1 files changed, 3 insertions, 3 deletions

diff --git a/fs/xfs/xfs_dinode.h b/fs/xfs/xfs_dinode.h
index f7a0e95d197a..e5869b50dc41 100644
--- a/fs/xfs/xfs_dinode.h
+++ b/fs/xfs/xfs_dinode.h
@@ -39,6 +39,9 @@ typedef struct xfs_timestamp {
  * There is a very similar struct icdinode in xfs_inode which matches the
  * layout of the first 96 bytes of this structure, but is kept in native
  * format instead of big endian.
+ *
+ * Note: di_flushiter is only used by v1/2 inodes - it's effectively a zeroed
+ * padding field for v3 inodes.
  */
 typedef struct xfs_dinode {
         __be16          di_magic;       /* inode magic # = XFS_DINODE_MAGIC */
@@ -132,9 +135,6 @@ typedef enum xfs_dinode_fmt {
 #define XFS_LITINO(mp, version) \
         ((int)(((mp)->m_sb.sb_inodesize) - xfs_dinode_size(version)))
 
-#define XFS_BROOT_SIZE_ADJ(ip) \
-        (XFS_BMBT_BLOCK_LEN((ip)->i_mount) - sizeof(xfs_bmdr_block_t))
-
 /*
  * Inode data & attribute fork sizes, per inode.
  */