---
 fs/reiser4/lock.c |    5 +++++
 1 file changed, 5 insertions(+)

--- a/fs/reiser4/lock.c
+++ b/fs/reiser4/lock.c
@@ -641,6 +641,11 @@ void longterm_unlock_znode(lock_handle *
 			zput(node);
 			return;
 		}
+		if (znode_page(node) != NULL)
+			if (!PageDirty(znode_page(node))) {
+				warning("", "releasing last write-lock, but page is fishily clean");
+				dump_stack();
+			}
 	}
 
 	if (handle->signaled)