585 	ASSERT(!isnullstartblock(bno));  in xfs_bmap_add_free()
830 		if (!isnullstartblock(xfs_bmbt_get_startblock(ep))) {  in xfs_bmap_extents_to_btree()
1631 		 isnullstartblock(rec.br_startblock));  in xfs_bmap_isaeof()
1734 	ASSERT(!isnullstartblock(new->br_startblock));  in xfs_bmap_add_extent_delay_real()
1773 		if (isnullstartblock(LEFT.br_startblock))  in xfs_bmap_add_extent_delay_real()
1793 		if (isnullstartblock(RIGHT.br_startblock))  in xfs_bmap_add_extent_delay_real()
2290 	ASSERT(!isnullstartblock(new->br_startblock));  in xfs_bmap_add_extent_unwritten_real()
2329 		if (isnullstartblock(LEFT.br_startblock))  in xfs_bmap_add_extent_unwritten_real()
2348 		if (isnullstartblock(RIGHT.br_startblock))  in xfs_bmap_add_extent_unwritten_real()
2800 	ASSERT(isnullstartblock(new->br_startblock));  in xfs_bmap_add_extent_hole_delay()
2809 		if (isnullstartblock(left.br_startblock))  in xfs_bmap_add_extent_hole_delay()
2821 		if (isnullstartblock(right.br_startblock))  in xfs_bmap_add_extent_hole_delay()
2948 	ASSERT(!isnullstartblock(new->br_startblock));  in xfs_bmap_add_extent_hole_real()
2964 		if (isnullstartblock(left.br_startblock))  in xfs_bmap_add_extent_hole_real()
2975 		if (isnullstartblock(right.br_startblock))  in xfs_bmap_add_extent_hole_real()
3378 	    !isnullstartblock(ap->prev.br_startblock) &&  in xfs_bmap_adjacent()
3407 		    !isnullstartblock(ap->prev.br_startblock) &&  in xfs_bmap_adjacent()
3448 		if (!isnullstartblock(ap->got.br_startblock)) {  in xfs_bmap_adjacent()
3916 		if (isnullstartblock(got->br_startblock))  in xfs_bmapi_trim_map()
3926 	if (isnullstartblock(got->br_startblock))  in xfs_bmapi_trim_map()
4171 	ASSERT(isnullstartblock(got->br_startblock));  in xfs_bmapi_reserve_delalloc()
4554 		wasdelay = !inhole && isnullstartblock(bma.got.br_startblock);  in xfs_bmapi_write()
4731 	delay = isnullstartblock(got.br_startblock);  in xfs_bmap_del_extent()
4732 	ASSERT(isnullstartblock(del->br_startblock) == delay);  in xfs_bmap_del_extent()
5128 		wasdel = isnullstartblock(del.br_startblock);  in xfs_bunmapi()
5226 				ASSERT(!isnullstartblock(prev.br_startblock));  in xfs_bunmapi()
5516 	XFS_WANT_CORRUPTED_RETURN(mp, !isnullstartblock(got.br_startblock));  in xfs_bmse_shift_one()