346 	bno = NULLFSBLOCK;  in xfs_bmap_check_leaf_extents()
359 	ASSERT(bno != NULLFSBLOCK);  in xfs_bmap_check_leaf_extents()
450 		if (bno == NULLFSBLOCK)  in xfs_bmap_check_leaf_extents()
548 	ASSERT(bno != NULLFSBLOCK);  in __xfs_bmap_add_free()
702 	if (tp->t_firstblock == NULLFSBLOCK) {  in xfs_bmap_extents_to_btree()
719 	if (WARN_ON_ONCE(args.fsbno == NULLFSBLOCK)) {  in xfs_bmap_extents_to_btree()
727 	ASSERT(tp->t_firstblock == NULLFSBLOCK ||  in xfs_bmap_extents_to_btree()
862 	if (tp->t_firstblock == NULLFSBLOCK) {  in xfs_bmap_local_to_extents()
876 	ASSERT(args.fsbno != NULLFSBLOCK);  in xfs_bmap_local_to_extents()
1233 		if (nextbno != NULLFSBLOCK)  in xfs_iread_extents()
1261 		if (bno == NULLFSBLOCK)  in xfs_iread_extents()
3047 	nullfb = ap->tp->t_firstblock == NULLFSBLOCK;  in xfs_bmap_adjacent()
3116 				prevbno = NULLFSBLOCK;  in xfs_bmap_adjacent()
3122 			prevbno = NULLFSBLOCK;  in xfs_bmap_adjacent()
3158 				gotbno = NULLFSBLOCK;  in xfs_bmap_adjacent()
3164 			gotbno = NULLFSBLOCK;  in xfs_bmap_adjacent()
3169 		if (prevbno != NULLFSBLOCK && gotbno != NULLFSBLOCK)  in xfs_bmap_adjacent()
3171 		else if (prevbno != NULLFSBLOCK)  in xfs_bmap_adjacent()
3173 		else if (gotbno != NULLFSBLOCK)  in xfs_bmap_adjacent()
3409 	nullfb = ap->tp->t_firstblock == NULLFSBLOCK;  in xfs_bmap_btalloc()
3548 	if (tryagain && args.fsbno == NULLFSBLOCK) {  in xfs_bmap_btalloc()
3562 	if (isaligned && args.fsbno == NULLFSBLOCK) {  in xfs_bmap_btalloc()
3573 	if (args.fsbno == NULLFSBLOCK && nullfb &&  in xfs_bmap_btalloc()
3581 	if (args.fsbno == NULLFSBLOCK && nullfb) {  in xfs_bmap_btalloc()
3589 	if (args.fsbno != NULLFSBLOCK) {  in xfs_bmap_btalloc()
3594 		ASSERT(ap->tp->t_firstblock == NULLFSBLOCK ||  in xfs_bmap_btalloc()
3599 		if (ap->tp->t_firstblock == NULLFSBLOCK)  in xfs_bmap_btalloc()
3621 		ap->blkno = NULLFSBLOCK;  in xfs_bmap_btalloc()
4055 	if (bma->blkno == NULLFSBLOCK)  in xfs_bmapi_allocate()
4272 	if (!tp || tp->t_firstblock == NULLFSBLOCK) {  in xfs_bmapi_write()
4366 			if (bma.blkno == NULLFSBLOCK)  in xfs_bmapi_write()
5771 	if (*next_fsb == NULLFSBLOCK) {  in xfs_bmap_insert_extents()
6058 	ASSERT(tp->t_firstblock == NULLFSBLOCK);  in xfs_bmap_finish_one()