xfs_agblock_t
agb2daddr (xfs_agnumber_t agno, xfs_agblock_t agbno)
(xfs_agblock_t)(fsbno & mask32lo(xfs.agblklog)));
xfs_agblock_t agbno;
static inline xfs_agblock_t
xfs_agblock_t bb_leftsib;
xfs_agblock_t bb_rightsib;
xfs_agblock_t sb_rextsize; /* realtime extent size, blocks */
xfs_agblock_t sb_agblocks; /* size of an allocation group */