diff options
Diffstat (limited to 'fs/xfs/libxfs/xfs_ag.c')
| -rw-r--r-- | fs/xfs/libxfs/xfs_ag.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/fs/xfs/libxfs/xfs_ag.c b/fs/xfs/libxfs/xfs_ag.c index 8f3e6ee85c34..d1a9163d4a48 100644 --- a/fs/xfs/libxfs/xfs_ag.c +++ b/fs/xfs/libxfs/xfs_ag.c @@ -225,6 +225,41 @@ xfs_ag_block_count( mp->m_sb.sb_dblocks); } +/* Calculate the first and last possible inode number in an AG. */ +static void +__xfs_agino_range( + struct xfs_mount *mp, + xfs_agblock_t eoag, + xfs_agino_t *first, + xfs_agino_t *last) +{ + xfs_agblock_t bno; + + /* + * Calculate the first inode, which will be in the first + * cluster-aligned block after the AGFL. + */ + bno = round_up(XFS_AGFL_BLOCK(mp) + 1, M_IGEO(mp)->cluster_align); + *first = XFS_AGB_TO_AGINO(mp, bno); + + /* + * Calculate the last inode, which will be at the end of the + * last (aligned) cluster that can be allocated in the AG. + */ + bno = round_down(eoag, M_IGEO(mp)->cluster_align); + *last = XFS_AGB_TO_AGINO(mp, bno) - 1; +} + +void +xfs_agino_range( + struct xfs_mount *mp, + xfs_agnumber_t agno, + xfs_agino_t *first, + xfs_agino_t *last) +{ + return __xfs_agino_range(mp, xfs_ag_block_count(mp, agno), first, last); +} + int xfs_initialize_perag( struct xfs_mount *mp, @@ -302,6 +337,8 @@ xfs_initialize_perag( pag->block_count = __xfs_ag_block_count(mp, index, agcount, dblocks); pag->min_block = XFS_AGFL_BLOCK(mp); + __xfs_agino_range(mp, pag->block_count, &pag->agino_min, + &pag->agino_max); } index = xfs_set_inode_alloc(mp, agcount); @@ -968,6 +1005,8 @@ xfs_ag_extend_space( /* Update perag geometry */ pag->block_count = be32_to_cpu(agf->agf_length); + __xfs_agino_range(pag->pag_mount, pag->block_count, &pag->agino_min, + &pag->agino_max); return 0; } |