diff mbox series

[06/45] xfs: export realtime group geometry via XFS_FSOP_GEOM

Message ID 167243878445.731133.15326238046958531774.stgit@magnolia (mailing list archive)
State Superseded, archived
Headers show
Series libxfs: shard the realtime section | expand

Commit Message

Darrick J. Wong Dec. 30, 2022, 10:19 p.m. UTC 
From: Darrick J. Wong <djwong@kernel.org>

Export the realtime geometry information so that userspace can query it.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
---
 libxfs/xfs_fs.h |    4 +++-
 libxfs/xfs_sb.c |    5 +++++
 2 files changed, 8 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/libxfs/xfs_fs.h b/libxfs/xfs_fs.h
index c4995f6557d..ba90649c54e 100644
--- a/libxfs/xfs_fs.h
+++ b/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/libxfs/xfs_sb.c b/libxfs/xfs_sb.c
index 7b8baf64e82..0ba9143e7c5 100644
--- a/libxfs/xfs_sb.c
+++ b/libxfs/xfs_sb.c
@@ -1346,6 +1346,11 @@  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. */