702 	if (tp->t_firstblock == NULLFSBLOCK) {  in xfs_bmap_extents_to_btree()
707 		args.fsbno = tp->t_firstblock;  in xfs_bmap_extents_to_btree()
710 		args.fsbno = tp->t_firstblock;  in xfs_bmap_extents_to_btree()
727 	ASSERT(tp->t_firstblock == NULLFSBLOCK ||  in xfs_bmap_extents_to_btree()
728 	       args.agno >= XFS_FSB_TO_AGNO(mp, tp->t_firstblock));  in xfs_bmap_extents_to_btree()
729 	tp->t_firstblock = args.fsbno;  in xfs_bmap_extents_to_btree()
862 	if (tp->t_firstblock == NULLFSBLOCK) {  in xfs_bmap_local_to_extents()
866 		args.fsbno = tp->t_firstblock;  in xfs_bmap_local_to_extents()
878 	tp->t_firstblock = args.fsbno;  in xfs_bmap_local_to_extents()
3064 	nullfb = ap->tp->t_firstblock == NULLFSBLOCK;  in xfs_bmap_adjacent()
3068 							ap->tp->t_firstblock);  in xfs_bmap_adjacent()
3426 	nullfb = ap->tp->t_firstblock == NULLFSBLOCK;  in xfs_bmap_btalloc()
3428 							ap->tp->t_firstblock);  in xfs_bmap_btalloc()
3439 		ap->blkno = ap->tp->t_firstblock;  in xfs_bmap_btalloc()
3450 		ap->blkno = ap->tp->t_firstblock;  in xfs_bmap_btalloc()
3611 		ASSERT(ap->tp->t_firstblock == NULLFSBLOCK ||  in xfs_bmap_btalloc()
3612 		       XFS_FSB_TO_AGNO(mp, ap->tp->t_firstblock) <=  in xfs_bmap_btalloc()
3616 		if (ap->tp->t_firstblock == NULLFSBLOCK)  in xfs_bmap_btalloc()
3617 			ap->tp->t_firstblock = args.fsbno;  in xfs_bmap_btalloc()
4302 	if (!tp || tp->t_firstblock == NULLFSBLOCK) {  in xfs_bmapi_write()
6093 	ASSERT(tp->t_firstblock == NULLFSBLOCK);  in xfs_bmap_finish_one()