1 files changed, 30 insertions, 21 deletions

diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index 81751cd8361e..211baa7f4f0b 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -1094,40 +1094,39 @@ out_err:
  * each flag, once its value is set to 1 it is never reset to 0
  * again.
  */
-static void obj_request_done_set(struct rbd_obj_request *obj_request)
+static void obj_request_img_data_set(struct rbd_obj_request *obj_request)
 {
-	if (test_and_set_bit(OBJ_REQ_DONE, &obj_request->flags)) {
-		struct rbd_img_request *img_request = obj_request->img_request;
+	if (test_and_set_bit(OBJ_REQ_IMG_DATA, &obj_request->flags)) {
 		struct rbd_device *rbd_dev;
 
-		rbd_dev = img_request ? img_request->rbd_dev : NULL;
-		rbd_warn(rbd_dev, "obj_request %p already marked done\n",
+		rbd_dev = obj_request->img_request->rbd_dev;
+		rbd_warn(rbd_dev, "obj_request %p already marked img_data\n",
 			obj_request);
 	}
 }
 
-static bool obj_request_done_test(struct rbd_obj_request *obj_request)
+static bool obj_request_img_data_test(struct rbd_obj_request *obj_request)
 {
 	smp_mb();
-	return test_bit(OBJ_REQ_DONE, &obj_request->flags) != 0;
+	return test_bit(OBJ_REQ_IMG_DATA, &obj_request->flags) != 0;
 }
 
-static void obj_request_img_data_set(struct rbd_obj_request *obj_request)
+static void obj_request_done_set(struct rbd_obj_request *obj_request)
 {
-	if (test_and_set_bit(OBJ_REQ_IMG_DATA, &obj_request->flags)) {
-		struct rbd_img_request *img_request = obj_request->img_request;
-		struct rbd_device *rbd_dev;
+	if (test_and_set_bit(OBJ_REQ_DONE, &obj_request->flags)) {
+		struct rbd_device *rbd_dev = NULL;
 
-		rbd_dev = img_request ? img_request->rbd_dev : NULL;
-		rbd_warn(rbd_dev, "obj_request %p already marked img_data\n",
+		if (obj_request_img_data_test(obj_request))
+			rbd_dev = obj_request->img_request->rbd_dev;
+		rbd_warn(rbd_dev, "obj_request %p already marked done\n",
 			obj_request);
 	}
 }
 
-static bool obj_request_img_data_test(struct rbd_obj_request *obj_request)
+static bool obj_request_done_test(struct rbd_obj_request *obj_request)
 {
 	smp_mb();
-	return test_bit(OBJ_REQ_IMG_DATA, &obj_request->flags) != 0;
+	return test_bit(OBJ_REQ_DONE, &obj_request->flags) != 0;
 }
 
 static void rbd_obj_request_get(struct rbd_obj_request *obj_request)
@@ -1338,8 +1337,16 @@ static void rbd_osd_trivial_callback(struct rbd_obj_request *obj_request)
 
 static void rbd_osd_read_callback(struct rbd_obj_request *obj_request)
 {
-	struct rbd_img_request *img_request = obj_request->img_request;
-	bool layered = img_request && img_request_layered_test(img_request);
+	struct rbd_img_request *img_request = NULL;
+	bool layered = false;
+
+	if (obj_request_img_data_test(obj_request)) {
+		img_request = obj_request->img_request;
+		layered = img_request && img_request_layered_test(img_request);
+	} else {
+		img_request = NULL;
+		layered = false;
+	}
 
 	dout("%s: obj %p img %p result %d %llu/%llu\n", __func__,
 		obj_request, img_request, obj_request->result,
@@ -1382,10 +1389,12 @@ static void rbd_osd_req_callback(struct ceph_osd_request *osd_req,
 
 	dout("%s: osd_req %p msg %p\n", __func__, osd_req, msg);
 	rbd_assert(osd_req == obj_request->osd_req);
-	rbd_assert(obj_request_img_data_test(obj_request) ^
-				!obj_request->img_request);
-	rbd_assert(obj_request_img_data_test(obj_request) ^
-				(obj_request->which == BAD_WHICH));
+	if (obj_request_img_data_test(obj_request)) {
+		rbd_assert(obj_request->img_request);
+		rbd_assert(obj_request->which != BAD_WHICH);
+	} else {
+		rbd_assert(obj_request->which == BAD_WHICH);
+	}
 
 	if (osd_req->r_result < 0)
 		obj_request->result = osd_req->r_result;