XMBUF_BLOCKSIZE
return XMBUF_BLOCKSIZE - XFS_BTREE_LBLOCK_CRC_LEN;
#define XFBNO_BLOCKSIZE (XMBUF_BLOCKSIZE)
if (BBTOB(bp->b_length) != XMBUF_BLOCKSIZE)
btp->bt_meta_sectorsize = XMBUF_BLOCKSIZE;
btp->bt_meta_sectormask = XMBUF_BLOCKSIZE - 1;
error = xfs_init_buftarg(btp, XMBUF_BLOCKSIZE, descr);