man: document rgextents geom field

Document the new rgextent geom field.

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

diff --git a/man/man2/ioctl_xfs_fsgeometry.2 b/man/man2/ioctl_xfs_fsgeometry.2
index c808ad5b8b9190deb62a08be7eb15b69816512ab..502054f391e9b598bc65dead3f512183fbe38f2b 100644 (file)
--- a/man/man2/ioctl_xfs_fsgeometry.2
+++ b/man/man2/ioctl_xfs_fsgeometry.2
@@ -49,7 +49,8 @@ struct xfs_fsop_geom {
 
        __u32         sick;
        __u32         checked;
-       __u64         reserved[17];
+       __u64         rgextents;
+       __u64         reserved[16];
 };
 .fi
 .in
@@ -139,6 +140,9 @@ Please see the section
 .B XFS METADATA HEALTH REPORTING
 for more details.
 .PP
+.I rgextents
+Is the number of RT extents in each rtgroup.
+.PP
 .I reserved
 is set to zero.
 .SH FILESYSTEM FEATURE FLAGS