xfs: add fs geometry bit for sparse inode chunks

Define an fs geometry bit for sparse inode chunks such that the
characteristic of the fs can be identified by userspace.

Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>

diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c
index cb7e8a2..4bd6463 100644
--- a/fs/xfs/xfs_fsops.c
+++ b/fs/xfs/xfs_fsops.c
@@ -101,7 +101,9 @@
 			(xfs_sb_version_hasftype(&mp->m_sb) ?
 				XFS_FSOP_GEOM_FLAGS_FTYPE : 0) |
 			(xfs_sb_version_hasfinobt(&mp->m_sb) ?
-				XFS_FSOP_GEOM_FLAGS_FINOBT : 0);
+				XFS_FSOP_GEOM_FLAGS_FINOBT : 0) |
+			(xfs_sb_version_hassparseinodes(&mp->m_sb) ?
+				XFS_FSOP_GEOM_FLAGS_SPINODES : 0);
 		geo->logsectsize = xfs_sb_version_hassector(&mp->m_sb) ?
 				mp->m_sb.sb_logsectsize : BBSIZE;
 		geo->rtsectsize = mp->m_sb.sb_blocksize;