On Mon, Jun 24, 2019 at 12:36 PM David Howells <dhowells@xxxxxxxxxx> wrote: > > Miklos Szeredi <mszeredi@xxxxxxxxxx> wrote: > > > What I'm saying is that with a new interface the rules need not follow > > the rules of the old interface, because at the start no one is using > > the new interface, so no chance of breaking anything. > > Er. No. That's not true, since the old interface comes through the new one. No, old interface sets SB_* directly from arg 4 of mount(2) and not via parsing arg 5. Thanks, Miklos