From: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
Define a version field for the AG geometry ioctl structure.
Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
---
fs/xfs/libxfs/xfs_ag.c | 1 +
fs/xfs/libxfs/xfs_fs.h | 4 +++-
2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/fs/xfs/libxfs/xfs_ag.c b/fs/xfs/libxfs/xfs_ag.c
index 5de296b34ab1..c54f7e6661d8 100644
--- a/fs/xfs/libxfs/xfs_ag.c
+++ b/fs/xfs/libxfs/xfs_ag.c
@@ -566,6 +566,7 @@ xfs_ag_get_geometry(
/* Fill out form. */
memset(ageo, 0, sizeof(*ageo));
ageo->ag_number = agno;
+ ageo->ag_version = XFS_AG_GEOM_VERSION_V0;
agi = XFS_BUF_TO_AGI(agi_bp);
ageo->ag_icount = be32_to_cpu(agi->agi_count);
diff --git a/fs/xfs/libxfs/xfs_fs.h b/fs/xfs/libxfs/xfs_fs.h
index 52d03a3a02a4..9da8e602131b 100644
--- a/fs/xfs/libxfs/xfs_fs.h
+++ b/fs/xfs/libxfs/xfs_fs.h
@@ -287,7 +287,7 @@ struct xfs_ag_geometry {
uint32_t ag_ifree; /* o: inodes free */
uint32_t ag_sick; /* o: sick things in ag */
uint32_t ag_checked; /* o: checked metadata in ag */
- uint32_t ag_reserved32; /* o: zero */
+ uint32_t ag_version; /* o: version of this structure */
uint64_t ag_reserved[12];/* o: zero */
};
#define XFS_AG_GEOM_SICK_SB (1 << 0) /* superblock */
@@ -301,6 +301,8 @@ struct xfs_ag_geometry {
#define XFS_AG_GEOM_SICK_RMAPBT (1 << 8) /* reverse mappings */
#define XFS_AG_GEOM_SICK_REFCNTBT (1 << 9) /* reference counts */
+#define XFS_AG_GEOM_VERSION_V0 (0)
+
/*
* Structures for XFS_IOC_FSGROWFSDATA, XFS_IOC_FSGROWFSLOG & XFS_IOC_FSGROWFSRT
*/
