From: Darrick J. Wong <djwong@kernel.org>
Date: Mon, 25 Nov 2024 21:14:21 +0000 (-0800)
Subject: xfs: export realtime group geometry via XFS_FSOP_GEOM
X-Git-Tag: v6.13.0~118
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=4215af60f6d34baa329b9dd48f280d816cc724c3;p=thirdparty%2Fxfsprogs-dev.git

xfs: export realtime group geometry via XFS_FSOP_GEOM

Source kernel commit: 8edde94d640153d645f85b94b2e1af8872c11ac8

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

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---

diff --git a/libxfs/xfs_fs.h b/libxfs/xfs_fs.h
index faa38a7d..5c224d03 100644
--- a/libxfs/xfs_fs.h
+++ b/libxfs/xfs_fs.h
@@ -187,7 +187,9 @@ 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		rgextents;	/* rt extents 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 96b0a736..2e536bc3 100644
--- a/libxfs/xfs_sb.c
+++ b/libxfs/xfs_sb.c
@@ -1424,6 +1424,11 @@ xfs_fs_geometry(
 		return;
 
 	geo->version = XFS_FSOP_GEOM_VERSION_V5;
+
+	if (xfs_has_rtgroups(mp)) {
+		geo->rgcount = sbp->sb_rgcount;
+		geo->rgextents = sbp->sb_rgextents;
+	}
 }
 
 /* Read a secondary superblock. */