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-rw-r--r--fs/ocfs2/xattr.h14
1 files changed, 14 insertions, 0 deletions
diff --git a/fs/ocfs2/xattr.h b/fs/ocfs2/xattr.h
index 9a67e7d8f812..5a1ebc789f7e 100644
--- a/fs/ocfs2/xattr.h
+++ b/fs/ocfs2/xattr.h
@@ -70,4 +70,18 @@ int ocfs2_calc_xattr_init(struct inode *, struct buffer_head *,
int, struct ocfs2_security_xattr_info *,
int *, int *, struct ocfs2_alloc_context **);
+/*
+ * xattrs can live inside an inode, as part of an external xattr block,
+ * or inside an xattr bucket, which is the leaf of a tree rooted in an
+ * xattr block. Some of the xattr calls, especially the value setting
+ * functions, want to treat each of these locations as equal. Let's wrap
+ * them in a structure that we can pass around instead of raw buffer_heads.
+ */
+struct ocfs2_xattr_value_buf {
+ struct buffer_head *vb_bh;
+ ocfs2_journal_access_func vb_access;
+ struct ocfs2_xattr_value_root *vb_xv;
+};
+
+
#endif /* OCFS2_XATTR_H */