xfs_bmap_bmdr_space
dsize = xfs_bmap_bmdr_space(dp->i_df.if_broot);
if (xfs_bmap_bmdr_space(block) <= xfs_inode_data_fork_size(ip))
ASSERT(xfs_bmap_bmdr_space(broot) <=
ASSERT(xfs_bmap_bmdr_space(broot) <=
ASSERT(xfs_bmap_bmdr_space(ifp->if_broot) <=
xfs_bmap_bmdr_space(tifp->if_broot) > xfs_inode_fork_boff(ip))
xfs_bmap_bmdr_space(ip->i_df.if_broot) > xfs_inode_fork_boff(tip))