From bdeb014153934e1d98787a9609a7532baf6a5c37 Mon Sep 17 00:00:00 2001
From: Zorro Lang <zlang@redhat.com>
Date: Tue, 6 Apr 2021 16:56:32 -0400
Subject: [PATCH] libxfs: expose inobtcount in xfs geometry

Source kernel commit: bc41fa5321f93ecbabec177f888451cfc17ad66d

As xfs supports the feature of inode btree block counters now, expose
this feature flag in xfs geometry, for userspace can check if the
inobtcnt is enabled or not.

Signed-off-by: Zorro Lang <zlang@redhat.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
---

diff --git a/libxfs/xfs_fs.h b/libxfs/xfs_fs.h
index 714dba1..4e4a22e 100644
--- a/libxfs/xfs_fs.h
+++ b/libxfs/xfs_fs.h
@@ -232,6 +232,7 @@ typedef struct xfs_fsop_resblks {
 #define XFS_FSOP_GEOM_FLAGS_RMAPBT	0x80000	/* reverse mapping btree */
 #define XFS_FSOP_GEOM_FLAGS_REFLINK	0x100000 /* files can share blocks */
 #define XFS_FSOP_GEOM_FLAGS_BIGTIME	0x200000 /* 64-bit nsec timestamps */
+#define XFS_FSOP_GEOM_FLAGS_INOBTCNT	0x400000 /* inobt btree counter */
 
 /*
  * Minimum and maximum sizes need for growth checks.
diff --git a/libxfs/xfs_sb.c b/libxfs/xfs_sb.c
index d11545b..6249e9a 100644
--- a/libxfs/xfs_sb.c
+++ b/libxfs/xfs_sb.c
@@ -1126,6 +1126,8 @@ xfs_fs_geometry(
 		geo->flags |= XFS_FSOP_GEOM_FLAGS_REFLINK;
 	if (xfs_sb_version_hasbigtime(sbp))
 		geo->flags |= XFS_FSOP_GEOM_FLAGS_BIGTIME;
+	if (xfs_sb_version_hasinobtcounts(sbp))
+		geo->flags |= XFS_FSOP_GEOM_FLAGS_INOBTCNT;
 	if (xfs_sb_version_hassector(sbp))
 		geo->logsectsize = sbp->sb_logsectsize;
 	else