Re: [PATCH v3 09/12] man/man2/open_tree.2: document "new" mount API

[Christian Brauner]

On Thu, Aug 21, 2025 at 03:27:26PM +0400, Askar Safin wrote:
> man open_tree says:
> > mount propagation
> > (as described in
> > .BR mount_namespaces (7))
> > will not be applied to bind-mounts created by
> > .BR open_tree ()
> > until the bind-mount is attached with
> > .BR move_mount (2),
> 
> It seems this is wrong, because this commit exists: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=06b1ce966e3f8bfef261c111feb3d4b33ede0cd8 .
> I'm not sure about this. (I didn't test this.)

No, it's correct. I reverted this because it broke userspace that relies
on this behavior.