highblock 1146 kern/fs/sfs/sfs_vnode.c uint32_t idblock, baseblock, highblock;
highblock 1174 kern/fs/sfs/sfs_vnode.c highblock = baseblock + SFS_DBPERIDB - 1;
highblock 1176 kern/fs/sfs/sfs_vnode.c if (blocklen < highblock && idblock != 0) {