diff --git a/xlators/performance/write-behind/src/write-behind.c b/xlators/performance/write-behind/src/write-behind.c
index 43956a9..d97812a 100644
--- a/xlators/performance/write-behind/src/write-behind.c
+++ b/xlators/performance/write-behind/src/write-behind.c
@@ -1667,7 +1667,8 @@ __wb_get_other_requests (list_head_t *list, list_head_t *other_requests)
 int32_t
 wb_stack_unwind (list_head_t *unwinds)
 {
-        struct iatt   buf = {0,};
+        struct iatt   prebuf = {0,};
+        struct iatt   postbuf = {0,};
         wb_request_t *request = NULL, *dummy = NULL;
         call_frame_t *frame = NULL;
         wb_local_t   *local = NULL;
@@ -1678,8 +1679,15 @@ wb_stack_unwind (list_head_t *unwinds)
                 frame = request->stub->frame;
                 local = frame->local;
 
-                STACK_UNWIND (frame, local->op_ret, local->op_errno, &buf,
-                              &buf);
+		/*
+		 * There are probably a lot of other problems with returning
+		 * these bogus iatts, but this fix at least gives us enough
+		 * information for features/quota to work (sort of).
+		 */
+		postbuf.ia_blocks = (request->write_size + 511) / 512;
+
+                STACK_UNWIND (frame, local->op_ret, local->op_errno,
+			      &prebuf, &postbuf);
 
                 ret = wb_request_unref (request);
                 if (ret == 0) {