1 files changed, 13 insertions, 0 deletions

diff --git a/fs/xfs/xfs_btree.h b/fs/xfs/xfs_btree.h
index 5398cd0d4d4d..593f82b01b6f 100644
--- a/fs/xfs/xfs_btree.h
+++ b/fs/xfs/xfs_btree.h
@@ -180,6 +180,10 @@ do {    \
 #define XFS_BTREE_MAXLEVELS     8       /* max of all btrees */
 
 struct xfs_btree_ops {
+        /* size of the key and record structures */
+        size_t  key_len;
+        size_t  rec_len;
+
         /* cursor operations */
         struct xfs_btree_cur *(*dup_cursor)(struct xfs_btree_cur *);
 
@@ -497,6 +501,15 @@ xfs_btree_setbuf(
         int                     lev,    /* level in btree */
         struct xfs_buf          *bp);   /* new buffer to set */
 
+
+/*
+ * Helpers.
+ */
+static inline int xfs_btree_get_level(struct xfs_btree_block *block)
+{
+        return be16_to_cpu(block->bb_level);
+}
+
 #endif  /* __KERNEL__ */