Re: [PATCH 03/34] teach move_mount(2) to work with OPEN_TREE_CLONE [ver #12]

[David Howells]

The attached change seems to fix the lazy-umount problem.

David
---
diff --git a/fs/namespace.c b/fs/namespace.c
index 5adeeea2a4d9..d43f0fa152e9 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -2472,7 +2472,7 @@ static int do_move_mount(struct path *old_path, struct path *new_path)
 	if (old->mnt_ns && !attached)
 		goto out1;
 
-	if (old->mnt.mnt_flags & MNT_LOCKED)
+	if (old->mnt.mnt_flags & (MNT_LOCKED | MNT_UMOUNT))
 		goto out1;
 
 	if (old_path->dentry != old_path->mnt->mnt_root)