XFS_ABTB_MAGIC 50 fs/xfs/xfs_btree.c XFS_ABTB_MAGIC, XFS_ABTC_MAGIC, XFS_BMAP_MAGIC, XFS_IBT_MAGIC XFS_ABTB_MAGIC 256 fs/xfs/xfs_fsops.c block->bb_magic = cpu_to_be32(XFS_ABTB_MAGIC);