pp = XFS_BTREE_PTR_ADDR(xfs_bmbt, block, i, dmxr);
                }
                for (j = i+1; j <= be16_to_cpu(block->bb_numrecs); j++) {
                        if (root) {
-                               thispa = XFS_BMAP_BROOT_PTR_ADDR(block, j, sz);
+                               thispa = XFS_BMAP_BROOT_PTR_ADDR(mp, block, j, sz);
                        } else {
                                thispa = XFS_BTREE_PTR_ADDR(xfs_bmbt, block, j,
                                                            dmxr);
        level = be16_to_cpu(block->bb_level);
        ASSERT(level > 0);
        xfs_check_block(block, mp, 1, ifp->if_broot_bytes);
-       pp = XFS_BMAP_BROOT_PTR_ADDR(block, 1, ifp->if_broot_bytes);
+       pp = XFS_BMAP_BROOT_PTR_ADDR(mp, block, 1, ifp->if_broot_bytes);
        bno = be64_to_cpu(*pp);
 
        ASSERT(bno != NULLDFSBNO);
        block = ifp->if_broot;
        level = be16_to_cpu(block->bb_level);
        ASSERT(level > 0);
-       pp = XFS_BMAP_BROOT_PTR_ADDR(block, 1, ifp->if_broot_bytes);
+       pp = XFS_BMAP_BROOT_PTR_ADDR(mp, block, 1, ifp->if_broot_bytes);
        bno = be64_to_cpu(*pp);
        ASSERT(bno != NULLDFSBNO);
        ASSERT(XFS_FSB_TO_AGNO(mp, bno) < mp->m_sb.sb_agcount);
 
  */
 void
 xfs_bmdr_to_bmbt(
+       struct xfs_mount        *mp,
        xfs_bmdr_block_t        *dblock,
        int                     dblocklen,
        xfs_bmbt_block_t        *rblock,
        rblock->bb_numrecs = dblock->bb_numrecs;
        rblock->bb_leftsib = cpu_to_be64(NULLDFSBNO);
        rblock->bb_rightsib = cpu_to_be64(NULLDFSBNO);
-       dmxr = (int)XFS_BTREE_BLOCK_MAXRECS(dblocklen, xfs_bmdr, 0);
+       dmxr = xfs_bmdr_maxrecs(mp, dblocklen, 0);
        fkp = XFS_BTREE_KEY_ADDR(xfs_bmdr, dblock, 1);
        tkp = XFS_BMAP_BROOT_KEY_ADDR(rblock, 1, rblocklen);
        fpp = XFS_BTREE_PTR_ADDR(xfs_bmdr, dblock, 1, dmxr);
-       tpp = XFS_BMAP_BROOT_PTR_ADDR(rblock, 1, rblocklen);
+       tpp = XFS_BMAP_BROOT_PTR_ADDR(mp, rblock, 1, rblocklen);
        dmxr = be16_to_cpu(dblock->bb_numrecs);
        memcpy(tkp, fkp, sizeof(*fkp) * dmxr);
        memcpy(tpp, fpp, sizeof(*fpp) * dmxr);
  */
 void
 xfs_bmbt_to_bmdr(
+       struct xfs_mount        *mp,
        xfs_bmbt_block_t        *rblock,
        int                     rblocklen,
        xfs_bmdr_block_t        *dblock,
        ASSERT(be16_to_cpu(rblock->bb_level) > 0);
        dblock->bb_level = rblock->bb_level;
        dblock->bb_numrecs = rblock->bb_numrecs;
-       dmxr = (int)XFS_BTREE_BLOCK_MAXRECS(dblocklen, xfs_bmdr, 0);
+       dmxr = xfs_bmdr_maxrecs(mp, dblocklen, 0);
        fkp = XFS_BMAP_BROOT_KEY_ADDR(rblock, 1, rblocklen);
        tkp = XFS_BTREE_KEY_ADDR(xfs_bmdr, dblock, 1);
-       fpp = XFS_BMAP_BROOT_PTR_ADDR(rblock, 1, rblocklen);
+       fpp = XFS_BMAP_BROOT_PTR_ADDR(mp, rblock, 1, rblocklen);
        tpp = XFS_BTREE_PTR_ADDR(xfs_bmdr, dblock, 1, dmxr);
        dmxr = be16_to_cpu(dblock->bb_numrecs);
        memcpy(tkp, fkp, sizeof(*fkp) * dmxr);
        struct xfs_btree_cur    *cur,
        int                     level)
 {
-       return XFS_BMAP_BLOCK_IMINRECS(level, cur);
+       if (level == cur->bc_nlevels - 1) {
+               struct xfs_ifork        *ifp;
+
+               ifp = XFS_IFORK_PTR(cur->bc_private.b.ip,
+                                   cur->bc_private.b.whichfork);
+
+               return xfs_bmbt_maxrecs(cur->bc_mp,
+                                       ifp->if_broot_bytes, level == 0) / 2;
+       }
+
+       return cur->bc_mp->m_bmap_dmnr[level != 0];
 }
 
-STATIC int
+int
 xfs_bmbt_get_maxrecs(
        struct xfs_btree_cur    *cur,
        int                     level)
 {
-       return XFS_BMAP_BLOCK_IMAXRECS(level, cur);
+       if (level == cur->bc_nlevels - 1) {
+               struct xfs_ifork        *ifp;
+
+               ifp = XFS_IFORK_PTR(cur->bc_private.b.ip,
+                                   cur->bc_private.b.whichfork);
+
+               return xfs_bmbt_maxrecs(cur->bc_mp,
+                                       ifp->if_broot_bytes, level == 0);
+       }
+
+       return cur->bc_mp->m_bmap_dmxr[level != 0];
+
 }
 
 /*
        struct xfs_btree_cur    *cur,
        int                     level)
 {
-       return XFS_BMAP_BLOCK_DMAXRECS(level, cur);
+       if (level != cur->bc_nlevels - 1)
+               return cur->bc_mp->m_bmap_dmxr[level != 0];
+       return xfs_bmdr_maxrecs(cur->bc_mp, cur->bc_private.b.forksize,
+                               level == 0);
 }
 
 STATIC void
 
        return cur;
 }
+
+/*
+ * Calculate number of records in a bmap btree block.
+ */
+int
+xfs_bmbt_maxrecs(
+       struct xfs_mount        *mp,
+       int                     blocklen,
+       int                     leaf)
+{
+       blocklen -= sizeof(struct xfs_btree_lblock);
+
+       if (leaf)
+               return blocklen / sizeof(xfs_bmbt_rec_t);
+       return blocklen / (sizeof(xfs_bmbt_key_t) + sizeof(xfs_bmbt_ptr_t));
+}
+
+/*
+ * Calculate number of records in a bmap btree inode root.
+ */
+int
+xfs_bmdr_maxrecs(
+       struct xfs_mount        *mp,
+       int                     blocklen,
+       int                     leaf)
+{
+       blocklen -= sizeof(xfs_bmdr_block_t);
+
+       if (leaf)
+               return blocklen / sizeof(xfs_bmdr_rec_t);
+       return blocklen / (sizeof(xfs_bmdr_key_t) + sizeof(xfs_bmdr_ptr_t));
+}
 
 
 #define XFS_BUF_TO_BMBT_BLOCK(bp)      ((xfs_bmbt_block_t *)XFS_BUF_PTR(bp))
 
-#define XFS_BMAP_RBLOCK_DSIZE(lev,cur) ((cur)->bc_private.b.forksize)
-#define XFS_BMAP_RBLOCK_ISIZE(lev,cur) \
-       ((int)XFS_IFORK_PTR((cur)->bc_private.b.ip, \
-                   (cur)->bc_private.b.whichfork)->if_broot_bytes)
-
-#define XFS_BMAP_BLOCK_DMAXRECS(lev,cur) \
-       (((lev) == (cur)->bc_nlevels - 1 ? \
-               XFS_BTREE_BLOCK_MAXRECS(XFS_BMAP_RBLOCK_DSIZE(lev,cur), \
-                       xfs_bmdr, (lev) == 0) : \
-               ((cur)->bc_mp->m_bmap_dmxr[(lev) != 0])))
-#define XFS_BMAP_BLOCK_IMAXRECS(lev,cur) \
-       (((lev) == (cur)->bc_nlevels - 1 ? \
-                       XFS_BTREE_BLOCK_MAXRECS(XFS_BMAP_RBLOCK_ISIZE(lev,cur),\
-                               xfs_bmbt, (lev) == 0) : \
-                       ((cur)->bc_mp->m_bmap_dmxr[(lev) != 0])))
-
-#define XFS_BMAP_BLOCK_DMINRECS(lev,cur) \
-       (((lev) == (cur)->bc_nlevels - 1 ? \
-                       XFS_BTREE_BLOCK_MINRECS(XFS_BMAP_RBLOCK_DSIZE(lev,cur),\
-                               xfs_bmdr, (lev) == 0) : \
-                       ((cur)->bc_mp->m_bmap_dmnr[(lev) != 0])))
-#define XFS_BMAP_BLOCK_IMINRECS(lev,cur) \
-       (((lev) == (cur)->bc_nlevels - 1 ? \
-                       XFS_BTREE_BLOCK_MINRECS(XFS_BMAP_RBLOCK_ISIZE(lev,cur),\
-                               xfs_bmbt, (lev) == 0) : \
-                       ((cur)->bc_mp->m_bmap_dmnr[(lev) != 0])))
-
 #define XFS_BMAP_REC_DADDR(bb,i,cur)   (XFS_BTREE_REC_ADDR(xfs_bmbt, bb, i))
 
 #define XFS_BMAP_REC_IADDR(bb,i,cur)   (XFS_BTREE_REC_ADDR(xfs_bmbt, bb, i))
        (XFS_BTREE_PTR_ADDR(xfs_bmbt, bb, i, XFS_BMAP_BLOCK_DMAXRECS(   \
                                be16_to_cpu((bb)->bb_level), cur)))
 #define XFS_BMAP_PTR_IADDR(bb,i,cur)   \
-       (XFS_BTREE_PTR_ADDR(xfs_bmbt, bb, i, XFS_BMAP_BLOCK_IMAXRECS(   \
-                               be16_to_cpu((bb)->bb_level), cur)))
+       (XFS_BTREE_PTR_ADDR(xfs_bmbt, bb, i, xfs_bmbt_get_maxrecs(cur,  \
+                               be16_to_cpu((bb)->bb_level))))
 
 /*
  * These are to be used when we know the size of the block and
        (XFS_BTREE_REC_ADDR(xfs_bmbt,bb,i))
 #define XFS_BMAP_BROOT_KEY_ADDR(bb,i,sz) \
        (XFS_BTREE_KEY_ADDR(xfs_bmbt,bb,i))
-#define XFS_BMAP_BROOT_PTR_ADDR(bb,i,sz) \
-       (XFS_BTREE_PTR_ADDR(xfs_bmbt,bb,i,XFS_BMAP_BROOT_MAXRECS(sz)))
-
-#define XFS_BMAP_BROOT_NUMRECS(bb)     be16_to_cpu((bb)->bb_numrecs)
-#define XFS_BMAP_BROOT_MAXRECS(sz)     XFS_BTREE_BLOCK_MAXRECS(sz,xfs_bmbt,0)
+#define XFS_BMAP_BROOT_PTR_ADDR(mp, bb,i,sz) \
+       (XFS_BTREE_PTR_ADDR(xfs_bmbt,bb,i,xfs_bmbt_maxrecs(mp, sz, 0)))
 
 #define XFS_BMAP_BROOT_SPACE_CALC(nrecs) \
        (int)(sizeof(xfs_bmbt_block_t) + \
 /*
  * Prototypes for xfs_bmap.c to call.
  */
-extern void xfs_bmdr_to_bmbt(xfs_bmdr_block_t *, int, xfs_bmbt_block_t *, int);
+extern void xfs_bmdr_to_bmbt(struct xfs_mount *, xfs_bmdr_block_t *, int,
+                       xfs_bmbt_block_t *, int);
 extern void xfs_bmbt_get_all(xfs_bmbt_rec_host_t *r, xfs_bmbt_irec_t *s);
 extern xfs_filblks_t xfs_bmbt_get_blockcount(xfs_bmbt_rec_host_t *r);
 extern xfs_fsblock_t xfs_bmbt_get_startblock(xfs_bmbt_rec_host_t *r);
 extern void xfs_bmbt_disk_set_allf(xfs_bmbt_rec_t *r, xfs_fileoff_t o,
                        xfs_fsblock_t b, xfs_filblks_t c, xfs_exntst_t v);
 
-extern void xfs_bmbt_to_bmdr(xfs_bmbt_block_t *, int, xfs_bmdr_block_t *, int);
+extern void xfs_bmbt_to_bmdr(struct xfs_mount *, xfs_bmbt_block_t *, int,
+                       xfs_bmdr_block_t *, int);
+
+extern int xfs_bmbt_get_maxrecs(struct xfs_btree_cur *, int level);
+extern int xfs_bmdr_maxrecs(struct xfs_mount *, int blocklen, int leaf);
+extern int xfs_bmbt_maxrecs(struct xfs_mount *, int blocklen, int leaf);
 
 extern struct xfs_btree_cur *xfs_bmbt_init_cursor(struct xfs_mount *,
                struct xfs_trans *, struct xfs_inode *, int);
 
        case XFS_BTNUM_MAX: ASSERT(0); /* fucking gcc */ ; break;       \
        }       \
 } while (0)
-/*
- * Maximum and minimum records in a btree block.
- * Given block size, type prefix, and leaf flag (0 or 1).
- * The divisor below is equivalent to lf ? (e1) : (e2) but that produces
- * compiler warnings.
- */
-#define        XFS_BTREE_BLOCK_MAXRECS(bsz,t,lf)       \
-       ((int)(((bsz) - (uint)sizeof(t ## _block_t)) / \
-        (((lf) * (uint)sizeof(t ## _rec_t)) + \
-         ((1 - (lf)) * \
-          ((uint)sizeof(t ## _key_t) + (uint)sizeof(t ## _ptr_t))))))
-#define        XFS_BTREE_BLOCK_MINRECS(bsz,t,lf)       \
-       (XFS_BTREE_BLOCK_MAXRECS(bsz,t,lf) / 2)
 
 /*
  * Record, key, and pointer address calculation macros.
 
        xfs_dinode_core_t       di_core;
        /*
         * In adding anything between the core and the union, be
-        * sure to update the macros like XFS_LITINO below and
-        * XFS_BMAP_RBLOCK_DSIZE in xfs_bmap_btree.h.
+        * sure to update the macros like XFS_LITINO below.
         */
        __be32                  di_next_unlinked;/* agi unlinked list ptr */
        union {
 
 
        return cur;
 }
+
+/*
+ * Calculate number of records in an inobt btree block.
+ */
+int
+xfs_inobt_maxrecs(
+       struct xfs_mount        *mp,
+       int                     blocklen,
+       int                     leaf)
+{
+       blocklen -= sizeof(struct xfs_btree_sblock);
+
+       if (leaf)
+               return blocklen / sizeof(xfs_inobt_rec_t);
+       return blocklen / (sizeof(xfs_inobt_key_t) + sizeof(xfs_inobt_ptr_t));
+}
 
 #define        XFS_INOBT_SET_FREE(rp,i)        ((rp)->ir_free |= XFS_INOBT_MASK(i))
 #define        XFS_INOBT_CLR_FREE(rp,i)        ((rp)->ir_free &= ~XFS_INOBT_MASK(i))
 
-/*
- * Real block structures have a size equal to the disk block size.
- */
-#define        XFS_INOBT_BLOCK_MAXRECS(lev,cur) ((cur)->bc_mp->m_inobt_mxr[lev != 0])
-#define        XFS_INOBT_BLOCK_MINRECS(lev,cur) ((cur)->bc_mp->m_inobt_mnr[lev != 0])
-#define        XFS_INOBT_IS_LAST_REC(cur)      \
-       ((cur)->bc_ptrs[0] == be16_to_cpu(XFS_BUF_TO_INOBT_BLOCK((cur)->bc_bufs[0])->bb_numrecs))
-
 /*
  * Maximum number of inode btree levels.
  */
 
 extern struct xfs_btree_cur *xfs_inobt_init_cursor(struct xfs_mount *,
                struct xfs_trans *, struct xfs_buf *, xfs_agnumber_t);
+extern int xfs_inobt_maxrecs(struct xfs_mount *, int, int);
 
 #endif /* __XFS_IALLOC_BTREE_H__ */
 
        ifp = XFS_IFORK_PTR(ip, whichfork);
        dfp = (xfs_bmdr_block_t *)XFS_DFORK_PTR(dip, whichfork);
        size = XFS_BMAP_BROOT_SPACE(dfp);
-       nrecs = XFS_BMAP_BROOT_NUMRECS(dfp);
+       nrecs = be16_to_cpu(dfp->bb_numrecs);
 
        /*
         * blow out if -- fork has less extents than can fit in
         * Copy and convert from the on-disk structure
         * to the in-memory structure.
         */
-       xfs_bmdr_to_bmbt(dfp, XFS_DFORK_SIZE(dip, ip->i_mount, whichfork),
-               ifp->if_broot, size);
+       xfs_bmdr_to_bmbt(ip->i_mount, dfp,
+                        XFS_DFORK_SIZE(dip, ip->i_mount, whichfork),
+                        ifp->if_broot, size);
        ifp->if_flags &= ~XFS_IFEXTENTS;
        ifp->if_flags |= XFS_IFBROOT;
 
        int                     rec_diff,
        int                     whichfork)
 {
+       struct xfs_mount        *mp = ip->i_mount;
        int                     cur_max;
        xfs_ifork_t             *ifp;
        xfs_bmbt_block_t        *new_broot;
                 * location.  The records don't change location because
                 * they are kept butted up against the btree block header.
                 */
-               cur_max = XFS_BMAP_BROOT_MAXRECS(ifp->if_broot_bytes);
+               cur_max = xfs_bmbt_maxrecs(mp, ifp->if_broot_bytes, 0);
                new_max = cur_max + rec_diff;
                new_size = (size_t)XFS_BMAP_BROOT_SPACE_CALC(new_max);
                ifp->if_broot = (xfs_bmbt_block_t *)
                                new_size,
                                (size_t)XFS_BMAP_BROOT_SPACE_CALC(cur_max), /* old size */
                                KM_SLEEP);
-               op = (char *)XFS_BMAP_BROOT_PTR_ADDR(ifp->if_broot, 1,
-                                                     ifp->if_broot_bytes);
-               np = (char *)XFS_BMAP_BROOT_PTR_ADDR(ifp->if_broot, 1,
-                                                     (int)new_size);
+               op = (char *)XFS_BMAP_BROOT_PTR_ADDR(mp, ifp->if_broot, 1,
+                                                    ifp->if_broot_bytes);
+               np = (char *)XFS_BMAP_BROOT_PTR_ADDR(mp, ifp->if_broot, 1,
+                                                    (int)new_size);
                ifp->if_broot_bytes = (int)new_size;
                ASSERT(ifp->if_broot_bytes <=
                        XFS_IFORK_SIZE(ip, whichfork) + XFS_BROOT_SIZE_ADJ);
         * records, just get rid of the root and clear the status bit.
         */
        ASSERT((ifp->if_broot != NULL) && (ifp->if_broot_bytes > 0));
-       cur_max = XFS_BMAP_BROOT_MAXRECS(ifp->if_broot_bytes);
+       cur_max = xfs_bmbt_maxrecs(mp, ifp->if_broot_bytes, 0);
        new_max = cur_max + rec_diff;
        ASSERT(new_max >= 0);
        if (new_max > 0)
                /*
                 * Then copy the pointers.
                 */
-               op = (char *)XFS_BMAP_BROOT_PTR_ADDR(ifp->if_broot, 1,
+               op = (char *)XFS_BMAP_BROOT_PTR_ADDR(mp, ifp->if_broot, 1,
                                                     ifp->if_broot_bytes);
-               np = (char *)XFS_BMAP_BROOT_PTR_ADDR(new_broot, 1,
+               np = (char *)XFS_BMAP_BROOT_PTR_ADDR(mp, new_broot, 1,
                                                     (int)new_size);
                memcpy(np, op, new_max * (uint)sizeof(xfs_dfsbno_t));
        }
                        ASSERT(ifp->if_broot_bytes <=
                               (XFS_IFORK_SIZE(ip, whichfork) +
                                XFS_BROOT_SIZE_ADJ));
-                       xfs_bmbt_to_bmdr(ifp->if_broot, ifp->if_broot_bytes,
+                       xfs_bmbt_to_bmdr(mp, ifp->if_broot, ifp->if_broot_bytes,
                                (xfs_bmdr_block_t *)cp,
                                XFS_DFORK_SIZE(dip, mp, whichfork));
                }
 
                break;
 
        case XFS_ILOG_DBROOT:
-               xfs_bmbt_to_bmdr((xfs_bmbt_block_t *)src, len,
+               xfs_bmbt_to_bmdr(mp, (xfs_bmbt_block_t *)src, len,
                                 &(dip->di_u.di_bmbt),
                                 XFS_DFORK_DSIZE(dip, mp));
                break;
 
                case XFS_ILOG_ABROOT:
                        dest = XFS_DFORK_APTR(dip);
-                       xfs_bmbt_to_bmdr((xfs_bmbt_block_t *)src, len,
+                       xfs_bmbt_to_bmdr(mp, (xfs_bmbt_block_t *)src, len,
                                         (xfs_bmdr_block_t*)dest,
                                         XFS_DFORK_ASIZE(dip, mp));
                        break;
 
 STATIC void
 xfs_mount_common(xfs_mount_t *mp, xfs_sb_t *sbp)
 {
-       int     i;
-
        mp->m_agfrotor = mp->m_agirotor = 0;
        spin_lock_init(&mp->m_agirotor_lock);
        mp->m_maxagi = mp->m_sb.sb_agcount;
        }
        ASSERT(mp->m_attroffset < XFS_LITINO(mp));
 
-       for (i = 0; i < 2; i++) {
-               mp->m_alloc_mxr[i] = XFS_BTREE_BLOCK_MAXRECS(sbp->sb_blocksize,
-                       xfs_alloc, i == 0);
-               mp->m_alloc_mnr[i] = XFS_BTREE_BLOCK_MINRECS(sbp->sb_blocksize,
-                       xfs_alloc, i == 0);
-       }
-       for (i = 0; i < 2; i++) {
-               mp->m_bmap_dmxr[i] = XFS_BTREE_BLOCK_MAXRECS(sbp->sb_blocksize,
-                       xfs_bmbt, i == 0);
-               mp->m_bmap_dmnr[i] = XFS_BTREE_BLOCK_MINRECS(sbp->sb_blocksize,
-                       xfs_bmbt, i == 0);
-       }
-       for (i = 0; i < 2; i++) {
-               mp->m_inobt_mxr[i] = XFS_BTREE_BLOCK_MAXRECS(sbp->sb_blocksize,
-                       xfs_inobt, i == 0);
-               mp->m_inobt_mnr[i] = XFS_BTREE_BLOCK_MINRECS(sbp->sb_blocksize,
-                       xfs_inobt, i == 0);
-       }
+       mp->m_alloc_mxr[0] = xfs_allocbt_maxrecs(mp, sbp->sb_blocksize, 1);
+       mp->m_alloc_mxr[1] = xfs_allocbt_maxrecs(mp, sbp->sb_blocksize, 0);
+       mp->m_alloc_mnr[0] = mp->m_alloc_mxr[0] / 2;
+       mp->m_alloc_mnr[1] = mp->m_alloc_mxr[1] / 2;
+
+       mp->m_inobt_mxr[0] = xfs_inobt_maxrecs(mp, sbp->sb_blocksize, 1);
+       mp->m_inobt_mxr[1] = xfs_inobt_maxrecs(mp, sbp->sb_blocksize, 0);
+       mp->m_inobt_mnr[0] = mp->m_inobt_mxr[0] / 2;
+       mp->m_inobt_mnr[1] = mp->m_inobt_mxr[1] / 2;
+
+       mp->m_bmap_dmxr[0] = xfs_bmbt_maxrecs(mp, sbp->sb_blocksize, 1);
+       mp->m_bmap_dmxr[1] = xfs_bmbt_maxrecs(mp, sbp->sb_blocksize, 0);
+       mp->m_bmap_dmnr[0] = mp->m_bmap_dmxr[0] / 2;
+       mp->m_bmap_dmnr[1] = mp->m_bmap_dmxr[1] / 2;
 
        mp->m_bsize = XFS_FSB_TO_BB(mp, 1);
        mp->m_ialloc_inos = (int)MAX((__uint16_t)XFS_INODES_PER_CHUNK,
 
        uint                    m_blockmask;    /* sb_blocksize-1 */
        uint                    m_blockwsize;   /* sb_blocksize in words */
        uint                    m_blockwmask;   /* blockwsize-1 */
-       uint                    m_alloc_mxr[2]; /* XFS_ALLOC_BLOCK_MAXRECS */
-       uint                    m_alloc_mnr[2]; /* XFS_ALLOC_BLOCK_MINRECS */
-       uint                    m_bmap_dmxr[2]; /* XFS_BMAP_BLOCK_DMAXRECS */
-       uint                    m_bmap_dmnr[2]; /* XFS_BMAP_BLOCK_DMINRECS */
-       uint                    m_inobt_mxr[2]; /* XFS_INOBT_BLOCK_MAXRECS */
-       uint                    m_inobt_mnr[2]; /* XFS_INOBT_BLOCK_MINRECS */
+       uint                    m_alloc_mxr[2]; /* max alloc btree records */
+       uint                    m_alloc_mnr[2]; /* min alloc btree records */
+       uint                    m_bmap_dmxr[2]; /* max bmap btree records */
+       uint                    m_bmap_dmnr[2]; /* min bmap btree records */
+       uint                    m_inobt_mxr[2]; /* max inobt btree records */
+       uint                    m_inobt_mnr[2]; /* min inobt btree records */
        uint                    m_ag_maxlevels; /* XFS_AG_MAXLEVELS */
        uint                    m_bm_maxlevels[2]; /* XFS_BM_MAXLEVELS */
        uint                    m_in_maxlevels; /* XFS_IN_MAXLEVELS */