355 	bno = NULLFSBLOCK;  in xfs_bmap_check_leaf_extents()
368 	ASSERT(bno != NULLFSBLOCK);  in xfs_bmap_check_leaf_extents()
459 		if (bno == NULLFSBLOCK)  in xfs_bmap_check_leaf_extents()
582 	ASSERT(bno != NULLFSBLOCK);  in xfs_bmap_add_free()
781 	if (*firstblock == NULLFSBLOCK) {  in xfs_bmap_extents_to_btree()
804 	ASSERT(args.fsbno != NULLFSBLOCK);  in xfs_bmap_extents_to_btree()
805 	ASSERT(*firstblock == NULLFSBLOCK ||  in xfs_bmap_extents_to_btree()
933 	if (*firstblock == NULLFSBLOCK) {  in xfs_bmap_local_to_extents()
947 	ASSERT(args.fsbno != NULLFSBLOCK);  in xfs_bmap_local_to_extents()
1263 	bno = NULLFSBLOCK;  in xfs_bmap_read_extents()
1276 	ASSERT(bno != NULLFSBLOCK);  in xfs_bmap_read_extents()
1325 		if (nextbno != NULLFSBLOCK)  in xfs_bmap_read_extents()
1357 		if (bno == NULLFSBLOCK)  in xfs_bmap_read_extents()
3372 	nullfb = *ap->firstblock == NULLFSBLOCK;  in xfs_bmap_adjacent()
3439 				prevbno = NULLFSBLOCK;  in xfs_bmap_adjacent()
3445 			prevbno = NULLFSBLOCK;  in xfs_bmap_adjacent()
3481 				gotbno = NULLFSBLOCK;  in xfs_bmap_adjacent()
3487 			gotbno = NULLFSBLOCK;  in xfs_bmap_adjacent()
3492 		if (prevbno != NULLFSBLOCK && gotbno != NULLFSBLOCK)  in xfs_bmap_adjacent()
3494 		else if (prevbno != NULLFSBLOCK)  in xfs_bmap_adjacent()
3496 		else if (gotbno != NULLFSBLOCK)  in xfs_bmap_adjacent()
3681 	nullfb = *ap->firstblock == NULLFSBLOCK;  in xfs_bmap_btalloc()
3815 	if (tryagain && args.fsbno == NULLFSBLOCK) {  in xfs_bmap_btalloc()
3829 	if (isaligned && args.fsbno == NULLFSBLOCK) {  in xfs_bmap_btalloc()
3840 	if (args.fsbno == NULLFSBLOCK && nullfb &&  in xfs_bmap_btalloc()
3848 	if (args.fsbno == NULLFSBLOCK && nullfb) {  in xfs_bmap_btalloc()
3857 	if (args.fsbno != NULLFSBLOCK) {  in xfs_bmap_btalloc()
3862 		ASSERT(*ap->firstblock == NULLFSBLOCK ||  in xfs_bmap_btalloc()
3870 		if (*ap->firstblock == NULLFSBLOCK)  in xfs_bmap_btalloc()
3888 		ap->blkno = NULLFSBLOCK;  in xfs_bmap_btalloc()
4344 	if (bma->blkno == NULLFSBLOCK)  in xfs_bmapi_allocate()
4566 	if (*firstblock == NULLFSBLOCK) {  in xfs_bmapi_write()
4626 			if (bma.blkno == NULLFSBLOCK)  in xfs_bmapi_write()
4701 			ASSERT(*firstblock == NULLFSBLOCK ||  in xfs_bmapi_write()
5693 	ASSERT(*next_fsb != NULLFSBLOCK || direction == SHIFT_RIGHT);  in xfs_bmap_shift_extents()
5724 	if (*next_fsb == NULLFSBLOCK) {  in xfs_bmap_shift_extents()
5781 			*next_fsb = NULLFSBLOCK;  in xfs_bmap_shift_extents()