diff options
Diffstat (limited to 'fs/xfs/libxfs/xfs_rtgroup.h')
| -rw-r--r-- | fs/xfs/libxfs/xfs_rtgroup.h | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/fs/xfs/libxfs/xfs_rtgroup.h b/fs/xfs/libxfs/xfs_rtgroup.h index 2c894df723a7..3732f65ba8a1 100644 --- a/fs/xfs/libxfs/xfs_rtgroup.h +++ b/fs/xfs/libxfs/xfs_rtgroup.h @@ -12,6 +12,9 @@ struct xfs_mount; struct xfs_trans; enum xfs_rtg_inodes { + XFS_RTGI_BITMAP, /* allocation bitmap */ + XFS_RTGI_SUMMARY, /* allocation summary */ + XFS_RTGI_MAX, }; @@ -26,10 +29,19 @@ struct xfs_rtgroup { struct xfs_group rtg_group; /* per-rtgroup metadata inodes */ - struct xfs_inode *rtg_inodes[1 /* hack */]; + struct xfs_inode *rtg_inodes[XFS_RTGI_MAX]; /* Number of blocks in this group */ xfs_rtxnum_t rtg_extents; + + /* + * Cache of rt summary level per bitmap block with the invariant that + * rtg_rsum_cache[bbno] > the maximum i for which rsum[i][bbno] != 0, + * or 0 if rsum[i][bbno] == 0 for all i. + * + * Reads and writes are serialized by the rsumip inode lock. + */ + uint8_t *rtg_rsum_cache; }; static inline struct xfs_rtgroup *to_rtg(struct xfs_group *xg) |