On 26/02/2019 15:44, David Howells wrote:
Alan Jenkins <alan.christopher.jenkins@xxxxxxxxx> wrote:
I can see that this covers copy_mnt_ns(). It should also cover what will
happen in future, if you pass an OPEN_TREE_CLONE fd to a process with a
different mnt_ns and mnt_ns->user_ns, and that process mounts the fd using
move_mount(). However, I can't work out how this covers mount propagation
across namespaces.
The comment "Notice when we are propagating across user namespaces" is moved
to attach_recursive_mnt(). I can't find any call to attach_recursive_mount()
inside the mount propagation code. Am I overlooking something?
You've spelt the function name two different ways?
Further, attach_recursive_mnt() calls propagation, not the other way round.
David (& Al)
Thanks!
I have a (positive) comment on the new mount API, that I was holding
back due to my confusion here. I will send it now.
Alan
