On 20 Jul 2022, at 10:38, Jeff Layton wrote: > On Wed, 2022-07-20 at 16:15 +0200, Lukas Czerner wrote: >> >> Is there a different way I am not seeing? >> > > Right, implementing this is the difficult bit actually since this uses a > MS_* flag. If we do make this the default, we'd definitely want to > continue allowing "-o noiversion" to disable it. > > Could we just reverse the default in libmount? It might cause this to > suddenly be enabled in some deployments, but in most cases, people > wouldn't even notice and they could still specify -o noiversion to turn > it off. > > Another idea would be to introduce new mount options for this, but > that's kind of nasty from a UI standpoint. Is it safe to set SB_I_VERSION at export time? If so, export_operations could grow an ->enable_iversion(). Ben