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()
802 	ASSERT(args.fsbno != NULLFSBLOCK);  in xfs_bmap_extents_to_btree()
803 	ASSERT(*firstblock == NULLFSBLOCK ||  in xfs_bmap_extents_to_btree()
931 	if (*firstblock == NULLFSBLOCK) {  in xfs_bmap_local_to_extents()
945 	ASSERT(args.fsbno != NULLFSBLOCK);  in xfs_bmap_local_to_extents()
1262 	bno = NULLFSBLOCK;  in xfs_bmap_read_extents()
1275 	ASSERT(bno != NULLFSBLOCK);  in xfs_bmap_read_extents()
1324 		if (nextbno != NULLFSBLOCK)  in xfs_bmap_read_extents()
1356 		if (bno == NULLFSBLOCK)  in xfs_bmap_read_extents()
3370 	nullfb = *ap->firstblock == NULLFSBLOCK;  in xfs_bmap_adjacent()
3437 				prevbno = NULLFSBLOCK;  in xfs_bmap_adjacent()
3443 			prevbno = NULLFSBLOCK;  in xfs_bmap_adjacent()
3479 				gotbno = NULLFSBLOCK;  in xfs_bmap_adjacent()
3485 			gotbno = NULLFSBLOCK;  in xfs_bmap_adjacent()
3490 		if (prevbno != NULLFSBLOCK && gotbno != NULLFSBLOCK)  in xfs_bmap_adjacent()
3492 		else if (prevbno != NULLFSBLOCK)  in xfs_bmap_adjacent()
3494 		else if (gotbno != NULLFSBLOCK)  in xfs_bmap_adjacent()
3678 	nullfb = *ap->firstblock == NULLFSBLOCK;  in xfs_bmap_btalloc()
3807 	if (tryagain && args.fsbno == NULLFSBLOCK) {  in xfs_bmap_btalloc()
3821 	if (isaligned && args.fsbno == NULLFSBLOCK) {  in xfs_bmap_btalloc()
3832 	if (args.fsbno == NULLFSBLOCK && nullfb &&  in xfs_bmap_btalloc()
3840 	if (args.fsbno == NULLFSBLOCK && nullfb) {  in xfs_bmap_btalloc()
3849 	if (args.fsbno != NULLFSBLOCK) {  in xfs_bmap_btalloc()
3854 		ASSERT(*ap->firstblock == NULLFSBLOCK ||  in xfs_bmap_btalloc()
3862 		if (*ap->firstblock == NULLFSBLOCK)  in xfs_bmap_btalloc()
3880 		ap->blkno = NULLFSBLOCK;  in xfs_bmap_btalloc()
4333 	if (bma->blkno == NULLFSBLOCK)  in xfs_bmapi_allocate()
4524 	if (*firstblock == NULLFSBLOCK) {  in xfs_bmapi_write()
4584 			if (bma.blkno == NULLFSBLOCK)  in xfs_bmapi_write()
4659 			ASSERT(*firstblock == NULLFSBLOCK ||  in xfs_bmapi_write()
5651 	ASSERT(*next_fsb != NULLFSBLOCK || direction == SHIFT_RIGHT);  in xfs_bmap_shift_extents()
5682 	if (*next_fsb == NULLFSBLOCK) {  in xfs_bmap_shift_extents()
5739 			*next_fsb = NULLFSBLOCK;  in xfs_bmap_shift_extents()