ISNULLDSTARTBLOCK 1841 fs/xfs/xfs_bmap_btree.c 		ASSERT((b >> 32) == 0 || ISNULLDSTARTBLOCK(b));
ISNULLDSTARTBLOCK 1917 fs/xfs/xfs_bmap_btree.c 	ASSERT((b >> 32) == 0 || ISNULLDSTARTBLOCK(b));