xfs: report finobt status in fs geometry

Define the XFS_FSOP_GEOM_FLAGS_FINOBT fs geometry flag and set the
associated bit if the filesystem supports the free inode btree.

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

2 files changed, 4 insertions, 1 deletions

diff --git a/fs/xfs/xfs_fs.h b/fs/xfs/xfs_fs.h
index c5fc116dfaa3..d34703dbcb42 100644
--- a/fs/xfs/xfs_fs.h
+++ b/fs/xfs/xfs_fs.h
@@ -238,6 +238,7 @@ typedef struct xfs_fsop_resblks {
 #define XFS_FSOP_GEOM_FLAGS_LAZYSB      0x4000  /* lazy superblock counters */
 #define XFS_FSOP_GEOM_FLAGS_V5SB        0x8000  /* version 5 superblock */
 #define XFS_FSOP_GEOM_FLAGS_FTYPE       0x10000 /* inode directory types */
+#define XFS_FSOP_GEOM_FLAGS_FINOBT      0x20000 /* free inode btree */
 
 /*
  * Minimum and maximum sizes need for growth checks.
diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c
index 96e4eb0d9452..3445ead7c1fc 100644
--- a/fs/xfs/xfs_fsops.c
+++ b/fs/xfs/xfs_fsops.c
@@ -104,7 +104,9 @@ xfs_fs_geometry(
                         (xfs_sb_version_hascrc(&mp->m_sb) ?
                                 XFS_FSOP_GEOM_FLAGS_V5SB : 0) |
                         (xfs_sb_version_hasftype(&mp->m_sb) ?
-                                XFS_FSOP_GEOM_FLAGS_FTYPE : 0);
+                                XFS_FSOP_GEOM_FLAGS_FTYPE : 0) |
+                        (xfs_sb_version_hasfinobt(&mp->m_sb) ?
+                                XFS_FSOP_GEOM_FLAGS_FINOBT : 0);
                 geo->logsectsize = xfs_sb_version_hassector(&mp->m_sb) ?
                                 mp->m_sb.sb_logsectsize : BBSIZE;
                 geo->rtsectsize = mp->m_sb.sb_blocksize;