HFS_MDB_BLK        15 fs/hfs/hfs.h   #define HFS_MDB_BLK		2 /* Block (w/i partition) of MDB */
HFS_MDB_BLK        23 fs/hfsplus/part_tbl.c #define HFS_MDB_BLK		2 /* Block (w/i partition) of MDB */