struct xfs_mount        *mp = ip->i_mount;
        struct xfs_ifork        *ifp;
        struct xfs_bmbt_irec    got;
-       struct xfs_bmbt_irec    prev;
        xfs_fileoff_t           obno;
        xfs_fileoff_t           end;
-       xfs_extnum_t            lastx;
+       xfs_extnum_t            idx;
        int                     error;
-       int                     eof;
+       bool                    eof = false;
        int                     n = 0;
        int                     whichfork = xfs_bmapi_whichfork(flags);
 
                        return error;
        }
 
-       xfs_bmap_search_extents(ip, bno, whichfork, &eof, &lastx, &got, &prev);
+       if (!xfs_iext_lookup_extent(ip, ifp, bno, &idx, &got))
+               eof = true;
        end = bno + len;
        obno = bno;
 
                        break;
 
                /* Else go on to the next record. */
-               if (++lastx < xfs_iext_count(ifp))
-                       xfs_bmbt_get_all(xfs_iext_get_ext(ifp, lastx), &got);
-               else
-                       eof = 1;
+               if (!xfs_iext_get_extent(ifp, ++idx, &got))
+                       eof = true;
        }
        *nmap = n;
        return 0;