Re: [PATCH 01/33] vfs: syscall: Add open_tree(2) to reference or clone a mount [ver #11]

[David Howells]

Alan Jenkins <alan.christopher.jenkins@xxxxxxxxx> wrote:

> Another closely-related limitation of `mount`, is that it can't atomically set
> the propagation type at mount time.

I want to add a mount_setattr() too at some point:

	fd = open_tree(..., OPEN_TREE_CLONE);
	mount_setattr(fd, ...);
	move_mount(fd, ...);

I'm not sure whether you should be able to fchdir into the cloned tree since
it isn't attached to any mount namespace.

David