On Wed, Jul 22, 2026 at 9:06 AM Christian Brauner <[email protected]> wrote:
> Like I said before: I'm fine with an API where we can use open_tree() to > see through into underlying layers, and given the right permission pull > a mount out of it. That is a narrow, checkable primitive and it needs > none of this. No new open flag, no second ->show_options, no metafs, no > mnt_devname surgery. That part we can potentially do. What, exactly, do you mean as the distinction between "[seeing] through into underlying layers" and "[pulling] a mount out of it". I have a guess, but I'm not convinced that my guess is right. Other than that question, I think I generally agree with you. The interesting operations here (getting an fd to something that was previously inaccessible) are different enough from normal path lookups that I think they deserve to be explicit syscalls or syscall modes, not magic links. --Andy
