ocfs2: Add metaecc for ocfs2_refcount_block.

Add metaecc and journal trigger for ocfs2_refcount_block.

Signed-off-by: Tao Ma <tao.ma@oracle.com>
diff --git a/fs/ocfs2/journal.h b/fs/ocfs2/journal.h
index 6163f28..b2dc125 100644
--- a/fs/ocfs2/journal.h
+++ b/fs/ocfs2/journal.h
@@ -281,6 +281,9 @@
 /* ocfs2_extent_block */
 int ocfs2_journal_access_eb(handle_t *handle, struct ocfs2_caching_info *ci,
 			    struct buffer_head *bh, int type);
+/* ocfs2_refcount_block */
+int ocfs2_journal_access_rb(handle_t *handle, struct ocfs2_caching_info *ci,
+			    struct buffer_head *bh, int type);
 /* ocfs2_group_desc */
 int ocfs2_journal_access_gd(handle_t *handle, struct ocfs2_caching_info *ci,
 			    struct buffer_head *bh, int type);