diff --git a/fs/block_dev.c b/fs/block_dev.c
index 6641146..50e8c85 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -1340,10 +1340,12 @@
 	/*
 	 * hooks: /n/, see "layering violations".
 	 */
-	ret = devcgroup_inode_permission(bdev->bd_inode, perm);
-	if (ret != 0) {
-		bdput(bdev);
-		return ret;
+	if (!for_part) {
+		ret = devcgroup_inode_permission(bdev->bd_inode, perm);
+		if (ret != 0) {
+			bdput(bdev);
+			return ret;
+		}
 	}
 
  restart: