On Wed, Mar 10, 2021 at 04:29:51PM +0000, Al Viro wrote: > On Tue, Mar 09, 2021 at 04:53:42PM +0100, Christoph Hellwig wrote: > > Just use the generic anon_inode file system. > > Umm... The only problem I see here is the lifetime rules for > that module, and that's not something introduced in this patchset. > Said that, looks like the logics around that place is duplicated in > cmm.c, vmw_balloon.c and virtion_balloon.c and I wonder if it would > be better off with a helper in mm/balloon.c to be used for that setup... Independ of all other discussions untangling that mess does seem very useful.