librbd: drop snap lock before sending copyup request

Signed-off-by: Mykola Golub <mgolub@suse.com>

diff --git a/src/librbd/io/ObjectRequest.cc b/src/librbd/io/ObjectRequest.cc
index 647282853b1ad606c08d20bcabe1bb38434a1948..9bb1f50e31c42de0b242007ae2a8ddc7f1ff503c 100644 (file)
--- a/src/librbd/io/ObjectRequest.cc
+++ b/src/librbd/io/ObjectRequest.cc
@@ -352,13 +352,15 @@ void ObjectReadRequest<I>::copyup() {
 
     image_ctx->copyup_list[this->m_object_no] = new_req;
     image_ctx->copyup_list_lock.Unlock();
+    image_ctx->parent_lock.put_read();
+    image_ctx->snap_lock.put_read();
     new_req->send();
   } else {
     image_ctx->copyup_list_lock.Unlock();
+    image_ctx->parent_lock.put_read();
+    image_ctx->snap_lock.put_read();
   }
 
-  image_ctx->parent_lock.put_read();
-  image_ctx->snap_lock.put_read();
   image_ctx->owner_lock.put_read();
   this->finish(0);
 }