From: Darrick J. Wong <djwong@xxxxxxxxxx>
Export the realtime geometry information so that userspace can query it.
Signed-off-by: Darrick J. Wong <djwong@xxxxxxxxxx>
---
fs/xfs/libxfs/xfs_fs.h | 4 +++-
fs/xfs/libxfs/xfs_sb.c | 5 +++++
2 files changed, 8 insertions(+), 1 deletion(-)
diff --git a/fs/xfs/libxfs/xfs_fs.h b/fs/xfs/libxfs/xfs_fs.h
index c4995f6557d2..ba90649c54e0 100644
--- a/fs/xfs/libxfs/xfs_fs.h
+++ b/fs/xfs/libxfs/xfs_fs.h
@@ -186,7 +186,9 @@ struct xfs_fsop_geom {
__u32 logsunit; /* log stripe unit, bytes */
uint32_t sick; /* o: unhealthy fs & rt metadata */
uint32_t checked; /* o: checked fs & rt metadata */
- __u64 reserved[17]; /* reserved space */
+ __u32 rgblocks; /* rtblocks in a realtime group */
+ __u32 rgcount; /* number of realtime groups */
+ __u64 reserved[16]; /* reserved space */
};
#define XFS_FSOP_GEOM_SICK_COUNTERS (1 << 0) /* summary counters */
diff --git a/fs/xfs/libxfs/xfs_sb.c b/fs/xfs/libxfs/xfs_sb.c
index 2e8ec9214c6c..db88f601e24b 100644
--- a/fs/xfs/libxfs/xfs_sb.c
+++ b/fs/xfs/libxfs/xfs_sb.c
@@ -1348,6 +1348,11 @@ xfs_fs_geometry(
return;
geo->version = XFS_FSOP_GEOM_VERSION_V5;
+
+ if (xfs_has_rtgroups(mp)) {
+ geo->rgcount = sbp->sb_rgcount;
+ geo->rgblocks = sbp->sb_rgblocks;
+ }
}
/* Read a secondary superblock. */
