On Wed, 22 Jul 2026 at 18:36, Andy Lutomirski <[email protected]> wrote:
> 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. This is a super specialized use case. I sort of agree that doing statmount() as a syscall was not a bad idea. But new syscall for getting a backing layer, that makes sense on just a couple of filesystems? And that leaves us with ioctl. And ioclt() returning an open fd has it's own problems, besides ioctl being a generally bad interface. And we have all these powerful concepts and interfaces for filesystems, why the big resistance to actually using them?. Sure, it's easy to misuse, but I don't yet see why this particular case would be a misuse. Enlighten me please. Thanks, Miklos
