|
Make a tmpfs unbindable, copy the mount namespace and check from the
copy that:
- a bind of the mount fails with EINVAL
- a recursive bind fails as well
- open_tree(OPEN_TREE_CLONE) of it fails
- mountinfo still shows it as unbindable
- a copy of the copy refuses the bind too
The first case runs in the original namespace so the fixture stays
honest about what it set up.
Link: https://patch.msgid.link/20260923-work-mount-fixes-v1-2-f424cf8d3242@kernel.org
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
|
